Overvoltage; Undervoltage - IMO HD2 IP Series Instruction Manual

HD2 IP55 High-ingress Protection Series

7.6.3 Overvoltage

Check the load and adjust

7.6.4 Undervoltage

Overvoltage fault
Whether the voltage of the power
supply is within the standard range?
Yes
Whether UVW on the output
side of the inverter is short
to ground?
Whether the wiring on the
output side of the inverter is
performed properly?
Yes
Whether the ACC/DEC
time is too short?
No
Yes
Whether the loaded motor
is drived reversely?
No
If it is a inverter fault,
contact our company
Undervoltage fault
Whether the voltage of the
power supply is within the
standard range?
No
Whether the air switch and
contactor are opened or
encounter exceptions?
No
Whether a large-power device
is running on the grid that pulls
down the voltage of the grid?
No
Whether the
inverter is powered
off during running?
No
If it is a inverter fault,
contact our
company
No
Ensure the power supply
meets the requirement
Yes Rectify the short-circuit
fault and perform the
wiring properly
Yes
Whether the DEC time can
be prolonged?
No
Whether to use a
brake accessory?
No
Adjust the brake
accessories and
resistance
Yes
Ensure the power supply
meet the requirement
Close the air switch and
Yes
contactor; and rectify the
exceptions
Yes
Adjust the input of the
grid
Identify the power-off
Yes
causes, and rectify the
exceptions
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Troubleshooting
Yes
Prolong the DEC time
Yes
Add brake accessories