ACH580 Installation, Operation and Maintenance Manual
59
ACH580-01 Installation
(none)
Temperature above
warning limit
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
1
Thermistor broken
Contact an ABB service
representative for control board
replacement.
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 R1
…
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.
Code
(hex)
Warning / Aux. code
Cause
What to do
