Rockwell Automation 1395 Digital Reference Adapter for RTP Applications User Manual

Page 61

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Publication 1395-RTP-5.2 - September 1997

Parameter Table

8-19

Parameter 584 – [A> P/I Regulator Output Low Clamp]

Use: Specifies the minimum value of the P/I Output.
Program Terminal Units: None
Maximum Value: 0
Minimum Value: -500
Default Value: -160

Description: This parameter specifies the minimum value that the P/I
Regulator can operate to.

Parameter 586 – [A> DAC Scale 1]

Use: Offset for Analog Output 1
Program Terminal Units: None
Maximum Value: +1
Minimum Value: -1
Default Value: .5

Description: This parameter is not used in the RTP unwind Drive
applications. This parameter determines the scale factor or Gain for
Analog Output 1. A ±32767 digital value from the Drive is converted
to a ±10V DC signal. Before the digital value is converted, the Scale
Factor is applied, thus allowing an effective digital range of ±2048
(32767/16 = 2048 = 10V DC). This is achieved by programming the
Scale Factor to .0625 or 1/16.

Parameter 587 – [A> DAC Offset 1]

Use: Offset for Analog Output 1
Program Terminal Units: Volts
Maximum Value: +10V DC
Minimum Value: -10V DC
Default Value: 0

Description: This parameter is not used in the RTP Unwind Drive
applications. This parameter determines the offset to the raw Analog
Output 2 value after the Scale Factor is applied. This allows the user
to shift the range of the analog output.

Parameter 588 – [A> DAC Scale 2]

Use: Scale Factor for Analog Output 2
Program Terminal Units: None
Maximum Value: +1
Minimum Value: -1
Default Value: .5

Description: This parameter is not used in the RTP Unwind Drive
applications. This parameter determines the scale factor or Gain for
Analog Output 2. A ±32767 digital value from the Drive is converted
to a ±10V DC signal. Before the digital value is converted, the scale
factor is applied, which allows an effective digital range of ±2048
(32767/16 = 2048 = 10V DC). This is achieved by programming the
Scale Factor to .0625 or 1/16.

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