Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) - Manual (Page 117)

Publication 2364F-5.01– October 2003
Configuring Analog Input and Output Parameters 11-5
Analog Output Example
Example:
In a unit with a 460V AC input, send the Scaled Bus Feedback (P143)
out through Analog Out 1. The analog output will be between 0 and
+10V.
Note: The maximum value of P143 for this example would be
1050V (1.5 x 700 = 1050).
The DAC1 Indirect (P49) will be used to select which parameter
should be processed through DAC1 (out TB1-7 and TB1-8).
The DAC 1 Offset (P50) will be used to determine how the parameter
information will be adjusted (+/-) before being sent to Analog Out 1.
The DAC1 Gain (P51) will be used to adjust the magnitude of the
signal being sent to Analog Out 1.
The DAC1 Cutoff Frequency (P52) will be used to adjust the
frequency of the output to Analog Out 1.
The DAC1 Output (P47) will be used to view the output being sent to
Analog Out 1. The value 2047 corresponds to a +10V AC output
being sent to Analog Out 1, and the value -2048 corresponds to a
-10V AC output being sent to Analog Out 1.
The following steps could be taken to send the Scaled Bus Feedback
out through Analog Out 1 (TB1-7 and TB1-8) with an output of 0 to
+10V.
143
Scaled Bus Feedback
[Scaled Bus Fbk]
This parameter shows the calibrated bus
feedback. The value of this parameter is used to
determine the Bus Feedback (P141) and is used
to calculate the DC Bus Current (P107).
Parameter Type Source (Read Only)
Display Units Volt
Drive Units Display Units * 4096/P16
Factory Default 0
Minimum Value 0
Maximum Value 1.5 x P16
Related Parameters P38, P60, P61, P144
P49
DAC1
Indirect
P50
DAC1
Offset
P51
DAC1
Gain
P52
DAC1
Cutoff Freq
P47
DAC1
Output
+/- adjustment to
value in P143
multiplier to value
in P143
adjusts the
frequency
sends the
resulting value to
Analog Out 1.
points to value in
P143
P143
Scaled Bus
Feedback
Analog Out 1