Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 263)

Publication 900-UM007D-EN-E - January 2011
Parameter Functions & Definitions 5-35
Upper-Limit Temperature Input Shift Value,
Lower-Limit Temperature Input Shift Value
Conditions of Use: The Input Type parameter must be configured for a
thermocouple on RTD sensor and the Input Shift Type parameter must be
configured for 2-Point Shift. When using an infrared type sensor simply
configure Input Type to infrared and Upper/Limit Input Shift is automatically
allowed.
Function: Whereas the entire input range is shifted by a fixed value (1-point
shift) in the Temperature Input Shift parameter, this function shifts the input
range by two points (2-point shift) at the Upper- and Lower-Limits. This
allows a more accurate offset of the input range.
This parameter sets input shift values for each of the Upper- and Lower-Limits
(2-point shift) of the input range are shown in Table 5.AL , Allowable Range.
Related Parameter
• Input Type (Initial Setting function group, page 5-50)
• Input Shift Type (Advanced Setting function group, page 5-86)
Proportional Band,
Integral Time,
Derivative Time
Conditions of Use: The control method must be 2-PID control.
Function: These three parameters allow you to manually configure the PID
value parameters. Note that the PID parameters are automatically configured
by the controller when either the Auto-Tune (AT) or Self-Tune (ST)
parameters are executed.
Table 5.AL — Allowable Range
Configurable Range Units Default Value
–199.9…+999.9
°C or °F
0.0
insh
insl
p
i
d