ABB ACS880 ESP, Firmware Manual

Page: 425 / 494

Fault tracing 425
5090 STO hardware failure Safe torque off hardware
failure. Contact your local ABB
representative. The code contains
location information, especially
with parallel-connected inverter
modules. When converted into a
32-bit binary number, the bits of the
code indicate the following:
31…28: Number of faulty inverter
module (0…11 decimal). 1111:
STO_ACT states of control unit
and inverter modules in conflict
27: STO_ACT state of inverter
modules
26: STO_ACT state of control unit
25: STO1 of control unit
24: STO2 of control unit
23…12: STO1 of inverter modules
12…1 (Bits of non-existing
modules set to 1)
11…0: STO2 of inverter modules
12…1 (Bits of non-existing
modules set to 1)
5091 Safe torque off
Programmable fault: 31.22
STO indication run/stop
Safe torque off function is
active, i.e. safety circuit
signal(s) connected to
connector XSTO is broken
during start or run. Check safe torque off circuit
connections. For more information,
see appropriate drive hardware
manual and description of
parameter
31.22 STO indication
run/stop (page 245 ).
5092 PU logic error Power unit memory has
cleared. Contact your local ABB
representative.
5093 Rating ID mismatch The hardware of the drive
does not match the
information stored in the
memory unit. This may occur
eg. after a firmware update
or memory unit replacement. Cycle the power to the drive.
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.
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).
Code
(hex) Fault Cause What to do