6 Maintenance
78VFD700 AC Drive Getting Started Guide
6 Maintenance
6.1 Routine maintenance
After long time running in different environmental conditions, like high temperature, humidity,
dusty, vibration, etc, some internal drive parts could be degrading somehow. This can increase
the risk of drive failure or decrease drive life, so it is necessary to do routine and termly
maintenance.
Routine maintenance items are as follows:
If there is noise when motor rotates
？
If there is abnormal vibration during the motor running?
If the drive installation environment is changed?
If the drive fan is working well?
If the drive temperature is higher than normal?
Daily cleaning:
Try to keep the drive tidy;
Remove dust from drive surface; avoid dust coming into the drive, especially metal
dust;
Effectively clean the oil stuff from the fan surface.
6.2 Periodic check
Base on actual application and environment conditions, customer needs to do termly checking
to decrease the risk of drive failure or safety threats. Attention, when the drive is powered off,
the power supply must bedisconnected by an approved electrical isolation device before getting
access tothe electrical connections. Please check details as below,
Table 6-1 Termly checking
Checking Area
Items
Method
Judgment
Environment
temperature, humidity,
vibration level
Visual check and
using measurement
instrument
Must meet the
VFD700
environment
specification
If there are tools or other
stuff around the drive
Visual check
Remove them
