Yokogawa EJX930A - Manual (Page 75)

<4. Diagnostics>
4-25
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. 55
SP. ADJ
SP SPAN trim err * 1
Static Pressure SPAN
Trim Error * 2
Specified value is outside
of setting range.
Continues to operate and
output.
Adjust settings and
change them as
needed.
7
C
on
fig
ur
at
io
n
SP ZERO trim err * 1
Static Pressure ZERO
Trim Error * 2
AL. 56
ET. RNG
Illegal ET LRV * 1
Illegal External Temp
LRV * 2
Holds at the output value
that existed immediately
before the error occurred.
Check settings and
change them as
needed.
8
Illegal ET URV * 1
Illegal External Temp
URV * 2
Illegal ET SPAN * 1
Illegal External Temp
SPAN * 2
AL. 57
ET. ADJ
ET SPAN trim err * 1
External Temp SPAN
Trim Error *2
Continues to operate and
output.
Adjust settings and
change them as
needed.
7
ET ZERO trim err * 1
External Temp ZERO
Trim Error * 2
AL. 58
FL. ADJ
F set outside Range * 1
Flow set Outside
Range * 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.
8
AL. 59
PLS.ADJ
PLS set err * 1 , * 2 Specified value is outside
of setting pulse output.
Normal calculation.
7
—
ET Fixed Mode * 1 , * 2 Under Temperature Fix
Mode. PV is ET
Temp. Output Fix at 4mA. Leave from
Temperature Fix
Mode.
7
AL. 79
OV. DISP
— Displayed value exceeds
limit.
Continues to operate and
output.
Check settings and
change them as
needed.
—
D
ia
g
St
at
us
AL.87
FLG. HI
FT high alarm * 1
Flg Temp High Alarm
* 2
Flange temperature
exceeds a preset upper
limit.
It depends on the Diag Out
Option setting.
Off: Continue to operate and
output.
Burnout:Outputs AO upper
limit or AO lower limit.
Fall back:Outputs Diag Out
Fixed Val.
Check the heater
failure.
Check the capsule
temp. and Amplifier
temp.
Adjust Flg Temp
Coef.
9
AL.87
FLG. LO
FT low alarm * 1
Flg Temp Low Alarm
* 2
Flange temperature is
below a preset lower
limit.
AL.88
INVR.DP
Invalid Ref DP * 1
Invalid Ref fDP * 2
Differential pressure/
pressure fluctuation does
not reach the reference
level required to blockage
detection so that no
blockage detection is
carried out.
Continue to operate and
output.
Check process
condition.
AL.88
INVR.SL
Invalid Ref SPL * 1
Invalid Ref fSPl * 2
Low-pressure-side
fluctuation does not
reach the reference
fluctuation level required
to blockage detection.
AL.88
INVR.SH
Invalid Ref SPH * 1
Invalid Ref fSPh * 2
High-pressure-side
fluctuation does not reach
the reference fluctuation
level required to blockage
detection.
AL.88
INVR.F
Invalid Ref F * 1
Invalid Ref BlkF * 2
BlkF can not be used for
blockage detection for
some reasons.
AL.89
ILBD.OV
ILBD over range * 1
Outside Diagnosis
Range * 2
Appointed the diagnosis
range outside.
*1: DD (HART 5/HART 7), DTM (HART 7)
*2: DTM (HART 5)
*3: Available only for HART 7