Dac gain parameters, Dac cutoff frequency parameters, Dac output parameters – Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) User Manual

Page 116

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Publication 2364F-5.01– October 2003

11-4

Configuring Analog Input and Output Parameters

DAC Gain Parameters

Use this parameter to specify the gain of the value that you want sent
to the analog output. To determine a gain value, do the following:

1. Verify that P6 (Unit Selection) is set to display engineering units.

2. Identify the maximum and minimum values of the source value.

3. Add the offset value to both the maximum and minimum source

values.

4. Select the largest absolute source value as the maximum DAC

output.

5. Select a gain so that the maximum DAC output will not exceed

+/- 2048.

Important: A gain value of 0 will result in an analog output value of
0V.

Important: If you select a gain value that permits the DAC output to
exceed +/- 2048, the analog output value will cutoff to +10V DC for
DAC outputs greater than +2048, and to -10V DC for DAC outputs
less than -2048.

DAC Cutoff Frequency Parameters

Use this parameter to specify a cutoff frequency for the low pass
filter.

Note: A cutoff frequency of zero deactivates the filter.

DAC Output Parameters

Use this parameter to view the scaled source value that is being
converted and applied to the analog output.

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