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

Chapter 4 ParametersAT |Troubleshooting}| BLD-E1 Series
5-6 Revision May 2009, 00DE, V0.50
5.9 Motor cannot Run
Motor c annot run
Check if
keypad display
is normal
No No
No
No
No
No No
No
No
No
No
No
No
No
Check if non-fuse
breaker and magnetic
contactor are O N
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Set them to ON
Reset after c learing
fault and then RUN Check if there i s any
fault code di splayed
Check if input
voltage is normal
Check if any faults
occur, such as
Lv, P HL or di sconnection
Input "RUN"
command
by keypad
It can run when
no faults oc cur
Pres s RUN k ey to
check if it can run
Maybe brushless DC motor drive has malfunction or
misoperation due to noise. P lease contact DELTA.
Pres s UP key to
set frequency
Yes
Modify operation
speed
Check if input FWD
or REV c ommand
Check if the wiri ng
between MI1 and
MI2-DCM is correct
Yes
Change switch or relay
Set s peed or not
Pres s UP to
check if motor
can run
Correc t connection
Check if the parameter
setting and wiring of
analog si gnal and
multi-s tep speed
are correct
No
Motor has malfunction
No Maybe brushless DC motor drive has
malfunction. Please contac t DELTA.
Check if there i s any
output voltage from
terminals U, V and W
Check if motor
connection i s c orrect No
Connec t correctly
Check if the setting
of torque
compens ati on
is correct
Increase the setting of
torque c ompensation
Motor i s l oc ked due to large l oad, pl eas e reduce load.
For example, if there i s a brake, c hec k if it is releas ed.
If load i s too l arge
if upper bound speed
and setting freq. is
lower than the min.
output speed
Yes
Change defec tiv e
potentiometer and
relay
Yes