THE MINI·PLS 

The MINI-PLS, models M1250, M1450 and M1451, are the fastest and most versatile PLS family in the market. We call it Mini because of the small compact size, but it is big in performance.

In fact, MINI-PLS is three controls in one: Programmable Limit Switch, Tachometer, and Motion Detector. The powerful microprocessor and the revolutionary design make MINI-PLS an extremely compact, fast and versatile solid-state replacement of electromechanical cam switches.

The high accuracy, reliability, operating speed and convenience of operation assure greater efficiencies in manufacturing, helping to increase production and reduce cost.

Principal of Operation
The MINI-PLS consists of two parts, one being a position transducer mounted on the machine and the other a programmable unit mounted in the machine control panel. The position transducer in this case can be a resolver or an ultrasonic linear transducer, which produces a rotary or linear position

signal. This position signal is converted to digital format in the programmable unit, displayed on the front panel and compared to the dwell setpoints programmed into the PLS. When process cycle reaches these setpoints, outputs are enabled or disabled, starting or stopping desired functions during the cycle.

ABSOLUTE ENCODER 

Absolute Positioning With Programmable Scale Factor
The resolver as well as the ultrasonic linear transducer provide absolute positioning, that is, the MINI-PLS always gives TRUE position even upon machine movement after power outage. Further, a programmable scale factor up to 4,095 (resolution of 4,096 per turn) is provided to meet the required system resolution or for direct readout in engineering units. For linear transducer systems the resolution is predefined as 1,000 counts-per-inch.