TDMA CONTROL 602-702 Eng Nov.doc
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7.2.3
Power Supply (Output Unit)
The CONTROL 702 is powered by an external power supply 230 V ± 10 %
(50-60 Hz). The connections are made to the terminals L/ N/ PE (see drawing
adjacent).
7.2.4
Outputs (Output Unit)
7.2.4.1
230 V Output
The outputs 1 ..7 are respectively 230 V outputs. These outputs are connected
to terminals A1 through to A7.
7.2.4.2
Potential Free Output
The outputs 18 and 19 are potential free switching relays (max. 240 V, max.
2A), not protected. The output loads are connected to terminals U1 and U2.
The load of output 18 should be connected to the terminals of U1 (U1A, U1M,
U1B). If the output is switched, the contact U1M-U1A is closed.
The load of output 19 should be connected to the terminals of U2 (U2A, U2M,
U2B). If the output is switched, the contact U2M-U2A is closed.
Should either of these volt free outputs require a 230V supply, a link between
L and the appropriate UM terminals will provide the operating voltage for the
required output.
7.2.4.3
0 – 10 V Output
If a boiler requires a modulating input signal, connect to terminals 1 and GND.
If the boiler/store charge pump requires 0-10V or PWM signal, this is to be
connected into terminals 2 and GRD.
The digital outputs A3 – A6 are not used.
U2 (A19)
U1 (A18)
