Delta VFD110CP43B-21 User Manual

Chapter 14 Fault Codes and DescriptionsCP2000
14-38
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 level 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 Immediately reset
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.
ID* Display on LCD Keypad Fault Name Fault Descriptions
71
Watchdog（WDTT）
Watchdog error
Action and Reset
Action level Hardware detection
Action time N/A
Fault treatment parameter N/A
Reset method Hardware failure, and cannot reset. Cycle the power.
Reset condition N/A
Record Yes
Cause Corrective Actions
Hardware interference
Verify the wiring of the control circuit and wiring/grounding of the main circuit to
prevent interference.
If the WDTT fault still exists, return to the factory for repair.

Delta VFD110CP43B-21 Specifications

General

Brand	Delta
Model	VFD110CP43B-21
Category	DC Drives
Language	English