Interfaces
8
SA3-SInstallation&CommissioningManual
5
Interfaces
5.1
Circuitvariants
There are 3 valid circuit variants for the SA3-S safety system. The following information applies to all variants:
›In case there is no door bypass in the system, the two door zone inputs are not required, they are left open. The
rest of the circuit will remain consistently. It is advisable to use in this case variant 2
›Both GND potentials (from the power supply 24V and 24V emergency power supply) can be connected together
externally.
›If the system has the auxiliary control, the safety circuit relay can be placed in the safety circuit, where it is
bypassed by the auxiliary control. Safety circuit relay can be located at any position in the safety circuit, e.g.
also in front of the door contacts.
Attention! During simultaneous use of override and auxiliary control make sure that all shaft and car doors are
closed.
