Yokogawa EJX930A User Manual
Page 74
<4. Diagnostics>
4-24
IM 01C25R02-01E
Integral
indicator
HART configuration
tool display
Cause
4-20mA Output
operation during error
Countermeasure
Status
group
*
1
Diagnostic
List
group *
2
AL. 30
PRS.RNG
P over range *
1
Pressure Over Range
*
2
Differential pressure
exceeds specified range.
When PV is Pres.
Output AO upper limit or
lower limit.
(Refer to subsection 3.3.1)
Check input and
range setting, and
change them as
needed.
4
Tr
an
sd
uc
er
S
ta
tu
s
AL. 31
SP. RNG
SP over range *
1
Static Pressure Over
Range *
2
Static pressure exceeds
specified range.
When PV is SP
Output AO upper limit or
lower limit.
(Refer to subsection 3.3.1)
AL. 32
F. RNG
F over range *
1
Flow Over Range *
2
Flow exceeds specified
range.
When PV is Flow
Output AO upper limit or
lower limit.
(Refer to subsection 3.3.1)
AL. 33
ET. RNG
ET over range *
1
External Temp Over
Range *
2
External temperature
exceeds specified range.
When PV is ET
Output AO upper limit or
lower limit.
(Refer to subsection 3.3.1)
AL. 35 P.HI P high alarm *
1
Pressure High Alarm *
2
Input pressure exceeds
specified threshold.
Continues to operate and
output.
Check input.
5
AL. 36 P.LO P low alarm *
1
Pressure Low Alarm *
2
AL. 37
SP.HI
SP high alarm *
1
Static Pressure High
Alarm *
2
Input static pressure
exceeds specified
threshold.
AL. 38
SP.LO
SP low alarm *
1
Static Pressure Low
Alarm *
2
AL. 41 F.HI F high alarm *
1
Flow High Alarm *
2
Input flow exceeds
specified threshold.
8
AL. 42 F.LO F low alarm *
1
Flow Low Alarm *
2
AL. 43
ET.HI
ET high alarm *
1
External Temp High
Alarm *
2
Input external
temperature exceeds
specified threshold.
AL. 44
ET.LO
ET low alarm *
1
External Temp Low
Alarm *
2
AL. 50
P. LRV
Illegal P LRV *
1
Illegal Pressure LRV
*
2
Specified value is outside
of setting range.
Holds at the output value
that existed immediately
before the error occurred.
Check settings and
change them as
needed.
6
C
on
fig
ur
at
io
n
AL. 51
P. URV
Illegal P URV *
1
Illegal Pressure URV
*
2
AL. 52
P. SPN
Illegal P SPAN *
1
Illegal Pressure SPAN
*
2
AL. 53
P. ADJ
P SPAN trim err *
1
Pressure SPAN Trim
Error *
2
Continues to operate and
output.
Adjust settings and
change them as
needed.
P ZERO trim err *
1
Pressure ZERO Trim
Error *
2
AL. 54
SP. RNG
Illegal SP LRV *
1
Illegal Static Pressure
LRV *
2
Holds at the output value
that existed immediately
before the error occurred.
Check settings and
change them as
needed.
Illegal SP URV *
1
Illegal Static Pressure
URV *
2
Illegal SP SPAN *
1
Illegal Static Pressure
SPAN *
2
*1: DD (HART 5/HART 7), DTM (HART 7)
*2: DTM (HART 5)
*3: Available only for HART 7