ABB ACS880 - Page 547

What to doCause
Event name /
Aux. code
Code
(hex)
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)
Check safe torque off circuit connections.Safe torque off function is active, i.e.
safety circuit signal(s) connected to
Safe torque off5091
For more information, see appropriate
drive hardware manual and descriptionconnector XSTO is broken during start
or run.
of parameter 31.22 STO indication
run/stop (page 334).
Cycle the power to the drive. If the
control unit is externally powered, also
Power unit memory has cleared.PU logic error5092
reboot the control unit (using parameter
96.8 Control board boot) or by cycling its
power. If the problem persists, contact
your local ABB representative.
Cycle the power to the drive.The hardware of the drive does not
match the information stored in the
Rating ID
mismatch
5093
Check the auxiliary code (format 0X0Y).
“X” indicates the first faulty PU channel
in hexadecimal (1…C) (With a ZCU
memory unit. This may occur eg. after a
firmware update or memory unit
replacement. control unit, “X” can be 1 or 2 but this is
irrelevant to the fault).
“Y” indicates the auxiliary code category.
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).
9 = Incompatible module current rating
(unit contains a module with too low a
current rating).
A - Selected parallel rating ID not found
from database.
Fault tracing 547