Delta MH300 Series - Page 731

Chapter 14 Fault CodesMH300
14-4
Improper parameter settings for
the speed tracking function
(including restart after
momentary power loss and
restart after fault)
Correct the parameter settings for speed tracking.
1. Start the speed tracking function.
2. Adjust the maximum current for Pr.07-09 speed tracking.
Incorrect
combination of control
mode and used motor
Check the settings for Pr.00-11 control mode:
1. For IM motor, Pr.00-11 = 0, 1, 2, 3, 5
2. For PM motor, Pr.00-11 = 4, 6, 7
The length of motor cable is
too
long.
Increase the AC motor drive’s capacity.
Install AC reactor(s) on the output side (U/V/W).
Hardware failure
The
ocA occurs due to short circuit or ground fault at the output side of
the drive.
Check for possible short circuits between terminals with the
electric
meter:
B1 corresponds to U, V, W; DC- corresponds to U, V, W;
corresponds
to U, V, W.
If short circuits occur, return to the factory for repair.
Check if the setting for stall
prevention is correct.
Set the stall prevention to the proper value.