Yokogawa EJX930A - Manual (Page 62)

<9. Maintenance>
9-10
IM 01C25R01-01E
9.5.3 Alarms and Countermeasures
Table 9.3 Alarm Message Summary (HART protocol type)
Integral
indicator
HART communicator
display
Cause
4-20mA Output
operation during error
Countermeasure Status
group
AL. 01
CAP.ERR
P sensor error Sensor problem. Outputs the signal (High or
Low) set with burnout direction
switch.
[status output: undefined]
Replace capsule if
the error recurs after
the transmitter is
restarted.
1
CT sensor error Capsule temperature
sensor problem.
Replace capsule.
Cap EEPROM error Capsule EEPROM
problem.
AL. 02
AMP.ERR
AT sensor error Amplifier temperature
sensor problem.
Replace amplifier.
Amp EEPROM error Amplifier EEPROM
problem.
CPU board error Amplifier problem. 2
AD Converter error A/D Converter problem.
4 AL. 03
ET.ERR
ET sensor error External temperature
sensor disconnection.
Check external
temperature sensor.
—
No device ID No device ID is found. Continues to operate and
output.
2
AL. 10
PRESS
P outside limit Input is outside
measurement range limit of
capsule.
When PV is Pres
Output AO upper limit or AO
Lower limit.
Check input or
replace capsule when
necessary.
3
AL. 11
ST. PRSS
SP outside limit Static pressure exceeds
limit.
When PV is SP
Output AO upper limit or AO
Lower limit.
AL. 12
CAP.TMP
CT outside limit 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 Amplifier temperature
is outside range (–50 to
95°C).
AL. 14
EXT. TMP
ET outside limit External temperature is
outside range.
When PV is ET
Output AO upper limit or AO
Lower limit.
AL. 15
EXT. TMP
OHM outside limit External temperature
sensor resistance is out
specification.
AL. 16 PLS PLS outside limit Pulse output is out
specification.
Continues to operate and
output.
Check settings and
change them.
AL. 30
PRS.RNG
P over range Differential pressure
exceeds specified range.
When PV is Pres.
Outputs the signal (High or
Low) set with burnout direction
switch.
Low:–1.25%, High:110%
Check input and
range setting, and
change them as
needed.
AL. 31
SP. RNG
SP over range Static pressure exceeds
specified range.
When PV is SP
Outputs the signal (High or
Low) set with burnout direction
switch.
Low:–1.25%, High:110%
4
AL. 32
F. RNG
F over range Flow exceeds specified
range.
When PV is Flow
Outputs the signal (High or
Low) set with burnout direction
switch.
Low:–1.25%, High:110%
AL. 33
ET. RNG
ET over range External temperature
exceeds specified range.
When PV is ET
Outputs the signal (High or
Low) set with burnout direction
switch.
Low:–1.25%, High:110%