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Relay outputs
The 2 relay outputs “Rel. 1” and “Rel. 2” can be used to output digital signals to control Relay outputs (1 on GT7.2x00, 2 on GT7.3x00) for activation of external components such as electrical electronic 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.openers. The function and timing of the relays are configurable. Use a freewheeling diode and observe the maximum permissible switching voltages and currents (see technical data). The supply output Vout 1 (24 V DC) can be used to supply the external components, provided that the technical data are complied with.
Group | Terminal | Signal |
|---|---|---|
Rel. 1/2 | NO C | Normally open contact Common |
VOut 1/2 | 24V GND | Power supply for external components (DC 24 V, max 300 mA) Ground for power supply |
Optocoupler inputs
One potential free input is provided for status acquisition. The function and timing of the optocoupler are configurable. Voltage must be applied to activate the input, which can be taken from the GT7 or supplied by an external source. Observe the maximum permissible input voltages and currents (see technical data).
Group | Terminal | Signal |
|---|---|---|
Opto | IN + IN - | Status input + Status input - |