Rockwell Automation DC3N DC Drive User Guide, 1/4-2HP-115/230 VAC - Manual (Page 27)

19 Operation
DC3N Chassis Drives
1. Turn the speed adjust potentiometer full counterclockwise (CCW).
2. Apply AC line voltage.
3. Slowly advance the speed adjust potentiometer clockwise (CW). The motor
slowly accelerates as the potentiometer is turned CW. Continue until the desired
speed is reached.
4. Remove AC line voltage from the drive to coast the motor to a stop.
DC3N Enclosed Drives (NEMA 1 and NEMA 4X)
1. Set the speed adjust potentiometer to “0” (full CCW).
2. Apply AC line voltage.
3. Set the POWER switch to the ON position.
4. Slowly advance the speed adjust potentiometer clockwise (CW). The motor
slowly accelerates as the potentiometer is turned CW. Continue until the desired
speed is reached.
5. Set the POWER switch to the OFF position to coast the motor to a stop.
ATTENTION: The equipment is at line voltage when AC power is connected.
Disconnect and lockout all ungrounded conductors of the AC power line.
Failure to observe this precaution could result in severe bodily injury or loss of
life.
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Starting and stopping methods
Line starting and line stopping
Line starting and line stopping (applying and removing AC line voltage) is
recommended for infrequent starting and stopping of a drive only. When AC line
voltage is applied to the drive, the motor accelerates to the speed set by the speed
adjust potentiometer. When AC line voltage is removed, the motor coasts to a stop.