ABB ACS 800 Series, Firmware Manual

Page: 289 / 340

Fault tracing
289
BR OVERHEAT
(7112)
3.17 FW 5 bit 3
Brake resistor overload Let resistor cool down.
Check parameter settings of resistor overload
protection function (see parameter group
27
BRAKE CHOPPER ).
Check that braking cycle meets allowed limits.
Check that drive supply AC voltage is not
excessive.
BR WIRING
(7111)
3.17 FW 5 bit 1
Wrong connection of brake resistor Check resistor connection.
Ensure brake resistor is not damaged.
CHOKE OTEMP
(FF82) Excessive temperature of drive output filter.
Supervision is in use in step-up drives. Let drive cool down.
Check ambient temperature.
Check filter fan rotates in correct direction and
air flows freely.
COMM MODULE
(7510)
3.06 FW 2 bit 12
(programmable
Fault Function
30.18 , 30.19 )
Cyclical communication between drive and
master is lost. Check status of fieldbus communication. See
chapter
Fieldbus control , or appropriate
fieldbus adapter manual.
Check parameter settings:
- group
51 COMM MODULE DATA (for fieldbus
adapter), or
- group
52 STANDARD MODBUS (for
Standard Modbus Link).
Check Fault Function parameters.
Check cable connections.
Check if master can communicate.
CTRL B TEMP
(4110)
3.06 FW 2 bit 7
Control board temperature is above 88°C. Check ambient conditions.
Check air flow.
Check main and additional cooling fans.
CURR MEAS
(2211) Current transformer failure in output current
measurement circuit Check current transformer connections to Main
Circuit Interface Board, INT.
CUR UNBAL xx
(2330)
3.05 FW 1 bit 4 and
4.01
(programmable
Fault Function
30.17 )
Drive has detected excessive output current
unbalance in inverter unit of several parallel
connected inverter modules. This can be
caused by external fault (earth fault, motor,
motor cabling, etc.) or internal fault (damaged
inverter component). xx (1...12) refers to
inverter module number. 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.
DC HIGH RUSH
(FF80) Drive supply voltage is excessive. When
supply voltage is over 124% of unit voltage
rating (415, 500 or 690 V), motor speed rushes
to trip level (40% of nominal speed). Check supply voltage level, drive rated voltage
and allowed voltage range of drive.
FAULT CAUSE WHAT TO DO