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Technical Documents

MTB/PMT Merlin Controller For Punch Presses


The Merlin MTB & PMT Controllers are both designed to operate with the Merlin "T" Series Light Curtain Columns. The MTB Control is a free-standing 6" x 8" x 3.5" enclosure and the PMT is a panel-mount version that can be mounted in a cut-out on an existing enclosure or machine operator console. Both versions contain very reliable dual-redundant microprocessor based circuitry, including three captive-contact safety control relays. A switching power supply design allows these controllers to perform properly from 90 – 250 VAC. This advanced design allows for a quick reaction time of less than 15 milliseconds and yet is insensitive to voltage fluctuations, ambient light, smoke, oil vapors, strobe lights and weld flash. A multi-line LCD display makes this product simple to use and displays any fault conditions or operator prompting. This product is ideally suited for a wide variety of category 4 general purpose industrial point of operation guarding applications, including mechanical power presses, hydraulic presses, automated assembly machines, roll form lines, welding lines and just about any other machine that has control reliable electrics and where the hazardous motion of the machine can be stopped anywhere in the machine's cycle, when a stop signal is generated by the Merlin's Safety Output relays.


Category 4 safety system that complies with OSHA 1910.217, ANSI B11.1, ANSI B11.19, CSA Z142 and CZA Z432
3 Year Warranty on electronics
Reaction time of less than 15 milliseconds
Three field replaceable Captive contact output relays
Keyed supervised floating beam and auto-beam blankout
Multiple columns can be connected to controllers
Limit set points for maximum percentage of allowable blanked beams
Auto or manual reset
4 line LCD Message and Fault Conditions Screen
All electrical connections are plug-in through phoenix terminal blocks for easy serviceability
Interchangeable MTB Box adapter to allow for military connector hook-up of columns, or conduit fittings/ cord grip hard wiring