User`s manual

CONTROL KEYPAD 83(110)
7
7.3.4.2 Fault codes
The fault codes, their causes and correcting actions are presented in the table below. The shadowed faults
are A faults only. The items written in white on black background present faults for which you can program
different responses in the application. See parameter group Protections.
Note: When contacting distributor or factory because of a fault condition, always write down all texts and
codes on the keypad display.
Fault
code
Fault Possible cause Correcting measures
1
Overcurrent Frequency converter has detected too
high a current (>4*I
H
) in the motor cable:
− sudden heavy load increase
− short circuit in motor cables
− unsuitable motor
Subcode in T.14:
S1 = Hardware trip
S2 = Reserved
S3 = Current controller supervision
Check loading.
Check motor.
Check cables.
Make identification run.
2
Overvoltage The DC-link voltage has exceeded the
limits defined.
− too short a deceleration time
− high overvoltage spikes in supply
Subcode in T.14:
S1 = Hardware trip
S2 = Overvoltage control supervision
Make deceleration time longer. Use
brake chopper or brake resistor (avail-
able as options)
Activate overvoltage controller.
Check input voltage.
3
Earth fault Current measurement has detected that
the sum of motor phase current is not
zero.
− insulation failure in cables or motor
Check motor cables and motor.
5
Charging switch The charging switch is open, when the
START command has been given.
− faulty operation
− component failure
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
6
Emergency
stop
Stop signal has been given from the
option board.
Check emergency stop circuit.
7
Saturation trip Various causes:
− defective component
− brake resistor short-circuit or overload
Cannot be reset from the keypad.
Switch off power.
DO NOT RE-CONNECT POWER!
Contact factory.
If this fault appears simultaneously with
Fault 1, check motor cables and motor
8
System fault - component failure
- faulty operation
Note exceptional fault data record.
S1 = Reserved
S2 = Reserved
S3 = Reserved
S4 = Reserved
S5 = Reserved
S6 = Reserved
S7 = Charging switch
S8 = No power to driver card
S9 = Power unit communication (TX)
S10 = Power unit communication (Trip)
S11 = Power unit comm. (Measurement)
Reset the fault
and restart.
Should the fault re-occur, contact the
distributor near to you.