Alarm Mode Setting - Omron E5AJ-A2HB Operation Manual

Internal Switch Settings

2-3-3 Alarm Mode Setting

Selector Alarm mode
no.
0 No alarm function
1 Upper and lower limit
alarm (deviation)
2 Upper limit alarm
(deviation)
3 Lower limit alarm
(deviation)
4 Upper and lower limit
range alarm (deviation)
5 Upper and lower limit
alarm with standby
sequence (deviation)
6 Upper limit alarm with
standby sequence
(deviation)
7 Lower limit alarm with
standby sequence
(deviation)
8 Absolute value upper
limit alarm
9 Absolute value lower
limit alarm
ALM1 and ALM2 are both factory-set to 2 (upper limit alarm). Refer to the follow-
ing table for the selection of the desired alarm mode.
Alarm output
Positive alarm set
value
OFF
X X
SP
X
SP
X
SP
X X
SP
X X
SP
X
SP
X
SP
X
0
X
0
If the alarm mode switch is set to 1 to 7, the alarm value is set with the deviation
width from the set point as shown in the following diagram.
If the alarm mode switch is set to 8 or 9, the alarm value is set with the absolute
value from 0 C/ F as shown in the following diagram.
ALM2 ALM1
Negative alarm set
value
Always ON
X
SP
X
SP
Always OFF
Always OFF
X
SP
X
SP
X
0
X
0
Alarm value
10 C/ F
Set point (SP)
100 C/ F
Alarm value
110 C/ F
0 C/ F
Section 2-3
Setting range
---
–1999 to 9999 or –199.9
to 999.9 (the decimal
position varies with the
input type)
13