Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) User Manual

Page 158

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Publication 2364F-5.01– October 2003

D-14

Programming Parameters

48

D/A Converter 2 Output
[DAC2 Output]
This parameter contains the value that is to be
sent to the digital-to-analog converter, then to
Analog Out 2 ( TB1-9, TB1-10 [com]).

The display value (-2048 to 2047) represents the
digital value, which is proportional to the voltage
sent through Analog Out 2 (-10V to +10V).

Parameter Type

Source (Read Only)

Display Units

None

Drive Units

Display Units * 1

Factory Default

0

Minimum Value

-2048 (-10V signal)

Maximum Value

2047 (+10V signal)

Related Parameters

P53, P54, P55, P56

See Chapter

11

An external analog device can be wired to Analog
Out 2 (DAC2 Output), and can read the contents
of a parameter, selected by P53 (D/A Converter 2
Source).

The quick reference chart can be used to convert
the display value into the analog output voltage.

See the diagram for P46 (D/A Converter 1 Source)
for an example of how a source parameter is
processed for Analog Out.

49

D/A Converter 1 Source
[DAC1 Indirect]

This parameter identifies the parameter value
which will be sent to DAC1 and out to Analog Out
1. The P47 listing (D/A Converter 1 Output)
shows a diagram of the DAC process.

The default selection is P141 (Bus Feedback).

Parameter Type

Sink (Read/Write)

Display Units

Parameter Number

Drive Units

Display Units * 1

Factory Default

141 (Bus Feedback Parameter)

Minimum Value

0

Maximum Value

Maximum Defined Parameter Number

Related Parameters

P47, P50, P51, P52

See Chapter

11

50

D/A Converter 1 Offset
[DAC1 Offset]

This parameter determines the +/- adjustment to
the value being sent to DAC1 (which is indicated
by P49 [D/A Converter Source]). This offset is
applied before the gain (P51).
The P47 listing (D/A Converter 1 Output) shows a
diagram of the DAC process.

Parameter Type

Sink (Read/Write)

Display Units

None

Drive Units

Display Units * 1

Factory Default

0

Minimum Value

-32768

Maximum Value

32767

Related Parameters

P47, P49, P51, P52

See Chapter

11

51

D/A Converter 1 Gain
[DAC1 Gain]

This parameter determines the gain adjustment to
the value being sent to DAC1 (which is indicated
by P49 [D/A Converter Source]). This gain is
applied after the offset (P50).
The P47 listing (D/A Converter 1 Output) shows a
diagram of the DAC process.

Parameter Type

Sink (Read/Write)

Display Units

None

Drive Units

Display Units * 256

Factory Default

0.25

Minimum Value

-128.00

Maximum Value

128.00

Related Parameters

P47, P49, P50, P52

See Chapter

11

TB1

9

10

To Analog

Device

DAC2

A

n

a

lo

g

O

u

t

2

A

n

a

lo

g

O

u

t

2

(

C

om

)

Quick Reference Chart

-10

-8

-6

-4

-2

0

2

4

6

8

10

-2048

-1536

-1024

-512

0

512

1024

1536

2048

DAC Display Values

An

alog

Ou

tp

u

t V

o

ltag

e

(V

D

C

)

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