Yokogawa EJA110E - Manual (Page 48)

<8. Maintenance>
8-9
IM 01C25B01-01E
8.5.3 Alarms and Countermeasures
Table 8.3 Alarm Message Summary
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.