ABB ACS800 Series Firmware Manual page 183

Fault Cause
INV OVERTEMP Converter module temperature is excessive.
(4290)
I/O COMM ERR Communication error on control board,
channel CH1
(7000)
Electromagnetic interference
02.19 FW 2 bit 06
LINE CONV Fault on line side converter
(FF51)
MOD BOARD T Overtemperature in AINT board of inverter
module.
(FF88)
MOD CHOKE T Overtemperature in choke of liquid cooled R8i
inverter module.
(FF89)
MOTOR PHASE One of motor phases is lost due to fault in
motor, motor cable, thermal relay (if used) or
(FF56)
internal fault.
02.19 FW 2 bit 15
(programmable
Fault Function
30.16)
MOTOR STALL Motor is operating in stall region due to e.g.
excessive load or insufficient motor power.
(7121)
02.19 FW 2 bit 14
(programmable
Fault Function
30.10...30.12)
What to Do
Check ambient temperature. If it exceeds
40 °C, ensure that load current does not
exceed derated load capacity of drive. See
appropriate hardware manual.
Check that ambient temperature setting is
correct (parameter 95.10).
Check converter module cooling air flow and
fan operation.
Cabinet installation: Check cabinet air inlet
filters. Change when necessary. See
appropriate hardware manual.
Modules installed in cabinet by user: Check
that cooling air circulation in cabinet has been
prevented with air baffles. See module
installation instructions.
Check inside of cabinet and heatsink of
converter module for dust pick-up. Clean when
necessary.
Reset and restart after problem is solved and
let converter module cool down.
Check connections of fibre optic cables on
channel CH1.
Check all I/O modules (if present) connected to
channel CH1.
Check for proper earthing of equipment. Check
for highly emissive components nearby.
Shift panel from motor side converter control
board to line side converter control board.
See line side converter manual for fault
description.
Check inverter fan.
Check ambient temperature.
Check inverter fan.
Check ambient temperature.
Check liquid cooling system.
Check motor and motor cable.
Check thermal relay (if used).
Check Fault Function parameters. Disable this
protection.
Check motor load and drive ratings.
Check Fault Function parameters.
171
Fault tracing