Delta 1.07 VFD-D D User Manual download pdf (Page 115)

Chapter 5 Troubleshooting |DD Series

5-10

5-9 Motor is not Running

Motor cannot run

Check if CE01

displays

normally

Check if non-fuse

breaker and magnetic

contactor are ON

Yes

Set them to ON

Reset after clearing

fault and then RUN

Check if there is any

fault code displayed

Check if input

voltage is normal

Check if any faults

occur, such as

Lv, PHL or

disconnection

Input "RUN"

command

by keypad

It can run when

no faults occur

If jumper or DC

reactor is connected

between +1 and +2/B1

Use jumper

or DC reactor

Press RUN key to

check if it can run

Maybe AC motor drive has malfunction or misoperation

due to noise. Please contact DELTA.

Press UP key to

set frequency

Yes

Modify frequency

setting

Check if input FWD

or REV command

Check if the wiring

of terminal MI1

and between

MI2-DCM is correct

Yes

Change switch or relay

Set frequency or not

Press UP to

check if motor

can run

Correct connection

Check if the parameter

setting and wiring of

analog signal and

multi-step speed

are correct

Motor has malfunction

Maybe AC motor drive has malfunction.

Please contact DELTA.

Check if there is any

output voltage from

terminals U, V and W

Check if motor

connection

is correct

Connect correctly

Check if the setting

of torque

compensation

is correct

Increase the setting of

torque compensation

Motor is locked due to large load, please reduce load.

For example, if there is a brake, check if it is released.

If load is too large

if upper bound freq.

and setting freq. is

lower than the min.

output freq.

Yes

Change defective

potentiometer and

relay

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Delta 1.07 VFD-D D User Manual Page 115

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