Maintenance Manual

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To calibrate the line voltage sensor, use an external voltmeter that is already calibrated. With the control panel
under power:
- Read the voltage between L1 and L2, and press the first white box under “Sensor value”.
- Enter the voltages in the first white box below “Desired”.
- Read the voltage between L2 and L3, and press the second white box under “Sensor value”.
- Enter the voltages in the second white box below “Desired”.
- Read the voltage between L1 and L3, and press the third white box under “Sensor value”.
- Enter the voltages in the third white box below “Desired”.
- Press the “Compute” button.
To calibrate the current sensor, use an already calibrated current clamp. With the control panel under voltage and
the motor not powered, enter “0” in the white box under “Desired”. Press the higher “Read all” button. Start the
motor by pressing the manual start button on the ViZiTouch and wait for the motor to reach the full speed. Take a
reading with the current clamp on one line and press the lower “Read all” button. Enter the value taken with the
current clamp in the white box under “Desired”and at the right of “High”. Press Compute.
Important Notice!
Every analog sensor cable used for this controller should be shielded. The shield has to be grounded on the motor
side. Not complying to these recommendations may affect the controller good functioning and void its warranty.