Rockwell Automation 1395 Digital Reference Adapter for RTP Applications - Manual (Page 54)

Publication 1395-RTP-5.2 - September 1997
8-12 Parameter Table
Parameter 555 – [A > Analog Offset #2]
Use: Analog Offset for Analog Input 2
Programming Terminal Units: Volts
Maximum Value: +10V DC
Minimum Value: -9.995V DC
Default Value: 0V DC
Description: This parameter is not used in the RTP Unwind Drive
applications. This parameter determines the analog offset applied to
the Analog Input #2 signal prior to the analog signal amplification.
This allows the signal to be shifted close to zero volts prior to being
amplified.
Parameter 556 – [A > ADC Scale #2]
Use: Digital Scale Factor for Analog Input 2
Programming Terminal Units: None
Maximum Value: +16
Minimum Value: -16
Default Value: 1.0
Description: This parameter is not used in the RTP Unwind Drive
applications. This parameter determines the digital scale factor or
gain for Analog Input 2. A 0 to +10V DC signal applied to the input
of the analog to digital converter, which is converted to a +2048
digital value prior to being digitally scaled and digitally offset and
used by the Drive. Before the digital value is displayed or transferred
to the Drive, the Scale Factor is applied, thus allowing an effective
digital range of ±32767 (16 times 2048). The absolute digital value is
clamped at 32767.
Parameter 557 – [A > ADC Offset #2]
Use: Digital Offset for Analog Input 2
Programming Terminal Units: Volts
Maximum Value: +20V DC
Minimum Value: -20V DC
Default Value: 0.0V DC
Description: This parameter is not used in the RTP Unwind Drive
applications. This parameter determines the digital offset applied to
the output value of the analog to digital converter of Analog Input 2
value, before the digital scale factor is applied. This allows the user to
shift the range of the analog input.
Parameter 558 – [A> Dancer Full Position – Analog In #1]
Use: Determines a specific dancer position of analog input #1 Dancer
potentiometer wiper voltage.
Program Terminal Units: None
Minimum Value: 0
Maximum Value: 2048
Default Value: 1500