Alarm Values - Omron E5C User Manual

4 Basic Operation
*9 When heating/cooling control is performed, the MV absolute-value upper-limit alarm functions only for
the heating operation and the MV absolute-value lower-limit alarm functions only for the cooling
operation.
*10 This value is displayed only when a remote SP input is used. It functions in both Local SP Mode and
Remote SP Mode.
• If the Controller is equipped with HB/HS alarm detection, the Alarm 1 Type is not displayed for the
default settings. To use alarm 1, set an output assignment to alarm 1. (Refer to 4-6-3 Assigned
Output Functions (Assigning Control Outputs Is Not Supported for Position-proportional Models.).)

4-10-2 Alarm Values

Alarm Lower
al1l
Limit Value
al2l
al3l
al4l
al1h
Alarm Upper
Limit Value
al2h
al3h
al4h
al-1
Alarm Value
al-2
al-3
al-4
This procedure sets alarm 1 as an upper-limit alarm. The alarm is output when the process value (PV)
exceeds the set point (SP) by 10°C. (In this example, the temperature unit is °C.)
Alarm 1 type = 2 (Upper-limit alarm)
Alarm value 1= 10
Operating Procedure
• Selecting the Alarm 1 Type
1
Press the M Key several times in the Initial Setting Level to
display alt1 (Alarm 1 Type).*
2
Press the U or D Key to set the set value to 2.
The default is 2 (upper-limit alarm).
4 - 34
• Alarm values are indicated by "X" in the table on the previous page. When the
upper and lower limits are set independently, "H" is displayed for upper limit
values, and "L" is displayed for lower limit values.
• To set the alarm value upper and lower limits for deviation, set the upper and
lower limits in each of the Alarm 1 to 4 Upper Limit, and Alarm 1 to 4 Lower
Limit parameters in the Operation Level.
Initial Setting Level
alt1
alt1
E5@C Digital Temperature Controllers User's Manual (H174)
Alarm 1 Type
2
2