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8 USING STO FUNCTION [G] [A]
8.2 STO I/O signal connector (CN8) and pin assignment
8.2
STO I/O signal connector (CN8) and pin
assignment
Pin assignment
The pin assignment of the connector is as viewed from the cable connector wiring section.
Signal (device) explanations
I/O device
Signal
name
Connector pin
No.
Description
I/O
division
STOCOM
CN8-3
Common terminal for the STO1 and STO2 input signals
DI-1
STO1
CN8-4
Input the STO status of STO1.
STO state (base circuit shut-off): Open between STO1 and STOCOM.
STO release state (in driving): Close between STO1 and STOCOM.
Before turning off STO1, be sure to stop the servo motor in the servo-off state or with forced stop deceleration
by turning off EM2 (Forced stop 2).
DI-1
STO2
CN8-5
Input the STO status of STO2.
STO state (base circuit shut-off): Open between STO2 and STOCOM.
STO release state (in driving): Close between STO2 and STOCOM.
Before turning off STO2, be sure to stop the servo motor in the servo-off state or with forced stop deceleration
by turning off EM2 (Forced stop 2).
DI-1
TOFCOM
CN8-8
Common terminal for the TOFB1 and TOFB2 output signals
DO-1
TOFB1
CN8-6
Outputs the STO status of STO1.
STO state (base circuit shut-off): Closed between TOFB1 and TOFCOM.
STO release state (in driving): Open between TOFB1 and TOFCOM.
DO-1
TOFB2
CN8-7
Outputs the STO status of STO2.
STO state (base circuit shut-off): Closed between TOFB2 and TOFCOM.
STO release state (in driving): Open between TOFB2 and TOFCOM.
DO-1
CN8
TOFB2
STO2
TOFB1
STO1
STOCOM
2
1
4
3
6
5
8
7
TOFCOM
Servo amplifier
STO I/O signal connector
