... ,560......1520mm3.Working principle The protector consists of light curtain,signal cables,controller and control cables.The light curtain can form ... closed or opened signal used safety relay,and then connects the control trip circuit of the press by control cable or other ... )Standard configuration:Emitter/1,Receiver/1,N type controller/1,Signal cable 3m/1 root, 5m/1 root ,Installation fittings/1 set ...