Rockwell Automation VSM500 Integrated Drive/Motor - Manual (Page 48)

8-4 Installing and Operating the VSM500 Integrated Drive/Motor, Version 3.0
8.2 Adjusting the Acceleration / Deceleration Time
The acceleration / deceleration time is the amount of time it takes the motor to ramp
from stop to the maximum speed setting of the unit. This is also the amount of time it
takes the motor to ramp from the maximum speed setting to stop.
Range: 1, 5, 10, 15, 20, 30, 60, 90 seconds
Default: 5 seconds
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:
Step 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.
Step 2. Connect the display board ribbon cable and replace the cover. Verify that all
four cover screws are in place and tightened.
Figure 8.3 – Acceleration / Deceleration Rotary Switch
0 = 1 sec accel / 5 sec decel
1 = 5 sec (Default)
2 = 10 sec
3 = 15 sec
4 = 20 sec
5 = 30 sec
6 = 60 sec
7 = 90 sec Accel Time = the time required to
accelerate from stop to MAX SPEED.
Decel Time = the time required to
decelerate from MAX SPEED to stop.
3
4
5
1
2
7
0
6
Example
Assume:
Max Speed = 1800 RPM
Operating Speed = 900 RPM
Accel/Decel Time Setting = 30 Seconds
Use the following formula:
Operating Speed x Accel/Decel Time Setting = Time to Operating Speed
Max Speed
900 x 30 = 15
1800
It will take 15 seconds to ramp from stop to 900 RPM.
1800 RPM
900 RPM
TIME
15 Sec 30 Sec
S
PEE
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