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Operation
7.2 Operation (electronic version)
Storing calibration weights
1. After you have performed the scale calibration procedure, push the UP button. The MWL will
move up until the UP sensor activates, disabling the reversing contactor, bringing the motor
to a stop and engaging the brake.
While the MWL is moving, the green UP indicator will blink. Once it stops, the indicator will
remain on.
2. Turn the key switch to the OFF position.
CAUTION
The green UP indicator will turn off if the MWL has drifted down from the UP position.
Note
The signal from the UP proximity switch can be used as an alarm input to a remote PLC or
DCS.
7.2.3
Remote mode
Remote mode provides the same control functionality as local mode, however the control
functions are provided by a PLC or DCS system.
To operate the electronic version of MWL in remote mode, set the key switch to the REM
position. This energizes the remote relay coil and closes the 3 contacts required for the PLC
ENABLE signal and the UP and DOWN operation signals.
Note
In remote mode, the front panel pushbuttons, with the exception of the EMERGENCY STOP
button, are disabled.
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Milltronics MWL Weight Lifter
Operating Instructions, 11/2011, 7ML19985CR03-03
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