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Over Temp Stop
1. Over temp stop temperature, a safety feature, is added to the setpoint
(SP) temperature. If the PV temperature exceeds this amount, the Tem-
perature Controller will stop. Over temp stop does not operate if the COOL
control action is selected. Refer to Figure 34.
OVER TEMP. STOP
XX °F ABOVE SP
FIGURE 34. OVERTEMP SCREEN
2. To change the Overtemp value, use the arrow keys. After the value has
been set, press the MENU key to advance to the Loop Break Stop Screen.
Loop Break Stop
Loop break stop, a safety feature, is designed to stop the Temperature
Controller if the heater output is on for the amount of time set in Loop Break
Stop and the PV temperature does not increase more than 1.0 °F. If the
COOL control action is selected, it is stopped if the PV temperature does not
decrease more than 10°F. Refer to Figure 35.
Loop break stop is designed to terminate the process currently running if the
process is interrupted for a preset period of time. The loop break stop senses
that nothing is happening in the process and turns the process off.
Enter an elapsed time using the UP and DOWN arrow keys. For slow sys-
tems, a longer time should be entered.
LOOP BREAK STOP
XXX.X MINUTES
FIGURE 35. LOOP BREAK STOP SCREEN
