YOKOGAWA EJX Series, User Manual

Page: 39 / 52

<7. Errors and Countermeasures>
37
IM 01C25A01-01E
7. Errors and Countermeasures
NOTE
For HART protocol revision 7, F
OUNDATION
Fieldbus, and PROFIBUS PA communication types, please refer to manuals
in the attached CD-ROM.
The table below shows a summary of error messages for BRAIN and HART (protocol revision 5) protocols.
Table 7.1 Alarm Message Summary (Except EJX910A and EJX930A)
Indicator Cause
Output Operation
during Error
Countermeasure
None
AL. 01
CAP. ERR
Sensor problem. Outputs the signal (Hold, High, or
Low) set with parameter.
Replace capsule when error keeps
appearing even after restart.
Capsule temperature sensor problem.
Capsule EEPROM problem.
AL. 02
AMP. ERR
Amplifier temperature sensor problem. Outputs the signal (Hold, High, or
Low) set with parameter.
Replace amplifier.
Amplifier EEPROM problem.
Amplifier problem.
AL. 10
PRESS
Input is outside measurement range
limit of capsule.
Outputs high range limit value or low
range limit value.
Check input or replace capsule when
necessary.
AL. 11
ST. PRSS
Static pressure exceeds limit. Continues to operate and output.
AL. 12
CAP. TMP
Capsule temperature is outside range
(–50 to 130°C).
Use heat insulation or make lagging
to keep temperature within range.
AL. 13
AMP. TMP
Amplifier temperature is outside range
(–50 to 95°C).
AL. 30
RANGE
Output is outside upper or lower range
limit value.
Outputs high range limit value or low
range limit value.
Check input and range setting, and
change them as needed.
AL. 31
SP. RNG
Static pressure exceeds specified
range.
Holds output immediately before error
occurred.
AL. 35 *
1
P. HI
Input pressure exceeds specified
threshold.
Continues to operate and
output.
Check input.
AL. 36 *
1
P. LO
AL. 37 *
1
SP. HI
Input static pressure exceeds specified
threshold.
AL. 38 *
1
SP. LO
AL. 39 *
1
TMP. HI
Detected temperature exceeds
specified threshold.
AL. 40 *
1
TMP. LO
AL. 50
P. LRV
Specified value is outside of setting
range.
Holds output immediately before error
occurred.
Check setting and change them as
needed.
AL. 51
P. URV
AL. 52
P. SPN
AL. 53
P. ADJ
Continues to operate and output. Check input.
AL. 54
SP. RNG
Continues to operate and output
holding static pressure in %.
Check setting and change them as
needed.
AL. 55
SP. ADJ
Continues to operate and output. Check input.
AL. 60
SC. CFG
Specified values or settings to define
signal characterizer function do not
satisfy the condition.
Check setting and change
them as needed.
AL. 79
OV. DISP
Displayed value exceeds limit.
*1: These alarms may appear only when process alarm function is activated.
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