Yaskawa Large Capacity Sigma II Series - Manual (Page 158)

4 Parameter Settings and Functions
4.5.9 Handling Power Loss
4-82
Power supply
voltage
Power loss
t OFF
Time
Servo ON
Servo OFF
1. Pn509 setting > t OFF
2. Pn509 setting < t OFF
Servo ON
For 1.
For 2.