Parker AC30 series, User Manual

Page: 111 / 522

Safe Torque Off
6-33
AC30 series Variable Speed Inverter
Troubleshooting
Symptom
Examine:
Probable cause Remedy
GKP display
User
output 6
User inputs 7
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 X10/01 and
X10/03 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
inverter 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 inverter 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 inverter 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 inverter for repair.
See the DANGER box below.
The table above is only a guide. It may not be a comprehensive list of all possible symptoms relating to STO. Parker will not accept responsibility for any
consequences arising from its incompleteness or inaccuracy.
Important note:
 There are no user-serviceable parts in the inverter drive. Refer to the Safety Warnings and Limitations section on page 6-18 of this chapter.
6
Continuity through X10/05 and X10/06
7
Measure X10/01 and X10/03 relative to X10/02 or X10/04