Rockwell Automation 1395 Discrete Adapter, Rev 3.XX-8.XX - Manual (Page 45)

Chapter 8
Parameter Table
8-10
Parameter 454 - [A > Analog Out 4]
354 - [B > Analog Out 4]
Use: Digital Value of Analog Output 4 Signal
Program Terminal Units: None
Maximum Value: 32767
Minimum Value: –32767
Default Value: None
Description: This parameter is a Fast Sink which converts a
±
32767
digital value to a
±
10 VDC output. This digital value can then be linked to
one of the drive output parameters such as Velocity Feedback, Torque
Command, Flux Command, etc. Through programming of the associated
configuration parameters a Scale Factor and Offset can be applied to the
output before it is converted to the analog signal.
SetĆUp Parameters
Set-Up parameters control how the Discrete Adapter manipulates data.
Specifically they allow programming the bit positions for digital inputs and
outputs along with scale factors and offsets for analog inputs and outputs.
Parameter 550 - [A > ADC Scale 1]
500 - [B > ADC Scale 1]
Use: Scale Factor for Analog Input 1
Program Terminal Units: None
Maximum Value: +16
Minimum Value: –16
Default Value: 1
Description: This parameter determines the scale factor or Gain for
Analog Input 1. A
±
10 VDC signal applied to Analog Input 1 is converted
to a
±
2048 digital value 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 551 - [A > ADC Offset 1]
501 - [B > ADC Offset 1]
Use: Offset for Analog Input 1
Programming Terminal Units: Volts
Maximum Value: +20 VDC
Minimum Value: –20 VDC
Default Value: 0V DC
Description: This parameter determines the offset applied to the raw
Analog Input 1 value before the Scale Factor is applied. This allows the
User to shift the range of the analog input.