Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 316)

Publication 900-UM007D-EN-E - January 2011
5-88 Parameter Functions & Definitions
Robust Tuning (RT)
Conditions of Use: The control method must be configured to 2-PID
control. The Input Type must be configured to temperature input.
Function: This parameter executes robust tuning (RT).
• When Auto-tuning (AT) or Self-tuning (ST) is executed with RT
selected, PID constants are automatically set which make it hard for
control performance to degenerate even when control object
characteristics have changed.
• Even when hunting occurs for PID constants when AT or ST is
executed in normal mode, it is less likely to occur when AT or ST is
executed in RT mode.
Related Parameters
• AT Execute/Cancel (page 5-25), Proportional Band, Integral Time,
Derivative Time (page 5-35) (Adjustment function group)
• PID ON/OFF (page 5-55), ST (page 5-56) (Initial Setting function
group)
Heater Short Alarm (HSA) Use
(900-TC8, 900-TC16)
Conditions of Use: Heater Burnout (HBA), Heater Short Alarms (HSA), and
heater overcurrent detection must be supported. Alarm 1 must be assigned.
Optional controller hardware and/or support hardware (e.g., CTs) must be
installed.
Function: This parameter allows you to enable the controller to support the
Heater Alarm functions
Table 5.DD
Selections Default
on: RT function OFF, off: RT function ON off
Table 5.DE
Configurable Range Default
on: Enabled, off: Disabled on
rt
hsu