3 alarms and countermeasures, Alarms and countermeasures -24 – Yokogawa EJX115A User Manual
Page 71
<4. Diagnostics>
4-24
IM 01C25T01-06EN
4.3 Alarms and Countermeasures
Table 4.5
Alarm Message Summary
Integral
indicator
HART configuration
tool display
Cause
4-20mA Output
operation during error
Countermeasure
Status
group
*
1
Diagnostic
List
group *
2
AL. 01
CAP.ERR
P sensor error *
1
Pressure Sensor
Error *
2
Sensor problem.
Outputs the signal (High
or Low) set with burnout
direction switch.
[status output: undefined]
(About the output signal,
refer to subsection 3.3.9)
Replace capsule if
the error recurs after
the transmitter is
restarted.
1
H
ar
dw
ar
e
Fa
ilu
re
CT sensor error *
1
Capsule Temperature
Sensor Error *
2
Capsule temperature
sensor problem.
Replace capsule.
Cap EEPROM error *
1
Capsule EEPROM
Error *
2
Capsule EEPROM
problem.
AL. 02
AMP.ERR
AT sensor error *
1
Amp Temp Sensor
Error *
2
Amplifier temperature
sensor problem.
Replace amplifier.
Amp EEPROM error *
1
Amp EEPROM Error
*
2
Amplifier EEPROM
problem.
CPU board error *
1
CPU Board Error *
2
Amplifier problem.
2
—
No device ID *
1
No Device ID *
2
No device ID is found.
Continues to operate and
output.
Replace amplifier.
2
AL. 10
PRESS
P outside limit *
1
Pressure Outside
Limit *
2
Differential pressure is
outside measurement
range limit of capsule.
When PV is Pres
Output AO upper limit or
AO Lower limit. (Refer to
subsection 3.3.1)
Check input or
replace capsule
when necessary.
3
Tr
an
sd
uc
er
S
ta
tu
s
AL. 11
ST. PRSS
SP outside limit *
1
Static Pressure
Outside Limit *
2
Static pressure exceeds
limit.
When PV is SP
Output AO upper limit or
AO Lower limit. (Refer to
subsection 3.3.1)
AL. 12
CAP.TMP
CT outside limit *
1
Cap Temp Outside
Limit *
2
Capsule temperature is
outside range (–50 to
130°C).
Continues to operate and
output.
Use heat insulation
or make lagging to
keep temperature
within range.
AL. 13
AMP.TMP
AT outside limit *
1
Amp Temp Outside
Limit *
2
Amplifier temperature
is outside range (–50 to
95°C).
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
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. 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
*1: DD and DTM (excluding EJX HART 5 DTM based on FDT1.2)
*2: EJX HART 5 DTM based on FDT1.2
*3: Available only for HART 7