Robur Roburbox100, Installation And Use Manual

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ELECTRIC INSTALLER section
Ed. 06/2014 – FW version 1.002 29
2.4 ELECTRIC CONNECTIONS FOR VALVE SERVICE
Outputs
- The valve control output is composed of a free (NO/NC) diverter contact:
o
the NO contact is closed when the system requires that the position of the
valve is towards the heating side or towards the separable group;
o
the NC contact is closed when the system requires that the position of the
valve is towards the cooling side or towards the basic group;
- the output control relay is of toggle type (in case of power cut to the appliance, the
contact remains in the original position);
- the maximum applicable voltage is 250 Vac;
- the maximum applicable current is:
o
resistive loads: 4A;
o
inductive loads: 3A;
- cable maximum length is 300 metres.
Inputs
There are two digital inputs for the management of auxiliary limit switch contacts, if any.
Maximum allowable length of connection cables for inputs:
Max Resistance for On [ Ω ] Max Resistance for Off [k Ω ] Max cable length (m)
200 [ Ω ] 50 [k Ω ] 300 (m)
Digital input cable must be shielded by grounded screen on each end.