Alarm Outputs - Omron E5AN-H Manual

Alarm Outputs

Each alarm can be independently set to one of the following 15 alarm types. The default is 2: Upper limit.
Auxiliary outputs are allocated for alarms. ON delays and OFF delays (0 to 999 s) can also be specified.
Note: For models with heater burnout, SSR failure, and heater overcurrent detection, alarm 1 will be an OR output of the alarm selected from the
following alarm types and the alarms for heater burnout, SSR failure, and heater overcurrent. To output only a heater burnout alarm, SSR
failure alarm, and heater overcurrent alarm for alarm 1, set the alarm type to 0 (i.e., no alarm function).
Set
val- Alarm type
ue
Alarm function
0
OFF
1 Upper- and lower-
✽1 limit
2 Upper limit
3 Lower limit
Upper- and lower-
4
limit range
✽1
Upper- and lower-
5
limit with standby
✽1
sequence
Upper-limit with
6 standby
sequence
Lower-limit with
7 standby
sequence
Absolute-value
8
upper-limit
Absolute-value
9
lower-limit
Absolute-value
upper-limit with
10
standby
sequence
Absolute-value
lower-limit with
11
standby
sequence
LBA (for alarm 1
12
only)
PV change rate
13
alarm
RSP absolute
14 value upper limit
✽6
RSP absolute
15 value lower limit
✽6
Downloaded from Elcodis.com electronic components distributor
Alarm output operation
When X is When X is
positive negative
Output OFF
L H
ON
✽2
OFF
SP
X X
ON ON
OFF OFF
SP SP
X X
ON ON
OFF OFF
SP SP
L H
ON
✽3
OFF
SP
L H
ON
✽4
OFF
SP
✽5
X X
ON ON
OFF
OFF
SP SP
X X
ON ON
OFF OFF
SP SP
X X
ON
ON
OFF OFF
0
X X
ON ON
OFF OFF
0
X X
ON ON
OFF OFF
0
X X
ON ON
OFF OFF
0
---
---
X X
ON
ON
OFF OFF
0
X X
ON ON
OFF
OFF
0
Advanced Digital Temperature Controller
✽1.With set values 1, 4 and 5, the upper and lower limit values can be
set independently for each alarm type, and are expressed as "L"
and "H."
✽2. Set value: 1, Upper- and lower-limit alarm
Case 1
L H SP
H < 0, L > 0
⏐H⏐ < ⏐L⏐
✽3. Set value: 4, Upper- and lower-limit range
Case 1
L H SP
H < 0, L > 0
⏐H⏐ < ⏐L⏐
✽4. Set value: 5, Upper- and lower-limit with standby sequence
For Upper- and Lower-Limit Alarm Described Above
• Case 1 and 2
Always OFF when the upper-limit and lower-limit hysteresis
overlaps.
• Case 3: Always OFF
✽5. Set value: 5, Upper- and lower-limit with standby sequence
Always OFF when the upper-limit and lower-limit hysteresis
0
overlaps.
✽6. Displayed when there is a remote SP input.
0
0
0
0
0
Case 2
Case 3 (Always ON)
H SP L
SP L H
H > 0, L < 0
H L SP
⏐H⏐ > ⏐L⏐
SP H L
Case 2
Case 3 (Always ON)
H SP L
SP L H
H > 0, L < 0
H L SP
⏐H⏐ > ⏐L⏐
SP H L
E5AN-H/E5EN-H
H < 0, L < 0
H < 0, L > 0
⏐H⏐ ≥ ⏐L⏐
H > 0, L < 0
⏐H⏐ ≤ ⏐L⏐
H < 0, L < 0
H < 0, L > 0
⏐H⏐ ≥ ⏐L⏐
H > 0, L < 0
⏐H⏐ ≤ ⏐L⏐
7