What to do
Cause
Event name /
Aux. code
Code
(hex)
Check motor power against drive
power.
See
Check the motor cabling.
High temperature difference between
the IGBTs of different phases.
Excess
temperature
difference
A4B1
Check cooling of drive module(s).
Check the auxiliary code (format XXXY
YYZZ). “XXX” indicates the source of
difference (0: Single module,
difference between phase IGBTs, 1:
parallelconnected modules,
minimum-maximum difference
between all IGBTs of all modules, 2:
parallel-connected modules,
minimum-maximum difference
between auxiliary power supply
boards). With parallel-connected
modules, “Y YY” specifies through
which BCU control unit channel the
highest temperature was measured.
“ZZ” specifies the phase (0: single
module, 1: U-phase [parallel
connection], 2: V-phase [parallel
connection], 3: W-phase [parallel
connection]).
Check ambient conditions.
Drive IGBT temperature is excessive.
IGBT
temperature
A4F6
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
Check the connections between the
drive control unit and the power unit.
Communication errors detected
between the drive control unit and the
power unit.
PU
communication
A580
Check the auxiliary code (format XXXY
YYZZ). With parallel-connected
modules, “Y YY” specifies the affected
BCU control unit channel (0:
broadcast). “ZZ” specifies the error
source (8: Transmission errors in PSL
link [see “XXX”], 9: Transmitter FIFO
warning limit hit). “XXX” specifies the
transmission error direction and
detailed warning code (0:
Rx/communication error, 1:
Tx/Reed-Solomon symbol error, 2:
Tx/no synchronization error, 3:
Tx/Reed-Solomon decoder failures, 4:
Tx/Manchester coding errors).
Read the PSL2 data log. In Drive
Composer pro, check the time stamp
of the A580 fault. Load the log with
the same date and time. When the file
opens, click “Show fault log”.
Check the power unit hardware.
674 Fault tracing
Содержание ACS880 Series
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