Delta VP3000 Series - Page 555

Chapter 8 Troubleshooting｜VP3000
546
ID No.
Fault Name
Descriptions
76
Safe torque off
(STO)
Safety Torque Off function activates
Action and Reset
Action Condition
Hardware detection
Action Time
Immediately act
Fault Treatment Parameter
Pr. H0-11
0: STO Fault
1: Fault at Run; Warning at Stop
2: STO Warning
3: No STO Display at Stop
Reset Method
Pr. H0-14 = 0, manually reset.
Pr. H0-14 = 1, auto reset
Reset Condition
Channel 1 and Channel 2 return to no action level
Record
Yes
Cause
Corrective Actions
The switch action of STO1/SCM1
and STO2/SCM2 (OPEN)
Check whether the wiring and upper unit function output is correct.