ABB ACQ580 - Page 346

342 Fault tracing
A4A1 IGBT
overtemperature
Estimated drive IGBT
temperature is excessive.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
A4A9 Cooling Drive module temperature is
excessive.
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.
A4B0 Excess temperature Power unit module
temperature is excessive.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
A4B1 Excess temperature
difference
High temperature difference
between the IGBTs of different
phases.
Check the motor cabling.
Check cooling of drive module(s).
A4F6 IGBT temperature Drive IGBT temperature is
excessive.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
A581 Fan Cooling fan feedback missing. 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.
A582 Auxiliary fan missing An auxiliary cooling fan (IP55
internal fan) is stuck or
disconnected.
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 5081
Auxiliary fan broken (page 353).
Code
(hex)
Warning / Aux. code Cause What to do