CONTREX MLP-Trim - Manual (Page 97)

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LOGIC CONTROL
This section addresses the four digital inputs and two digital outputs that control the
MLP–Trim's and connected drive's operating state.
The four digital inputs are F–Stop, R–Stop, Run and Jog. When the MLP–Trim is
powered up, it defaults to R–Stop. If either Run or Jog have been hardwired, the
MLP–Trim will operate in either Run or Jog instead of R–Stop. Run is hardwired by
shorting Run, R–Stop and F–Stop to common. Jog is hardwired by shorting Jog,
R–Stop, and F–Stop to common.
The motor drive is activated by the Drive Enable logic control. The sections that follow
demonstrate how to use the digital inputs and outputs.
Caution
Do not use the AC line power
to start or stop the system.
Use the Digital Inputs to start or stop
the system.