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Trim control overview, Er to the trim control overvie, B-10 – Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual

Page 348: Process trim, Speed trim, B-10 control block diagrams

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B-10

Control Block Diagrams

Trim Control Overview

You can use the following block diagram to view how the drive uses
the process trim parameters to modify the speed and torque reference
values that the motor uses.

Process Trim

PTrim Select
(Trim Limiter)

STOP

Output Gain/4096

Data

Process Trim PI

Regulator

Ramp Output

B

R

Low

Pass

Filter

K

I

/4096

K

P

/4096

53

54

55

60

59

PTrim Hi Limit

6

PTrim Lo Limit

Limit

Speed Trim

51

0

PTrim Select

(Select Speed Output)

0

+

+

Zero

Reference

0

Speed Trim

Limit

Trim Limit

51

5

Freq Limit

V

T

To Speed
PI Regulator

Torque Trim

0

T

pt

To Torque
Reference

51

1

PTrim Select

(Select Torque)

51

3

58

51

4

11

Logic

Input Sts

PTrim Select (Set Output)

PTrim Select (Preset Integ.)

62

Max Fwd
Spd Trim

61

Max Rev Spd Trim

PTrim Preload

PTrim Ki

PTrim Kp

PTrim Out Gain

Nameplate Hz

48

PTrim

Output

OR

14

Process Trim

51

6

PTrim Select

(Enable)

Enable

82

Command

Spd Sts

52

PTrim Filter BW

Process Trim

Speed Input Select

51

2

PTrim Select

(Select Speed Input)

49

50

PTrim Reference

PTrim Feedback

81

Motor Speed

from Speed

Feedback

+