Digital Display Is Abnormal - Delta Electronics VFD-DD Series User Manual

Chapter 5 Troubleshooting |DD Series
5-7 Digital Keypad Display is Abnormal
Abnormal display or no display
Turn the power off and power
on again after display is off
Display normal?
AC motor drive works normally
Yes
No
Yes
Fix connector and
No
Check if all connectors are connected
well and if there is no noise
Yes
AC motor drive has malfunction.
Please contact DELTA.
5-8
eliminate noise