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3.1. Power Supply

The DFA can be operated either with a 24 V

► AC (Terminals 9 + 10)

At these terminals a 24 V

be able to provide an output of at least 10 VA. If the 24 V

24 V

output voltage available at terminal 5 (DC+) which may be connected via push-buttons to the

No other loads other than the buttons for the DFA control inputs may be connected to this avail-

able 24 V

supply.

► DC+ (Terminal 5) / DC- (Terminal 6)

If a 24 V

voltage supply is available it should be connected to these two terminals.

3.2. Control Inputs

If the DFA is being supplied by 24 V

connected via push-buttons to the + potential of this supply voltage and triggered via operating pulses.

In the case of a 24 V

of the control inputs.

► Connecting (Terminal 4)

A short operating pulse at this input results in the flange-mounted RCCB being switched on. If it is

already connected, no switching will occur.

► Disconnecting (Terminal 3)

If a short operating pulse is given at this input, the mounted RCCB will be switched off, provided it has

not already been disconnected.

Note: If a continuous signal is present at the signal inputs, e. g. because a button is sticking, then the

relevant function will be executed only once. All other functions may continue to be used.

The DFA is equipped with a relay output which signals the status of the RCCB (if blocked). It is pos-

sible to switch smaller loads via this relay contact or, in the case of bigger loads, with the aid of an

installation relay.

Three operating modes can be selected with the rotary switch on the enclosure cover:

voltage may be connected as the power supply. The supply point must

, then the control inputs (connecting, disconnecting) are to be

power supply, terminal 5 (DC+) serves as reference point for the push- buttons

or 24 V

power supply.

supply is selected, the DFA will make a