Analog outputs, Analog outputs -2 – Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) User Manual

Page 114

Advertising
background image

Publication 2364F-5.01– October 2003

11-2

Configuring Analog Input and Output Parameters

Analog Outputs

The RGU has two 12-bit, digital-to-analog convertors (DAC) rated to
provide analog outputs in the range of +/- 10V DC. The two DACs
are labeled DAC1 and DAC2.

Each DAC is programmed using 4 parameters that identify the value
to be sent to the analog output and specify how that value needs to be
scaled prior to digital-to-analog (D/A) conversion. Refer to Figure
11.1
for a block diagram. These parameters are as follows:

The following DAC parameter allows you to view the scaled value
prior to D/A conversion:

The analog output is accessible via terminal block 1 (TB1) on the
main control board as follows:

Description

DAC1 Parameter Number

DAC2 Parameter Number

Source (Indirect)

49

53

Offset

50

54

Gain

51

55

Cutoff frequency for the
internal low-pass filter

52

56

Description

DAC1 Parameter Number

DAC2 Parameter Number

Scaled value prior to D/A
conversion

47

48

DAC Name

Output

Terminal Designator

DAC1

(+)

TB1-7

(-)

TB1-8

DAC2

(+)

TB1-9

(-)

TB1-10

Advertising