omron — Setting Temperature Alarms

Simplicity on the Worksite Solutions Guide for FAQs: E5CC/E5EC Setting Temperature Alarms Select from the table on page 4-3. ● Alarm linked to the set point 2. Do you need to If the set point is changed, the set value of the alarm will also change. link the alarm Set this difference. temperature to the set point? Linked Alarm point → Set the difference (deviation) between the set point and alarm point. SP ● Alarm not linked to the set point The actual temperature at which the alarm is output is set. Fixed Alarm point → Set the absolute temperature at which the alarm is output. 0 Select from the table on page 4-3. 3.

● Alarm not required when the power is turned ON Do you need an alarm when the power is turned ON? Example: Alarm point for lower-limit alarm Temperature → Standby Sequence Power ON Time Alarm output turns ON second time temperature goes below alarm point. Lower-limit alarm ● Alarm also required when power is turned ON Temperature is below alarm point, but alarm output does not turn ON. What Is a Standby Sequence For? Particularly with a lower-limit alarm, the temperature is often below the alarm point when temperature control is started. In this case, an alarm would be output at the start of operation. To prevent this, a standby sequence is used to disable the first alarm.

Temperature Setting Temperature Alarms Example: Alarm point for lower-limit alarm → No Standby Sequence Power ON Time Lower-limit alarm output Alarm output turns ON because temperature is below alarm point when power turns ON. In the default settings, the standby sequence is restarted (and the alarm is turned OFF) when operation is started, when the SP is changed, or when the alarm temperature is changed. You can change the conditions for restarting the standby sequence. For details, refer to the E5CC/E5EC Digital Temperature Controllers User's Manual (Cat. No. H174). 4-2 Simplicity on the Worksite Solutions Guide for FAQs: E5CC/E5EC