Creative Conners Stagehand Pro 3, Reference Manual

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Stagehand Pro 3 Reference Manual, 11-20
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The Mitsubishi A800, like many VFD’s, has a built-in “auto-tuning” procedure which electrically
probes the motor to give the VFD a better understanding of the motor it is tasked with controlling.
This procedure should be run every time you connect the Stagehand to a different motor since
different motors have different electrical properties. Not as obvious, you should also run the auto-
tuning procedure any time that you change cable lengths between the Stagehand and the machine.
The operation typically takes less than a minute and does not move the motor shaft substantially but
will release the motor brake so the drive can sense the motor’s reaction to applied power.
There are two methods available to execute the Auto-Tuning procedure: from within Spikemark 4.0
and higher or manually from the VFD keypad. The Stagehand Pro uses the Mitsubishi’s internal PLC
to insure safe operation of the redundant brake circuits. This PLC feature must be turned off in order
run the “auto-tuning” procedure. This procedure is automated from within Spikemark with a click of
the mouse. You will need to stop the PLC program manually If running the auto-tune procedure from
the VFD keypad.
Within Spikemark
Follow these steps to auto-tune from Spikemark 4.
1. Connect to the Stagehand from Spikemark
2. Select the correct Stagehand in the Cue Grid
3. Scroll down the Stagehand Properties on the right side of Spikemark until the Drive Section
4. Click “Auto-Tune”