Relay outputs
The 2 relay outputs “Rel. 1” and “Rel. 2” can be used to output digital signals to control external components such as electrical door locks. Both relay outputs are normally open contacts (NO).
(GT7.2x00 has only one relay input, and GT7.3x00 terminals have two.)
Optocoupler inputs
Digital signals can be acquired with 1 input.
The “Opto” input is a potential-free input, i.e., a voltage and ground (GND) must be applied. The voltage or GND can be used from the terminals “VOut” on the GT7 terminal (see example).
The voltage must not exceed max. DC +30 V.