106 • vacon
CONTROL KEYPAD
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
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 in the motor cable:
−
sudden heavy load increase
−
short circuit in motor cables
−
unsuitable motor
Check loading.
Check motor.
Check cables.
2
Overvoltage
The DC-link voltage has exceeded the lim-
its defined in .
−
too short a deceleration time
−
high overvoltage spikes in supply
Make the deceleration time longer. Use
brake chopper or brake resistor (avail-
able for most chassis as options)
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.
Please visit:
http://www.vacon.com/wwcontacts.html
6
Emergency
stop
Stop signal given from the option board.
7
Saturation trip
Various causes:
−
defective component
−
brake resistor short-circuit or over-
load
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, see
7.3.4.3.
Subcode in T.14:
S1 = Feedback of motor voltage
S2 = Reserved
S3 = Reserved
S4 = ASIC trip
S5 = Disturbance in VaconBus
S6 = Feedback of charging switch
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
Should the fault re-occur, contact the
distributor near to you.
Please visit: