ABB ACS800 Firmware Manual page 289

FAULT CAUSE
BR OVERHEAT Brake resistor overload
(7112)
3.17 FW 5 bit 3
BR WIRING Wrong connection of brake resistor
(7111)
3.17 FW 5 bit 1
CHOKE OTEMP Excessive temperature of drive output filter.
Supervision is in use in step-up drives.
(FF82)
COMM MODULE Cyclical communication between drive and
master is lost.
(7510)
3.06 FW 2 bit 12
(programmable
Fault Function
30.18, 30.19)
CTRL B TEMP Control board temperature is above 88°C.
(4110)
3.06 FW 2 bit 7
CURR MEAS Current transformer failure in output current
measurement circuit
(2211)
CUR UNBAL xx Drive has detected excessive output current
unbalance in inverter unit of several parallel
(2330)
connected inverter modules. This can be
3.05 FW 1 bit 4 and
caused by external fault (earth fault, motor,
4.01
motor cabling, etc.) or internal fault (damaged
(programmable
inverter component). xx (1...12) refers to
Fault Function
inverter module number.
30.17)
DC HIGH RUSH Drive supply voltage is excessive. When
supply voltage is over 124% of unit voltage
(FF80)
rating (415, 500 or 690 V), motor speed rushes
to trip level (40% of nominal speed).
WHAT TO DO
Let resistor cool down.
Check parameter settings of resistor overload
protection function (see parameter group
BRAKE CHOPPER).
Check that braking cycle meets allowed limits.
Check that drive supply AC voltage is not
excessive.
Check resistor connection.
Ensure brake resistor is not damaged.
Let drive cool down.
Check ambient temperature.
Check filter fan rotates in correct direction and
air flows freely.
Check status of fieldbus communication. See
chapter Fieldbus control, or appropriate
fieldbus adapter manual.
Check parameter settings:
- group 51 COMM MODULE DATA
adapter), or
- group 52 STANDARD MODBUS
Standard Modbus Link).
Check Fault Function parameters.
Check cable connections.
Check if master can communicate.
Check ambient conditions.
Check air flow.
Check main and additional cooling fans.
Check current transformer connections to Main
Circuit Interface Board, INT.
Check there are no power factor correction
capacitors or surge absorbers in motor cable.
Check that there is no earth fault in motor or
motor cables:
- measure insulation resistances of motor and
motor cable.
If no earth fault can be detected, contact your
local ABB representative.
Check supply voltage level, drive rated voltage
and allowed voltage range of drive.
289
27
(for fieldbus
(for
Fault tracing