Rockwell Automation DC3RD Digital Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 42)

34 Calibration
ATTENTION: Do not turn DB past the 60 HZ setting.
This could cause shoot through, which may blow fuses
and cause the drive to fail.
ƽ
DB
The deadband trimpot setting determines the time that will
elapse between the application of current in one direction
before current is applied in the opposite direction. It also
affects the resistance that a motor has to changes in shaft
position at zero speed by applying AC voltage to the motor
armature.
2. Set the REV TQ trimpot to minimum (full CCW).
3. Lock the motor armature. Be sure that the motor is
firmly mounted.
4. Connect power to the drive. The motor should remain
stopped.
5. Press REV .
5. Set the reverse speed adjust potentiometer for maximum
reverse speed.
6. Adjust the REV TQ trimpot CW until the armature
current is 120% of motor rated current.
7. Set the reverse speed adjust potentiometer to minimum
and remove the stall from the motor.
250-0285-rev1.qxd 4/26/00 9:36 AM Page 34