GE VAT20 - Page 41

41
(Continued from 40)
Examining Inverter
parameters
Connect to motor and
proceed operation
Is
output current of all
phases in balance
condition?
Is there
any abnormality
indication
Detail examination is required
The inverter is out of order
YES
Carry out parameter
initialization
Designate operation
control method
Frequency instruction
setting
Does the
controller displays
frequency setting?
Is there
voltage output on
UVW terminals?
The inverter is
normal now
Replace control board
Replace control board
Is replacing
control board correct
the problem?
Yes, the problem
has been corrected
No, The problem
is not corrected
YES
NO
NO
YES
NO
NO