Routine Maintenance - Emerson Unidrive M700 Installation Manual

3.13

Routine maintenance

The drive should be installed in a cool, clean, well ventilated location. Contact of moisture and dust
with the drive should be prevented. Regular checks of the following should be carried out to ensure
drive / installation reliability are maximized:
Environment
Ambient temperature Ensure the enclosure temperature remains at or below maximum specified
Dust
Moisture
Enclosure
Enclosure door filters Ensure filters are not blocked and that air is free to flow
Electrical
Screw connections
Crimp terminals
Cables
3.13.1 Fan removal procedure
Figure 3-28 Removal of the size 3 and 4 heatsink fan (size 3 shown)
1
Ensure the fan cable is disconnected from the drive prior to attempting fan removal.
1. Press the two tabs inwards to release the fan from the drive frame.
2. Using the central fan tab, withdraw the fan assembly from the drive housing.
Replace the fan by reversing the above instructions.
If the drive is surface mounted using the outer holes on the mounting bracket, then the
NOTE
heatsink fan can be replaced without removing the drive from the backplate.
Table 3-15 Heatsink fan part numbers
Model
Size 3
Size 4
44
Ensure the drive remains dust free – check that the heatsink and drive fan
are not gathering dust. The lifetime of the fan is reduced in dusty
environments.
Ensure the drive enclosure shows no signs of condensation
Ensure all screw terminals remain tight
Ensure all crimp terminals remains tight – check for any discoloration which
could indicate overheating
Check all cables for signs of damage
1
2
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Fan part number
3251-0029
3251-0245
Issue Number: 3