Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 242)

Publication 900-UM007D-EN-E - January 2011
5-14 Parameter Functions & Definitions
Table 5.O
• HS alarm is not detected if the Control Output (heating) OFF time is
100 ms or less.
• ffff
is displayed when 55.0 A is exceeded.
• If an HS alarm 1 alarm is output, the HA indicator will light and the No.
1display for the leakage current 1 monitor will flash.
Related Parameters
Refer to the Advanced Setting function group:
• HS Alarm 1, HS Alarm 2 (page 5-31)
• Failure Detection (page 5-88)
• Error Displays
lcr1
(Chapter 6, page 6-5)
Leakage Current 2 Monitor
(900-TC8 &900-TC16)
Conditions of Use: Heater Burnout (HBA), Heater Short (HSA), and Heater
Overcurrent (HOA) alarms must be supported and two CTs (Number 1 and
Number 2) wired to the controller. Alarm 1 must be assigned. The HS Alarm
Use parameter must be set to ON.
Function: This parameter measures and displays the heater current from two
CT inputs used for detecting short-circuit conditions in 3-phase heaters.
This parameter measures and displays the heater current value.
• HS alarm is not detected if the Control Output (heating) OFF time is
100 ms or less.
• ffff is displayed when 55.0 A is exceeded.
• If an HS alarm 2 alarm is output, the HA indicator will light and the No.
1display for the leakage current 2 monitor will flash.
Monitoring Range Units
0.0…55.0 A (Amps)
Table 5.P
Monitoring Range Units
0.0…55.0 A (Amps)
lcr2