232
Initial Setting Level Section 5-9
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)
(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 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)
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.)
Set values Alarm type Alarm output operation
When alarm value X
is positive
When alarm value X
is negative
ON
OFF
X
0
ON
OFF
X
0
X
ON
OFF
0
X
ON
OFF
0
ON
OFF
X
0
ON
OFF
X
0
X
ON
OFF
0
X
ON
OFF
0
ON
OFF
X
0
ON
OFF
X
0
LH
H < 0, L > 0
|H| < |L|
SP
LH
H > 0, L < 0
|H| > |L|
SP
LH
H < 0, L < 0
SP
LH
H < 0, L > 0
|H|
≥ |L|
SP
LH
H > 0, L < 0
|H| ≤ |L|
SP
Case 3 (Always ON)Case 2Case 1
LH
H < 0, L > 0
|H| < |L|
SP
HL
H > 0, L < 0
|H| > |L|
SP
LH
H < 0, L < 0
SP
L
L
H
H
H < 0, L > 0
|H| ≥ |L|
SP
SP
H > 0, L < 0
|H| ≤ |L|
Case 3 (Always OFF)
Case 2Case 1
See
See
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