Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 53)

45 Operation
Enclosed drive operating modes
The mode selector switch on the drive, mounted on its
cover, provides the option of operating in either MANUAL
(mounted speed potentiometer) or AUTO (external signal
source) mode.
Manual mode
Set the mode selector switch to MANUAL if you wish to
control the motor speed using the speed adjust
potentiometer mounted on the drive cover. In MANUAL
mode, the motor speed is controlled by the speed adjust
knob located on the drive cover. Setting the speed adjust
knob to zero causes the motor to run at the minimum speed
dictated by the MIN SPD trimpot setting. Refer to the
Calibration section (page 48) for information on
calibrating the MIN SPD trimpot. Set SIGNAL SELECT
switch SW504 to VOLT when in manual mode.
ATTENTION: If you run the drive in AUTO mode, you
must recalibrate the MIN SPD trimpot to offset any
motor drift caused by the input signal. Refer to the
Calibration section (page 48) for more information.
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