ABB ACS880 Firmware Manual page 180

180 Fault tracing
Code Fault
(hex)
5E03 XSTO circuit open
5E04 PU logic error
5E05 Rating ID mismatch
5E06 Main contactor fault
Cause
Circuit connected to
XSTO:IN1 and/or XSTO:IN2 is
open.
Power unit memory has
cleared.
The hardware of the supply
unit does not match the
information stored in the
memory unit. This may occur
eg. after a firmware update
or memory unit replacement.
Control program does not
receive main contactor on (1)
acknowledgement through dig-
ital input even control program
has closed the contactor con-
trol circuit with relay output.
Main contactor / main breaker
is not functioning properly, or
there is a loose / bad connec-
tion.
What to do
Check XSTO circuit connections.
The auxiliary code contains location
information. When converted into a
32-bit binary number, the bits of the
code indicate the following:
31...28: Number of faulty module
(0...11 decimal), 1111: STO_ACT states
of the control unit and the modules in
conflict, 27: STO_ACT state of
modules, 26: STO_ACT state of the
control unit, 25: STO1 of the control
unit, 24: STO2 of the control unit,
23...12: STO1 of modules 12...1 (bits of
non-existing modules set to 1), 11...0:
STO2 of modules 12...1 (bits of non-
existing modules set to 1).
For more information, see appropriate
hardware manual.
Cycle the power to the supply unit. If
the control unit is externally powered,
also reboot the control unit (using
parameter 196.08 Control board
or by cycling its power. If the problem
persists, contact your local ABB
representative.
Cycle the power to the supply unit.
Check the auxiliary code. The auxiliary
code categories are as follows:
1 = PU and CU ratings not the same.
Rating ID has changed.
2 = Parallel connection rating ID has
changed.
3 = PU types not the same in all power
units.
4 = Parallel connection rating ID is
active in a single power unit setup.
5 = It is not possible to implement the
selected rating with the current PUs.
6 = PU rating ID is 0.
7 = Reading PU rating ID or PU type
failed on PU connection.
8 = PU not supported (illegal rating ID).
With parallel connection faults, the
format of the auxiliary code is 0X0Y.
"Y" indicates the auxiliary code
category, "X" indicates the first faulty
PU channel in hexadecimal (1...C).
Check main contactor / main breaker
control circuit wiring.
Check the status of other switches
connected to contactor control circuit.
See the delivery-specific circuit
diagrams.
Check main contactor operating
voltage level (should be 230 V).
Check digital input DI3 connections.
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