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Watlow 12LS Controller User Manual

Page 63

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4.5.5.4 DEVIATION BAND ALARM

This menu is used to set the deadband alarm value. The deviation alarm is a plus and minus alarm that is always
relative to the setpoint. If the setpoint changes the actual alarm points also change. A separate digital output may be
assigned to the high deviation alarm and the low deviation alarm.

To edit the deviation alarm bandwidth the display will appear as:
|----------------|
¦LL DEV. ALARM ¦
¦ VALUE ? xxx ¦
|----------------|

Press YES to select the menu or NO to advance to the next menu.

Press UP and DOWN to adjust the deviation alarm band value from 0 to 255.

Press ENTER to store the setting or press BACK to return to the SETUP LOOP ALARMS main menu prompt.

4.5.5.5 DEVIATION ALARM STATUS

This menu is used to program the deviation alarm status to OFF or ON. Setting the status to OFF disables the alarm
function and setting it to ON enables it. The display appears as:
|----------------|
¦LL DEV. ALARM ¦
¦ STATUS ? xxx ¦
|----------------|

Press YES to select the menu or NO to advance to the next menu.

Press UP and DOWN to toggle the choice between OFF and ON.

Press ENTER to store the alarm status or press BACK to return to the SETUP LOOP ALARMS main menu prompt.

4.5.5.6 HIGH DEVIATION ALARM OUTPUT ASSIGNMENT

This menu is used to assign a digital output to be activated in the event of a high deviation alarm. Any of the 9
available digital outputs may be used or the output function may be turned OFF. The display appears as:
|----------------|
¦LL HI DEV. ALARM¦
¦OUTPUT NR ? xx ¦
|----------------|

Press YES to select the menu or NO to advance to the next menu.

Press UP and DOWN to step through the output assignment choices.