Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 269)

Publication 900-UM007D-EN-E - January 2011
Parameter Functions & Definitions 5-41
Related Parameters
• RUN/STOP (Operation function group, page 5-16)
• MV at Stop and Error Addition (Advance Setting function group, page
5-87)
MV at PV Error
Conditions of Use: The control must be configured for 2-PID control. The
MV at Stop and Error Addition parameter must be ON.
Function: This parameter allows you to configure the amount the MV
(process output) is Open/On when an input ERROR occurs.
Related Parameters
• MV at Stop and Error Addition (Advance Setting function group, page
5-87)
SP Ramp Set Value
Conditions of Use: Self tuning (ST) must be configured to OFF.
Function: If a large change is made to the value of the set point, it is possible
the rate the system reacts may exceed the desired limit. This parameter allows
you to configure the maximum rate of set point change. Configure the
maximum permissible change width per unit of time (minute) as the SP Ramp
value. However, note, that when the SP Ramp value is set to OFF, the SP ramp
function is disabled.
When using a temperature input, the decimal point position of the SP Ramp
value is dependent on the currently selected sensor, and when using an analog
input it is dependent on scaling.
Note: The SP Ramp Time Unites parameter in the Advanced Setting function
group allows you to enter seconds or minutes units.
Table 5.AU
Configurable Range Units Default
−5.0…105.0 for standard control
−105.0…105.0 (heating/cooling control)
% 0.0
mv-e
sprt