ABB ACS560 Quick Installation And Start-Up Manual page 128

128 Diagnostics
Code Warning/Aux
(hex) code (aux code
visible only on
assistant control
panel and drive
composer)
A490 Incorrect temper-
ature sensor
setup
A491 External temperat-
ure 1
A492 External temperat-
EN
ure 2
HI
A4A0 Control board
temperature.
A4A1 IGBT overtemper-
ature
A4A9 Cooling
A4B0 Excess temperat-
ure
A4B1 Excess temperat-
ure difference
A4F6 IGBT temperature
A580 PU communica-
tion
Cause
Sensor type mismatch
Measured temperature 1
exceeded warning limit.
Measured temperature 2
exceeded warning limit.
Control board temperature
is excessive. 1 – Sensor
fault.
Estimated drive IGBT tem-
perature is excessive.
Drive module temperature
is excessive.
Power unit module temper-
ature is excessive.
High temperature difference
between the IGBTs of differ-
ent phases.
Drive IGBT temperature is
excessive.
Communication errors
between drive control unit
and power unit.
What to do
Check the temperature setting para-
meters.
Check the parameter 35.02 Measured
temperature 1, cooling of the motor,
value of 35.13 Temperature 1 warning
limit.
Check the parameter 35.03 Measured
temperature 2, cooling of the motor,
value of 35.23 Temperature 2 warning
limit.
Check the sensor and change the
control board.
Check ambient condition, air flow and
fan operation, heatsink fins for dust
pick-up, motor power against drive
power.
Check ambient temperature, drive
module cooling air flow and fan oper-
ation, dust pick-up in the inside of
cabinet and heatsink of drive module.
Clean whenever necessary.
Check ambient conditions, air flow
and fan operation, dust pick-up in
heatsink fins, motor power against
drive power.
Check motor cabling and drive mod-
ule(s) cooling.
Check ambient conditions, air flow
and fan operation, dust pick-up in
heatsink fins and motor power against
drive power.
Check connections between drive
control unit and power unit and value
of parameter 95.04 Control board
supply.