Low Voltage (Lv) - Delta HES Series Instructions For Use Manual

5-5 Low Voltage (Lv)

If there is power outage (including
If voltage of power supply
is within regulated range
Any load in the same power
supply system that has larger
If Lv occurs when the circuit
breaker and electromagnetic
It's likely hybrid servo controller breaks
down or malfunctions due to noise.
Please contact Delta for assistance.
Lv
Low voltage
momentary blackout)
No
Any broken devices or
Yes
bad connection in the
supply circuit
No
Yes
load of starting current
No
Yes
contactor are ON
No
Chapter 5 Methods of Anomaly Diagnosis
Yes
Reset and
restart
Replace broken components
and correct connection
No
Modify power supply system to
comply with the regulations
If the capacity of power supply
transformer is appropriate
5-11
HES Series
No
Yes