NPN-compatible wiring

The accessory converts the level indicator's output configuration into a 3-wire NPN-compatible interface (Active Low), simplifying direct integration with the digital input modules of industrial PLCs. 

Thanks to a factory-installed electrical jumper between the 0V DC ground line and the common terminal of the SPDT electromechanical contact, the level indicator provides a 0V DC output signal when the detected material level is reached (default NO configuration). 

Key advantages:

• PLC Compatibility: native 0V DC output signal (Active Low), ideal for standard interfacing with industrial automation systems.

Wiring specifications:

• Required power supply: 24V DC (direct current)
• Output type: 3-wire NPN, Active Low (0V DC when the signal is active)
• Default logic: NO (Normally Open) / reversible to NC (Normally Closed)
• User terminals: +24V DC (power supply), 0V / GND (return), OUT (0V DC signal to PLC)