13. Series 8 I/O
Alarms and Failures
13.2. Reviewing IOM soft failures
R500
Series 8 I/O User's Guide
285
April 2017
Honeywell
177
F3CALFL
TC/RTD FTA 3 calibration failure.
Diagnostic check:
Check FTA calibration
Cause:
TC/RTD FTA 3 calibration failure.
Solution:
Recalibrate the FTA. This soft failure is introduced in Series 8.
178
F4CALFL
TC/RTD FTA 4 calibration failure.
Diagnostic check:
Check FTA calibration
Cause:
TC/RTD FTA 4 calibration failure.
Solution:
Recalibrate the FTA. This soft failure is introduced in Series 8.
179
OPENWIRE
Open wire / sensor detected.
Diagnostic check:
Check the field wiring and IOTA connections.
Cause:
Open wire / sensor detected.
Solution:
Check the field wiring and IOTA connections.
180
DOVRCRNT
Digital Output channel detected a short circuit or over current situation.
Diagnostic check:
Check the field wiring and IOTA connections.
Cause:
Digital Output channel detected a short circuit or over current
situation.
Solution:
Check the field wiring and IOTA connections.