Speed reference scaling – Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual User Manual

Page 146

Advertising
background image

146

Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011

Chapter 1 Detailed Drive Operation

Figure 23 - Selected Speed Reference

Parameter 27 [Speed Ref A Sel] and parameter 28 [Speed Ref B Sel] determine
the source of Reference A and B. Parameter 27 and 28 can be set to the following
values:

Speed Reference Scaling

Parameter 10 [Speed Ref 1] and parameter 12 [Speed Ref 2] are real parameters
with units of per unit, where a value of 1 per unit equals base motor speed. Speed
reference 1 and 2 each have their own scaling blocks. The speed reference value in
parameter 10 [Speed Ref 1] is divided by the scaling value set in parameter 11
[Spd Ref1 Divide]. The speed reference value for parameter 12 [Speed Ref 2] is
multiplied by the scaling parameter 13 [Spd Ref2 Multi].

Setting

Description

0 - Zero Speed

Zero Speed is selected as the speed reference.

1 - Speed Ref 1

Parameter 10 [Speed Ref 1] is selected as the speed reference

2 - Speed Ref 2

Parameter 11 [Speed Ref 2] is selected as the speed reference

3 - Sum Sref 1+2

The sum of [Speed Ref 1] and [Speed Ref 2] is selected as the speed reference.
Note that there is no “Speed Ref 3” parameter

4 - MOP Level

Speed reference from motor operated pot, parameter 1090 [MOP Level Real].

5 - Preset Spd 1

Parameter 14 [Preset Spd 1] is selected as the speed reference

6 - Preset Spd 2

Parameter 15 [Preset Spd 2] is selected as the speed reference

7 - Preset Spd 3

Parameter 16 [Preset Spd 3] is selected as the speed reference

8 - Preset Spd 4

Parameter 17 [Preset Spd 4] is selected as the speed reference

9 - Preset Spd 5

Parameter 18 [Preset Spd 5] is selected as the speed reference

10 - Preset Spd 6 Parameter 19 [Preset Spd 6] is selected as the speed reference
11 - Preset Spd 7 Parameter 20 [Preset Spd 7] is selected as the speed reference
12 - DPI Port 1

The speed reference comes from local drive mounted HIM

13 - DPI Port 2

The speed reference comes from the external DPI communication module

14 - DPI Port 3

The speed reference comes from the auxiliary external DPI communication module

16 - DPI Port 5

The speed reference comes from the internal DPI communication module

29

40

Jog Speed 2

39

Jog Speed 1

Applied LogicCmd

Selected Speed Ref

0

1

2

3

4

5

6

7

15

16

17

18

19

20

152

18

152

23

0

1

1

0

29 30

152

28

Applied LogicCmd

Preset Speed 2

Speed Reference A

Speed Reference B

Preset Speed 3

Preset Speed 4

Preset Speed 5

Preset Speed 6

Preset Speed 7

Advertising