430 Rockwell Automation Publication 7000L-UM301F-EN-P - March 2020
Appendix D Preventative Maintenance Schedule
Rockwell Automation PowerFlex 7000 Preventative Maintenance Schedule
Period Interval (Years) 012345 678910
Liquid-Cooling System Mesh Filters
(1)
CCCCCC CCCCC
De-ionizing Filter Cartridge
(1)
RRRRRR RRRRR
All Fittings/Connections/Hose Clamps IIIII IIIII
Redundant Cooling Pump Motors/Pumps IIIII IIIII
Redundant Cooling Pump Motor Seals IIIII IIIIR
Thermostatic Valve Element IIIII IRIII
Auxiliary Cooling
System
Door Mounted Air Filters
(1)(2)
C/RC/RC/RC/RC/RC/R C/RC/RC/RC/RC/R
Small Aux. Cooling Fans “Caravel” I I I I R I I I I R
Power Switching
Components
Power Devices (SGCTs/SCRs) IIIII IIIII
Snubber Resistors/Sharing Resistors/HECS I I I I I I I I I I
Rectifier Snubber Capacitors
(3)(4)
IIII/R
(4)
I III/R
(4)
IRv/R
(4)
Inverter Snubber Capacitors
(5)(6)
IIIII IIIIR
Integrated Gate Driver Power Supply I I I I RFB/R I I I I RFB/R
Integral Magnetics/
Power Filters
Isolation Transformer/Line Reactor I I I I M I I I I M
DC Link/CMC IIIIM IIIIM
Line/Motor Filter Capacitors IIIIMIIIIM
Control Cabinet
Components
AC/DC and DC/DC Power Supplies I I I I RFB/R I I I I RFB/R
Control Boards IIIII IIIII
Batteries (DPM) IIRII RIIRI
Battery Module (UPS)
(7)
IIIIR IIIIR
Connections Low Voltage Terminal Connections/
Plug-in Connections
IIIII IIIII
Medium Voltage Connections IIIII IIIII
Chillblock Bolted Connections IIIII IIIII
Medium Voltage Connections (Rectifier)
(3)
–––I
(3)
– ––I
(3)
–I
(3)
Medium Voltage Connections (Inverter)
(5)
––––– ––––I
Enhancements Firmware – – Rv – – Rv – – Rv –
Hardware – – Rv – – Rv – – Rv –
Operational Conditions Parameters I I Rv I I Rv I I Rv I
Variables I I RvI I RvI I RvI
Application Concerns I I Rv I I Rv I I Rv I
Spare Parts Inventory/Needs I I Rv I I Rv I I Rv I
(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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