60 • vacon
ASFIFF12 High Speed
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
7. 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
drive limit. See User manual.
- Too short a deceleration time
- high overvoltage spikes in supply
Subcode in
T.14:
S1 = Hardware trip
S2 = Overvoltage control supervision
- Make the deceleration time longer.
- Use brake chopper or brake resistor
(available as options)
- Activate over voltage 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 your
local distributor.
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 your local distributor.
- 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
Subcode in
T.14:
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 your
local distributor.