REER SR E4 IS A SAFETY INTERFACE FOR MONITORING EMERGENCY STOP BUTTONS AND SAFETY SWITCHES. THIS MODULE HAS 3 NO + 1 NC GUIDED-CONTACT SAFETY RELAYS, A START/RESTART THAT CAN BE EITHER AUTOMATIC/MANUAL, AN EDM FEEDBACK INPUT FOR EXTERNAL CONTACTORS MONITORING AND CLAMP TERMINAL BLOCKS.
THE INTERFACE HAS LEDS INDICATION FOR STATUS AND DIAGNOSTIC: POWER SUPPLY, CHANNEL 1 AND CHANNEL 2 WITH A RESPONSE TIME OF LESS THAN 20 MS.