FOR-A MBP-100PD Series Operation Manual page 13

GPI IN Circuit
GPI input behaves as below.
GPI IN pin and Ground pin are closed:
GPI IN pin and Ground pin are open:
GPI OUT Circuit
Open collector output.
When using an external power source, its voltage should be 12V or less.
The output current of each GPI OUT pin should be less than 20mA.
Circuit is active
Circuit is not active.
MBP-100SX側
MBP-100PD side
GPI IN1～3
GND
MBP-100SX側
MBP-100PD side
GPI OUT1～3
GND
13
Max：12V