Delta MS300 Series User Manual page 617

Chapter 14 Fault CodesMS300
ID Display on LCD Keypad
87
Action Condition
Action Time
Fault Treatment Parameter
Reset Method
Reset Condition
Record
Cause
The power module overloads
Fault Name
Power module
overload (oL3)
Action and Reset
Software detection
Immediately act
N/A
Manual reset
Immediately reset
Yes
1. Decrease the drive's load.
2. Lower the carrier frequency (Pr.00-17)
3. Lower the drive's operation ambient temperature
4. Lower the current limit
5. Choose the drive with a larger power model
6. Increase acceleration time
7. Decrease the output voltage for low-frequency operation in V/F control mode.
608
Fault Descriptions
The load almost reaches the upper limit of the power
module
Corrective Actions