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5.4 Low Voltage (Lv)
Is input power corr ect? O r power cut,
including momentary power l os s
Check if there is any malfunc tion
component
or disconnection
power s upply ci rcuit
Check if voltage is
within speci fic ation
Check if there is heavy load
with high s tar t curr ent in the
same power sys tem
Check if Lv occurs when
breaker and magnetic
contactor i s O N
Check if voltage between+
and - is greater than
200VDC (for 115V/230V models)
400VDC (for 460V models)
Contr ol ci rcuit has malfunction or
misoperation due to noise. Pleas e
contact DELTA.
Revision May 2009, 00DE, V0.50
| BLD-E1 Series
Low voltage
No
in
No
Yes
No
No
Yes
Yes
Restart after r eset
Yes
Change defectiv e component
and check c onnection
Make nec essary cor rections,
No
such as c hange power supply
sy stem for r equirement
Yes
Yes
Suitable
transformer
No
Maybe br ushless DC motor dr ive has
malfunction. Please c ontact DE LTA.
No
power
capacity
Yes
5-3
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