Setting Alarm Type; Alarm Type - Omron E5EK PROGRAMMABLE TYPE User Manual

CHAPTER 3 BASIC OPERATION

3.4 Setting Alarm Type

J Alarm type
J Alarm value
3--10
• Three alarm outputs are supported: alarms 1 to 3. Of these, only the
alarm assigned as the output can be used.
• Alarm output conditions are determined according to the combina-
tion of the "alarm type", "alarm value" and "alarm hysteresis" pa-
rameter settings.
• The contact conditions for when alarm output is ON can be set to
"open" or "closed" in the "close in alarm/open in alarm" parameter.
• The following table shows the alarm types supported by the E5EK-T
controller and their respective operations.

Alarm Type

Alarm Type
Upper-and lower-limit alarm
1
(deviation)
Upper-limit alarm
2
(deviation)
Lower-limit alarm
3
(deviation)
Upper-and-lower-limit range
4
alarm
(deviation)
Upper-and-lower-limit alarm
5
with standby sequence
(deviation)
Upper-limit alarm with stand-
6 by sequence
(deviation)
Lower-limit alarm with stand-
7
by sequence
(deviation)
Absolute-value upper-limit
8
alarm
Absolute-value lower-limit
9
alarm
Absolute-value upper-limit
10
alarm with standby sequence
Absolute-value lower-limit
11
alarm with standby sequence
• Alarm types are set independently for each alarm in the "alarm 1 to
3" parameters (setup mode). Default is "2: Upper-limit alarm (devi-
ation)".
• Alarm values are indicated by "X" in the table above. Alarm output
operation differs according to whether the value of the alarm is posi-
tive or negative.
• Alarm values are built into the program and are set for each pattern.
For details, see 3.5 Setting Patterns" (page 3-14).
Alarm Output Operation
When X is positive When X is negative
X X
ON
Always ON
OFF
SP
X
ON ON
OFF
OFF
SP
X
ON
ON
OFF
OFF
SP
X X
ON
Always OFF
OFF
SP
X X
ON
Always OFF
OFF
SP
X
ON ON
OFF OFF
SP
X
ON
ON
OFF OFF
SP
X
ON ON
OFF OFF
0
X
ON
ON
OFF
OFF
0
X
ON ON
OFF
OFF
0
X
ON
ON
OFF
OFF
0
X
SP
X
SP
X
SP
X
SP
X
0
X
0
X
0
X
0