Yokogawa AXFA14G/C - Manual (Page 58)

IM 01E20C02-01E 6-29
6. PARAMETER DESCRIPTION
[G33: Alm-HH/LL] Alarm recognition of “HH/LL Alarm”
(Refer to the descriptions of G12 and G13 for more
details regarding HH and LL alarms.)
This parameter specifies whether HH/LL alarm in
process alarms will be recognized as an alarm.
Setting Function
No
Yes
T0633.EPS
Not recognized as an alarm
Recognized as an alarm
NOTE
To set “HH/LL Alarm” as an alarm, it is necessary to
set “HH/LL Alarm(O)” according to F20: DO Func-
tion or F21: DIO Function, and set G12: Low Low
Alarm or G13: High High Alarm as well.
[G34: Alm-Adhesion] Alarm recognition of “Adhe-
sion Alarm”
This parameter specifies whether the electrode adhe-
sion alarm in process alarms will be recognized as an
alarm.
Setting Function
No
Yes
T0634.EPS
Not recognized as an alarm
Recognized as an alarm
NOTE
The AXFA14 or the AXF integral flowmeter has
three different type of alarm (i.e., system alarms,
process alarms, and setting alarms). For setting
alarms and process alarms, settings are made
with G30, G31, G32, G33 and G34 to specify
whether these will be recognized as an alarm.
Refer to Section 6.5: Alarm Functions for more
details regarding the content of each alarm and
the effect of alarm recognition on output.
[G40: Operation Time] Display of operation time
This parameter is used to display the operation time.
The operation time is the total time that is counted
while the device works actually.
When the power supply is off, the operation time is not
counted.
For example, “1D23:45” indicates an operation time of
1 day, 23 hours, and 45 minutes.
IMPORTANT
Use this value as a rough guideline because the
operation time has an error.
[G41: Alm Record1] Alarm record1
This parameter is used to display the most-recent
alarm, and the alarms that can be displayed are as
follows.
Alarm Items
T0635.EPS
Item Description
15 : Coil Open
16 : EEPROM Dflt
14 : A/D(Z) Fault
18 : Power off
28 : WDT
19 : Inst Pwr Fail
12 : A/D(H) Fault
No issuing of alarms
Microprocessor (CPU) failure
30 : Sig Overflow
: 16 space characters
(i.e., no display)
10 : uP Fault
11 : EEPROM Fault
13 : A/D(L) Fault
Flowtube coil is open-circuit
31 : Empty Pipe
A/D converter failure (detection of adhesion)
A/D converter failure (at low frequency side)
EEPROM failure
A/D converter failure (at high frequency
Power supply is off.
EEPROM returns to default values
Instantaneous power fail for tens of
milliseconds.
After this fail is released, outputs reach
the previous value immediately.
33 : Adhesion Alm
Flowtube is not filled with fluid
Insulation adhered to electrode
The return from excessive instantaneous
noise.
After the noise is released, output return
the normal condition.
Input signal error
NOTE
Records for “30: Sig Overflow” are kept only
when G31 specifies that this condition is to be
recognized as an alarm (i.e., “Yes” is selected).
Records for “31: Empty Pipe” are kept only when
G32 specifies that this condition is to be recog-
nized as an alarm (i.e., “Yes” is selected).
Records for “33: Adhesion Alm” are kept only
when G34 specifies that this condition is to be
recognized as an alarm (i.e., “Yes” is selected).
[G42: Alm Record Time1] Display the operation
time of alarm record1
This parameter is used to display the operation time at
which the alarm indicated by G41: Alm Record1
was occurred. For example, “1D23:45” indicates that
an alarm was occured at the operation time of 1 day,
23 hours, and 45 minutes.
IMPORTANT
Use these values as a reference because the
time of alarm records (1 to 4) have an error.
[G43: Alm Record2] Alarm record2
This parameter is used to display the second most-
recent alarm, and the alarms that can be displayed are
the same as those for G41: Alm Record1.
[G44: Alm Record Time2] Display the operation
time of alarm record2
This parameter is used to display the operation time at
which the alarm indicated by G43: Alm Record2
was occurred. For example, “1D23:45” indicates that
an alarm was occured at the operation time of 1 day,
23 hours, and 45 minutes.