Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 47)

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3. Slowly increase the speed reference signal. The motor
slowly accelerates as the potentiometer is turned CW
or the external speed reference is increased. Continue
until the desired speed is reached.
4. Remove AC line voltage to coast the motor to a stop.
Pushbutton start/stop
SPEED REFERENCE: External signal or
potentiometer
START/STOP control: PUSHBUTTON
ATTENTION: Starting and stopping with the start/stop
terminals does not disconnect AC power in the stop
position. A hardwired AC power disconnection switch
must be mounted between the AC source and terminals
L I and L2. This is required, as the DC3 drive does not
have an armature loop contactor. A single fault like a
power device short may cause motor rotation when in
the stop mode. The user is responsible for assuring safe
conditions for operating personnel by providing suitable
guards, audio or visual alarms, or other devices. Failure
to observe these precautions could result in bodily
injury.
ƽ
Operation
1. Turn the speed adjust potentiometer full
counterclockwise (CCW), or set the external reference
signal so that it is at its lowest level (0 VDC or 4 mA).
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