E5CNH E5AN-H E5EN-H Digital Controllers User's Manual - OMRON

Alarm Outputs Section 3-9
68
Set value Alarm type Alarm output operation
11 Absolute-value lower-limit
with standby sequence
12 LBA (alarm 1 type only) ---
13 PV change rate alarm ---
14 Remote SP absolute
value upper limit (See
note 6.)
ON
OFF
15 Remote SP absolute
value lower limit (See
note 6.)
ON
OFF
Note (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)
L H SP SP L H
H < 0, L > 0
|H| < |L|
(3) Set value: 4 (Lower limit range)
(4) Set value: 5 (Upper- and lower-limit with standby sequence)
For the lower-limit alarms in cases 1 and 2 above, the alarm is always
OFF if upper- and lower-limit hysteresis overlaps.
In case 3, the alarm is always OFF.
When alarm value X
is positive
ON
OFF
Case 1 Case 2 Case 3 (Always ON)
H > 0, L < 0
|H| > |L|
(5) Set value: 5 (Upper- and lower-limit with standby sequence)
The alarm is always OFF if upper- and lower-limit hysteresis overlaps.
(6) Displayed when remote SP input is used.
H
H
SP
L SP
SP H
When alarm value X
is negative
Set the alarm type independently for each alarm in the Alarm 1 to 3 Type
parameters in the initial setting level. The default is 2 (Upper-limit alarm).
L
0
0
0
L
X
X
X
H < 0, L < 0
H < 0, L > 0
|H| ≥ |L|
H > 0, L < 0
|H| ≤ |L|
Case 1 Case 2 Case 3 (Always OFF)
H < 0, L < 0
L H SP SP L H
H SP L
H < 0, L > 0 H > 0, L < 0
H < 0, L > 0
|H| < |L|
|H| > |L|
H L SP
|H| ≥ |L|
SP H L
H > 0, L < 0
|H| ≤ |L|
ON
OFF
ON
OFF
ON
OFF
X
X
X
0
0
0