Troubleshooting - Parker AC30P Hardware Installation Manual

8-30
Safe Torque Off

Troubleshooting

Symptom
*** TRIPPED ***
SAFE TORQUE OFF
*** TRIPPED ***
Drive won't start when
SAFE TORQUE OFF
given a start
command
Any other trip message, e.g.
Any other message
Drives starts
unexpectedly
Drive fails
comprehensive or
regular STO test
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 8-17 of this chapter.
IF ANY FAULTY OPERATION OF THE STO FUNCTION IS OBSERVED OR SUSPECTED, OPERATION OF THE INVERTER
SHOULD CEASE IMMEDIATELY AND THE UNIT SHOULD BE RETURNED TO PARKER FOR INVESTIGATION AND REPAIR.
FURTHER OPERATION OF THE INVERTER WITHOUT RESOLVING THIS FAILURE IS ENTIRELY AT THE USER'S OWN RISK.
6
Continuity through X10/05 and X10/06
7
Measure X10/01 and X10/03 relative to X10/02 or X10/04
Examine:
User
GKP display
6
output
On
Off
Off
overvoltage
Off
Don't care Don't care
Don't care Off
Don't care Don't care
FAILURE TO DO SO COULD RESULT IN INJURY, DEATH OR DAMAGE.
SEE SAFETY CATEGORY DEFINITIONS AND LIMITATIONS. REFER TO EN ISO 13849-1:2008
Probable cause
7
User inputs
Both < 15V STO is invoked.
Both > 15V and < Fault latch might have
30V tripped
Both >15V and < Drive is tripped, but
30V not due to STO.
Both >15V and <
Faulty hardware
30V
Both < 5V Faulty hardware
STO not invoked by
Both > 5V
the user.
Don't care Faulty hardware
DANGER
Remedy
When safe to do so, connect X10/01 and
X10/03 to 24V ± 10%
Remove all power from drive and re-apply. If
symptom persists, immediately return the
inverter for repair.
See the DANGER box below.
Reset the trip, and remove its cause. If
symptom persists, return the inverter for repair.
Return for repair
Immediately return the inverter for repair.
See the DANGER box below.
Use STO according to instructions elsewhere
in this chapter.
Immediately return the inverter for repair.
See the DANGER box below.
AC30 series Variable Speed Inverter