Rockwell Automation 1329I Integrated AC Drive/Motor, Series A - Manual (Page 38)

8-4 Step 8 - Verify the Setup and Adjust Switches if Required
1329I-5.0 Integrated Drive/Motor — January, 1999
Note that if the operator speed reference setting is less than the maximum speed value,
the acceleration / deceleration ramp time is proportionately less than the acceleration /
deceleration setting.
To adjust the acceleration / deceleration time:
1. To increase the acceleration / deceleration time, turn the accel / decel rotary switch to a
higher position number.
-or-
To decrease the acceleration / deceleration time, turn the accel / decel rotary switch to a
lower position number.
2. Connect the display board ribbon cable and replace the cover. Verify that all four
cover screws are in place and tightened.
3. Apply AC input power.
4. Set the desired operating speed.
5. Standard units: Use the speed potentiometer or other user-supplied external
speed reference device.
6. Local operator control units: Use the key to increase the speed reference
and the key to decrease the speed reference.
7. Repeat the adjustment procedure until the desired acceleration / deceleration time
is obtained. Note that changes to the acceleration / deceleration time are recog-
nized only while the drive is stopped.
Important: If speed is erratic or not as expected, verify that only one of the speed
reference inputs (0 to 10 VDC or 4 to mA) has been wired.
TIME
15 Sec
30 Sec
1800 RPM
900 RPM
SPEED
Example
Assume:
Max Speed = 1800 RPM
Operating Speed = 900 RPM
Accel/Decel Time Setting = 30 Seconds
Use this formula:
x Accel/Decel Time Setting = Time to Operating Speed
x 30 = 15
It will take 15 seconds to ramp from stop to 900 RPM.
Operating Speed
Max Speed
900
1800