Inovance IS810N-INT Series - Disabling the STO Function

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IS810N-INT Series Servo System User Manual (Brief) Chapter 4 Wiring
4.6.2 Disabling the STO Function
When the STO function is not used, an external 24 V power supply must be connected. The
following gure shows the specic wiring method of every drive. If multiple drives provide
the STO function, the STO terminal of every drive must be connected to an external 24 V
switching-mode power supply.
Figure 4-21 Positions of STO wiring terminals
Figure 4-22 Wiring of STO terminal
External 24 V
switching power
24V
0V
24V
0V
STO1
STO1GND
STO2
STO2GND
IS810
AC 220V
The following gure shows the case where the STO terminals of multiple drives are cascaded
to share one external switching-mode power supply.
Figure 4-23 Wiring case where the STO terminals of multiple drives are
cascaded to share one 24 V power supply
STO connection terminal
External
24 V
switching
power
Second
24 V
power
supply
First
24 V
power
supply