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ROUTINE INSPECTION AND MAINTENANCE
The unit should be inspected and cleaned at least annually or more frequently if it is located in an
excessively warm or dusty environment.
Power terminals: Inspect for loose connections and tighten to specifications in Table 6.
Capacitors: Check for leakage or deformation.
Overall: Perform a visual inspection checking for things such as discolored wires or terminals,
evidence of arcing, loose mounting screws, physical damage to the enclosure, etc.
Fans and heatsinks: Excessive dust buildup on the heatsink and cooling fan impellers may lead to
overheating. Lightly brush and vacuum clean.
Instructions for fan replacement: Contact Customer Service for assistance in replacing the cooling
fan in the event it should fail. Use only fans approved by Phase Technologies. Unapproved fans may
not be able to move enough air to properly cool the unit, leading to component damage.
Fuses: There are several field replaceable fuses in the drive. Each fuse is assigned a designator to
help identify the fuse. Replacement fuses are available from the factory by contacting Customer
Service at 605-343-7934. Refer to the table below for fuse ratings.
Table 23 - Fuses
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