Kessel Comfort PLUS Installation And Operating Instructions Manual page 34

Potential-free contact (optional accessory)
If required, signal generators or other accessories can be connected as potential-free contacts (42 V 0.5 A). The following
terminals are available for these:
Warning (event is displayed - e.g. alarm level exceeded) -normally closed-
Fault (fatal error - e.g. in electrical connection or safety systems) -normally open-
In the event of a warning, the operating reliability of the system is usually not immediately at risk; however, the system
should be subjected to maintenance or checking by a competent person without delay. In the event of a fault, the function of
the system can be directly impaired, there is a need for direct action. Contact the service technician or emergency service.
Select accessory part (e.g. warning beacon art. No. 97715) and attach in required location. Connect to the control unit as fol-
lows:
Make the connection as shown in the connection diagram.
Lead out the cable on the right-hand underside of the control unit. Replace existing blind plugs with rubber cable glands.
4.9 Connection diagrams
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Fig. 5: 400V connection diagram (6-wire)
Installation and operating instructions 010-700_04