Omron E5AN-H User Manual page 253

Initial Setting Level
Note
See
See
232
Set values Alarm type
9 Absolute-value lower-limit
10 Absolute-value upper-
limit with standby
sequence
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.)
15 Remote SP absolute
value lower limit (See
note 6.)
(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 Case 2
L H SP
H < 0, L > 0
|H| < |L|
(3) Set value: 4 (Lower limit range)
Case 1 Case 2
L H SP
H < 0, L > 0
|H| < |L|
(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 normal-
ly OFF if upper- and lower-limit hysteresis overlaps.
• In case 3, the alarm is always OFF.
(5) Set value: 5 (The alarm is always OFF if upper- and lower-limit alarm hys-
teresis with standby sequence overlaps.)
(6) Displayed when remote SP input is supported.
• 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).
■ Related Parameters
Bank * alarm value upper limit 1, Bank * alarm value lower limit 1 (bank setting
level): Page 212
Standby sequence reset: Page 244, Auxiliary output 1 open in alarm: Page
245, Alarm 1 hysteresis: Page 233, Alarm 1 latch: Page 250 (advanced func-
tion setting level)
When alarm value X
is positive
ON
OFF
0
ON
OFF
0
ON
OFF
0
---
---
ON
OFF
0
ON
OFF
0
Case 3 (Always ON)
H SP L
SP L H
H > 0, L < 0
H L SP
|H| > |L|
SP H L
Case 3 (Always OFF)
H SP L
SP L H
H > 0, L < 0
|H| > |L|
H L SP
SP H L
Section 5-9
Alarm output operation
When alarm value X
is negative
X
X
ON
OFF
0
X
X
ON
OFF
0
X
X
ON
OFF
0
X
X
ON
OFF
0
X
X
ON
OFF
0
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|