116
Display
Cause
Where to check and how to take
actions
Reference
The output electrical wire was
grounded or short circuited.
Check the wiring of the output
electrical wire.
3.3 How to Connect
Converter
AC power supply voltage
abnormally rises.
Check the AC power supply voltage.
Control gain setting is
inappropriate.
Review the control gain.
Constant setting of the inverter
on the motor control side is
inappropriate.
Review the setting of the inverter
on the motor control side.
Display
Cause
Where to check and how to take
actions
Reference
Rated converter current is too
small.
・
Reduce load.
・
Check and review the converter
model.
A value of the overload
protection setting for overload
protection is not correct.
Check and review a setting value of
the overload protection setting:
F-00.
5.3.7 Area F
Load capacity is abnormally
large.
Use the overload pre-alarm
function: c-11.
5.3.4 Area c
Display
Cause
Where to check and how to take
actions
Reference
Current sensor failure
Replace the current sensor.
Input current flow when the
converter stops
Check the input current.
Make sure that inverter operation
enable (TB1 4I) is required to
start an inverter
Display
Cause
Where to check and how to take
actions
Reference
Insufficient DC voltage
(
√
2 times the AC power supply
voltage or lower)
Check the DC voltage.
Main circuit wiring is
incorrect.
Check the wiring.
AC power failure occurs.
Check the AC power supply voltage.
Display
Cause
Where to check and how to take
actions
Reference
Input power fails (instantaneous
power failure) during operation.
Check the input power supply.
Open phase occurred in the input
power supply.
Check the input power supply.