Parker ac890 - Troubleshooting

6-40 Safe Torque Off
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Troubleshooting
Symptom
Examine:
Probable cause Remedy
6901 MMI display
User
output
4
User inputs
5
Drive won’t
start when given
a start command
*** TRIPPED ***
SAFE TORQUE OFF
On Both < 15V STO is invoked.
When safe to do so, connect X11/01
and X11/03 to 24V ± 10%
*** TRIPPED ***
SAFE TORQUE OFF
Off
Both >15V and
< 30V
Fault latch might
have tripped
Remove all power from drive and re-
apply. If symptom persists,
immediately return the 890 for repair.
See the DANGER box below.
Any other trip
message, e.g.
overvoltage
Off
Both >15V and
< 30V
Drive is tripped,
but not due to
STO.
Reset the trip, and remove its cause.
If symptom persists, return the 890
for repair.
Any other message Off
Both >15V and
< 30V
Faulty hardware Return for repair
Drives starts
unexpectedly
Don’t care Don’t care Both < 5V Faulty hardware
Immediately return the 890 for repair.
See the DANGER box below.
Don’t care Off Both > 5V
STO not invoked
by the user.
Use STO according to instructions
elsewhere in this chapter.
Drive fails
comprehensive
or regular STO
test
Don’t care Don’t care Don’t care Faulty hardware
Immediately return the 890 for repair.
See the DANGER box below.
The above table is only a guide. It may not be a comprehensive list of all possible symptoms relating to STO. Parker SSD
Drives will not accept responsibility for any consequences arising from its incompleteness or inaccuracy.
4
Continuity through X11/05 and X11/06
5
Measure X11/01 and X11/03 relative to X11/02 or X11/04