Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 312)

Publication 900-UM007D-EN-E - January 2011
5-84 Parameter Functions & Definitions
Related Parameters
• PV Stable Band (Advanced Setting function group, page 5-84)
PV Stable Band
Function: This parameter allows you to configure the PV Stable Band width
in
°C, °F, or % full scale within which the PV display color is changed based on
your configuration of the PV Color Change parameter.
• When the mode to link to the PV stable band is selected with the PV
Color Change parameter, the PV display color will change according to
whether the present value (PV) is lower than, within, or higher than the
PV stable band, as shown in the following figure.
• There is a fixed hysteresis of 0.2 (°C or °F).
Figure 5.13
Linked to PV
stable band
Low PV stable band High Application example
r-g.r
Red to Green
to Red Red Green Red To display stable status
g-o.r
Green to
Orange to Red Green Orange Red To display stable status
o-g.r Orange to
Green to Red Orange Green Red To display stable status
Table 5.CW — Settings
Mode Setting Function PV Color Change Application Example
PV
SP
Within
PV stable
band Within
PV stable
band
Within Low High
pv-b
PV Stable
Band PV Stable
Band
Low Within High
SP
PV
0.2 (°C or °F)
0.2 (°C or °F)
When analog inputs are used: 0.02 (% FS).