Yokogawa EJA115 - Manual (Page 27)

IM 01C22T01-01E 2-20
2. HART COMMUNICATOR OPERATION
2.4 Self-Diagnostics
2.4.1 Checking for Problems
(1) Identify Problems with HART Communica-
tor
Self-diagnostics of the transmitter and check of
incorrect data setting can be carried out with the
HART communicator. There are two methods for self-
diagnosis of the transmitter, self-diagnosis for every
transmission and manually executing the SELF TEST
command. When an error message appears, follow
“ERROR MESSAGES”.
Diagnostic by “self test”
1
F0242.EPS
Call up the Test/Status, and select
Self test.
EJA:
Test/status
1 Self test
2 Status
HELP SET HOME OK
EJA:
Self test OK
DEL SET ABORT OK
2
If there is no error detected, Self
test OK will be displayed.
When an error occurs, an error
message appears, and the results
of self-diagnosis appear in the
Status item.
1. Device setup
2. Diag/Service
1. Test/Status
1
Call up the Status item.
If there is no error, the result of
diagnostics is indicated as OFF. If
ON is indicated, a countermeasure
for that error is necessary.
EJA:
Test/status
1 Self test
2 Status
HELP SET HOME OK
EJA:
Status
Field device not
installed
OFF
DEL PREV NEXT EXIT
2
(NEXT)
• Error Messages — HART Communicator
T0205.EPS
Error Message Probable Cause Countermeasure
Pressure sensor
error
Temp (Cap) sensor
error
EEPROM (Cap)
failure
Sensor board not
initialized
Temp (Amp) sensor
error
EEPROM (Amp)
failure
Dev id not entered
CPU board not
initialized
Invalid Selection
Parameter Too High
Parameter Too Low
Incorrect Byte Count
In Write Protect
Mode
Set to Nearest
Possible Value
Lower Range Value
too High
Lower Range Value
too Low
Upper Range Value
too High
Upper Range Value
too Low
Span too Small
Applied Process
Value too High
Applied process
Value too Low
New LRV pushed
URV Over Sensor
Limit
Excess Correction
Attempted
In Proper Current
Mode
In Multidrop Mode
Capsule problem
Amplifier problem
Set value is too high.
Set value is too low.
Operation is set in the
Write Protect mode.
Value is set to a
nearest possible value.
LRV set point is too
high.
LRV set point is too
low.
URV set point is too
high.
URV set point is too
low.
Set span is too small.
Applied pressure is
too high.
Applied pressure is
too low.
The shift of URV
according to the new
LRV setting exceeds
USL.
Amount of correction
is too much.
The fixed current
mode is desired but
not set in that mode.
Operation is set in
the multi-drop mode.
Replace capsule
when error keeps
appearing even
after restart.
Replace
amplifier.
Change the
setting.
Change the
range.
—
—
—
—
Adjust the
applied pressure.
Change the
setting within the
range of USL.
Adjust the amount
of correction.
Set in the fixed
current mode.