Errors And Countermeasures - YOKOGAWA Dpharp vigilantplant EJA Series Manual

7.

Errors and Countermeasures

NOTE
For F Fieldbus and PROFIBUS PA communication types, please refer to manuals in the attached CD-ROM.
OUNDATION
The table below shows a summary of error messages for BRAIN and HART protocols.
Table 7.1 Error Message Summary
Integral
Indicator Description
Display
None GOOD
--- ERROR
Er. 01 CAP MODULE FAULT
Er. 02 AMP MODULE FAULT
Er. 03 OUT OF RANGE
Er. 04 OUT OF SP RANGE
Er. 05 OVER TEMP (CAP)
Er. 06 OVER TEMP (AMP)
Er. 07 OVER OUTPUT
Er. 08 OVER DISPLAY
Er. 0 ILLEGAL LRV
Er. 10 ILLEGAL URV
Er. 11 ILLEGAL SPAN
Er. 12 ZERO ADJ OVER
*1: For Model EJA510A and EJA530A, this error code appears when an illegal overpressure is applied to the pressure sensor in
addition to the capsule problem. The Er. 01 will remain even if the normal input pressure is regained.
*2: For Model EJA510A and EJA530A, restart the power to the transmitter. Then if no error code appears, perform necessary
adjustments such as zero-adjustment to continue the operation.
If the error code still exists, replace the capsule assembly.
*3: For Model EJA120A, static pressure cannot be measured. The display is always 0 MPa, but this is not a measured value.
<7.
Cause Output Operation during Error
Capsule problem.* 1 Outputs the signal according to
status of a burnout direction pin
or switch (the signal can be set as
"hold" for BRAIN protocol).
Amplifier problem. Outputs the signal (Hold, Outputs
the signal according to status of
a burnout direction pin or switch
(the signal can be set as "hold" for
BRAIN protocol).
Input is outside Outputs high range limit value or
measurement range limit low range limit value.
of capsule.
Static pressure exceeds Displays present output.
specified range.* 3
Capsule temperature Displays present output.
is outside range (-50 to
130°C).
Amplifier temperature Displays present output.
is outside range (-50 to
95°C).
Output is outside high or Outputs high or low range limit
low range limit value. value.
Displayed value is Displays high or low range limit
outside high or low range value.
limit value.
LRV is outside setting Holds output immediately before
range. error occurrence.
URV is outside setting Holds output immediately before
range. error occurrence.
SPAN is outside setting Holds output immediately before
range. error occurrence.
Zero adjustment is too Displays present output.
large.
Errors and Countermeasures
28
>
Countermeasure
Replace capsule.* 2
Replace amplifier.
Check input.
Check line pressure (static
pressure).
Use heat insulation or make
lagging to keep temperature
within range.
Use heat insulation or make
lagging to keep temperature
within range.
Check input and range
setting, and change them as
needed.
Check input and display
conditions and modify them
as needed.
Check LRV and modify as
needed.
Check URV and modify as
needed.
Check SPAN and change as
needed.
Readjust zero point.
IM 01C22A01-01E