ABB ACQ580 Firmware Manual page 346

342 Fault tracing
Code
Warning / Aux. code
(hex)
A4A1 IGBT
overtemperature
A4A9 Cooling
A4B0 Excess temperature
A4B1 Excess temperature
difference
A4F6 IGBT temperature
A581 Fan
A582 Auxiliary fan missing
Cause
Estimated drive IGBT
temperature is excessive.
Drive module temperature is
excessive.
Power unit module
temperature is excessive.
High temperature difference
between the IGBTs of different
phases.
Drive IGBT temperature is
excessive.
Cooling fan feedback missing.
An auxiliary cooling fan (IP55
internal fan) is stuck or
disconnected.
What to do
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
Check ambient temperature. If it
exceeds 40 °C/104 °F (IP21 frames
...
R4 R9) or if it exceeds 50 °C /122 °F
...
(IP21 frames R0 R9), ensure that
load current does not exceed derated
load capacity of drive. For all P55
frames, check the derating
temperatures. See chapter Technical
data, section Derating in the Hardware
manual of the drive.
Check drive module cooling air flow and
fan operation.
Check inside of cabinet and heatsink of
drive module for dust pick-up. Clean
whenever necessary.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
Check the motor cabling.
Check cooling of drive module(s).
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
Check the auxiliary code to identify the
fan. Code 0 denotes main fan 1. Other
codes (format XYZ): "X" specifies state
code (1: ID run, 2: normal). "Y" = 0, "Z"
specifies the index of the fan (1: Main
fan 1, 2: Main fan 2, 3: Main fan 3).
Check fan operation and connection.
Replace fan if faulty.
Check the auxiliary code.
Check the auxiliary fan and connection.
Replace faulty fan.
Make sure the front cover of the drive is
in place and tightened. If the
commissioning of the drive requires
that the cover is off, this warning will be
generated even if the corresponding
fault is defeated. See fault
Auxiliary fan broken (page 353).
5081