Omron R88M-1M Series User Manual page 557

Timing of Return from Safe State
Servo ON/OFF
STO command at
Servo Drive
Motor power status
STO status at Servo Drive
Dynamic brake
PDS state
Brake Interlock Output
(Bkir)
The STO is also activated if a hardware failure is detected during the self diagnosis. In this case, the
STO remains active until the power is turned OFF.
Precautions for Correct Use
Design programs for the safety controller so that the STO function is not canceled automatically
even when the emergency stop switch is released.
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)
Servo OFF
Activate STO Reset STO
off
STO status
DB applied
Switched on disabled Ready to
switch on
Active
8 Safety Function
Servo ON
10 ms max.
normal status
Switched on
on
DB released
Operation
8
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