Rockwell Automation 20G PowerFlex 750-Series AC Drives User Manual

Page 110

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110

Rockwell Automation Publication 750-RM002B-EN-P - September 2013

Chapter 2

Feedback and I/O

Example 6

P255 [Anlg In Type], Bit 0 = “0” (Voltage)

P545 [Spd Ref A Sel] = “Analog In 1”

P547 [Spd Ref A AnlgHi] = 60 Hz

P548 [Spd Ref A AnlgLo] = 0 Hz

P61 [Anlg In1 Hi] = 5V

P62 [Anlg In1 Lo] = 0V

This configuration is used when the input signal is 0…5V. Here, minimum input
(0V) represents 0 Hz and maximum input (5V) represents 60 Hz. This provides
full scale operation from a 0…5V source.

Example 7

P255 [Anlg In Type], Bit 0 = “0” (Voltage)

P675 [Trq Ref A Sel] = “Analog In 1”

P677 [Trq Ref A AnlgHi] = 200%

P678 [Trq Ref A AnlgLo] = 0%

This configuration is used when the input signal is 0…10V. The minimum input
of 0V represents a torque reference of 0% and maximum input of 10V represents
a torque reference of 200%.

5

4.5

4

3.5

3

2.5

2

1.5

1

0.5

0

0 10 20 30 40 50 60

Output Hertz

Inp

ut V

ol

ts

10

9

8

7

6

5

4

3

2

1

0

0 20 40 60 80 100 120 140 160 180 200

Torque Ref %

Inpu

t V

ol

ts

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