Delta BLD-E1 brushless DC motor drive BLD-E1 Series User Manual download pdf (Page 153)

Chapter 4 ParametersAT |Troubleshooting}| BLD-E1 Series

5-6

Revision May 2009, 00DE, V0.50

5.9 Motor cannot Run

Motor cannot run

Check if

keypad display

is normal

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

Pr es s RUN k ey to

check if it can run

Maybe brushless DC motor drive has malfunction or

misoperation due to noise. Please contact DELTA.

Pr es s UP key to

set frequency

Yes

Modify operation

speed

Check if input FWD

or REV command

Check if the wiring

between MI1 and

MI2-DCM is correct

Yes

Change switch or relay

Set speed or not

Pr es s 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 brushless DC 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

compens ati on

is cor rect

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 i s too l ar ge

if upper bound speed

and setting freq. is

lower than the min.

output speed

Yes

Change defective

potentiometer and

relay

Yes

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Delta BLD-E1 brushless DC motor drive BLD-E1 Series User Manual Page 153

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