Omron E5 J Series - Alarm Configuration Options; Alarm Mode Selector Functions; Deviation vs. Absolute Alarms

E5jJ
E5jJ
9
Alarm Mode Selectors (ALM1, ALM2)
Alarm modes, listed in the following table, can be selected using this switch. The switch is factory-set to position 2, i.e., the upper-limit alarm
mode.
Switch Mode Alarm output Setting range
setting Alarm operation When X is positive When X is negative
0 No alarm OFF ---
1 Upper- and lower-limit alarm
(deviation)
XX
ON
OFF
SP
Always ON –1999 to 9999, or –199.9 to 999.9
(The decimal position varies with
the input type.)
2 Upper-limit alarm (deviation)
X
SP
X
SP
3 Lower-limit alarm (deviation)
X
SP
X
SP
4 Upper- and lower-limit alarm
(deviation)
XX
SP
Always OFF
5 Upper- and lower-limit alarm with
standby sequence (deviation)
XX
SP
Always OFF
6 Upper-limit alarm with standby
sequence (deviation)
X
SP
X
SP
7 Lower-limit alarm with standby
sequence (deviation)
X
SP
X
SP
8 Absolute-value upper-limit alarm
0°C/°F
X
0°C/°F
X
9 Absolute-value lower-limit alarm
0°C/°F
X
0°C/°F
X
Deviation Alarm
If the alarm mode selector is set to a number between 1 to 7, alarm
values are set to the width deviated from the set point as shown in
the following illustration.
Set point (SP)
100°C/°F
Alarm value
10°C/°F
110°C/°F
Absolute Alarm
If the alarm mode selector is set to 8 or 9, alarm values are set to the
absolute value based on 0 °C/° F as shown in the following illustra -
tion.
0°C/°F
Alarm value
110°C/°F
110°C/°F