System pro M compact® - Piti Group

Systempro M compact ®Application sheetsDT digital time switchesOperating principleThe DT two-channel digital timeswitches enable to open and closecircuits according to a daily or weeklyprogram, controlling single loads orgroup of loads even when they requiredifferent time controls with a commontime reference.In this example, the digital time switchDT2 allows the operation of heating aswell as lighting systems of a churchwhen services are performed; when noservice is performed, the device onlycontrols the heating system.Application environmentsThe DT2 two-channel digital timeswitches are particularly indicated inenvironments and situations requiringthe management of multiple loadsaccording to a time program flexibleenough to include or exclude theirapplication based on the day of theweek (offices, schools, public areas,etc.).Example of installationAs shown in the diagrams, oneof the possible applications is tomount the DT2 two-channel digitaltime switch inside the power supplycircuit of a church, where in thedays when no service is performedonly the heating system is activated(programmed on one of the twochannels) at a preset time, whileon Sundays and when servicesare performed the lighting systemis also switched on (through aprogram on the second channel).According to the controlled systempower, the activation is performedby an ESB contactor.AUXILIARY L1 NDT2L15DT26DT211AUXILIARY/824DT2NLIGHTINGHEATINGSelection tables ............................. pag. 6/53ABB 11/13