5-6
Check Inverter parameters
Replace the control
board
Perform parameter
initializations
Specify operation
control mode
Does the FWD or REV
LED light flash?
Is the frequency value
displayed on the display?
Are there voltage outputs at
terminals U, V and W
Is there any fault display?
Are output
currents of each
phase even?
The inverter is OK
Perform detailed check and
consult with the supplier.
Replace the control
board
Replace the control
board
Does the control Board
function after replacement
YES
YES
YES
NO
NO
YES
NO
NO
NO
YES
YES
NO
NO
From previous page
Set up frequency command
Connect the motor to run