Chapter 14 Fault Codes and DescriptionsC2000 Plus
ID* Display on LCD Keypad Fault Name Fault Descriptions
69
Over speed rotation
feedback (SdOr)
Over speed rotation detected by sensorless
Action and Reset
Action condition Pr.10-10
Action time Pr.10-11
Fault treatment parameter
Pr.10-12
0: Warn and keep operation
1: Fault and ramp to stop
2: Fault and coast to stop
Reset method Manual reset
Reset condition Reset immediately
Record When Pr.10-12 = 1 or 2, SdOr is a “Fault”, and the fault is recorded.
Cause Corrective Actions
The setting of Pr.10-25 FOC
bandwidth of speed observer is
improper
Decrease the setting of Pr.10-25
The setting of ASR bandwidth of
speed controller is improper
Increase the bandwidth of ASR speed controller
The setting of motor parameter is
incorrect
Reset motor parameter and execute parameter tuning
Malfunction caused by
interference
Verify the wiring of the control circuit and wiring/grounding of the main circuit to
prevent interference.
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