Ametek PF3 SCR Series Instruction, Operation And Maintenance Manual
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Ametek PF3 SCR Series Instruction, Operation And Maintenance Manual

Ametek PF3 SCR Series Instruction, Operation And Maintenance Manual

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PF3 SCR Series
60-1200 Amperes
Three-phase
Phase-fired
SCR POWER CONTROLLER
Instruction, Operation and
Maintenance Manual
Number: 9100034
Revision 3
530 La keview Pl aza Blvd, Ste C
Worthington, O hio, USA 43085
To l l F r e e : 1 - 8 8 8 - P W R - C N T L ( 7 9 7 - 2 6 8 5 )
P h o n e : 6 1 4 - 3 0 8 - 5 5 0 0
F a x : 6 1 4 - 3 0 8 - 5 5 0 6
We b :
w w w. h d r p o w e r. c o m

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  • Page 1 PF3 SCR Series 60-1200 Amperes Three-phase Phase-fired SCR POWER CONTROLLER Instruction, Operation and Maintenance Manual Number: 9100034 Revision 3 530 La keview Pl aza Blvd, Ste C Worthington, O hio, USA 43085 To l l F r e e : 1 - 8 8 8 - P W R - C N T L ( 7 9 7 - 2 6 8 5 )
  • Page 2 Revision 2 July 2015 Revised Address Revision 3 Aug 2022 General Revision  2022 by Ametek HDR Power Systems. No portion of this document may be reproduced either mechanically or electronically without the prior consent of Ametek HDR Power Systems...
  • Page 3 Option CL/OC (Current Limit/Over Current Trip) Option CR/OC (Current Regulation/Over Current Trip) Option PR CHAPTER 6 - THEORY............................23 Functional Description Overview of the PF3 Digital Firing Control Circuit Pulse-Train Firing Phase-Lock Loop SPAN and ZERO Controls Voltage-Squared Feedback Rev 3 Ametek HDR Power Systems...
  • Page 4 Appendix A – System Schematic Appendix B – 60-225 A Outline Appendix C – 350-500 A Outline Appendix D – 650 A Outline Appendix E – 800-1200 A Outline Appendix F – Declaration of Conformity Ametek HDR Power Systems Rev 3...

  • Page 5: Table Of Contents

    Table 3.2 Transformer Voltage Wiring ......................10 Table 7.1 Troubleshooting Chart (Symptoms and Solutions) ..............27 Table 7.2 Torque Specifications ........................27 Table 8.1 PF3 Spare Parts List ........................30 Table 8.2 PF3 Drawing List ..........................31 Rev 3 Ametek HDR Power Systems...
  • Page 6 Table of Contents PF3 SCR Power Controller Ametek HDR Power Systems Rev 3...
  • Page 7 The SCR Power Controller makes use of components dangerous for the environment (electronic printed circuit boards, electronic components). The components removed must be taken to specialized collection and disposal centers. E151547 IEC 947-5-1 100kA SCCR Rev 3 Ametek HDR Power Systems...
  • Page 8 Safety Instructions PF3 SCR Power Controller Ametek HDR Power Systems Rev 3...

  • Page 9: Table 1.1 Pf3 Model Number Breakdown

    Extended Ramp - ER 1000 A rms - 1000 Lug Kit (>225 A) - LG 1200 A rms - 1200 Can have multiple selections NOTE: N.O. Thermostat is included in current ratings above 60 A. Rev 3 Ametek HDR Power Systems...

  • Page 10: Table 1.2 General Specifications Of Pf3 Models

    ** If you will be using temperature/process controller, specify its output; e.g., 4-20 mA, 0-10 Vdc, 2-10 Vdc, etc. with your order. NOTE: The PF3 should be tested or operated with an adequate load since an open output will have line voltage at the load connections. Ametek HDR Power Systems Rev 3...
  • Page 11 CHAPTER 2 - Options General Several options are available from Ametek HDR Power Systems, and are described below. Most options require current transformers (CTs), which are optional. On models rated from 60 through 225 amperes the CTs are mounted in the controller and on models rated from 350 amperes and higher, the CTs are shipped separately.
  • Page 12 Option LG will provide compression lugs for the 350-1200 A Power Controllers. Additional Options The options described above are the ones most commonly used. Additional options are available. For more information, contact Ametek HDR Power Systems. Ametek HDR Power Systems Rev 3...

  • Page 13: Table 3.1 Wire Size Information

    Table 1.2 for fan power requirements by model. The PF3 terminals available for the 120 Vac fan connections are shown Figure 3.1 and in the schematic in Appendix A. Optional 220 Vac fans are available. Rev 3 Ametek HDR Power Systems...

  • Page 14: Figure 3.1 Fan And Thermostat Connections

    Command Signals. Zero based Command Signals may have a small amount of non-linearity (input to output) at the low end. This should not be a problem on closed loop systems. Ametek HDR Power Systems Rev 3...

  • Page 15: Figure 3.2 Isolated/Non-Isolated Switches

    (one black, the other white and black), the primary side of T2 will contain two wires (one red the other yellow). Refer to Figure 3.3. Figure 3.3 T1, T2 Transformer Connections Rev 3 Ametek HDR Power Systems...

  • Page 16: Figure 3.4 Current Transformer Connections

    34; and Phase 3 CT connects to terminals 35 and 36. Reference Figure 3.4 and schematic in Appendix. If erratic control is noticed (power regulation only) reverse the current transformer secondary connections. Figure 3.4 Current Transformer Connections Ametek HDR Power Systems Rev 3...

  • Page 17: Figure 3.5 Typical Pf3 Line And Load Connections

    PF3 SCR Power Controller Installation INPUT LINE LOAD GROUND CONTROL Note: Unit shown with optional CT’s and CUR/PWR potentiometer. Figure 3.5 Typical PF3 Line and Load Connections Rev 3 Ametek HDR Power Systems...
  • Page 18 Installation PF3 SCR Power Controller Ametek HDR Power Systems Rev 3...

  • Page 19: Figure 4.1 Control Panel

    The PF3 is calibrated at the Factory for the specified input type and normally does NOT need adjustment. However, should a setup be required use the following methods. Refer to chapter 3.5 for the Command signal input configuration. Rev 3 Ametek HDR Power Systems...

  • Page 20: Figure 4.2 Process Controller Input Connections

    With the power to the PF3 turned off, connect the potentiometer as shown in Figure 4.3. The CW position is the full power output position. Terminal TB1-5 is internally connected to a positive dc voltage source. Ametek HDR Power Systems Rev 3...

  • Page 21: Figure 4.3 Remote Control With A Potentiometer

    Figure 4.4 and remove jumper from terminal TB1-7 and TB1-8. Install the AUTO/MAN switch in the same general location as the remote manual potentiometer. Note that the full CW position of the potentiometer is the full-power-output position. Rev 3 Ametek HDR Power Systems...

  • Page 22: Figure 4.4 Auto/Man Control With Controller And Remote Potentiometer

    Calibrate the system by performing the steps in 4.3. 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. Ametek HDR Power Systems Rev 3...

  • Page 23: Figure 4.6 Shutdown Control

    LED lights, the red LED and relay are disabled and the status of the green LEDs is indeterminate. Selecting an appropriate percentage of load unbalance using the DIP switches is the only setting most users will ever need to make and might best be illustrated by the following example. Rev 3 Ametek HDR Power Systems...

  • Page 24: Figure 4.7 Unbalance Alarm Board

    Each LED is labeled on the board. The relay output is on terminals 58 (N.O.), 59 (Common) and 60 (N.C.) as shown in figure 4.7. The relay is energized on alarm. Figure 4.7 Unbalance Alarm Board Ametek HDR Power Systems Rev 3...

  • Page 25: Figure 4.8 Shorted Scr Alarm Board

    Typically the SCR Shorted Alarm board is a piggy-back board on the Unbalance Alarm and does not require any calibration. The Shorted SCR Alarm can be used with or without the Unbalance Alarm Figure 4.8 Shorted SCR Alarm Board Rev 3 Ametek HDR Power Systems...

  • Page 26: Figure 4.9 Unbalance Block Diagram

    Operation PF3 SCR Power Controller Figure 4.9 Unbalance Block Diagram Ametek HDR Power Systems Rev 3...

  • Page 27: Figure 5.1 Current Limit/Trip Board

    Increase the input control signal to demand full output Adjust the CURRENT LIMIT (CUR/PWR) potentiometer until maximum current level is reached. g. With the power controller at full output, adjust the TRIP LEVEL potentiometer CCW until the unit shuts off. Rev 3 Ametek HDR Power Systems...
  • Page 28 Set the input control signal to demand full output. e. Adjust the PR (CUR/PWR) potentiometer until the maximum power level is reached. Adjust the CL potentiometer CCW until the maximum current starts to reduce. Ametek HDR Power Systems Rev 3...

  • Page 29: Figure 6.1 Ac Switch And Scr On-Time

    For each cycle of input there is one cycle of oscillator output. By this Rev 3 Ametek HDR Power Systems...
  • Page 30 This protection is necessary to prevent large surge currents associated with transformers and similar loads when power is first applied to them. The circuit comes into play during startup or after a power interruption of several cycles’ duration. Ametek HDR Power Systems Rev 3...
  • Page 31 Ametek HDR Power Systems emphasizes customer satisfaction by maintaining a rapid-response and cooperative customer-service. If operational difficulties occur, Ametek HDR Power Systems 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 in Chapter 8.
  • Page 32 If it is above 122 ºF (50 ºC), steps should be taken to provide more cooling, or the PF3 should be moved to a cooler location, or call the Ametek HDR Power Systems service department. Excessive Vibration. A significant degree of pitched or unpitched vibration can cause numerous problems.

  • Page 33: Table 7.1 Troubleshooting Chart (Symptoms And Solutions)

    X1. On the Rx1 scale, the resistance should be infinite in both directions. If a shorted component is indicated in any of these cases, replace it. (2b) Firing control Return the power to the unit. If the problem persists, contact Ametek HDR section defective Power Systems service.
  • Page 34 Troubleshooting PF3 SCR Power Controller Ametek HDR Power Systems Rev 3...
  • Page 35 Answering Service operator of the nature and degree of your problem. In such cases the operator is authorized to call Ametek HDR Power Systems Service. We cannot, however, guarantee that service assistance will be available at any given off-hour time.

  • Page 36: Table 8.1 Pf3 Spare Parts List

    Fan, axial, 115 Vac, 100 CFM 4520001 Fuse, 630 A, 700 V 7500124 Lug Kit, 2/3 Phase 500 A 2710209 PCB Assy, PF3 Extended Gate 2099157 SCR, 800 A, 1400 V 5080114 PCB Assy, DVDT 2071000 Ametek HDR Power Systems Rev 3...

  • Page 37: Table 8.2 Pf3 Drawing List

    Outline & Mounting, PF3 – 60 - 225 A M2710038 Outline & Mounting, PF3 – 350 A, 500 A M2710042 Outline & Mounting, PF3 – 650 A M2710044 Outline & Mounting, PF3 – 800, 1000, 1200 A M2710045 Rev 3 Ametek HDR Power Systems...
  • Page 38 Service PF3 SCR Power Controller Ametek HDR Power Systems Rev 3...
  • Page 39 AMETEK HDR warrants that the equipment delivered will be free from defects in workmanship and material for a period of five years from the date of shipment. AMETEK HDR will repair or replace, at AMETEK HDR's option, any part found defective during proper and normal use, provided that written notice of the nature of the defect is received by AMETEK HDR within the five year warranty period and that the customer returns the part to AMETEK HDR freight paid both ways.
  • Page 40 PF3 SCR Power Controller Field Service Repairs Repairs may be performed at your location. Please contact Ametek HDR Power Systems at (614) 308-5500 to discuss terms and conditions, to get the current service rates and to schedule field repairs at your location.
  • Page 41 PF3 SCR Power Controller Appendix APPENDIX Appendix A – System Schematic Rev 3 Ametek HDR Power Systems...
  • Page 42 Appendix PF3 SCR Power Controller Appendix B – 60-225 A Outline Ametek HDR Power Systems Rev 3...
  • Page 43 PF3 SCR Power Controller Appendix Appendix C – 350-500 A Outline Rev 3 Ametek HDR Power Systems...
  • Page 44 Appendix PF3 SCR Power Controller Appendix D – 650 A Outline Ametek HDR Power Systems Rev 3...
  • Page 45 PF3 SCR Power Controller Appendix Appendix E – 800-1200 A Outline Rev 3 Ametek HDR Power Systems...
  • Page 46 PF3 SCR Power Controller Appendix F – Declaration of Conformity EC DECLARATION OF CONFORMITY AMETEK HDR POWER SYSTEMS 503 Lakeview Plaza Blvd, Ste C Worthington, Ohio, 43085 - USA Declare under our sole responsibility that the products listed below and bearing the CE label:...
  • Page 47 Notes:...
  • Page 48 503 Lakeview Plaza Blvd, Ste C Worthington, Ohio, 43085 USA...

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