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3.4 Setting Alarm Type
J Alarm type
J Alarm value
• 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"
parameter settings.
• The contact conditions 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
controller and their respective operations.
Alarm Type
Alarm Type
Upper-and lower-limit alarm
1
(deviation)
2
Upper-limit alarm (deviation)
3
Lower-limit alarm (deviation)
Upper-and-lower-limit range
4
alarm (deviation)
Upper-and-lower-limit alarm
5
with standby sequence
(deviation)
Upper-limit alarm with
6
standby sequence (deviation)
Lower-limit alarm with
7
standby 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). Factory setting is "2: Upper-limit alarm
(deviation)".
• 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 set independently for each alarm in the "alarm
value 1 to 3" parameters (level 1 mode). Factory setting is "0".
3.4 Setting Alarm Type
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
3--9
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