Alarm Types - Omron E5 Z Series Manual

Alarm Types

Select the alarm type from the 12 types listed in the following table.
Set Value
0 Alarm function OFF
1 (See note 1.) Upper- and lower-limit (deviation)
2 Upper-limit (deviation)
3 Lower-limit (deviation)
4 (See note 1.) Upper- and lower-limit range (deviation)
5 (See note 1.) Upper- and lower-limit with standby se-
quence (deviation)
6 Upper-limit with standby sequence (de-
viation)
7 Lower-limit with standby sequence (de-
viation)
8 Absolute-value upper-limit
9 Absolute-value lower-limit
10 Absolute-value upper-limit with standby
sequence
11 Absolute-value lower-limit with standby
sequence
Note 1: With set values 1, 4 and 5, the upper and lower limit values
can be set independently for each alarm type, and are ex-
pressed as "L" and "H."
Following operations are for cases when an alarm set point
is "X" or negative.
2: Set value: 1, Upper- and lower-limit alarm
Case 1 Case 2
3: Set value: 4, Upper- and lower-limit range
Case 1 Case 2
L H
4: Set value: 5, Upper- and lower-limit with standby sequence
Case 1 Case 2
Same as for the upper- and lower-limit
alarm. However, when the upper-limit
and lower-limit hysteresis overlaps:
Always OFF
Alarm Type
Output OFF
Case 3 (Always ON)
=
=
Case 3 (Always OFF)
=
=
Example
Digital Temperature Controllers
Alarm Output Operation
When X is positive
(See note 5.)
5: Set value: 5, Upper- and lower-limit with standby sequence
alarm. Always OFF when the upper-limit and lower-limit hys-
teresis overlaps.
Set the alarm types for alarm 1 and alarm 2 independently in
the initial setting level. The default setting is 2 (upper limit).
With the E5AZ/E5EZ, perform settings similarly for alarm 3.
Example: When the alarm is set ON at 110°C/°F or higher.
When an alarm type other
than the absolute-value
alarm is selected
(For alarm types 1 to 7)
The alarm value is set as a
deviation from the set point.
Alarm value
Set point
100°C/°F
E5AZ/E5EZ/E5CZ
When X is negative
(See note 2.)
(See note 3.)
(See note 4.)
When the absolute-value
alarm is selected
(For alarm types 8 to 11)
The alarm value is set as
an absolute value from the
alarm value of 0°C/F.
Alarm value
0°C/°F
23