ABB Endura APA592 Operating Instruction page 75

Endura APA592
pH / Redox (ORP) transmitter
Diagnostic Message
[Sub-error Message]
F088.016
Sensor electronics failure
or wrong sensor board
[Sensor electronics
interface error]
F106.032
Unreliable output current
F108.035
Output ReadBack failure
F116.023
Memory Failure
M023.036
Sensor electronics
voltage warning
M024.033
Power Supply warning
[Power Supply too High]
[Power Supply too Low]
Table 8.2 Diagnostic Messages (Continued)
OI/APA592–EN Rev. E
Possible Cause(s)
[Related Condition]
Data exchange with sensor
electronics board has failed.
[ELECTRONICS]
The D to A converter is not properly
Calibrated / Trimmed or output
current has reached its hardware
limit.
[ELECTRONICS]
The output circuit could be broken
or not correctly calibrated
[ELECTRONICS]
Electronic memory corrupted.
[ELECTRONICS]
Sensor electronics related
malfunction.
[ELECTRONICS]
The Device Power Supply is close
to the highest / lowest acceptable
limit.
[CONDITION]
8 Troubleshooting and Diagnostics
Corrective Action
Power cycle the transmitter and check if the
problem is corrected.
If the error persists, replace electronics.
Perform an Output Trimming.
If the error persist, replace the electronics.
Perform an Output Trimming.
If the error persists replace electronics.
Replace electronics. Contact factory.
Check sensor wiring.
If problem persists, contact factory.
Check the Voltage at the terminal block and if it is
not within the valid range check the external power
supply.
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