Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 64)

DECEL
The DECEL setting determines the time the motor takes to
ramp to lower speed, within the limits of available torque.
The DECEL setting is factory set for its fastest deceleration
time (full CCW).
To calibrate DECEL:
1. Set the speed adjust potentiometer or external reference
signal for maximum speed. The motor should run at
maximum speed.
2. Set the speed adjust potentiometer or external reference
signal for minimum speed and measure the time it takes
the motor to go from maximum to minimum speed.
3. If the time measured in step 2 is not the desired
deceleration time, turn the DECEL trimpot CW for a
slower deceleration time, or CCW for a faster
deceleration time.
Repeat steps 1 through 3 until the deceleration time is
correct.
56 Calibration
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