Endress+Hauser Proline Prosonic Flow 93, Руководство по эксплуатации

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Troubleshooting Proline Prosonic Flow 93 PROFIBUS DP/PA
136 Hauser
Fieldbus voltage
(only for PROFIBUS PA) Check that a min. bus voltage of 9 V DC is present at terminals 26/27.
Permissible range: 9 to 32 V DC
Network structure Check permissible fieldbus length and number of spurs.
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Basic current
(only for PROFIBUS PA) Is there a basic current of min. 11 mA?
Bus address Check bus address: make sure there are no double assignments
Bus termination
(Termination) Has the PROFIBUS network been terminated correctly?
Each bus segment must always be terminated with a bus terminator at both ends (start and
finish). Otherwise there may be interference in communication.
Power consumption,
permitted feed current
(only for PROFIBUS PA) Check the current consumption of the bus segment:
The current consumption of the bus segment in question (= total of basic currents of all bus
users) must not exceed the max. permissible feed current of the bus power supply.
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System or process error messages
System or process errors which occur during commissioning or operation can be displayed via the local display or an
operating program (e.g. FieldCare) in the ACTUAL SYSTEM CONDITION function.
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Other error (without error message)
Some other error has
occurred. Diagnosis and rectification
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