Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 259)

Publication 900-UM007D-EN-E - January 2011
Parameter Functions & Definitions 5-31
Heater Burnout Detection 2 (900-TC8, 900-TC16)
Conditions of Use: Heater Burnout (HBA) and Heater Short (HSA) alarms
and heater overcurrent detection must be supported. Alarm 1 must be
assigned. The Heater Burnout Detection parameter must be set to ON. Two
CTs must be wired to the controller.
Function: This parameter allows you to configure the current value in amps
(A) at which the electrical Heater Burnout Alarm Output parameter becomes
active (ON).
Table 5.AG
• When the heater current value falls below the configured parameter
value, the Heater Burnout Alarm output goes ON. When the current is
equal to or greater than the value, the alarm is OFF.
• When the configured value is 0.0, the Heater Burnout Alarm is always
OFF. When the configured value is 50.0, the Heater Burnout Alarm is
always ON.
Related Parameters
Refer to the Advanced Setting function group:
• Heater Current 1 Monitor (page 5-13)
• Heater Burnout Detection, Heater Burnout Latch, Heater Burnout
Hysteresis (page 5-74)
HS Alarm 1 (900-TC8, 900-TC16)
Conditions of Use: Heater Burnout (HBA), Heater Short (HSA) alarms and
heater overcurrent detection must be supported. Alarm 1 must be assigned.
The HS Alarm parameter must be set to ON. A single CT must be wired to the
controller.
Function: This parameter allows you to configure the current value in amps
(A) at which the Heater Short Alarm (HSA) output parameter becomes active
(ON).
Configurable Range Units Default Value
0.0…50.0 A (Amps) 0.0
hb2
hs1