18
Calibration
Warning
Dangerous voltages exist on the drive when it is powered.
When possible, disconnect the voltage input from the drive
before adjusting the trimpots. If the trimpots must be
adjusted with power applied, use insulated tools and the
appropriate personal protection equipment. BE ALERT.
High voltages can cause serious or fatal injury.
m
MM21000A Series drives have six user-adjustable trimpots. Each
drive is factory calibrated to its maximum horsepower rating.
Readjust the calibration trimpot settings to accommodate lower
horsepower motors. See Figure 5 (page 19) for trimpot location.
All adjustments increase with clockwise (CW) rotation and
decrease with counterclockwise (CCW) rotation. Use a non-
metallic screwdriver for calibration. Each trimpot is identified on
the printed circuit board.
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