Chapter 14 Fault CodesMH300
ID No.
Display Fault Name Description
76
STO
(STo)
Safety Torque Off function active
Action and Reset
Action condition Hardware detection
Action time Immediately act
Fault treatment parameter N/A
Reset method
Auto
When Pr.06-
44=1 and after STo error is cleared, it automatically
resets.
Manual
When Pr.06-44=0 and after STo
error is cleared, reset it
manually.
Reset condition Reset only after STo error is cleared.
Record Yes
Cause Corrective Actions
The switch action of
STO1/SCM1 and STO2/SCM2
(OPEN)
Reset the switch (ON) and cycle the power
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