Rockwell Automation Allen-Bradley PowerFlex 750 Series User Manual
Scr bus supply
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Summary of Contents for Rockwell Automation Allen-Bradley PowerFlex 750 Series
- Page 1 PowerFlex SCR Bus Supply Firmware Version 1.xxx User Manual Original Instructions...
- Page 2 If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.
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Page 3: Table Of Contents
Essential Requirements for CE Compliance ....... 27 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 4 Index ........... . 51 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 5: Preface
DC bus systems. Rockwell Automation recognizes that some of the terms that are currently used in our industry and in this publication are not in alignment with the movement toward inclusive language in technology. -
Page 6: Additional Resources
PowerFlex 700S with Phase II Control Programming Manual (All Frame Sizes) 20D-PM006 PowerFlex 700S with Phase II Control Reference Manual PFLEX-RM003 PowerFlex 750-Series Drive Installation Instructions 750-IN001 PowerFlex 750- PowerFlex 750-Series Drive Programming Manual 750-PM001 Series AC Drive PowerFlex 750-Series Reference Manual 750-RM002 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 7: General Precautions
Failure to do so may result in personal injury and/or equipment damage. Catalog Number Position Number Explanation 1…3 5…7 Product Code Type PowerFlex SCR Bus Supply Voltage Rating Code Input Voltage Phase DC Output 400/480V AC 540…650V DC 600/690V AC 675…930V DC Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 8 Configuration Code Type Stand Alone Master (1000 A only) Slave (1000 A only) IMPORTANT PowerFlex SCR Bus Supply 1000 A units with Master or Slave configuration are available for 400/480 and 600/690 Volts. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 9: Descriptions And Schematic Diagrams
Enable Contactor (K1) for the precharge board. Cooling Blower connected to a customer-supplied 115V AC Power Supply. The customer’s controls must, at a minimum, command the blower to run whenever contactor K1 is enabled. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 10 Cooling Blower connected to a customer-supplied 115V AC Power Supply. The customer’s controls must, at a minimum, command the blower to run whenever contactor K1 is enabled. NOTE: There is no DC output fuse protection in the 1000 A SCR unit. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
- Page 11 Cooling Blower connected to a customer-supplied 115V AC Power Supply. The customer’s controls must, at a minimum, command the blower to run whenever contactor K1 is enabled. NOTE: There is no DC output fuse protection in the 1000 A SCR unit. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
- Page 12 Connection Cable (1 m) connects the gate firing pulses from the Master to the first Slave or between any two Slaves (maximum 4). NOTE: There is no DC output fuse protection in the 1000 A SCR Unit. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 13: Installation/Wiring
ATTENTION: The following information is merely a guide for proper installation. Rockwell Automation, Inc. cannot assume responsibility for the compliance or the noncompliance to any code, national, local or otherwise for the proper installation of this product or associated equipment. -
Page 14: Ambient Operating Temperatures
A minimum 3% rated three-phase AC line reactor must be installed for minimum voltage drop unless the closest supply transformer is matched to the kVA rating of the PowerFlex SCR Bus Supply. For recommended line reactors, see Line Reactors on page A-7. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 15: Unbalanced Or Non-Solid Grounded Distribution Systems
Using an external RFI filter may result in relatively high ground leakage currents. Therefore, the filter must only be used in installations with grounded AC supply systems and be permanently installed and solidly grounded (bonded) to the building power distribution Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 16: Minimum Capacitance
1000 A unit has six in-path fuses which simultaneously protect AC and DC paths. All units are equipped with fuse trip indicator switches. For a list of recommended replacement fuses, see these pages. SCR Bus Supply See Page… 400 A 600 A 1000 A Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 17: Power Wiring
This will help minimize the possible shock hazard from “cross coupled” motor leads. DC Bus Wiring Guidelines For DC Bus wiring guidelines, see AC Drives in Common Bus Configurations, publication DRIVES-AT002. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 18: Power Connection Bus Bars And Terminals
Size per NEC or local code torque to 6 N•m (54 lb•in) Control Terminal Block Table 6 (1) Input/output power bus bar connections require the use of either lug type connectors to terminate field-installed conductors or bus bars. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 19 Size per NEC or local code to 15 N•m (133 lb•in) Control Terminal Block Table 6 (1) Input/output power bus bar connections require the use of either lug type connectors to terminate field-installed conductors or bus bars. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 20: Control Wiring
Wire Size Range Item Name Torque Maximum Minimum 0.8 N•m 2.5 mm 0.25 mm Control Terminals (7 lb•in) (14 AWG) (22 AWG) (1) Maximum/minimum sizes that the terminals will accept - these are not recommendations. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 21: Drive Run Interlock
Overtemperature - terminals 10 and 11) should be wired to either the AC line input contactor for the Bus Supply or the Run interlock circuit (enable input) of each connected drive. This ensures that the drives are stopped in case of Bus Supply Overtemperature. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 22: Control Wiring Example
DC bus capacitance is greater than the values shown in the following table. To operate the SCR Bus Supply with a slow ramp-up, set the SPARE 2 jumper to the left (SLOW) position. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 23: Disconnecting Movs
(1) It is highly recommended to accurately determine the power source type and then configure appropriately. (2) When MOVs are disconnected, the power system must have its own transient protection to ensure known and controlled voltages. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 24: Parallel Connection Of Slave Units
Because of numerous internal changes (components, cables, and hardware) the following conversions are not allowed: • Standalone to master • Standalone to slave • Slave to standalone • Slave to master NOTE: See Figure 29 on page 47 for circuit board location. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 25: Converting Master Unit To Standalone Unit
0.2 seconds, while the slower ramp time will take approximately 1.3 seconds. This will help to limit the inrush current in the system. For additional recommendations about SCR Bus Supply redundancy, contact Rockwell Automation Technical Support. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 26: Scr Bus Supply 12-Pulse Configuration
EN 61800-5-1 Adjustable speed electrical power drive systems –Part 5-1: Safety requirements – Electrical, thermal and energy. EMC Directive • EN61800-3 Adjustable speed electrical power drive systems Part 3: EMC product standard including specific test methods. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 27: Harmonic Emissions
Currently there are no mandatory harmonic emission limits related to CE compliance for equipment connected to private power networks. Upon request, Rockwell Automation can provide information regarding harmonic emissions from the SCR Bus Supply. - Page 28 Chapter 1 Installation/Wiring Notes: Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 29: Start-Up
Source 1 and Source 2: Source 1 Source 2 Checkmark Below if No Short Exists DC+ Bus DC+ Bus DC+ Bus DC- Bus DC- Bus DC- Bus DC+ Bus DC- Bus DC+ Bus DC Bus Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 30: Precharge Board Led Indicators
Follow safety-related practices of NFPA 70E, Electrical Safety For Employee Workplaces. DO NOT work alone on energized equipment! Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 31 Power must be cycled to clear the fault. Figure 18 - Flashing Pattern for ALARM and FAULT LEDs Pause 0.9 sec. sec. sec. Example: Flashing pattern for ALARM LED showing a Low Phase alarm (where n = 3 flashes) Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 32: Troubleshooting
1. Verify that maximum ambient temperature is not N.C. contact on Open heat sink control terminals 10 exceeded. Overtemperature Switch and 11 is open 2. Replace the Overtemperature Switch. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 33: Powerflex Scr Bus Supply
Up to 6000 volts peak per IEEE C62.41-1991 Max. Short Circuit Current Rating: 85 kA Cooling Forced ventilation cooled by tangential blower below heat sink 200VA Blower Power Consumption: Cooling Air: 600 m /hr. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 34 Maximum Capacitance for Connection to the This is the total DC Bus capacitance sum of the permitted drives to connect. Capacitance DC Bus Supply Minimum Capacitance on page 16 Jumper Settings on page Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 35: Bus Supply Dimensions
30 kg (66 lb.) 600 A 740 (29.1) 490 (19.3) 785 (30.9) 276 (10.9) 104.5 (4.1) 43 kg (95 lb.) 1000 A 740 (29.1) 490 (19.3) 785 (30.9) 276 (10.9) 104.5 (4.1) 67 kg (147 lb.) Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 36 Figure 21 - 600 A Unit Bus Bar Customer Connection Point Dimensions/Locations (3.94) (9.6) (7.5) (1.57) 40 (1.57) (2.56) (2.56) (2.7) (5.8) (1.97) (9.6) Dimensions are in millimeters and (inches). (12) Front View Side View Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 37: Accessories
120…173 120…176 3R160-C up to 203 151…203 155…203 161…203 166…203 169…203 174…203 177…203 3R160-B 3R160-A — — — 204…206 204…209 204…219 204…224 3R200-C 204…255 204…255 204…255 204…255 207…255 210…255 220…255 225…255 3R200-B 3R200-A Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 38 3R850-A (1) The inductance value of the supply transformers includes 2.5 µH for 10 m feeder cable. (2) The number in the catalog string represents the fundamental AC current rating of the reactor. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
- Page 39 320…407 361…407 381…407 — — — — 3RB320-A — — — — — 408…465 408…509 3RB400-C 408…509 — — 408…414 408…450 408…509 466…509 — 3RB400-B — 408…500 415…509 451…509 — — — 3RB400-A Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 40: Hf Filter
The HF filter is connected in front of the AC line reactor between the three AC line input phases and the protection earth conductor PE (Figure 23). Figure 23 - HF Filter Wiring Diagram Filter … Bus Supply Bus Supply Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 41: Solid Ground Systems
In this type of installation, the PE grounding plate should NOT be connected to ground, but remain isolated from ground. IMPORTANT The HF filter PE grounding plate will be floating with potential high voltage with respect to earth ground when AC line power is applied. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... -
Page 42: Spare Parts
HRG ground system. Spare Parts 400 A SCR Bus Supply IMPORTANT SCR Bus Supplies are NOT designed to be field repaired, but can be field maintained. Figure 26 - 400 A Unit Spare Part Locations Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 43 (precharge, gate, and snubber), and precharge relay are available. Additional catalog numbers are provided for troubleshooting and technical support information only. (2) Extensive disassembly is required to replace the fan assembly. Please consider using Rockwell Automation Remanufacturing Services.
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Page 44: Scr Bus Supply
600 A SCR Set SK-20S-MCC312-18IO1 SK-D9-FAN2 Fan Assembly — 400 A and 600 A MOV Assembly SK-20S-VBKSDK041 SK-20S-F070B040S or 40 A Fuse (Precharge fuses F6…F8) Westcode Type F070B040S or Ferraz Shawmut Type 6.921CPgRC14.51 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 45 (precharge, gate, and snubber), and precharge relay are available. Additional catalog numbers are provided for troubleshooting and technical support information only. (2) Extensive disassembly is required to replace the fan assembly. Please consider using Rockwell Automation Remanufacturing Services.
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Page 46: 1000 A Scr Bus Supply
40 A Fuse (Precharge fuses F7…F11) Ferraz Shawmut Type 6.921CPgRC14.51 SK-20S-069UR2S1000B or 1000 A, 700V Fuse (AC fuses F1…F6) Westcode Type 069UR2S1000B or Torque to 25 N•m (221 lb•in). Ferraz Shawmut Type 6.9URD32TTF1000 Fuse Monitoring Switch SK-20S-MS3V1-5 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 47 (precharge, gate, and snubber), and precharge relay are available. Additional catalog numbers are provided for troubleshooting and technical support information only. (2) Extensive disassembly is required to replace the fan assembly. Please consider using Rockwell Automation Remanufacturing Services.
- Page 48 Appendix A Specifications Notes: Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 49: Um001H-En-P, October 2023
Added Atmosphere specification to the Environmental section. Added Surrounding Environment specification to the Environment section. Revised 400 A, 600 A, and 1000 A Bus Supply spare part drawings and related tables. Added index to User Manual. Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 50 Appendix B History of Changes Notes: Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
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Page 51: Index
(1000 A only) ESD, static discharge 7 PE ground 15 power wiring 17 powering up bus supply 29 filter precautions, general 7 HF 40 RFI 15 firmware release 5 related documentation 6 removing cover 13 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024... - Page 52 42 specifications 33 start-up checklist 29 static discharge, ESD 7 status indicators 30 supply source for AC 14 system grounding 15 troubleshooting 32 unbalanced/non-grounded supply 15 wiring control 20 power 17 Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
- Page 53 PowerFlex SCR Bus Supply User Manual Rockwell Automation Publication 20S-UM001I-EN-P - February 2024...
- Page 54 At the end of life, this equipment should be collected separately from any unsorted municipal waste. Rockwell Automation maintains current product environmental compliance information on its website at rok.auto/pec. Allen-Bradley, expanding human possibility, PowerFlex, and Rockwell Automation are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.
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