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Calibration
Drive Calibration Procedure
Prepare the MM300 series drive for calibration as follows. This procedure applies to
both chassis and enclosed drives.
1. Ensure that no power is applied to the drive.
2. If you use an enclosed drive, you must open the drive cover to gain access to the
trimpots. Turn the slotted screw on the front cover counterclockwise until it is free
from the enclosure. The right side of the cover is hinged to the enclosure. Pull the
slotted screw to open the enclosure.
3. Set all trimpots except CURRENT LIMIT and TACH VOLTS full counterclockwise
(CCW).
4. Set the CURRENT LIMIT trimpot full clockwise (CW).
5. Make no adjustment to the TACH VOLTS trimpot unless tachometer feedback is
used. If you use tachometer feedback, set the TACH VOLTS trimpot to the center
of travel (12 o’clock position).
6. Adjust the trimpots in the following order:
a. MINIMUM SPEED (MIN SPD)
b. MAXIMUM SPEED (MAX SPD)
c. CURRENT LIMIT
d. IR COMPENSATION (IR COMP)
e. ACCELERATION (ACCEL)
f. DECELERATION (DECEL)
g. TACH VOLTS (if used)
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