Rockwell Automation DC3RD Digital Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 41)

6. Set the forward speed adjust potentiometer for maximum
forward speed.
7. Adjust the FWD TQ trimpot CW until the armature
current is 120% of motor rated current.
8. Set the forward speed adjust potentiometer to minimum
and remove the stall from the motor.
33 Calibration
REV TQ
ATTENTION: Although the REV TQ trimpot is set to
120% of motor nameplate current rating, continuous operation
beyond that rating may damage the motor.
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The REV TQ trimpot setting determines the maximum
torque for accelerating and driving the motor in the reverse
direction. It also sets the maximum torque for decelerating
the motor from the forward direction. REV TQ is factory
set at 120% of rated motor current.
To recalibrate REV TQ, refer to the recommended REV
TQ settings on Figure 8, page 40, or recalibrate using the
following procedure:
1. With the power disconnected from the drive, connect a
DC ammeter in series with the armature.
250-0285-rev1.qxd 4/26/00 9:36 AM Page 33