KROHNE OPTIMASS with MFC 05x EN - Manual (Page 95)

Installation and Operating Instructions OPTIMASS 94
6.2 Error Messages
• Basic Errors: These errors are displayed independently of which error message function is selected.
• Transducer Errors: These errors only occur when error massage function is set to TRANS.ERROR or
ALL ERRORS
• I/O Errors: These errors only occur when TRANS.ERROR or ALL ERRORS is set to I/O Errors or All
Errors
• All Errors: All errors can occur
• Errors are encoded as follows:
Bit Error Name Error definition Error type Error Level
0 MASS FLOW Measured mass flow value over range Basic error Light
1 ZERO ERROR Excessive flow measured during zero calibration Basic error Light
2 TOTAL O/F Fixed precision totaliser has rolled over Basic error Light
3 Not used
4 Temperature Temperature is outside the operating ranges Basic error Light
5 Sensor A Sensor A voltage signal is less than 5% of desired value Transducer error Light
6 Sensor B Sensor B voltage signal is less than 5% of desired value Transducer error Light
7 Ratio A/B One sensor signal is much larger than the other Basic error Severe
8 DC A DC voltage part of sensor A is larger than 20% ADC Basic error Severe
9 DC B DC voltage part of sensor B is larger than 20% ADC Basic error Severe
10 Not used
11 Sampling No synchronization with primary head Basic error Severe
12 Not used
13 ROM DEFAULT EEPROM checksum error detected on start up.
Default data has been loaded. Basic error Severe
14 Not used
15 EEPROM Unable to save data to EEPROM. Hardware fault Basic error Fatal
16 NVRAM Checksum error detected on startup. Previous data lost Basic error Severe
17 NVRAM FULL NVRAM has exceeded 50,000 Cycles Basic error Fatal
18 POWER.FAIL Custody transfer only. There has been an interruption of
power to the converter. Basic error Light
19 Watchdog Converter reset by the watchdog. Last NVRAM save failed. Basic error Fatal
20 Not used
21 Temp Custody Temperature has drifted by 30 degrees from the zero
calibration temp Basic error Light
22 RESIST.CIR Resistance circuit has failed Basic error Light
23 I 1 SAT. Current output 1 is outside the set ranges I/O Error Light
24 FREQ SAT. Frequency/pulse output is outside the set ranges I/O Error Light
25 ALARM.OUT.A Alarm output is outside the set ranges I/O Error Light
26 I 2 SAT Current output 2 is outside the set ranges I/O Error Light
27 I 3 SAT Current output 3 is outside the set ranges I/O Error Light
28 COMM.FAIL Communication failure > 5 attempts without valid response Basic error Severe
29 SYS Changed The front end or backend do not match. (One has been
changed Basic error Light
30 SYSTEM Converter reset Basic error Severe
31 Not used
Errors on POWER UP
• WIRING ERROR : Incorrect wiring detected on remote meters
• FRONT END ERROR :