M1020-PLS
AVG
Automation, your Programmable Limit Switch (PLS) specialist, has
now made it possible to simply obsolete
electromechanical cam/limit
switches! In spite of numerous limitations, such as cam
bounce, limited life, and high maintenance, industrial use of
electromechanical switches has continued due to their low cost. The
M1020-PLS from
AVG Automation has broken down the last barrier... the price. It offers
solid-state reliability at the cost of electromechanical cam
switches.
Principle
of Operation
The M1020-PLS consists of two parts, one being a position
transducer (resolver) mounted on the machine shaft and the other a
programmable unit mounted in the machine control panel. The
resolver produces an analog signal proportional to the shaft
position that is converted to digital format by a ratiometric
converter inside the programmable unit. This position is then
displayed on the front of the PLS panel and compared to the dwell
setpoints programmed into it. When the process cycle reaches these
setpoints, outputs are enabled or disabled, resulting in starting
or stopping desired functions during the cycle.
Programmable
Zero Offset
The M1020-PLS allows for quick initial setup, while matching
"machine zero" to "resolver zero" or
compensating for machine-wear-induced speed changes. After the
resolver is mounted on the machine shaft,
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simply
align the machine to a mechanical zero reference and enter the
required offset number to read zero.
Programmable
Limit Settings
The "ON/OFF" setpoints for each output can be programmed
simply by the touch of a key from the front panel. The AVG
Automation patented key sequence in the M1020-PLS is incredibly
simple and easy to use.
Fine-Tuning
in Motion
An additional advantage of the M1020-PLS is that you can fine-tune your limit settings while the machine is running. This
increase in machine productivity pays for the PLS within months.
Programmable
Production Rate Indicator
In the "TACH" mode, the M1020-PLS displays the machine
shaft speed in RPM. However, in this mode, a production
rate factor can be programmed to display parts manufactured
per minute.
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