und Installationsanleitung (pdf) - dz-schliesstechnik gmbh

2.6 Systems with indirect (central) release (special function I)If indirect (central) release of all doors is required in a system with several emergency exits using only a singleemergency switch actuation, the control unit model 720-32 must be used. This control unit is equipped with a safetyrelay circuit through whose contacts current is applied to the relevant locking element. The positively driven contactsof the three safety relays which make up the circuit are linked in such a way that in case of a fault, for examplewelded contacts or a spring breakage, re-activation of the locked status is prevented.In this case, the power supply to the safety relay for all the doors is routed via an emergency button model 725 NAM-01 with bipolar cut-out in case of emergency.Up to a maximum of 20 doors can be switched using an emergency cut-out module 725-NAM-01.Overall current consumption of the safety relay circuit per control unit 720-32:appr. 110 mA74