Delta VP3000 Series - Page 609

Chapter 8 Troubleshooting｜VP3000
600
ID No.
Fault Name
Descriptions
304
Dry pump auto-tune error
(dAUE)
1. The high-speed power tuning value is lower than the low-speed power tuning
value.
2. Any of the high speed or low speed tuning value exceeds the drive rated
power
If any of the above condition is met, the drive stops with STOP command and
displays dAUE
Action and Reset
Action Condition
Power tuning value does not meet the dry pump detection curve routine
Action Time
Immediately act
Fault Treatment Parameter
Fault and coast to stop
Reset Method
Manual reset
Reset Condition
Immediately reset
Record
Yes
Cause
Corrective Actions
The value measured automatically
by the dry pump curve is abnormal
Measure the load auto-tuning curve again, set Pr. U3-11 = 1 to execute dry pump
curve autotune.
There is water in the pump
system.
Close the pump outlet and inlet.