Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 319)

Publication 900-UM007D-EN-E - January 2011
Parameter Functions & Definitions 5-91
Function: This parameter allows you to configure the SP and PV process
condition for the LBA Level parameter.
• If the deviation between the SP and PV exceeds the LBA Level, a
control loop error is detected.
Related Parameters
• Process Value/Set Point (Operation function group, page 5-8)
• Alarm 1 Type (Initial Setting function group, page 5-59)
• LBA Detection Time (page 5-90), LBA Band (page 5-91) (Advanced
Setting function group)
Loop Break Alarm (LBA) Band
Conditions of Use: Alarm 1 must be assigned. The Alarm Type parameter
must be set to 12 (LBA). The LBA Detection Time must NOT be 0.
Function: This parameter allows you to configure the LBA band.
• If a control deviation greater than the LBA Band is not reduced when
the LBA Level is exceeded, a control loop error is detected.
Note: For more details concerning the LBA Band, refer to Section 4,
Loop
Break Alarm on page 4-47.
Table 5.DI
Controller Models
Configurable
Range
Units Default
Controllers with Thermocouple and
Resistance Thermometer (RTD) Inputs 0.1…999.9
°C or °F ➊
8.0
Controllers with Analog Inputs 0.01…99.99 %FS 10.00
➊
Set NONE as the unit for Controllers with 0… 50 Millivolt Inputs.
Table 5.DJ
Controller Models
Configurable
Range
Units Default
Controllers with Thermocouple and
Resistance Thermometer (RTD) Inputs 0.0…999.9
°C or °F ➊
3.0
Controllers with Analog Inputs 0.00…99.99 %FS 0.20
➊
Set NONE as the unit for Controllers with 0… 50 Millivolt Inputs.
lbab