Common Problems And Solutions; Oco/Uco; Oc1/Uc1 - Janson Controls FC100 Series Manual

Chapter 8 Troubleshooting and Fault Informatin
CHAPTER 8 Troubleshooting and Fault Information
The FC100 AC drive has a comprehensive fault diagnostic system that includes
several different alarms and fault messages. Once a fault is detected, the
corresponding protective functions will be
displayed on the AC drive digital keypad.
read on the digital keypad display by viewing
NOTE: Faults can be cleared by a reset from the keypad or Input Terminal.

Common Problems and Solutions:

Operation
Panel
Indication

oco/uco

8

OC1/UC1

OC2/UC2
Possible fault
Name
reason
Over current
1: Inverter fault
during stop
1: Acceleration time
is too short
2: V/F curve is not
set correctly
3: Motor or motor wire
have short circuit to
the ground
Over current
4: The torque boost is
during
set too fast
5: The input voltage
acceleration
is too low
6: Directly start up
the running motor
7: The inverter
setting is not
9: The inverter fails
1: Decelerate time is
too short
Over current
2: Inverter capacity
during
is inappropriately set
deceleration
3: Whether there is
any disturbing
activated. The following faults are
The six most recent faults can be
Corrective action
Please contact your
sales representative.
1; Inc rease acceleration time
2; Correctly set V/F
3; Check the insulation of motor
and motor wire.
4:Reduce the value of
torque boost.
5: Check input voltage
6: Check the load
7; Set tracing startup
8: Enlarge capacity of
9: Sent for repairing
correct
1: Increase deceleration time
2: Enlarge inverter
3: Solve disturbing
102
FC100 Series User Manaul
curve.
inverter
capacity
resource