Rockwell Automation 6012DB PowerFlex Medium Voltage Variable Frequency Drive - Manual (Page 90)

90 Rockwell Automation Publication 6000-UM001B-EN-P - October 2014
Chapter 5 Preventative Maintenance and Component Replacement
Power Module Cabinet
Inspect, Clean, or Replace Door Mounted Air Filters
See Replace/Clean Door Mounted Air Filters on page 81 .
Inspect or Replace Top Mounted Main Cooling Fans
See Inspect Top Mounted Main Cooling Fans on page 82 .
Inspect Power Modules
1. Check for damage or degradation of the Power Modules
a. Inspect the power connections for loose connections or any evidence of
discoloration of connections from heating
b. For Drawout Power Module configurations, remove the back plates
from the Power Module Cabinet and inspect the plug-in connectors on
the back of each Power Module. Look for evidence of discoloration
from overheating.
2. Remove dust or debris from all ventilation openings on the Power Module
3. Inspect the electrolytic capacitors, located in the ventilation openings of
the Power Module.
a. Inspect for signs of discoloration, odor, or leakage.
b. Replace Power Modules if the capacitors have discoloration, odor, or
leakage.
Inspect, Clean, or Replace Door Mounted Air Filters 90
Inspect or Replace Top Mounted Main Cooling Fans 90
Inspect Power Modules 90
Replace Power Module 91
Install Drawout Power Modules 95
Replace Power Module Fuses 97
Inspect or Replace HECS 99
Inspect or Replace Door Position Limit Switch 100