PHOENIX CONTACT 
MACX MCR-EX-SL-2NAM-T-SP 
ISOLATED AMPLIFIER SWITCH 
2924090

THE 2-CHANNEL NAMUR SIGNAL CONDITIONER

MACX MCR-EX-SL-2NAM-T(-SP) HAS BEEN DESIGNED FOR

INTRINSICALLY SAFE OPERATION OF PROXIMITY SENSORS AS WELL AS SWITCH CONTACTS, WITH OPEN CIRCUIT AND RESISTANCE CIRCUITS, INSTALLED IN HAZARDOUS AREAS.

THE INPUT CIRCUITS ARE MONITORED FOR LINE FAULTS SUCH AS WIRE

BREAKS AND SHORT CIRCUITS. LINE FAULT DETECTION (LFD) CAN BE

ACTIVATED AND DEACTIVATED. ERRORS ARE INDICATED BY A RED

FLASHING LED (AS PER NAMUR NE 44) AND THE CORRESPONDING

TRANSISTOR OUTPUT IS BLOCKED. ERROR MESSAGES CAN ALSO BE

TRANSMITTED TO THE SUPPLY AND ERROR EVALUATION MODULE VIA

THE DIN RAIL CONNECTOR.

THE OUTPUT CIRCUITS FEATURE ONE PASSIVE TRANSISTOR FOR EACH

CHANNEL FOR THE TRANSMISSION OF THE SWITCHING SIGNAL TO THE

CONTROL LEVEL. THE SWITCHES MAKE IT POSSIBLE TO SET THE

DIRECTION SEPARATELY FOR EVERY CHANNEL (OPEN OR CLOSED

CIRCUIT CURRENT BEHAVIOR). THE STATUS OF THE RESPECTIVE

CHANNEL IS SIGNALED VIA A YELLOW LED.