Wiring Explanation


OSSD1 and OSSD2 form a pair of safety outputs that output the same status. The OSSD is connected to the safety-related control system.
It is wired to a force guided relay, magnet contactor, or safety controller.

Safety Input

This can be connected to the OSSD of another GS/GS-M, allowing for cascading. Safety input 1 and safety input 2 form a pair of safety inputs.
When not using cascading, short-circuit to 24 V for the PNP type and to 0 V for the NPN type.

AUX Output

This is an information output used to check the operating status of the GS-M. As it is a non-safety function, this output is not used in safety-related control.
The terminal block and standard type are equipped with one AUX output for open/close link mode. The advanced function type is equipped with two AUX outputs for open/close link mode and lock link mode.

Lock Control Input

This input controls the locking function.

Lock control input
Connected to 24 V (PNP) or 0 V (NPN)
Off Unlocked

Reset/EDM Input and Interlock/EDM Selection Input

This wiring determines whether the interlock and EDM functions are used. Operation is performed according to the combinations in the following table.

Interlock function EDM function Reset/EDM input (yellow) Interlock/EDM function selection input (pink)
Automatic Not used Connected to 0 V Connected to 0 V
Automatic Used Connected to 24 V via a relay NC contact Open
Manual Not used Connected to 24 V via an NO reset switch Connected to 24 V
Manual Used Connected to 24 V via an NO reset switch and a relay NC contact Connected to 24 V

OSSD Operation Switching

The OSSD operation can be switched between lock link mode and open/close link mode via the wiring.

Advanced function type Light blue/black wire
Lock link mode Open
Open/close link mode Connected to 24 V
Terminal block/standard type Gray wire
Lock link mode Functions as AUX output
Open/close link mode Connected to 24 V (PNP) or 0 V (NPN)