ABB FSO-21, User Manual

Page: 491 / 540

Fault tracing 491
Faults, warnings and events
Code
(hex)
Name Cause What to do
Faults
7A81 TUCSO fault FSO subsystem fault Contact your local ABB
representative.
7A8B FSO general fault FSO module is in the
Configuration mode.
FSO module also
generates this fault after
certain malfunctions
which the FSO module
indicates by warnings.
First the FSO module
generates a warning
indication which allows
the drive to control the
system to a safe state.
After this the drive trips. See the warning log for more
information on the actual cause.
3)
7A90 FSO stop
completed FSO module has
completed the STO, SS1
or SSE function. - 1)
7A91 FSO safe speed
limit FSO module detected an
SLS or SMS speed trip
limit violation. Check the separate code related to
SLS and SMS functions.
See section
User-selectable events
for limit hits and special events on
page 501 .
2) 3)
7A92 FSO out of eme
ramp Motor speed was not
inside the ramp window
during the SSE function. Make sure that the drive can
decelerate the load using the ramp
time (
200.102 SAR0 ramp time to
zero ).
2)
7A93 FSO ramp
coasted Drive coasted the motor
to stop instead of using
the ramp. Check that the FSO module speed
limit for stopping the ramp
deceleration is not excessive
(
FSOGEN.51 Zero speed without
encoder ).
2)
7A94 FSO out of safe
ramp Motor speed was not
inside the ramp window
during the SS1 function. Make sure that the drive can
decelerate the load using the ramp
time (
200.112 SAR1 ramp time to
zero ).
2)
7A96 FSO out of SDI SDI positive or SDI
negative exceeded the
tolerance limit to the
forbidden direction. Make sure that SDI tolerance values
are defined properly.
Check limits of the drive.For example,
see the usage of DC hold from the
drive firmware manual.
2)