Delta VFD2A8MS21ANSAA

Chapter 13 Warning CodesMS300
485
ID No.
Display on LCD Keypad
Warning Name
Description
17
Over speed warning
(oSPd)
Over speed warning
Action and Reset
Action Condition
The encoder feedback speed > Pr.10-10
Action Time
Pr.10-11
Warning Setting Parameter
Pr.10-12 = 0
0: Warn and continue operation
Reset Method
“Warning” automatically clears when the drive stops
Reset Condition
“Warning” automatically clears when the drive stops
Record
N/A
Cause
Corrective Actions
Improper setting for Pr.10-25 FOC
bandwidth for speed observer
Decrease setting value for Pr.10-25.
Improper bandwidth setting for
ASR speed controller
Increase the bandwidth setting for ASR speed controller.
Incorrect motor parameter setting
Reset motor parameter and run parameter tuning.
Malfunction caused by
interference
Verify the wiring of the control circuit, and the wiring/grounding of the main
circuit to prevent interference.