Publication 900-UM007D-EN-E - January 2011
Parameter Functions & Definitions
5-89
Heater Short Alarm (HSA) Latch
(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.
The HS Alarm parameter must be set to ON. Optional controller hardware
and/or support hardware (e.g., CTs) must be installed.
Function:
When the Alarm Latch parameter is set to ON, the HS alarm is
held until either of the following conditions is satisfied:
•
The HS alarm current is set to 50.0 A.
•
The controller power is turned OFF then back ON again (e.g., power is
reset).
•
The latch id canceled by the PF key (900-TC8 only). PF Setting = LAT:
Alarm Latch Cancel.
•
The latch is canceled by an event input (event input assignment 1 and 2
= LAT: Alarm Latch Cancel).
Note:
The Alarm output is also turned OFF when switching to the Initial
Setting function group, Communications Setting function group,
Advanced Setting function group, or Calibration function group.
Related Parameter
•
HS Alarm Use (Advanced Setting function group, page 5-88)
•
Event Input Assignment 1 and 2 (Initial Setting function group, page
5-66)
•
HB ON/OFF, PF Settings (Advanced Setting function group, page
5-74)
Heater Short Alarm (HSA) Hysteresis
(900-TC8, 900-TC16)
Conditions of Use:
Heater Burnout (HBA) and Heater Short Alarms (HSA)
must be supported. Alarm 1 must be assigned. The HSA parameter must be
set to ON. The HS Alarm Latch must be set to OFF. Optional controller
hardware and/or support hardware (e.g., CTs) must be installed.
Table 5.DF
Selections
Default
on
: Enabled,
off
: Disabled
off
hsl
hsh
Summary of Contents for Allen-Bradley 900-TC16
Page 1: ...USER MANUAL Bulletin 900 TC8 900 TC16 900 TC32 Series B Temperature Controllers...
Page 2: ...2...
Page 72: ...Publication 900 UM007D EN E January 2011 3 2 Configuration Basic Operation Figure 3 3 900 TC32...
Page 136: ...Publication 900 UM007D EN E January 2011 3 66 Configuration Basic Operation Notes...
Page 340: ...Publication 900 UM007D EN E January 2011 5 112 Parameter Functions Definitions Notes...
Page 350: ...Publication 900 UM007D EN E January 2011 6 10 Troubleshooting Error Indication Notes...
Page 406: ...Publication 900 UM007D EN E January 2011 D 8 Glossary Notes...