User Manual Instruction Manual

Application Notes 13-93
13.35 Scale Blocks
Scale blocks are used to scale a parameter value. Scalex In Value is linked to the
parameter that you wish to scale. Scalex In Hi determines the high value for the input
to the scale block. Scalex Out Hi determines the corresponding high value for the
output of the scale block. Scalex In Lo determines the low value for the input to the
scale block. Scalex Out Lo determines the corresponding low value for the output of
the scale block. Scalex Out Value is the resulting output of the scale block.
There are (3) ways to use the output of the scale block:
1. A linkable destination parameter can be linked to [Scalex Out Value]. See Example
Configuration #1.
2. [Analog Outx Sel] can be set to:
- 20, “Scale Block1”
- 21, “Scale Block2”
- 22, “Scale Block3”
- 23, “Scale Block4”
Note that when the Analog Outputs are set to use the scale blocks, the Scalex Out Hi
and Scalex Out Lo parameters are not active. Instead, Analog Outx Hi and Analog
Outx Lo determine the scaling for the output of the scale block. See Example
Configuration #2.
3. PI Reference Sel (126) and PI Feedback Sel (128) can also use the output of the
scale block by setting them to:
- 25, “Scale Block1 Out”
- 26, “Scale Block2 Out”
Note that when PI Reference Sel (126) and PI Feedback Sel (128) are set to use the
scale blocks, the Scalex Out Hi and Scalex Out Lo parameters are not active. Instead,
PI Reference Hi (460) and PI Reference Lo (461), or PI Feedback Hi (462) and PI
Feedback Lo (463), determine the scaling for the output of the scale block. See
Example Configuration #3.