Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive (A Frame) - ForGe Control - Manual (Page 174)

174 Rockwell Automation Publication 7000A-UM200C-EN-P - June 2014
Appendix C Preventative Maintenance Schedule
Interval Period (in years) 11 12 13 14 15 16 17 18 19 20
Commissioning Activities
Air-Cooling
System
n
Door Mounted Air Filters ou C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R
Main Cooling Fan Motor I I I RFB/R I I I I I I
Redundant Cooling Fan Motor (if supplied) I I I RFB/R I I I I I I
Small Aux. Cooling Fans “Caravel” I I I I R I I I I R
Liquid-Cooling
System
p
Mesh Filters u C C C C C C C C C C
De-ionizing Filter Cartridge u R R R R R R R R R R
All Fittings/Connections/Hose Clamps I I I I I I I I I I
Redundant Cooling Pump Motors/Pumps I I I I I I I I I I
Redundant Cooling Pump Motor Seals I I I I I I I I I R
Thermostatic Valve Element I I I R I I I I I I
Power Switching
Components
Power Devices (SGCTs/SCRs) I R I I I I I I I I
Snubber Resistors/Sharing Resistors/HECS I I I I I I I I I I
Rectifier Snubber Capacitors I I q I I I I q I I I Rv/R q
Inverter Snubber Capacitors I I I I I I I I I R
Integrated Gate Driver Power Supply I I I I RFB/R I I I I RFB/R
Self-Powered SGCT Power Supply (SPS) 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/Common Mode Choke I I I I M I I I I M
Line/Motor Filter Capacitors I I I I M I I I I M
Control Cabinet
Components
AC/DC and DC/DC Power Supplies I I I I RFB/R I I I I RFB/R
Control Boards I I I I I I I I I I
Batteries (DCBs and CIB) I R I I R I I R I I
Battery Module (UPS) r I I I I R I I I I R
Connections
Low Voltage Terminal Connections/
Plug-in Connections
I I I I I I I I I I
Medium Voltage Connections I I I I I I I I I I
Heatsink Bolted Connections I I I I I I I I I I
Medium Voltage Connections (Rectifier) s – I q – – – I q – – – I q
Medium Voltage Connections (Inverter) t – – – – – – – – – I
Enhancements
Firmware – Rv – – Rv – – Rv – –
Hardware – Rv – – Rv – – Rv – –
Operational
Conditions
Parameters I Rv I I Rv I I Rv I I
Variables I Rv I I Rv I I Rv I I
Application Concerns I Rv I I Rv I I Rv I I
Spare Parts Inventory/Needs I Rv i I Rv I I Rv I I
n Only applies to air-cooled VFDs (i.e. ‘A’ Frame and ‘B’ Frame)
o 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).
p Only applies to liquid-cooled VFDs (i.e. ‘C’ Frame)
q A 4 year replacement interval applied to all 6-pulse and 18-pulse rectifier versions with previously available rectifier snubber capacitors. Snubber capacitors now
available extend the replacement period of “B” and “C” frames to 10 years (replacement period for “A” Frames remain at 4 years) – contact Cambridge for details and
to purchase extended life snubber capacitors. Active Front End rectifiers have a 10 year rectifier snubber capacitor replacement interval.
r Replace UPS battery module yearly for 50°C rated VFDs.
s When rectifier snubber capacitors are replaced, the MV connections for rectifier need to be inspected.
t When inverter snubber capacitors are replaced, the MV connections for inverter need to be inspected.
u These components may be serviced while the VFD is running.