Unusual Heating Of Motor - Kruger Ecowatt K320 Series Operation Manual

Ecowatt Drive K320 series
®

7.6.5 Unusual heating of motor

Unusual heating of the
motor
Whether the motor
parameters are set
correctly?
Whether parameter
autotuning is
performed?
No
Whether the VFD runs at a
low speed all the time?
Whether it is a variable-
frequency motor?
Whether the load is
too heavy?
Whether the three
phases of the motor are
balanced?
Whether the carrier
frequency is too low?
Whether the motor
cable is too long?
If it is a VFD fault, contact us
No
Yes
No
Yes
Yes
No
frequency motor
Yes
Yes
No
No
Yes
Yes
No
Yes
No
-261-
Troubleshooting
Set the motor
parameters
correctly
Parameter
autotune
Use a variable-
Reduce the
load
Replace the
motor
Set the carrier
frequency
properly
Add an output
filter