Connection to optocoupler (with external supply voltage)

For connection to inputs with large input resistances, an external supply voltage (up to 24 V) can be used with the EJ2521-0224 in order to create the necessary current.

Connection to optocoupler (with external supply voltage) 1:
EJ2521-0224, wiring with external power source
Note
EJ2521-0224 ground potential

In the case of the EJ2521-0224 module the outputs -A and -B must be connected to the GND_L_O1_O2 (pin 23) in order to avoid damage to the module (see fig. EJ2521-0224 - connection)!