Delta VFD110VL43A-J User Manual

5. Fault Diagnostic Methods
5-9
5-4 Over Voltage ov
OV: Over voltage
Yes
No
Yes
No
Lower voltage of power
supply within the upper
limit
Check if voltage of
power supply is within
the regulated range
It's likely hybrid servo drive
breaks down or malfunctions
due to noise. Please contact
Delta for assistance.
If the voltage of DC BUS
exceeds the protection value in
action
Consider
implementing brake
unit
5-5 Low Voltage Lv
Low voltage
Lv
No
Yes
Yes
No
No
No
Yes
No
Yes
No
Yes
If there is power outage (including
momentary blackout)
Reset and
restart
Any broken devices or
bad connection in the
supply circuit
Replace broken components
and correct connection
Modify power supply system to
comply with the regulations
Any load in the same power
supply system that has larger
load of starting current
If Lv occurs when the circuit
breaker and electromagnetic
contactor are ON
If the capacity of power supply
transformer is appropriate
It's likely hybrid servo drive breaks down
or malfunctions due to noise. Please
contact Delta for assistance.
If voltage of power supply
is within regulated range

Delta VFD110VL43A-J Specifications

General

Brand	Delta
Model	VFD110VL43A-J
Category	Servo Drives
Language	English