Siemens Robicon SCR Power Controls 3PCI Series 25A through 1200A Operation Manual
Siemens Robicon SCR Power Controls 3PCI Series 25A through 1200A Operation Manual
Siemens Robicon SCR Power Controls 3PCI Series 25A through 1200A Operation Manual
POWER CONTROL SERIES
SCR Power Controls
3PCI Series
25 A through 1200 A
Operation Manual
Manual Number: 19000325
Version 1.2
May 2006
WARNING
The use of an appropriate single-phase or three-phase fused disconnect or circuit breaker with this
Power Controller is required to ensure the safety of operating personnel.
HAZARDOUS VOLTAGES exist at the Power Controller Heat Sinks and at the Load, AT ALL
TIMES, when input voltage is connected. This condition exists even when the Power Controller is set
to deliver zero output.
The fused disconnect or circuit breaker must be open or OFF to perform maintenance of any kind,
including at the Load.
ORIGINAL EQUIPMENT MANUFACTURERS
—PLEASE NOTE—
If this Handbook is not supplied to the End User, a WARNING statement identical to the
above should be prominently displayed in the Installation and Operation Instructions provided
to the End User.
500 Hunt Valley Road, New Kensington, PA, USA 15068
Phone: 724-339-9500 Customer Support Phone: 724-339-9501 (24-hours)
Fax: 724-339-9562 Customer Support Fax: 724-339-4394
Web:
s Energy & Automation, Inc.
Large Drives ROBICON
https://www.robiconperfectharmony.com/
This manual applies to all 3PCI Series power controllers (25 A through 1200 A) manufactured by
sLD R and replaces manual 19000325 in its entirety.
SCR Power Controls 3PCI Operation Manual (p/n 19000325)
VERSION HISTORY
Version 1.0 May 2003
Version 1.1 July 2003
Version 1.2 May 2006
© 2006 by s. No portion of this document may be reproduced either mechanically or electronically without the prior consent
s LD R.
3PCI SCR Power Controller Series Manual Table of Contents
Version 1.2 (19000325) s i
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION
1.1. Overview..........................................................................................................................................1-1
1.2. Operation .........................................................................................................................................1-2
1.3. Three-phase Overcurrent (OC) Trip Feature ..................................................................................1-2
1.4. Three-phase Current Limit (CL) Feature.........................................................................................1-3
1.5. Options ............................................................................................................................................1-3
1.5.1. Three-phase Current Regulation (CR) Option ......................................................................1-3
1.5.2. Current Imbalance Detection (CID) Option ........................................................................1-3
1.5.3. Lug Kit (LK) Option .............................................................................................................1-3
1.5.4. Extended Ramp (ER) and Fast Ramp (FR) Options.............................................................1-3
1.6. Technical Specifications ..................................................................................................................1-3
CHAPTER 2: INSTALLATION
2.1. Mounting the 3PCI...........................................................................................................................2-1
2.2. Fan Wiring (Models Rated at 90 A and Higher) ..............................................................................2-1
2.3. Wiring Overtemperature Contacts...................................................................................................2-1
2.4. Input/Output Wiring..........................................................................................................................2-1
2.5. Internal 3PCI Connections...............................................................................................................2-4
CHAPTER 3: OPERATION
3.1. Introduction......................................................................................................................................3-1
3.2. Internal Manual Control of Power Output ........................................................................................3-1
3.3. Temperature Controller ...................................................................................................................3-2
3.4. Remote Manual Control (Only) with a Potentiometer.........................................................................3-2
3.5. Auto/Manual Control with a Controller and Remote Potentiometer ....................................................3-3
3.6. On/Off Control..................................................................................................................................3-3
3.6.1. Output Enabled by Contact Closure...................................................................................3-3
3.6.2. Output Disabled by Contact Closure ..................................................................................3-4
3.7. Controlling Several 3PCIs in Parallel with One Controller ..................................................................3-4
CHAPTER 4: OPTIONS SETUP
4.1. Introduction......................................................................................................................................4-1
4.2. Option CL (3-phase Current Limit)....................................................................................................4-1
4.3. Option CID (Current Imbalance Detector).......................................................................................4-1
4.4. Reset Push-button (User Supplied).................................................................................................4-1
4.5. Adjusting the Overcurrent (OC) Feature .........................................................................................4-1
CHAPTER 5: TROUBLESHOOTING
5.1. Customer Service Program .............................................................................................................5-1
5.2. Troubleshooting Typical Symptoms ................................................................................................5-1
5.3. Static Precautions When Servicing .................................................................................................5-1
5.4. Environmental Problems .................................................................................................................5-4
5.4.1. Inadequate Cooling ...........................................................................................................5-4
5.4.2. Contamination....................................................................................................................5-4
5.4.3. High Ambient Temperature ...............................................................................................5-4
5.4.4. Excessive Vibration ...........................................................................................................5-5
5.5. Input Power and Load Connections ................................................................................................5-5
5.6. Correcting Specific 3PCI Problems .................................................................................................5-5
5.7. Replacement Fuses.........................................................................................................................5-6
5.8. Torque Specifications ......................................................................................................................5-6
Table of Contents 3PCI SCR Power Controller Series Manual
ii s Version 1.2 (19000325)
CHAPTER 6: SERVICE
6.1. How to Contact s...............................................................................................................6-1
6.2. Spare Parts......................................................................................................................................6-1
6.3. Drawing List.....................................................................................................................................6-4
ADDENDUM ..............................................................................................................................................A-1
INDEX
SUPPLEMENTS
DRAWINGS
∇ ∇ ∇
3PCI SCR Power Controller Series Manual Table of Contents
Version 1.2 (19000325) s iii
LIST OF FIGURES
CHAPTER 1: INTRODUCTION
Figure 1-1. Typical 3PCI Power Controller............................................................................................1-1
Figure 1-2. Front, Cutaway and Side Views of a Typical 25A to 225A 3PCI Controller........................1-2
CHAPTER 2: INSTALLATION
Figure 2-1. Typical 3PCI Line and Load Connections...........................................................................2-2
Figure 2-2. Input and Output Connections Overview for the 3PCI........................................................2-3
CHAPTER 3: OPERATION
Figure 3-1. Automatic Controller Input Connections .............................................................................3-2
Figure 3-2. Remote Control with a Potentiometer .................................................................................3-2
Figure 3-3. Auto/Manual Control with Controller and Remote Potentiometer.......................................3-3
Figure 3-4. On/Off Control with Output Enabled by Contact Closure....................................................3-3
Figure 3-5. On/Off Control with Output Disabled by Contact Closure...................................................3-4
Figure 3-6. Controlling Several 3PCIs Connected in Parallel................................................................3-4
LIST OF TABLES
CHAPTER 1: INTRODUCTION
Table 1-1. General Technical Specifications........................................................................................1-4
Table 1-2. 3PCI Model Number Code Descriptions .............................................................................1-5
CHAPTER 2: INSTALLATION
Table 2-1. Wire Size Information..........................................................................................................2-2
Table 2-2. Terminal Block Specifications .............................................................................................2-3
CHAPTER 3: OPERATION
Table 3-1. Matching SCR Power Control to an External Controller Signal..........................................3-1
CHAPTER 5: TROUBLESHOOTING
Table 5-1. 3PCI Troubleshooting Symptoms and Solutions ................................................................5-5
Table 5-2. Fuse Specifications .............................................................................................................5-6
Table 5-3. Torque Specifications Based on Conductor Sizes..............................................................5-7
Table 5-4. Torque Specifications Based on Socket Sizes (For All Conductor Sizes)..........................5-7
CHAPTER 6: SERVICE
Table 6-1. Spare Parts .........................................................................................................................6-1
Table 6-2. Drawing List.........................................................................................................................6-3
∇ ∇ ∇
Table of Contents 3PCI SCR Power Controller Series Manual
iv s Version 1.2 (19000325)
3PCI SCR Power Controller Series Manual Introduction
Version 1.2 (19000325) s 1-1
CHAPTER 1: INTRODUCTION
In This Section:
• Overview ..............................................................1-1
• Operation .............................................................1-2
• Three-phase Overcurrent (OC) Trip Feature.......1-2
• Three-phase Current Limit (CL) Feature .............1-2
• Options.................................................................1-3
• Technical Specifications ......................................1-3
1.1. Overview
This manual covers the 3PCI (3-phase, cosine intercept) series of power controllers by sLD R. The
3PCI models are rated from 25 A through 1200 A (as specified in Table 1-2 on page 1-5). Series 3PCI power
controllers provide control of three-phase power to resistive and inductive loads. The 3PCI utilizes infinite
firing angle resolution for precise SCR control. A typical 3PCI is illustrated in Figure 1-1.
Figure 1-1. Typical 3PCI Power Controller
The 3PCI is a three-phase, phase-fired power controller, and can operate with a wide variety of input signals
and line voltages. The 3PCI’s output voltage is proportional to the control input signal, with the output voltage
regulated to ±0.5% with a ±10% line voltage change. The 3PCI features cosine intercept, hard-gate firing
which provides high immunity to possible SCR firing disturbances. Other features include the following:
• input isolation from ground (galvanic)
• soft-start capability
• automatic restart circuitry
• 50/60 Hz operation without any required changes.
Terminals are provided to permit connection of a variety of external control methods. Terminals, dimensions,
and key components are illustrated in Figure 1-2.
Introduction 3PCI SCR Power Controller Series Manual
1-2 s Version 1.2 (19000325)
Figure 1-2. Front, Cutaway and Side Views of a Typical 25A to 225A 3PCI Controller
1.2. Operation
The 3PCI accomplishes phase fired control by the switching action of three pairs of inverse-parallel power
SCRs. The switching, or gating, of the SCRs is controlled by a digital firing control circuit synchronized “in
phase” with the line frequency (either 50 or 60 Hz). The digital firing circuit may be manually controlled by the
BIAS control, or automatically or manually controlled by one of several external methods.
Screwdriver-adjusted BIAS and GAIN controls are used to set up the 3PCI for operation by external control.
Chapter 3: Operation describes how to implement the various control methods.
1.3. Three-phase Overcurrent (OC) Trip Feature
The three-phase overcurrent trip (OC) feature provides circuit protection from output current overloads by
serving as a fast-gate shutdown. (OC functions similar to an electronic fuse.) The trip point is adjustable from
25% to 200% of the SCR power controller’s rating. Current transformers on the SCR power controller’s
output lines allow option OC to monitor instantaneous peak current. When the peak current level exceeds the
preset trip level, SCRs are gated off, and the load current is shut down within a half cycle. The TRIP RESET
push-button can be configured for automatic or manual reset to resume operation. See Section 4.5: Adjusting
the Overcurrent (OC) Feature.
The overcurrent (OC) feature is used mainly for the fuseless RF generator design (model RF3PI). The
leakage impedance (LZ) and the transformer’s maximum KVA determine what maximum thermal-rated
current power controller will be needed. Additional connections need to be made from the OC relay contact
and the customer’s circuit breaker or the plate contactor.
The OC feature shuts down the controller within the first half cycle of fault current. Then the overcurrent relay
opens the circuit breaker or plate contactor to clear the fault. For a fused design, the fuse will open at the
same time the OC feature trips. This feature is not recommended for fused designs.
To adjust the overcurrent (OC) feature, follow the instructions listed in Chapter 4: Options Setup.
Overcurrent (OC) trip relay contacts are available at terminals TB2-40, TB2-41 and TB2-42.
1.4. Three-phase Current Limit (CL) Feature
The 3-phase current limit (CL) feature prevents the output current of an SCR power controller from exceeding
a preset maximum current level, as determined by the current limit control setting (5% to 125%). Current
*
3PCI SCR Power Controller Series Manual Introduction
Version 1.2 (19000325) s 1-3
transformers monitor the true rms current, and feed the information to option CL, which limits the true rms
current regardless of the process control signal.
1.5. Options
Several options are available on the 3PCI. Several of these options are listed below and explained in the
subsections that follow.
• Three-phase Current Regulation (CR) Option
• Current Imbalance Detection (CID) Option
• Lug Kit (LK) Option
• Extended Ramp (ER) and Fast Ramp (FR) Options.
Most options require current transformers (CTs), which are standard on models rated from 25 A through
225 A. CTs are shipped separately on models rated from 350 A and higher.
1.5.1. Three-phase Current Regulation (CR) Option
The 3-phase Current Regulation (CR) option compares the feedback signal to the control signal, so the line
current will be linear to the control signal, and regulated to maintain a constant current level at the controller
output despite load changes. Current regulation is adjustable from 5% to 125% of the CT rating.
1.5.2. Current Imbalance Detection (CID) Option
The Current Imbalance Detection (CID) option continuously compares the load currents of each phase.
When an imbalance exceeds a pre-determined limit value (5% to 50%), a set of form-C contacts may be
used to alarm and/or turn off the process.
1.5.3. Lug Kit (LK) Option
If required by an application, an optional lug kit (Option LK) is offered. Lug kits are available on 350 A
through 1200 A units. Lugs are provided on 25 A through 225 A units.
1.5.4. Extended Ramp (ER) and Fast Ramp (FR) Options
The increasing rate of the output voltage RMS value is limited to prevent high inrush currents with
transformer-coupled loads or with elements having high cold-to-hot resistance ratios. With a nominal gain
setting, the rate of increase is limited to approximately 100% per second. Additional protective circuits prevent
excessive output bursts due to the fluctuations of re-applied AC source voltage.
The standard ramp time is 1 second. By specifying option ER, the soft-start ramp is increased to 4 seconds.
A fast ramp option (FR) reduces the ramp time to 0.100 seconds (100 ms).
1.6. Technical Specifications
Specifications for the 3PCI SCR Power Controller are given in Table 1-2 and Table 1-1.
Table 1-1. General Technical Specifications
Item Description
Input line voltage1
208, 240, 400, 480, 600 VAC (+10%, -20%) 3-phase
Line frequency1
50/60 Hz (no circuit change is necessary for either)
Current rating1
25 AAC or 1200 AAC per model number (see Table 1-2)
Thermostat contact
rating
120 VAC, 5 A, resistive
Input signal Galvanic isolation: 0-1.5 V (min) 0-15 V (max)
*
Introduction 3PCI SCR Power Controller Series Manual
1-4 s Version 1.2 (19000325)
Item Description
0-1 mA (min) 0-3 mA (max)
0-3 mA (min) 0-30 mA (max)2
Control methods: 1. Potentiometer3
(5 kΩ, 0.5 watt)
2. Dry contact closure3
3. Temperature or process controller4
Control signal input
impedance1 Non isolated input (galvanic isolation); 250 Ω, 0.5 watt
standard
Control signal
isolation
From SCRs: 2,500 VDC
From AC power input lines: 2,500 VDC 2,200 VAC
From chassis: 500 VDC 1,000 VAC
Power output Voltage regulation: ±0.5% per ±10% line voltage change
Linearity vs. Control signal input: ±2% (galvanic isolation)
Power SCRs
protection
Current surge: Subcycle I2
T semiconductor fuse
Transient voltage
spikes (dV/dt): Metal oxide varistor (MOV) and RC
snubber across each SCR pair; all SCRs
have PIV rating of 1,400 V.
Output voltage
change vs. Ambient
temperature change
0.18% per °F
0.10% per °C
Phase-firing time
base
0° to 180° conduction per SCR
Controls (pots) 3 (bias, gain and current limit) multi-turn, screwdriveradjustable pots
Fan cooling power 50 Hz Unit 60 Hz Unit
90-225 A units: 0.42 A, 50 VA 0.38 A, 46 VA
350-500 A units: 0.63 A, 76 VA 0.57 A, 69 VA
650-1200 A units: 4.2 A, 504 VA 3.6 A, 432 VA
Ambient temperature
range
Operation: 32°F to 122°F (0°C to 50°C)
Storage: 14°F to 158°F (-10°C to 70°C)
Weight Current Rating lbs Kg
25 through 225 A units 40 18.2
350 through 500 A units 60 27.3
650 A units 126 57.3
800 through 1,200 A units 231 105.0
1 - Must be specified with order
2 - With 250Ω input impedance
3 - Supplied by customer
4 - If a temperature/process controller will be used, provide its output specifications when the order is placed
(e.g., 4-20 mA, 0-10 VDC, 2-10 VDC, etc.).
3PCI SCR Power Controller Series Manual Introduction
Version 1.2 (19000325) s 1-5
Table 1-2. 3PCI Model Number Code Descriptions
3PCI-___ -_____ -CL/OC-D-__ -____________ -__________ -________
Voltage
(Volts)
Current
(Amps)
Input Type General Options Ramp Rate
Options
Optional
Lug Kit
20=208 V
24=240 V
40=380/415 V
48=480 V
60=600 V
25
40
60
90
120
180
225
350
500
650
800
1000
1200
1=0-5 mA
2=0-20 mA
3=0-50 mA
4=1-5 mA
5=4-20 mA
6=12-20 mA
7=0-5 VDC
8=0-10 VDC
9=pot input
CID = Current
imbalance
detection
CR = Current
regulation
FR =0.100 sec
ER = 4.000 sec
blank
LK1
1 - Add “LK” if lugs are required for 350-1200 A units. Lugs are standard on 15-225 A units. If left blank, lug kit is not
added.
Voltage and current ratings are implicit in the model number as shown in the above table.
∇ ∇ ∇ *
Introduction 3PCI SCR Power Controller Series Manual
1-6 s Version 1.2 (19000325)
3PCI SCR Power Controller Series Manual Installation
Version 1.2 (19000325) s 2-1
CHAPTER 2: INSTALLATION
In This Section:
• Mounting the 3PCI .......................................................2-1
• Fan Wiring (Models Rated at 90 A and Higher)...........2-1
• Wiring Overtemperature Contacts ...............................2-1
• Input/Output Wiring......................................................2-1
• Adjusting the Overcurrent (OC) Feature......................2-1
• Internal 3PCI Connections...........................................2-4
2.1. Mounting the 3PCI
Determine the voltage and current ratings from the nameplate of the unit (refer to Table 1-2 on page 2-5).
Then determine space and mounting hole requirements by referring to the appropriate outline drawing
(located at the end of this manual) that applies to your model’s current rating. Mount the unit so that the line
and load connections are at the top and ensure that upward air flow over the heat sink fins is unrestricted. On
high current models, allow adequate clearance for routing the relatively large diameter input and output lines.
Caution! Printed circuit boards contain sensitive components that can be damaged by electrostatic
discharge (ESD). The 3PCI power controllers are shipped from the factory wrapped in static-free
packing materials. Avoid handling the printed circuit board unless ESD protection has been observed.
Details concerning ESD protection can be found in Section 5.3: Static Precautions When Servicing on
page 5-1 in the Troubleshooting section of this manual.
2.2. Fan Wiring (Models Rated at 90 A and Higher)
3PCI models with cooling fans require 120 Vac power which must be supplied by the customer. Power
requirements are shown in Table 1-1 on page 1-3.
The 3PCI terminals available for the 120 Vac fan connections are shown in the drawings at the rear of this
manual. Locate the correct drawing for your model’s current rating.
Caution! The application of fan power should precede, or coincide with, the turn-on of the line voltage
source that is to be controlled by the 3PCI. How this is accomplished and ensured is up to the
customer.
2.3. Wiring Overtemperature Contacts
Normally-open (N.O.) heat sink thermostats are standard on all fan-cooled models (rated 90 A and higher).
These thermostats, which close on high heat sink temperature (200° F), may be used to initiate an alarm,
shunt trip, or other device for SCR protection.
If desired, normally-closed (N.C.) contacts may be ordered rather than normally-open (standard). Heat sink
thermostats are optional on units with current ratings lower than 90 A, and can be ordered with either N.O. or
N.C. contacts.
2.4. Input/Output Wiring
Using appropriately sized and insulated conductors for the voltage and current ratings of your model, make
connections as shown in Figure 2-1 and Figure 2-2. (Refer to Table 2-1 on page 2-2 for wire size
information.) Torque specifications of bolted connections can be found in Table 5-3 and Table 5-4 starting on
page 5-5.
Installation 3PCI SCR Power Controller Series Manual
2-2 s Version 1.2 (19000325)
Wiring rated at 75°C is required for all 3PCI model current ratings.
The 3PCI is phase-rotation insensitive. That is, three-phase input power can be connected in any
sequence to terminals L1, L2, and L3, and will not cause an out-of-phase condition.
Warning! Branch circuit overcurrent protection required is to be provided in accordance with the
national and local codes of the inspecting authority.
AC Input Load 321 321
Figure 2-1. Typical 3PCI Line and Load Connections
Table 2-1. Wire Size Information
Current Rating Smallest Allowable
Conductor Size
Largest Allowable
Conductor Size
60, 90 and 120 A 8 AWG 0 AWG
180 and 255 A 6 AWG 250 MCM1
350 through 1,200 A n/a n/a
1 - 1 MCM = 1000 CM (circular mils)
**
Terminal Terminal
3PCI SCR Power Controller Series Manual Installation
Version 1.2 (19000325) s 2-3
34 82
4 (Gnd)
CW
7
1 (Gnd)
Figure 2-2. Input and Output Connections Overview for the 3PCI
Table 2-2. Terminal Block Specifications
Pin # Description Terminal Block
1 Common
2 Voltage input
3 Shutdown
4 Common
5 +15 VDC
6 -15 VDC
7 + mA input
8 +10 VDC
9 External feedback
10
11 +26 VDC
12
40 N.C. OC relay
41 Common OC relay
42 N.O. OC relay
43 OC reset
44 OC reset
45
1 2 3 4 5 6 7 8 9 10 11 12
40 41 42 43 44 45
Installation 3PCI SCR Power Controller Series Manual
2-4 s Version 1.2 (19000325)
2.5. Internal 3PCI Connections
Before operating the 3PCI, the customer must determine which control signal is used. The 3PCI will operate
at 50/60 Hz with no circuit changes required.
∇ ∇ ∇
3PCI SCR Power Controller Series Manual Operation
Version 1.2 (19000325) s 3-1
CHAPTER 3: OPERATION
In This Section:
• Introduction ........................................................................................ 3-1 • Internal Manual Control of Power Output ...........................................3-1 • Temperature Controller.......................................................................3-2 • Remote Manual Control (Only) with a Potentiometer ............................3-2 • Auto/Manual Control with a Controller and Remote Potentiometer........3-3 • On/Off Control.....................................................................................3-3 • Controlling Several 3PCIs in Parallel with One Controller .....................3-4
3.1. Introduction
This section provides information necessary for proper setup and operation of various methods used to
control the 3PCI. These methods are:
1. Internal manual control of power output
2. Temperature controller
3. Remote manual control (only) with a potentiometer
4. Auto/manual control with a controller and potentiometer
5. On/off control
6. Controlling several 3PCIs connected in parallel.
3.2. Internal Manual Control of Power Output
The 3PCI should be tested and operated with an adequate load since an open output will have line
voltage at the load connections.
For the following procedures, measurements of the output voltage should be made with an analog
voltmeter or a digital voltmeter that reads true rms.
Warning! Hazardous voltages exist at the 3PCI output terminals and at the load when the input
voltage is connected–even when the 3PCI is set to deliver zero output by any of the control methods
described in this section. The line input fused disconnect or circuit breaker must be “open” or “off”
(including at the load) to perform maintenance of any kind.
Prior to shipment the 3PCI unit is configured at the factory according to the customer’s requirements. If no
requirements are specified, the standard unit is configured for 4-20 mA operation into a 250 Ω impedance.
see Table 3-1.
Table 3-1. Matching SCR Power Control to an External Controller Signal
Source Type Ranges Input Impedance
Voltage input 0-1.5 V, 0-15 V, 1-5 V, 2-10 V > 100 KΩ1
Current input 0-1 mA, 0-3 mA, 0-30 mA, 4-20 mA 250 Ω1
1 - Consult the factory for other input impedances.
**
Operation 3PCI SCR Power Controller Series Manual
3-2 s Version 1.2 (19000325)
3.3. Temperature Controller
A wide range of controller outputs can be used to drive the 3PCI. The range of acceptable full scale output
voltages is from a minimum of 0-5 VDC to a maximum of 10 VDC. Since most controllers have a current
output, the input impedance of the 3PCI on TB1-1 (-) and TB1-2 (+) is 0.05 to 10 VDC for voltage control. For
milliamp control, connect to TB1-1 (-) and TB1-7 (+). Input impedance is 250 Ω.
Although the 3PCI unit is factory set for control as specified on the unit’s decal, temperature control
calibration may be performed as follows:
1. Connect a 4-20 mADC control signal to TB1-7 (+ input) and TB1-1 (- input) as shown in Figure 3-1.
2. Using a voltmeter to monitor output voltage, adjust the bias control until some voltage is seen. Then
adjust the bias counter-clockwise (CCW) until the output voltage is as close to zero as possible.
3. Set the temperature controller to demand 100% output. Observing the voltmeter, adjust the gain until
the voltage reading is slightly below the maximum output voltage.
4. Repeat the previous steps to ensure that the proper control adjustments have been made.
5. Turn off the line power to the 3PCI and disconnect the test equipment. The 3PCI is now ready for
automatic operation.
Automatic
Controller +-
7 (+ input)
1 (- input) or 4 (- input)
TB1
Figure 3-1. Automatic Controller Input Connections
3.4. Remote Manual Control (Only) with a Potentiometer
This potentiometer may be located on a remote panel near other controls related to the process being
powered by the 3PCI. It may be calibrated to correspond to a percentage of rated power output, process
temperature, or some other parameter. The potentiometer may be 500 Ω to 5 kΩ, and should be rated at 0.5
watt, minimum.
1. With the power to the 3PCI turned off, connect the potentiometer as shown in Figure 3-2. The CW
position is the full power output position. Terminal TB1-8 is internally connected to a positive DC voltage
source.
2. Connect an analog voltmeter across terminals X1, X2, or X3. Set the voltmeter range to measure the full
output voltage.
3. Set the remote potentiometer fully CCW.
4. Close the fused disconnect or circuit breaker to apply power to the 3PCI. The unit should be energized,
with no output.
5. Adjust the bias control for zero output voltage.
6. Adjust the manual pot fully CW. Adjust the gain control for maximum output voltage.
8 (+10 Vdc)
2 (+ Input)
4 (Common) or 1 (Common)
TB1
Manual
Pot
(5 kΩ)
CW
Figure 3-2. Remote Control with a Potentiometer
Caution - Electrical Hazard! Hazardous voltages exist at the exposed 3PCI heat sinks and at
the load unless the line-source fused disconnect or circuit breaker is open or off. This is true even
when the SCRs are turned off. Always remove power to the unit before attempting service.
3PCI SCR Power Controller Series Manual Operation
Version 1.2 (19000325) s 3-3
3.5. Auto/Manual Control with a Controller and Remote Potentiometer
Following the instructions detailed in the previous section (Section 3.4: Remote Manual Control (Only) with a
Potentiometer), select and install the remote potentiometer. Install the AUTO/MAN switch in the same
general location as the remote manual potentiometer.
With the power to the 3PCI turned off, connect the switch, potentiometer, and controller as shown in
Figure 3-3. Note that the full CW position of the potentiometer is the full-power output position.
Place the AUTO/MAN switch to AUTO and calibrate the system as outlined in Section 3.3: Temperature
Controller on page 3-2.
1 (- input) (common)
7 (+ input)
2 (man pot)
4 (common)
8 (+10 VDC)
-
Controller + ↓ CW
Man
Pot
Auto/Manual
TB1
Figure 3-3. Auto/Manual Control with Controller and Remote Potentiometer
3.6. On/Off Control
Two methods of on/off control are provided:
1. Output enabled by contact closure
2. Output disabled by contact closure.
3.6.1. Output Enabled by Contact Closure
With the power to the 3PCI turned off, connect the system as shown in Figure 3-4. Calibrate the system
as outlined in Section 3.3: Temperature Controller on page 3-2. Note that zero power demand is
accomplished by opening the contacts with the controller, and maximum power demand is present when the
contacts are closed.
8 (+10 Vdc)
2 (+ Input)
TB1
Controller
K
Figure 3-4. On/Off Control with Output Enabled by Contact Closure
3.6.2. Output Disabled by Contact Closure
With the power to the 3PCI turned off, connect the system as shown in Figure 3-5.
Operation 3PCI SCR Power Controller Series Manual
3-4 s Version 1.2 (19000325)
3 (Shutdown)
4 (Common)
TB1
Controller
K
Figure 3-5. On/Off Control with Output Disabled by Contact Closure
Calibrate the system as outlined in Section 3.3: Temperature Controller on page 3-2. Note that zero power
demand is accomplished by closing the contacts with the controller, and maximum power demand is present
when the contacts are open.
3.7. Controlling Several 3PCIs in Parallel with One Controller
Multiple control of parallel connected 3PCIs with a single controller is outlined below.
1. Connect each unit as shown in Figure 3-6. Refer to Section 3.3: Temperature Controller on page 3-2.
2. Remove the external shunt resistor R101 on all of the units.
3. Connect the remaining units in parallel as shown in Figure 3-6.
4. Connect the appropriate impedance matching resistor (RC) for your controller across the output
terminals of the controller as shown in Figure 3-6. This will assure proper operation of all controllers.
RC is usually 250Ω or 500Ω.
5. Calibrate the system as outlined in Section 3.3: Temperature Controller on page 3-2.
TB1
Unit 1
12
TB1
Unit 2
12
TB1
Unit 3
12
TB1
Unit 4
12
TB1
Unit n 12
Controller RC
Figure 3-6. Controlling Several 3PCIs Connected in Parallel
∇ ∇ ∇
3PCI SCR Power Controller Series Manual Options Setup
Version 1.2 (19000325) s 4-1
CHAPTER 4: OPTIONS SETUP
In This Section:
• Introduction ................................................... 4-1
• Option CL (3-phase Current Limit)................. 4-1
• Option CID (Current Imbalance Detector) .... 4-1
• Reset Push-button ........................................ 4-1
• Adjusting the Overcurrent (OC) Feature....... 4-1
4.1. Introduction
This section describes the setup procedures for the following 3PCI options:
• Option CL (3-phase current limit) setup
• Option CID (current imbalance detector) calibration
• Reset push-button setup (user supplied).
4.2. Option CL (3-phase Current Limit)
Refer to Chapter 3: Operation and review the appropriate setup procedures for the BIAS and GAIN controls.
Then adjust option CL as follows:
1. Adjust the CURRENT LIMIT potentiometer fully CW.
2. Adjust BIAS and GAIN as previously described in Chapter 3: Operation.
3. Adjust the CURRENT LIMIT potentiometer full CCW.
4. Increase the input control signal to demand full output.
5. Adjust the CURRENT LIMIT potentiometer until maximum current level is reached.
4.3. Option CID (Current Imbalance Detector)
A separate box is included if the CID option is specified. For calibration information, refer to data shipped
with the CID option.
4.4. Reset Push-button (User Supplied)
1. Connect a normally-closed (N.C.) push-button switch to TB2, terminals 43 and 44.
2. Remove jumper J2 from the printed circuit board.
Overcurrent (OC) trip relay contacts are available at terminals TB2-40, TB2-41 and TB2-42.
4.5. Adjusting the Overcurrent (OC) Feature
To adjust the overcurrent (OC) feature, follow the instructions below.
1. Run the unit in a normal load configuration and adjust the current trip (CT) adjustment clockwise (CW)
until the unit starts to trip.
2. Then adjust the current trip (CT) adjustment counter-clockwise (CCW) until steady operation starts.
3. Turn the current trip (CT) adjustment counter-clockwise (CCW) another quarter turn.
Overcurrent (OC) trip relay contacts are available at terminals TB2-40, TB2-41 and TB2-42.
∇ ∇ ∇ **
Options Setup 3PCI SCR Power Controller Series Manual
4-2 s Version 1.2 (19000325)
3PCI SCR Power Controller Series Manual Troubleshooting
Version 1.2 (19000325) s 5-1
CHAPTER 5: TROUBLESHOOTING
In This Section:
• Customer Service Program ................ 5-1
• Troubleshooting Typical Symptoms.... 5-1
• Static Precautions When Servicing..... 5-1
• Environmental Problems..................... 5-2
• Input Power and Load Connections.... 5-3
• Correcting Specific 3PCI Problems .... 5-3
• Replacement Fuses............................ 5-4
• Torque Specifications ......................... 5-4
5.1. Customer Service Program
Although service is seldom necessary, because of the inherent long-term reliability of solid-state components
and conservative design, sLD R emphasizes customer satisfaction by maintaining a rapid-response,
cooperative customer-service. If operational difficulties occur, sLD R will provide replacement parts
or units quickly, courteously and efficiently. If servicing problems arise that are not within the scope of the
following troubleshooting guide, service is readily available, as detailed Chapter 6: Service.
5.2. Troubleshooting Typical Symptoms
The 3PCI is considered to be operating properly when it’s output voltage can be satisfactorily varied from 0%
to 100% of the available input voltage by a control signal. Improper operation of the unit is usually indicated
by one of the following symptoms:
1. No output.
2. Full output at all times, with no change resulting from a control signal change.
3. Output variable from some intermediate value to maximum, but cannot be brought to zero.
4. Output variable from zero to some intermediate value, but cannot be brought to maximum.
The symptoms listed may be caused by one or more of the following: an environmental problem, faulty
input-power or load connections, and the 3PCI itself. These possible causes should be investigated as
described in sections that follow.
The 3PCI should be tested and operated with an adequate load since an open output will have
line voltage at the load connections.
5.3. Static Precautions When Servicing
Servicing should be performed by qualified personnel only, following procedures described herein.
Caution - Electrical Hazard! Hazardous voltages exist at the exposed 3PCI heat sinks and at the
load unless the line-source fused disconnect or circuit breaker is open or off. This is true even when the
SCRs are turned off. Always remove power to the unit before attempting service.
If troubleshooting indicates a need to replace a component on a printed circuit board or possibly the entire
board, measures to prevent electrostatic discharge (ESD) damage must be taken.
*
Troubleshooting 3PCI SCR Power Controller Series Manual
5-2 s Version 1.2 (19000325)
ESD Sensitive Equipment!
Always be aware of electrostatic discharge (ESD) when working near or touching 3PCI
components. Printed circuit boards contain components that are sensitive to static electricity.
Handling and servicing of components that are sensitive to ESD should be done only by qualified
personnel and only after reading and understanding proper ESD techniques. The following ESD
guidelines should be followed. Following these rules can greatly reduce the possibility of ESD
damage to PC board components.
• Make certain that anyone handling the 3PCI printed circuit boards is
wearing a properly grounded static strap. The wrist strap should be connected to ground
through a 1 megohm resistor. Grounding kits are available commercially through most
electronic wholesalers.
• Static charge buildup can be removed from a conductive object by touching the object to a
properly grounded piece of metal.
• Always transport static sensitive equipment in antistatic bags or along static shielding
rails. A part that is completely installed on a board does not make the part static-safe.
• When handling a PC board, always hold the card by its edges.
• Do not slide printed circuit boards across any surface (e.g., a table or work bench). If possible,
perform PCB maintenance at a workstation that has a conductive covering which is grounded
through a 1 megohm resistor. If a conductive tabletop cover is unavailable, a clean steel or
aluminum tabletop is an excellent substitute.
• Avoid plastic, Styrofoam™, vinyl and other non-conductive materials. They are excellent static
generators and do not give up their charge easily.
• Always use a soldering iron that has a grounded tip. Also, use either a metallic vacuum-style
plunger or copper solder removal braid when desoldering.
• When returning components to sLD R, always use static-safe packing.
This limits any further component damage due to ESD.
5.4. Environmental Problems
Many reported problems with the 3PCI are the result of environmental issues. Below is a list of common
environmental problems that may cause problems with the operation of the 3PCI. Ensure that none of the
following environmental problems exist.
• Inadequate cooling
• Contamination
• High ambient temperatures
• Excessive vibration.
5.4.1. Inadequate Cooling
For models with separate power and trigger modules, allow at least an inch of air space (in any direction)
between the heat sinks and any item or structure near the 3PCI power modules. Heat sink fins should be
free of dust or dirt for proper heat transfer, and free of obstructions which could prevent proper airflow.
5.4.2. Contamination
The unit should be periodically cleaned of all dust and dirt. However, certain kinds of dust or particles are
particularly conductive. A small accumulation of conductive material can cause component failures from
arcing or complete shorts.
5.4.3. High Ambient Temperature
Lack of a proper ambient-temperature check before installation, or an increase in ambient temperature, can
result in numerous problems. Check the ambient temperature under existing conditions. If it is 122°F (50°C)
or lower, ambient temperature should not be a problem. If it is above 122°F (50°C), steps should be taken to
3PCI SCR Power Controller Series Manual Troubleshooting
Version 1.2 (19000325) s 5-3
provide more cooling, or the 3PCI should be moved to a cooler location, or call the ROBICON service
department.
5.4.4. Excessive Vibration
A significant degree of pitched or unpitched vibration can cause numerous problems. If vibration is isolated as
a probable cause of improper operation, standard vibration-isolation mounting techniques should be
employed.
5.5. Input Power and Load Connections
Turn off the power to the 3PCI and check all power connections, input and output, to make sure they are
mechanically secure and free of corrosion. Make the same checks at the power source and load. Visually
check insulation on input and load wiring for evidence of damage or overheating.
5.6. Correcting Specific 3PCI Problems
Table 5-1 provides a comprehensive guide for troubleshooting the 3PCI. Refer to this table for possible
causes and solutions.
Table 5-1. 3PCI Troubleshooting Symptoms and Solutions
Symptom Possible Cause(s) Possible Solution(s)
1. No output–
even with manual
control (BIAS)
turned full CW.
(a) System has an
open SCR fuse.
(b) SCRs are not
firing.
(a) Remove and check the fuse. If it
has opened, replace it after
completing (b).
(b) Install a good fuse in the circuit, and
apply power to the 3PCI. If the
output is fully controllable using the
manual control, then resume normal
operation. If the power output is still
zero, contact ROBICON service.
2. Output is
variable, but
cannot be
brought to zero
with bias control.
(a) SCR network
shorted.
(b) Firing control
section
defective.
(a) Check SCR network per solution
listed below in solution 4(a).
(b) Contact ROBICON service for
assistance.
3. Output is
variable, but
cannot be
brought to
maximum with
GAIN control.
(a) Firing control
section
defective.
(a) Contact ROBICON service for
assistance.
4. Maximum
power at all times
regardless of the
control setting.
(a) All SCR
networks are
shorted.
(b) Firing control
section
defective.
(a) On units rated above 225 A:
Remove the fuse and check the
front-to-back SCR pairs by
measuring resistance between the
cathode of the SCR being checked
and an unanodized portion of the
heat sink. On the R×1 scale, the
resistance should be infinite in both
directions. If a shorted component
is indicated in any of these checks,
Troubleshooting 3PCI SCR Power Controller Series Manual
5-4 s Version 1.2 (19000325)
Symptom Possible Cause(s) Possible Solution(s)
replace it.
On units rated at 225 A and below:
Remove the fuse and check the
front-to- back SCR pairs by
measuring resistance between
terminals L1 (of the SCR) and X1.
On the R×1 scale, the resistance
should be infinite in both directions.
If a shorted component is indicated
in any of these checks, replace it.
5.7. Replacement Fuses
Table 5-2 lists the replacement fuses for the various 3PCI models. The 3PCI may come supplied with fuses
having identifying numbers different from the numbers shown in the table. In such a case, the fuse may be
replaced either with an identical fuse or the one shown in the table.
Table 5-2. Fuse Specifications
Vendor Part Numbers
Amperes Buss Gould-Shawmut Carbone-Ferraz
25 FWP-40 A70P40 A070F040
40 FWP-60 A70P60 A070F060
60 FWP-125A A70P125 A070F125
90 FWP-125A A70P125 A070F125
120 FWP-150A A70P150 A070F150
180 FWP-225A A70P225 A070F225
225 FWP-300A A70P300 A070F300
350 FWP-450A n/a A070F450
500 FWP-600A A70P600 A070F600
650 FWP-800A A70P800 A070F800
800 FWP-1000A A70P1000 A070F1000
1000 FWP-1200A A70P1200 A070F1200
1200 n/a A70P1600 n/a
5.8. Torque Specifications
Torque specifications for 3PCI connections are given in Table 5-3 and Table 5-4.
3PCI SCR Power Controller Series Manual Troubleshooting
Version 1.2 (19000325) s 5-5
Attention! All input and output conductors should have a minimum temperature rating of 75°C.
Table 5-3. Torque Specifications Based on Conductor Sizes
Input/Output
Conductor Size1
Torque for Slot
Width2 ≤ 0.25″
Torque for Slot
Width2 > 0.25″
Torque for
Hex Head
6-4 AWG 35 inch-pounds 45 inch-pounds 110 inch-pounds
2 AWG 40 inch-pounds 50 inch-pounds 150 inch-pounds
1 AWG n/a 50 inch-pounds 150 inch-pounds
1/0 to 2/0 AWG n/a 50 inch-pounds 180 inch-pounds
3/0 to 4/0 AWG n/a n/a 250 inch-pounds
250 CM to 350 CM n/a n/a 325 inch-pounds
1 - Given in AWG or circular mils (CM)
2 - Screwdriver blade width to match
Table 5-4. Torque Specifications Based on Socket Sizes (For All Conductor Sizes)
Socket Size3
Torque
3/16″ 120 inch-pounds
1/4″ 200 inch-pounds
5/16″ 275 inch-pounds
3/8″ 375 inch-pounds
1/2″ 500 inch-pounds
3 - Socket-head size measured across flats
∇ ∇ ∇
Troubleshooting 3PCI SCR Power Controller Series Manual
5-6 s Version 1.2 (19000325)
3PCI SCR Power Controller Series Manual Service
Version 1.2 (19000325) s 6-1
CHAPTER 6: SERVICE
In This Section:
• How to Contact sLD R...................................6-1
• Spare Parts ..................................................................6-1
• Drawing List .................................................................6-3
6.1. How to Contact sLD R
If operational problems arise which can not be resolved by review of all related procedures given in this book,
please contact the Service Department at sLD R.
Phone: (724) 339-9501
Fax: (724) 339-9507
Email: [email protected]
Our telephone answering service will accept your messages during all off-hours, including weekends. We
receive those messages at 8 am on the next normal work day. We will respond at the earliest time possible,
within your time zone and normal work day.
If you are experiencing downtime or other critical circumstances during our off-hours (see above), and wish to
telephone us, please inform our answering service operator of the nature and degree of your problem. In
such cases the operator is authorized to call sLD R Service. We cannot, however, guarantee that
service assistance will be available at any given off-hour time.
When we are reached by phone, our first step will be to give you over-the-phone assistance at no charge. If
the problem cannot be resolved by phone we will arrange for service at your site or by shipment to s
LD R, as you request. We will make every possible attempt to support your emergency, on-site needs,
regardless of how contacted.
6.2. Spare Parts
Requests for spare parts should be directed to Argo International Corporation at 212-431-2210. When
requesting spare parts, please provide the related equipment model number and serial number, the required
part name and any identifying part or vendor number(s), and your time needs. An approved purchase order
number should be given with your order.
Table 6-1 lists the minimum recommended quantities for spare parts for the 3PCI. As spares are used,
replacements should be ordered.
The listed SCR current ratings are the half-wave average value. The calculation for half-wave AVG value is
nameplate current times 0.45.
Table 6-1. Spare Parts
Amps Item Description Item # Qty
25 A Fuse, 40 A, 500 V 261277.00 3
PCB assembly, 3PCI trigger 469196.xx 1
PCB assembly, SCR module #1, *DVDT VAR* H023870 3
SCR/dual package, 92 A, 1400 V H011024 3
40 A Fuse, 60 A, 700 V 261277.25 3
PCB assembly, 3PCI trigger 469196.xx 1
PCB assembly, SCR module #1, *DVDT VAR* H023870 3
SCR/dual package, 92 A, 1400 V H011024 3
Service 3PCI SCR Power Controller Series Manual
6-2 s Version 1.2 (19000325)
Amps Item Description Item # Qty
60 A Fuse, 125 A, 700 V 261277.30 3
PCB assembly, 3PCI trigger 460T41.00 1
PCB assembly, SCR module #1, *DVDT VAR* H023870 3
SCR/dual package, 92 A, 1400 V H011024 3
90 A Fan, axial, 115 Vac, 110 CFM H018659 2
Fuse, 125 A, 700 V 261277.30 3
PCB assembly, 3PCI trigger 460T41.00 1
PCB assembly, SCR module #1, *DVDT VAR* H023870 3
SCR/dual package, 92 A, 1400 V H011024 3
120 A Fan, axial, 115 Vac, 110 CFM H018659 2
Fuse, 150 A, 700 V 261277.31 3
PCB assembly, 3PCI trigger 460T41.00 1
PCB assembly, SCR module #1, *DVDT VAR* H023870 3
SCR/dual package, 92A, 1400 V H011024 3
180 A Fan, axial, 115 Vac, 110 CFM H018659 2
Fuse, 225 A, 700 V H018813 3
PCB assembly, 3PCI trigger 460T41.00 1
PCB assembly, SCR module #2, *DVDT VAR* H023871 3
SCR/dual package, 142 A, 1400 V H017371 3
225 A Fan, axial, 115 Vac, 110 CFM H018659 2
Fuse, 300 A, 700 V 261277.34 3
PCB assembly, 3PCI trigger 460T41.00 1
PCB assembly, SCR module #2, *DVDT VAR* H023871 3
SCR/dual package, 162 A, 1400 V H019070 3
350 A Fan, axial, 115 Vac, 110 CFM H018659 3
Fuse, 450 A, 700 V H019253 3
Lug kit, single-phase 350 A, CSA certified H020477 3
PCB assembly, 3PCI trigger 460C17.xx 1
PCB assembly, *DVDT VAR* H028485 3
SCR, 298 A, 1400 V 068237 6
Varistor, 660 V H026669 3
500 A Fan, axial, 115 Vac, 110 CFM H018659 3
Fuse, 600 A, 700 V 261277.38 3
Lug kit, single-phase 500 A, CSA certified H020478 3
PCB assembly, 3PCI trigger 460C17.xx 1
PCB assembly, *DVDT VAR* H028485 3
SCR, 508 A, 1400 V H020035 6
Varistor, 660 V H026669 3
650 A Fan, axial, 115 Vac, 350 CFM 074892 3
Fuse, 800 A, 700 V 261277.40 3
Lug kit, single-phase 650 A, CSA certified H020479 3
PCB assembly, 3PCI trigger 460C17.xx 1
PCB assembly, *DVDT VAR* H028607 3
SCR, 589 A, 1400 V 261300.34 6
Varistor, 660 V H026669 3
3PCI SCR Power Controller Series Manual Service
Version 1.2 (19000325) s 6-3
Amps Item Description Item # Qty
800 A Fan, axial, 115 Vac, 350 CFM 074892 3
Fuse, 1000 A, 700 V 261277.42 3
Lug kit, single-phase .8-1.2kA, CSA certified H020760 3
PCB assembly, 3PCI trigger 460C17.xx 1
PCB assembly, *DVDT VAR* H028607 3
SCR, 719 A, 1400 V H020037 6
Varistor, 660 V H026669 3
1000 A Fan, axial, 115 Vac, 350 CFM 074892 3
Fuse, 1200 A, 700 V 261074.43 3
Lug kit, single-phase 0.8-1.2kA, CSA certified H020760 3
PCB assemblyy, 3PCI trigger 460C17.xx 1
PCB assembly, *DVDT VAR* H028607 3
SCR, 1329 A, 1400 V H020038 6
Varistor, 660 V H026669 3
1200 A Fan, axial, 115 Vac, 350 CFM 074892 3
Fuse, 1600 A, 700 V H013430 3
Lug kit, single-phase .8-1.2kA, CSA certified H020760 3
PCB assembly, 3PCI trigger 460C17.xx 1
PCB assembly, *DVDT VAR* H028607 3
SCR, 1329 A, 1400 V H020038 6
Varistor, 660 V H026669 3
Note: The .xx suffix found on some item numbers listed in the previous table corresponds to revision numbers for
customer-specific products.
6.3. Drawing List
This section contains drawings that show outline dimensions, installation wiring, and printed circuit board
component locations, as well as an overall schematic of the 3PCI. These drawings are useful in installing and
troubleshooting all 3PCI models. Table 6-2 lists the drawings in the order of their appearance.
Table 6-2. Drawing List
Drawing # Drawing Title
405816 Outline and Mounting, 3PCI: 25 A through 40 A
478113 Schematic, 3PCI: 25 A through 40 A
405492 Outline and Mounting, 3PCI: 60 A through 225 A
477882 Schematic, 3PCI: 60 A through 225 A
405498 Outline and Mounting, 3PCI: 350 A through 500 A
478096 Schematic, 3PCI: 350 through 500 A
405493 Outline and Mounting, 3PCI: 650 A
405497 Outline and Mounting, 3PCI: 800 A through 1200 A
477883 Schematic, 3PCI: 650 through 1200 A
∇ ∇ ∇
Service 3PCI SCR Power Controller Series Manual
6-4 s Version 1.2 (19000325)
3PCI SCR Power Controller Series Manual Warranty
Version 1.2 (19000325) s 7-1
CHAPTER 7: WARRANTY
In This Section:
• Guarantee and Product Liability ..................................7-1
• In-House Repair Services............................................7-1
• Field Service Repairs...................................................7-2
WARRANTY POLICY AND PRODUCT LIABILITY
This chapter details the warranty policy of sLD R products as well as product liability
information. sLD R’s standard warranty policy is listed below. Note that the warranty policy for
a particular job agreement may be different from the standard policy. When in doubt about warranty
information, consult the factory.
7.1. Guarantee and Product Liability
sLD R’s “standard” warranty policy is listed as follows. When in doubt about warranty and/or
product liability issues, consult the factory. All products are warranted for a period of two years from date
of shipment against defects in materials or workmanship. Guarantee repairs are to be performed FOB
(free on board) sLD R factory to qualify for no charges. sLD R’s liability and
customer’s exclusive remedy under this warranty are expressly limited to repair, replacement, or
repayment of the purchase price. Whether there shall be repair, replacement, or repayment is to be
exclusively sLD R’s decision. sLD R is not liable for incidental and consequential
damages.
This warranty shall not apply to major devices or equipment such as transformers not manufactured by
the seller or to equipment or parts which shall have been repaired or altered by others than the seller so
as, in its judgment, to affect adversely the same, or which shall be subject to negligence, accident, or
damage by circumstances beyond the seller’s control. For equipment and parts not manufactured by the
seller, the warranty obligations of the seller shall in all respects conform and be limited to the warranty
extended to the seller by the supplier.
7.2. In-House Repair Services
For all repair service at sLD R, you will need a Repair Service Order (SO) number. Call
(724) 339-9501 and request a Repair Service Order (SO) number. Please reference this number when
making inquiries. Use the shipping address below for returns:
sLD R
100 Sagamore Hill Rd
Pittsburgh, PA 15239
Attention: Repair Department/SO #( )
Prepay the shipment and include the following information if you are not using a sLD R Return
Repair Tag: the Repair Service Order (SO) number, part number, a description of the problem, contact
phone number, a technical contact phone number (if different) and any additional comments. Put the
Repair Service Order (SO) number on the label.
Warranty 3PCI SCR Power Controller Series Manual
7-2 s Version 1.2 (19000325)
Warranty Repairs: In addition to securing Repair Service Order (SO) number, please supply the System
CO number (found on the system, usually on the tag inside the cabinet door).
Non-Warranty Repairs: Secure a Repair Service Order (SO) number from sLD R. The price for
exchange or repair will be quoted for your purchase order when you receive the SO number. Please
include your hard copy purchase order (PO) for this amount with the item when it is returned, or fax your
PO directly to the Repair/Spares Department at (724) 339-3240. Expedited services are available upon
request.
Before sending a printed circuit board to sLD R for repair, make a list of parameter values
first, then be sure to follow proper ESD precautions when handling boards.
7.3. Field Service Repairs
Repairs may be performed at your location. Please contact sLD R at (724) 339-9501 to discuss
terms and conditions, to get the current service rates and to schedule field repairs at your location.
∇ ∇ ∇ *
3PCI SCR Power Controller Series Manual Addendum
Version 1.2 (19000325) s A-1
TITLE: Instructions for Configuring the 3PCI Gate Trigger (GTU) Units
P/N 460T2300, 460T23.10, 460T23.20, and 460T41.00
1.0 PURPOSE
The purpose of this document is to define the necessary steps to configure the above 3PCI GTU’s.
2.0 SCOPE
These instructions apply to the 460T23.00, 460T23.10, 460T23.20 and 460T41.00.
3.0 RESPONSIBILITY
It is the responsibility of the heating and regulating final test technician to follow this procedure.
4.0 DEFINITIONS
4.1 H/R Product Line
4.2 3PCI GTU – Three Phase Cosine Intercept Gate Trigger Unit
4.3 RROCT – Remote Reset Over Current Trip
References Schematic GTU - 479149.ALL 479150.ALL
Assembly GTU – 460T23.ALL, 460T41.ALL
5.0 PROCEDURE
5.1 The above GTU’s are intially tested at the PC Board testing department as a
480VAC, 3∅, 50/60Hz, Standard one second ramp, RMS Voltage Regulator.
5.1.1 Refer to the proper schematic and assembly drawings
5.2 Customer Specifications
5.2.1 The GTU configuration is selected by the Customer Service order options program.
Line Voltage is selected by Customer Specifications
The line voltage is selected by a wire connection on each of 3 transformers. The wire
must be moved to the appropriate voltage tap and soldered.
Seven jumpers are used to configure the GTU to Customer Specifications. All Jumpers are
received in the “A” position from the PWBA Vendor.
Ramp Option
S J1 – Ramp Adjustment 0.1 Second, J1 Open J2 - Pos “B”
F 1.0 Second, J1 Pos “A” J2 - Pos “A”
E 4.0 Seconds J1 Pos “B” J2 - Pos “A”
S,E J2 – Integrator Speed Pos “A”,
F Pos “B”
CR J3 – J4 (CR ) Current Regulation Gain Adj. Pos “A”, Pos “B”
VR J5 – Pos “A” (VR) Voltage Regulation J3, J4 Pos “A”
CR Pos “B” (CR ) Current Regulation J3, J4 Pos “B”
Addendum 3PCI SCR Power Controller Series Manual
A-2 s Version 1.2 (19000325)
PR Pos “C” (PR) Power Regulation J3, J4 Pos “A”
RROCT J6 – Zero ohm resistor normally installed by PCB vendor
Zero ohm resistor removed for remote reset OCT when required
J7 – Normally in Pos “A”
“Open” will give a 10 times longer ramp speed on all selected ramp speeds.
5.3 Final Test
5.3.1 Once the above steps are completed, test the 3PCI GTU with the customer SCR panel
assembly in accordance with PSI-Oxx Maxie testing procedure.
5.3.2 Add a label below the 460T41.00, 460T23.00 if the customer requires a P/N to reflect the old
number. Since any of the new PWBA’s can replace any old PWBA and are forward and
backward compatible.
Draft Authorization for Sign-off
Originator Consensus Member Consensus Member
Consensus Member Consensus Member Consensus Member
3PCI SCR Power Controller Series Manual Addendum
Version 1.2 (19000325) s A-3
The following three (3) charts document which trigger circuits we have made in the past.
Gate Trigger Circuit in a Stand-alone Frame (350-1200A)
REPLACED BY: 460T23.10 Non-UL/CSA
460T23.20 UL/CSA
Vreg CR Ext. FB
Item
No. Part Number Rev Description A B A B A B A B A B C Open Closed "A" B
1 460C17.01 A 3PCI TRIGGER CKT 208V X X X X X X X
2 460C17.02 A 3PCI TRIGGER CKT 240V X X X X X X X
3 460C17.05 A 3PCI TRIGGER CKT 480V X X X X X X X
4 460C17.05R 3PCI TRIGGER CKT 480V X X X X X X X
5 460C17.05RT 3PCI TRIGGER CKT 480V X X X X X X X
6 460C17.05T A 3PCI TRIGGER CKT 480V TESTED X X X X X X X
7 460C17.06 A 3PCI TRIGGER CKT 600V X X X X X X X
8 460C17.08 A 3PCI TRIGGER CKT 440V X X X X X X
9 460C17.11 A 3PCI TRIGGER CKT 208V ER X X X X X X X
10 460C17.12 A 3PCI TRIGGER CKT 240V 4 SEC X X X X X X X
11 460C17.13 3PCI TRIGGER CKT 380V 4 SEC X X X X X X X
12 460C17.14 3PCI TRIGGER CKT 415V 4 SEC X X X X X X X
13 460C17.15 3PCI TRIGGER CKT 480V 4 SEC X X X X X X X
14 460C17.15R 3PCI TRIGGER CKT 480V 4 SEC X X X X X X X
1 460C17.15RT 3PCI TRIGGER CKT 480V 4 SEC X X X X X X X
2 460C17.15T 3PCI TRIGGER CKT 480V 4 SEC X X X X X X X
3 460C17.22 A 3PCI TRIGGER CKT 240V FAST R X X X X X X X
4 460C17.23 A 3PCI TRIGGER CKT 415V FAST RAM X X X X X X
5 460C17.25 A 3PCI TRIGGER, 480V FAST RAMP X X X X X X
6 460C17.25R 3PCI TRIGGER, 480V FAST RAMP X X X X X X
7 460C17.25RT 3PCI TRIGGER, 480V FAST RAMP X X X X X X
8 460C17.25T 3PCI TRIGGER, TESTED, 480V, FR X X X X X X
9 460C17.36 A 3PCI TRIGGER CKT, 480V CUR REG X X X X X X X
10 460C17.37 3PCI TRIGGER CKT, 240V CUR REG X X X X X X X
11 460C17.37R 3PCI TRIGGER CKT, 240V CUR REG X X X X X X X
12 460C17.37RT 3PCI TRIGGER CKT, 240V CUR REG X X X X X X X
13 460C17.45 A 3PCI TRIGGER CKT 480V DC FB X X X X X X
14 460C17.65 A 3PCI TRIGGER CKT 480V DC FB FR X X X X X X
1 460C17.65R 3PCI TRIGGER CKT 480V DC FB FR X X X X X X
2 460C17.65RT 3PCI TRIGGER CKT 480V DC FB FR X X X X X X
3 460C17.65T 3PCI TRIG CKT, 480V, DCFB, TESTED X X X X X X
4 460C17.73
5 460C17.74
6 460C17.75
J1
Ramp Integrator
J2
Curr Reg
J3
Curr Reg
J4 10 x Ramp in "B" Position
J7 J5
J6
RR OCT
Addendum 3PCI SCR Power Controller Series Manual
A-4 s Version 1.2 (19000325)
Gate Trigger Only (350-1200A)
REPLACED BY: 460T23.00
Vreg CR Ext. FB
Item
No. Part Number Rev Description A B A B A B A B A B C Open Closed "A" B
1 460C33.01 M ASSY GTU BRD 208V STD RAMP X X X X X X X
2 460C33.02 M ASSY GTU BRD 240V STD RAMP X X X X X X X
3 460C33.04 M GTU 380/415V STD RAMP X X X X X X X
4 460C33.05 M ASSY GTU BRD 480V STD RAMP X X X X X X X
5 460C33.05R ASSY GTU BRD 480V STD RAMP X X X X X X X
6 460C33.05RT ASSY GTU BRD 480V STD RAMP X X X X X X X
7 460C33.06 M ASSY GTU BRD 600V STD RAMP X X X X X X X
8 460C33.11 M ASSY GTU BRD 208V LONG RAMP X X X X X X
9 460C33.12 M ASSY GTU BRD 240V LONG RAMP X X X X X X X
10 460C33.12T ASSY GTU BRD 240V LONG RAMP X X X X X X X
11 460C33.13 M ASSY GTU BRD 380V LONG RAMP X X X X X X X
12 460C33.14 M ASSY GTU BRD 415V LONG RAMP X X X X X X X
13 460C33.15 M ASSY GTU BRD 480V LONG RAMP X X X X X X X
14 460C33.17 M ASSY GTU BRD 240V, 5-23 SEC X X X X X X X
1 460C33.17T M TESTED, GTU BRD, 240V, 5-23 SEC X X X X X X X
2 460C33.21 M ASSY GTU BRD 208V FAST RAMP X X X X X X
3 460C33.22 M ASSY GTU BRD 240V FAST RAMP X X X X X X
4 460C33.23 M ASSY GTU BRD 380/415V FAST X X X X X X
5 460C33.23T M ASSY GTU BRD 380/415V FAST X X X X X X
6 460C33.25 M ASSY GTU BRD 480V FAST RAMP X X X X X X
7 460C33.25R ASSY GTU BRD 480V FAST RAMP X X X X X X
8 460C33.25RT ASSY GTU BRD 480V PAST RAMP X X X X X
9 460C33.25T M ASSY GTU BRD, 480V, F.R. TESTED X X X X X X
10 460C33.36 M ASSY GTU 480V V/IREG STD RAMP X X X X X X X
11 460C33.37 ASSY GTU 240V V/IREG LONG RAMP X X X X X X X
12 460C33.41 M GTU BRD 208V STD RAMP 10VDC FB X X X X X X
13 460C33.42 M GTU BRD 240V STD RAMP 10VDC FB X X X X X X X
14 460C33.44 M GTU 380/415V STD RAMP 10VDC FB X X X X X X X
1 460C33.45 M GTU BRD 480V STD RAMP 10VDC FB X X X X X X X
2 460C33.46 M GTU BRD 600V STD RAMP 10VDC FB X X X X X X X
3 460C33.51 M GTU BD 208V LONG RAMP 10VDC FB X X X X X X X
4 460C33.52 M GTU BD 240V LONG RAMP 10VDC FB X X X X X X X
5 460C33.53 M GTU BD 380V LONG RAMP 10VDC FB X X X X X X X
6 460C33.54 M GTU BD 415V LONG RAMP 10VDC FB X X X X X X X
7 460C33.55 M GTU BD 480V LONG RAMP 10VDC FB X X X X X X X
8 460C33.61 M GTU BD 208V FAST RAMP 10VDC FB X X X X X X
9 460C33.62 M GTU BD 240V FAST RAMP 10VDC FB X X X X X X
10 460C33.63 M GTU BD 415V FAST RAMP 10VDC FB X X X X X X
11 460C33.65 M GTU BD 480V FAST RAMP 10VDC FB X X X X X X
12 460C33.65T M TESTED GTU BRD 480V DCFB FAST X X X X X X
13 460C33.73 A ASSY GTU, 380/415V, 20T POT, FAST X X X X X X
14 460C33.73T A GTU, TESTED, 380/415V, 20T POT X X X X X X
1 460C33.74 A ASSY GTU BRD 240V, 20T POT, FAST X X X X X X
2 460C33.75 A ASSY GTU BRD 480V, 20T POT, FAST X X X X X X
3 460C33.X M COMMON PARTS GTU BRD (3PH) X X X X X X X
Integrator Curr Reg Curr Reg J5 RR OCT J7
J1 J2 J3 J4 J6 10 x Ramp in "B" Position
Ramp
3PCI SCR Power Controller Series Manual Addendum
Version 1.2 (19000325) s A-5
Gate Trigger Only (15-225amp)
REPLACED BY: 460T41.00
Vreg CR Ext. FB
Item
No. Part Number Rev Description A B A B A B A B A B C Open Closed "A" B
1 469196.01 U ASSY GTU BRD 208V STD RAMP X X X X X X X
2 469196.02 U ASSY GTU BRD 240V STD RAMP X X X X X X X
3 469196.02R ASSY GTU BRD 240V STD RAMP X X X X X X X
4 469196.02RT ASSY GTU BRD 240V STD RAMP X X X X X X X
5 469196.02T U ASSY GTU BRD 240V STD RAMP X X X X X X X
6 469196.03 U ASSY GTU BRD 380V STD RAMP X X X X X X X
7 469196.04 U GTU 380/415V STD RAMP X X X X X X X
8 469196.04T U GTU 380/415V STD RAMP X X X X X X X
9 469196.05 U ASSY GTU BRD 480V STD RAMP X X X X X X X
10 469196.05RT ASSY GTU BRD 480V STD RAMP X X X X X X X
11 469196.05T U TESTED GTU BRD 480V STD RAMP X X X X X X X
12 469196.06 U ASSY GTU BRD 600V STD RAMP X X X X X X X
13 469196.11 U ASSY GTU BRD 208V LONG RAMP X X X X X X X
14 469196.12 U ASSY GTU BRD 240V LONG RAMP X X X X X X X
1 469196.12R ASSY GTU BRD 240V LONG RAMP X X X X X X X
2 469196.12RT ASSY GTU BRD 240V LONG RAMP X X X X X X X
3 469196.12T ASSY GTU BRD 240V LONG RAMP X X X X X X X
4 469196.13 U ASSY GTU BRD 380V LONG RAMP X X X X X X X
5 469196.14 U ASSY GTU BRD 415V LONG RAMP X X X X X X X
6 469196.15 U ASSY GTU BRD 480V LONG RAMP X X X X X X X
7 469196.15T ASSY GTU BRD 480V LONG RAMP X X X X X X X
8 469196.16 U ASSY GTU BRD 600V LONG RAMP X X X X X X X
9 169196.17 T ASSY GTU BRD 240V, 5-23 SEC. X X X X X X X
10 469196.17T T TESTED, GTU BRD, 240V, 5-23 SEC. X X X X X X X
11 469196.21 U ASSY GTU BRD 208V FAST RAMP X X X X X X
12 469196.22 U ASSY GTU BRD 240V FAST RAMP X X X X X X
13 469196.23 U ASSY GTU BRD 380/415V FAST X X X X X X
14 469196.23T U ASSY GTU BRD 380/415V FAST X X X X X X
1 469196.25 U ASSY GTU BRD 480V FAST RAMP X X X X X X
2 469196.25R ASSY GTU BRD 480V FAST RAMP X X X X X X
3 469196.25RT ASSY GTU BRD 480V FAST RAMP X X X X X X
4 469196.25T U TESTED ASSY GTU BRD 480V FAST X X X X X X
5 469196.35 B ASSY GTU BRD 480V STD RAMP, X X X X X X X
6 469196.36 T ASSY GTU 480V V/IREG STD RAMP X X X X X X X
7 469196.41 U GTU BRD 208V STD RAMP 10VDC FB X X X X X X X
8 469196.42 U GTU BRD 240V STD RAMP 10VDC FB X X X X X X X
9 469196.43 U GTU BRD 380V STD RAMP 10VDC FB X X X X X X X
10 469196.44 U GTU 380/415V STD RAMP 10VDC FB X X X X X X X
11 469196.45 U GTU BRD 480V STD RAMP 10VDC FB X X X X X X X
12 469196.46 U GTU BRD 600V STD RAMP 10VDC FB X X X X X X X
13 469196.51 U GTU BD 208V LONG RAMP 10VDC FB X X X X X X X
14 469196.52 U GTU BD 240V LONG RAMP 10VDC FB X X X X X X X
1 469196.53 U GTU BD 380V LONG RAMP 10VDC FB X X X X X X X
2 469196.54 U GTU BD 415V LONG RAMP 10VDC FB X X X X X X X
3 469196.55 U GTU BD 480V LONG RAMP 10VDC FB X X X X X X X
4 469196.61 U GTU BD 208V FAST RAMP 10VDC FB X X X X X X
5 469196.62 U GTU BD 240V FAST RAMP 10VDC FB X X X X X X
6 469196.63 U GTU BD 415V FAST RAMP 10VDC FB X X X X X X
7 469196.65 U GTU BD 480V FAST RAMP 10VDC FB X X X X X X
8 469196.65R GTU BD 480V FAST RAMP 10VDC FB X X X X X X
9 469196.65RT GTU BD 480V FAST RAMP 10VDC FB X X X X X X
10 469196.73 A ASSY GTU, 380/415V, 20T POT, FAST X X X X X X
11 469196.73T A GTU, TESTED, 380/415V, 20T POT X X X X X X
12 469196.74 A ASSY GTU BRD 240V, 20T POT, FAST X X X X X X
13 469196.75 A ASSY GTU BRD 480V, 20T POT, FAST X X X X X X
14 469196.95 ASSY GTU BRD 480V STD RAMP X X X X X X X
1 469196.95T (TESTED) GTU BRD 480V STD RAMP X X X X X X X
2 469196.X U COMMON PARTS GTU BOARD (3PH) X X X X X X X
Integrator Curr Reg Curr Reg J5 RR OCT J7
J1 J2 J3 J4 J6 10 x Ramp in "B" Position
Ramp
∇ ∇ ∇
Addendum 3PCI SCR Power Controller Series Manual
A-6 s Version 1.2 (19000325)
3PCI SCR Power Controller Series Manual Index
i s Version 1.2 (19000325)
INDEX
Note that locator page numbers appear in regular type faces for standard index references (e.g., 7-10).
For index references that correspond to items found in tables, the locator page numbers are shown in an
italic type face (e.g., 6-24). For index references that correspond to items found in figures and
illustrations, the locator page numbers are shown in a boldface type face (e.g., 3-3). Illustrations that
appear in tables have locator page numbers that are both boldface and italic (e.g., 6-16).
—Numbers—
3PCI power controller, 1-1
50/60 Hz operation, 1-1
—A—
AC input, 2-2
air flow, 2-1
ambient temperature, 5-4
change, 1-4
range, 1-4
analog voltmeter, 3-1, 3-2
auto/manual control with a controller and
potentiometer, 3-1, 3-3
auto/manual control with controller and remote
potentiometer, 3-3
auto/manual switch, 3-3
automatic operation, 3-2
automatic restart circuitry, 1-1
—B—
bias, 1-4, 2-2, 3-1, 3-2, 4-1, 5-5
bias control, 1-2, 4-1
branch circuit overcurrent protection, 2-2
—C—
calibration, 3-2, 3-3, 3-4, 4-1
CID option, 1-5
circuit breaker, 3-1, 3-2, 3-3, 5-1
circuit protection, 1-2
conductor size, 2-2
connections
operating with an adequate load, 3-1, 5-1
contamination, 5-4
control circuit, 1-2
control methods, 1-2, 1-4, 3-1
control setting, 1-3, 5-5
control signal, 1-1, 1-3, 2-4, 3-2, 4-1, 5-1
input impedance, 1-4
isolation, 1-4
controller output, 1-3, 3-2
controlling several 3PCIs connected in parallel,
3-1, 3-4
cooling fans, 2-1
corrosion, 5-5
cosine intercept, 1-1
current, 1-5
current adjust, 2-2
current imbalance detection, 1-5
current level, 1-2, 1-3, 4-1
maintaining a constant, 1-3
current limit, 1-3, 1-4, 4-1
current limit control setting, 1-3
current ratings, 1-4, 1-5, 2-1, 2-2
current regulation, 1-3, 1-5
range, 1-3
current transformer, 1-2, 1-3, 2-2
—D—
digital firing control circuit, 1-2
dimensions, 1-2, 6-4
drawing list, 6-4
dry contact closure, 1-4
—E—
electrical hazards, 3-3, 5-1
electronic fuse, 1-2
electrostatic discharge, 2-1, 5-1, 5-4
electrostatic discharge precautions, 5-4
e-mail, 6-1
environmental issues, 5-4
ESD protection, 2-1
excessive vibration, 5-4, 5-5
extended ramp, 1-3
external control methods, 1-2
external controller signal, 3-1
external feedback, 2-3
—F—
fan cooling power, 1-4
fan wiring, 2-1
fan-cooled models, 2-1
fast-gate shutdown, 1-2
fax, 6-1
features, 1-1
feedback signal, 1-3
firing control, 5-5
firing control circuit, 1-2
frequency, 1-4
full output unaffected by control signal change,
5-1
Index 3PCI SCR Power Controller Series Manual
ii s Version 1.2 (19000325)
fused disconnect, 3-1, 3-2, 3-3, 5-1
fuses, 5-5, 5-6
manufacturers and p, 5-6
replacement, 5-6
—G—
gain control, 1-2, 1-4, 2-2, 3-1, 3-2, 4-1, 5-5
galvanic isolation, 1-4
gating, 1-2
ground, 2-3
—H—
hard-gate firing, 1-1
heat sink, 2-1, 3-3, 5-1, 5-4, 5-5
heat sink fins, 2-1
heat sink temperature, 2-1
heat sink thermostats, 2-1
high ambient temperature, 5-4
—I—
inadequate cooling, 5-4
input and output connections overview, 2-3
input impedance, 1-4, 3-1, 3-2
input isolation from ground, 1-1
input line voltage, 1-4
input lines, clearance, 2-1
input power and load connections, 5-5
input signals, 1-1, 1-4
input type, 1-5
input/output wiring, 2-1
installation, 2-1
instantaneous peak current, 1-2
insulation, 5-5
internal 3PCI connections, 2-4
internal manual control of power output, 3-1
isolated inputs, 3-2
—J—
jumper J2, 4-1
—L—
line connections, 2-1, 2-2
line current, 1-3
line frequency, 1-2, 1-4
synchronization, 1-1
line voltage, 1-1, 1-4, 3-1, 5-1
turn on, 2-1
linearity, 1-4
load, 2-2
changes, 1-3
connections, 2-1, 2-2, 5-1
operating with an adequate load, 3-1, 5-1
current, 1-2
lug kit, 1-5
—M—
maintenance, 3-1, 5-4
manual control, 1-2, 3-1, 5-5
manual pot, 3-2, 3-3
maximum power demand, 3-3, 3-4
metal oxide varistor (MOV), 1-4
model number, 1-4, 1-5, 6-1
code descriptions, 1-5
mounting hole requirements, 2-1
—N—
no output, 5-1
normally-closed contacts, 2-1
normally-open contacts, 2-1
—O—
on/off control, 3-1, 3-3
output disabled by contact closure, 3-3, 3-4
output enabled by contact closure, 3-3
open SCR fuse, 5-5
operation, 1-2, 3-1
using an adequate load, 3-1, 5-1
option CL, 1-3, 4-1
option CR, 1-3
option ER, 1-3
option OC, 1-2
options, 1-3, 1-5, 4-1
out-of-phase condition, 2-2
output, 1-1, 1-2, 1-3, 1-4, 3-1, 3-2, 3-3, 3-4, 4-1,
5-1, 5-5, 5-6
output current overloads, 1-2
output lines, clearance, 2-1
output terminals, 3-1
output voltage, 1-1, 3-1, 3-2, 5-1
change, 1-4
range, 3-2
regulation, 1-1
—P—
parallel connection of several 3PCIs, 3-4
phase-firing time base, 1-4
phase-rotation insensitivity, 2-2
phone, 6-1
PIV rating, 1-4
pot input, 1-4, 1-5
potentiometer, 1-4, 3-2, 3-3
ratings, 3-2
power control, 1-1, 1-2, 1-3
3PCI SCR Power Controller Series Manual Index
iii s Version 1.2 (19000325)
power output, 1-4
power regulation, 1-5
power SCRs protection, 1-4
preset maximum current level, 1-3
process control signal, 1-3
process controller, 1-4
protection, 1-2, 1-4, 2-1, 2-2
—R—
ramp rate, 1-5
RC snubber, 1-4
remote control with a potentiometer, 3-2
remote manual control (only) with a
potentiometer, 3-1, 3-2
remote panel, 3-2
replacement fuses, 5-6
reset push-button, 1-2, 4-1
resistive and inductive loads, 1-1
rms current, limiting, 1-3
—S—
SCR firing disturbances, 1-1
SCR network shorted, 5-5
SCR protection, 2-1
SCRs are not firing, 5-5
service, 6-1
setup, 3-1, 4-1
shutdown, 2-3
sizes for conductors, 2-2
soft-start, 1-1
source types, 3-1
spare parts, 6-1specifications, 1-3, 1-4, 2-2, 5-6,
5-7
static-free packing materials, 2-1
switching, 1-2, 3-3, 4-1
synchronization of line frequency, 1-1
—T—
technical specifications, 1-4
temperature, 5-4
temperature control calibration, 3-2
temperature controller, 1-4, 3-1, 3-2
terminal block specifications, 2-3
terminals, 1-2, 2-1, 2-2, 3-1, 3-2, 3-4, 4-1, 5-5
thermostat contact rating, 1-4
thermostats, 2-1
three-phase current limit, 1-3
three-phase current regulation, 1-3
three-phase overcurrent trip, 1-2
torque specifications, 2-2, 5-6, 5-7
transient voltage spikes (dV/dt), 1-4
trip point, 1-2
trip relay contacts, 1-2, 4-1
trip reset push-button, 1-2
troubleshooting, 5-1
symptoms and solutions, 5-5
—V—
vibration, 5-5
voltage, 1-5
input, 2-3
regulation, 1-4
—W—
weight, 1-4
wire size information, 2-2
wiring overtemperature contacts, 2-1
—Z—
zero output, 3-1, 3-2
zero power demand, 3-3, 3-4
∇ ∇ ∇
Index 3PCI SCR Power Controller Series Manual
iv s Version 1.2 (19000325)
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