132
Name
Panel
display
Troubleshooting of cause of failure
Countermeasures for fault handling
The selection of frequency inverter
is small
● In stable operation, if the operating current exceeds the rated current
of the motor or the rated output current value of the frequency inverter,
please select the frequency inverter with higher power level.
Subject to external interference
● Check the historical fault record. If the current value at the time of the
fault is far from the value of the over current point, it is necessary to
find the interference source. If there is no other interference source, it
may be the drive board or hall element.
Accelerated
over voltage
OU1
High input voltage
● Adjust the voltage to the normal range
There is an external force to drive
the electric machine to run during
acceleration
● Cancel additional power or add braking resistance
over voltage suppression setting is
not appropriate
● Confirm that the over voltage suppression function (FF - 15 ) has
been enabled;
● over voltage suppression action voltage (FF - 14 ) set value is too
large, which is recommended to be adjusted within 770 v to 700 v;
● The over voltage suppression gain (FF - 15 / 16 ) is set too small and
is recommended to be adjusted within 30 to 50;
There is no additional braking unit
and braking electrical resistance
● Add brake unit and resistance
Acceleration time is too short
● Increase the acceleration time
Deceleration
over voltage
OU2
There is an external force to drag
the motor during deceleration
● Cancel additional power or add braking resistance
over voltage suppression setting is
not appropriate
● Confirm that the over voltage suppression function (FF - 15 ) has
enabled;
● over voltage suppression action voltage (FF - 14 ) set value is too
large, which is recommended to be adjusted within 770 v to 700 v;
● The over voltage suppression gain (FF - 15 / 16 ) is set too small and
is recommended to be adjusted within 30 to 50;
There is no additional braking unit
and braking electrical resistance
● Add brake unit and resistance
Deceleration time is too short
● Increase deceleration time
Constant rate
over voltage
OU3
There is an external force to drag
the motor during deceleration
● Cancel additional power or add braking resistance
over voltage suppression setting is
not appropriate
● Confirm that the over voltage suppression function (FF - 15 ) has
enabled
● over voltage suppression operation voltage (FF - 14 ) set value is too
large, and it is recommended to adjust within 770 v ~ 700 v;
● over voltage suppression gain (FF - 15 / 16 ) set too
● Small, and it is recommended to adjust it within 30 to 50;
●
over voltage suppression maximum rise limit frequency ( ff -
18 )
● The setting is too small, it is recommended to adjust within 10 to 20;
Control power
failure
IPF
The bus voltage fluctuates up and
down at the under voltage point
● Low input voltage or low input power.
● seek technical support
