Delta BLD-E1 brushless DC motor drive BLD-E1 Series User Manual download pdf (Page 154)

| BLD-E1 Series

Revision May 2009, 00DE, V0.50 5-7

5.10 Motor Speed cannot be Changed

Motor can run but

cannot change speed

Yes

Check if the setting of the

max. speed is too low

Check to see if speed is

out of range (upper/lower)

boundaries

Modify the setting

Yes

Press UP/DOWN key

to see if speed has

any change

If there is any change

of the s ignal that sets

frequency (0-10V and

4-20mA)

Check if the wiring between

MI1~MI6 to DCM is correct

Correc t

wir ing

Check if speed for

each step is different

Check if the wiring of

external terminal is correct

Change speed setting

Check if accel./decel.

time is set correctly

Please set suitable

accel./decel. time by

load inertia

Maybe brushless DC motor drive has malfunction or

misoperation due to noise. Please contact DELTA.

Change defective

potentiometer

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Delta BLD-E1 brushless DC motor drive BLD-E1 Series User Manual Page 154