Rockwell Automation Publication 7000L-UM301F-EN-P - March 2020 431
Preventative Maintenance Schedule Appendix D
Rockwell Automation PowerFlex 7000 Preventative Maintenance Schedule
Period Interval (Years) 11121314151617181920
Liquid-Cooling System Mesh Filters
(1)
CCCCCCCCCC
De-ionizing Filter Cartridge
(1)
RRRRRRRRRR
All Fittings/Connections/Hose Clamps IIIIIIIIII
Redundant Cooling Pump Motors/Pumps IIIIIIIIII
Redundant Cooling Pump Motor Seals IIIIIIIIII
Thermostatic Valve Element IIIRIIIIII
Auxiliary Cooling
System
Door Mounted Air Filters
(1)(2)
C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R
Small Aux. Cooling Fans “Caravel” IIIIRIIIII
Power Switching
Components
Power Devices (SGCTs/SCRs) IRIIIIIIII
Snubber Resistors/Sharing Resistors/HECS IIIIIIIIII
Rectifier Snubber Capacitors
(3)(4)
II/R
(4)
IIII/R
(4)
II II
Inverter Snubber Capacitors
(5)(6)
IIIIIIIIII
Integrated Gate Driver Power Supply IIIIRFB/RIIIII
Integral Magnetics/
Power Filters
Isolation Transformer/Line Reactor IIIIMIIIII
DC Link/CMC IIIIMIIIII
Line/Motor Filter Capacitors IIIIMIIIII
Control Cabinet
Components
AC/DC and DC/DC Power Supplies IIIIRFB/RIIIII
Control Boards IIIIIIIIII
Batteries (DPM) IRIIRIIRII
Battery Module (UPS)
(7)
IIIIRIIIII
Connections Low Voltage Terminal Connections/
Plug-in Connections
IIIIIIIIII
Medium Voltage Connections IIIIIIIIII
Chillblock Bolted Connections IIIIIIIIII
Medium Voltage Connections (Rectifier)
(3)
–I
(3)
–––I
(3)
––––
Medium Voltage Connections (Inverter)
(5)
––––––––––
Enhancements Firmware –Rv––Rv––Rv––
Hardware –Rv––Rv––Rv––
Operational ConditionsParameters IRvIIRvIIRvI–
Variables IRvIIRvIIRvI–
Application Concerns IRvIIRvIIRvI–
Spare Parts Inventory/Needs IRvIIRvIIRvI–
(1) These components may be serviced while the VFD is running.
(2) If filter supplied is not a washable type, replace filter. If filter supplied is a washable type, wash or replace (depending on state of filter).
(3) When rectifier snubber capacitors are replaced, the MV connections for the rectifier need to be inspected.
(4) A 4-year rectifier snubber capacitor replacement interval applied only to drives with 18-pulse rectifiers shipped before 2012 (rectifier snubber capacitors are blue). However, current enhanced
replacement rectifier snubber capacitors extend this to a 10-year replacement interval (replacement rectifier snubber capacitors are black). A 10-year rectifier snubber capacitor replacement interval has
always applied to drives with AFE rectifiers.
(5) When inverter snubber capacitors are replaced, the MV connections for the inverter need to be inspected.
(6) A 10-year inverter snubber capacitor replacement interval applies to all drive configurations.
(7) Replace UPS batteries annually for 50°C rated VFDs.
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