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7 display of kpv-ce01 is abnormal, 8 phase loss (phl), 7 display of kpv-ce01 is abnormal -5 – Delta Electronics AC Motor Drive VFD-VE Series User Manual

Page 220: 8 phase loss (phl) -5

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Chapter 5 Troubleshooting|

Revision August 2008, 03VE, SW V2.04

5-5

5.7 Display of KPV-CE01 is Abnormal

Abnormal display or no display

Turn the power off and power
on again after display is off

No

Yes

Yes

Yes

No

Display normal?

AC motor drive works normally

Fix connector and

eliminate noise

Check if all connectors are connected
well and if there is no noise

AC motor drive has malfunction.

Please contact DELTA.

5.8 Phase Loss (PHL)

Phase loss

No

Yes

Check if the wiring of terminals R, S and T is OK

Connect all three
phase well

Check if the screws of terminals are tightened

No

Tighten all screws

Maybe AC motor drive has malfunction or misoperation
due to noise. Please contact DELTA.

No

Yes

Yes

Please check the wiring
and power system for

abnormal power

Check if the input voltage of R, S, T is unbalanced

Yes

Yes

Please check the wiring
and power system for

abnormal power

Check if the input voltage of R, S, T is unbalanced

No

Yes

Please check the fuse
at AC side

Check if it is 40hp and above