KROHNE MFC 400, Supplementary Instructions Manual

Page: 29 / 32

OPERATION
4
29
MFC 400
www.krohne.com 12/2017 - 4006097501 - AD MFC 400 Profinet R01 en
4.14 Diagnosis
4.14.1 Diagnosis 1
4.14.2 Diagnosis 2
Bit Description Recommended action
0 Flow Out Of Range Check process conditions.
1 Velocity Out Of Range Check process conditions.
2 Process Temperature Out Of
Range
Check process conditions.
3 Density Over Range Check process conditions.
4 Electronics Temperature Out Of
Specification
Move electronics away from process influences. Protect the
electronics against direct sunlight.
5 Hardware Failure Perform a power reset. If the status returns, contact manufacturer.
6 Memory Failure Perform a power reset. If the status returns, contact manufacturer.
7 Sensor Error Check cabling in case of remote device or replace sensor.
Table 4-28: Diagnosis 1
Bit Description Recommended action
0 Temperature or strain sensor
defective
Check cabling in case of remote device or replace sensor.
1 Data Error Check process input configuration or reset to factory configuration.
2 No Sensor Signal Check process conditions (entrained gas, viscosity). In case of remote
sensor check sensor cabling. Check internal sensor connections.
3 Sensor Signal Low Check for entrained gas or viscosity of product.
4 2 Phase Flow Over Threshold Check process for entrained gas.
5 Density Calibration Invalid Restart density calibration, check product and operation mode or
reset to factory settings.
6 PROFINET Startup records
invalid
Check start-up records.
Note: Some parameters are scaled by a configurable unit within the Note: Some parameters are scaled by a configurable unit within the Note: Some parameters are scaled by a configurable unit within the Note: Some parameters are scaled by a configurable unit within the
start-up records. Changing those units requires adjustment of the start-up records. Changing those units requires adjustment of the start-up records. Changing those units requires adjustment of the start-up records. Changing those units requires adjustment of the
affected parameters. affected parameters. affected parameters. affected parameters.
E.g. if density unit (ID 53) changes, the values of parameters ID 10,
ID 15 and ID 16 must be converted to the new unit manually.
7 Reserved -
Table 4-29: Diagnosis 2