Advanced program group (continued), A149 [s curve, A150 [pid trim hi – Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx User Manual

Page 95: A151 [pid trim lo

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Programming and Parameters

3-37

PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual

Publication 22C-UM001I-EN-P

Advanced Program Group (continued)

A149 [S Curve %]

Sets the percentage of acceleration or deceleration time that is applied to the ramp as S Curve. Time
is added, 1/2 at the beginning and 1/2 at the end of the ramp.

Values

Default:

20%

Min/Max:

0/100% (A setting of 0% disables this parameter.)

Display:

1%

Example:
Accel Time = 10 Seconds
S Curve Setting = 50%
S Curve Time = 10

×

0.5 = 5 Seconds

Total Time = 10 + 5 = 15 Seconds

1/2 S Curve Time

2.5 Seconds

Total Time to Accelerate = Accel Time + S Curve Time

50% S Curve

Target

Target/2

Accel Time

10 Seconds

1/2 S Curve Time

2.5 Seconds

Total Time to Accelerate = Accel Time + S Curve Time

100% S Curve

Target

S-Curve Time = Accel Time

A150 [PID Trim Hi]

Sets the maximum positive value that is added to a PID reference when PID trim is used.

Values

Default:

60.0 Hz

Min/Max:

0.0/320.0 Hz

Display:

0.1 Hz

A151 [PID Trim Lo]

Sets the minimum positive value that is added to a PID reference when PID trim is used.

Values

Default:

0.0 Hz

Min/Max:

0.0/320.0 Hz

Display:

0.1 Hz

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