Yokogawa AXFA14G/C - Manual (Page 55)

IM 01E20C02-01E 6-26
6. PARAMETER DESCRIPTION
(6) Menu G: Alarm Setting items
(Refer to Section 6.5: Alarm Functions for more
details.)
Menu G principally contains setting items relevant to
alarms.
[G10: Low Alarm] Low alarm setting
This parameter sets the low limit (L) alarm value, and
this is done using a % value of the maximum span.
᭹ A setting value of -110% indicates that the alarm is
disabled.
[G11: High Alarm] High alarm setting
This parameter sets the high limit (H) alarm value, and
this is done using a % value of the maximum span.
᭹ A setting value of 110% indicates that the alarm is
disabled.
[G12: Low Low Alarm] Low-low alarm setting
This parameter sets the low-low limit (LL) alarm
value, and this is done using a % value of the maxi-
mum span.
᭹ A setting value of -110% indicates that the alarm is
disabled.
[G13: High High Alarm] High-high alarm setting
This parameter sets the high-high limit (HH) alarm
value, and this is done using a % value of the maxi-
mum span.
᭹ A setting value of 110% indicates that the alarm is
disabled.
NOTE
Setting of -110% or 110% results in the corre-
sponding function being disabled; accordingly,
settings can be combined to implement only high
alarms or low alarms, etc.
Output Example 1
The high-high alarm (HH) is set to 90% or more of the
flow rate span; the low-low alarm (LL), to 20% or less;
the high alarm (H), to 80% or more; and the low alarm
(L), to 30% or less.
Settings are:
G10: Low Alarm = 30%
G11: High Alarm = 80%
G12: Low Low Alarm = 20%
G13: High High Alarm = 90%
0 Time (t)
Select “H/L Alarm(O)” for F20: DO Function
Select “HH/LL Alarm(O)” for F21: DIO Function
Select “Closed (On) Act” for F22: DO Active Mode
Select “Closed/Short Act” for F23: DIO Active Mode
H L
HH
DO
DIO
LL
High High Alarm
High Alarm
Instantaneous flow rate
Low Alarm
Low Low Alarm
20
30
50
80
90
100
[%]
F0608.EPS