Chapter 14 Fault Codes and DescriptionsC2000 Plus
ID* Display on LCD Keypad Fault Name Fault Descriptions
70
Large deviation of
speed feedback
(SdDe)
A large deviation between the rotating speed and the
command detected by the sensorless
Action and Reset
Action condition Pr.10-13
Action time Pr.10-14
Fault treatment parameter
Pr.10-15
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.10-15 = 1 or 2, SdDe is a “Fault”, and the fault is recorded.
Cause Corrective Actions
Improper parameter setting for
abnormal rotating slip function
Reset proper setting for Pr.10-13 and Pr.10-14
Improper parameter setting for
ASR and acceleration/deceleration
Reset ASR parameters
Set proper acceleration / deceleration time
The acceleration/deceleration time
is too short
Reset proper acceleration / deceleration time
Motor shaft lock Remove the cause of motor shaft lock
The mechanical brake is not
released
Verify the system action timeline
Incorrect parameter setting for
torque limit (Pr.06-12, Pr.11-17 –
20)
Adjust the setting to proper value
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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