User Manual

153
Initial Setting Level Section 5-6
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.)
• 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
Alarm value 1: Page 124, Alarm value upper limit 1, Alarm value lower limit 1:
Page 126 (operation level)
Standby sequence reset: Page 161, Alarm 1 open in alarm: Page 162, Alarm
1 hysteresis: Page 163, Alarm 1 latch: Page 167 (advanced function setting
level)
10 Absolute-value upper-
limit with standby
sequence
11 Absolute-value lower-limit
with standby sequence
12 LBA (alarm 1 type only) ---
Set values Alarm type Alarm output operation
When alarm value X
is positive
When alarm value X
is negative
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