ABB ACS880 - Page 579

What to doCause
Event name /
Aux. code
Code
(hex)
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 safety circuit connections. For
more information, see appropriate drive
Safe torque off function is active, ie. STO
circuit 2 is broken.
Safe torque off
2 loss
FA82
hardware manual and description of
parameter 31.22 STO indication
run/stop (page 334).
Check the auxiliary code, 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)
Contact your local ABB representative.SW internal malfunction.STO
diagnostics
failure
FA90
Memory unit
missing
FB11
• Power down the control unit.
Check that the memory unit is
properly inserted into the control
unit.
• No memory unit is attached to the
control unit.
• The memory unit attached to the
control unit is empty.
• Power down the control unit. Attach
a memory unit (with the appropriate
firmware) to the control unit.
Power down the control unit.The memory unit attached to the control
unit is incompatible.
Memory unit
incompatible
FB12
Attach a compatible memory unit.
Power down the control unit.The firmware on the attached memory
unit is incompatible with the drive.
Memory unit
FW
incompatible
FB13
Attach a memory unit with compatible
firmware.
Recycle the power to the control unit.The memory unit is empty, or contains
incompatible or corrupted firmware.
Memory unit
FW load failed
FB14
Fault tracing 579