Yokogawa Wireless Temperature Transmitter YTA510 - Manual (Page 23)

IM 01C50T03-01E 4-2
4. SELF-DIAGNOSTICS
Table 4.1 List of Error Codes
Indicator BT200 display Cause Output operation upon error Action
T0401.EPS
Er-01 Output Too Low
Er-02 Output Too High
Er-03 Sensor1 Failure
Er-04 Sensor2 Failure
(YTA320 only)
Er-05 S1 Signal Error
Er-06 S2 Signal Error
(only YTA320)
Er-07 Amb Temp Low
Er-08 Amb Temp High
Er-09 Sns Backup Start
(only YTA320)
Er-10 Illegal PV MAP
Er-11 Term Sns Failure
Er-12 EEPROM Failure
Er-13 CPU Failure
Er-14 AD Conv Failure
Er-15 Reverse Cal Fail
Input value is lower than the
PV low range value.
Input value is higher than the
PV Upper range value.
Sensor1 fails or disconnects
from the terminal box.
Sensor2 fails or disconnects
from the terminal box.
Sensor1 input value greatly
exceeds sensor
measurement range. Sensor
type or connection polarity
may be incorrect.
Sensor2 input value greatly
exceeds sensor
measurement range. Sensor
type or connection polarity
may be incorrect.
The ambient temperature
exceeds the lower ambient
temperature limit of the
transmitter.
The ambient temperature
exceeds the upper ambient
temperature limit of the
transmitter.
Sensor backup mode is in
effect.
There is a problem with the
PV mapping setting.
Terminal block sensor has
failed.
EEPROM failed.
Output circuit hardware
failure.
Input circuit hardware failure.
Confirmation calculation
result is bad.
Outputs goes to minimum
value. (3.68 mA, –2.0%)
Outputs goes maximum
value. (20.8 mA, 105%)
If sensor1 is set as PV,
burnout value is output.
*1
When sensor backup mode
is set in YTA320, sensor2
input is used as PV.
If sensor1 value is set as
PV, and the sensor backup
mode is effect, the sensor
burnout value is output.
*1
Outputs goes to minimum
value (3.68 mA) or
maximum value (20.8 mA).
Outputs goes to minimum
value (3.68 mA) or
maximum value (20.8 mA).
Continues to operate and
output.
Continues to operate and
output.
Sensor2 input is used as
PV. If sensor2 fails, the
transmitter operates with
burnout setting.
Check output status
immediately before error is
stored.
Continues operate and
output.
The output goes to the
value set by the hardware
error mode jumper.
*2
The output goes to the
value set by the hardware
error mode jumper.
*2
The output goes to the
value set by the hardware
error mode jumper.
*2
The output goes to the
value set by the hardware
failure mode jumper.
*2
Check the LRV and adjust.
Check the URV and adjust.
• Check sensor for damage.
• Check terminal connection.
• If in sensor backup mode
refer to “Er-09.”
• Check sensor for damage.
• Check terminal connection.
• If sensor backup mode is set,
repair wiring or replace
damage sensors.
• Check sensor connections.
• Check sensor type selected.
• Check sensor connections.
• Check sensor type selected.
Use a heat source to raise the
temperature of the transmitter.
Use a cooling source to lower
the temperature of the
transmitter.
Repair or replace sensor1 then
enable sensor1 normal
connection parameters, or
repower the transmitter.
Correct the PV mapping.
Contact Service personnel.
Contact Service personnel.
Contact Service personnel.
Contact Service personnel.
Contact Service personnel.
N/A GOOD
*1: See subsection 3.2.9 (a) ‘Sensor burn out.’
*2: See subsection 3.2.9 (b) ‘Confirming the output direction if Hardware error occurs.’