KROHNE IFC 090 i Converter FOUNDATION FIELDBUS - Manual (Page 43)

Supplementary Documentation Page 43 of 44
IFC090, IFC090 i with FF
Troubleshooting
IFC090 FF 01/2006
KROHNE Messtechnik GmbH & Co. KG · Ludwig-Krohne-Str. 5 ‚ D-47058 Duisburg
Tel.: 0203-301 309 ‚ Fax: 0203-301389 · E-mail: [email protected]
6.1.3 Analog Input Block
The follwowing table lists the block errors documented by the Analog Input Block:
Error Code Description Action
Out of Service Target mode is set to
‘Out of Service (OOS)’ If Automatic is the desired target mode, set MODE_BLK target to
‘Automatic (Auto)’.
‘Block Configuration
Error’ is also set
See ‘Block Configuration Error’ description below.
Block
Configuration
Error Value of CHANNEL ≠
1
Set the value of CHANNEL to 1.
Value of L_TYPE is
unspecified. Set value of L_TYPE to ‘Direct’, ‘Indirect’, or ‘Indirect Square
Root’.
NOTE:
If set to ‘Indirect’ or ‘Indirect Square Root’, don’t forget to
configure parameter OUT_SCALE!
Unit of XD_SCALE is
not equal to unit of
Transducer Block
parameter
PRIMARY_VALUE_R
ANGE Set the unit of XD_SCALE to the same unit as
PRIMARY_VALUE_RANGE.
NOTE:
Since the unit of PRIMARY_VALUE_RANGE is fixed to m 3 /s,
this always must be m 3 /s.
Some IFC090 measurement problems can be read from the Analog Input Block parameter OUT status. The
following table lists (almost) all of the Analog Input OUT statuses that are mapped to IFC090 (Precondition:
Analog Input Block is configured and target mode is set to Automatic, see 5.3):
OUT status Description Action
Good:NonSpecific:NotLi
mited No IFC090 problem
detected n/a
Bad:NonSpecific.NotLi
mited Old measurement
value. The value has
not been updated for
a long period of
time. Normally, this status will disappear after a short period. If not,
replace signal converter or contact KROHNE service.
Bad:ConfigurationError:
NotLimited Analog Input Block
configuration is
incorrect. Check parameters CHANNEL, L_TYPE and XD_SCALE.
Configure them as described in 5.3.
Bad:DeviceFailure:NotL
imited
Bad:DeviceFailure:Con
stant AD converter error. Replace signal converter or contact KROHNE service.
Bad:SensorFailure:Con
stant Measured value is
outside of sensor
range. Check instrument parameters and correct it if necessary. Error
messages deleted automatically.
Bad:OutOfService:NotLi
mited Actual mode is Out
of Service. Check the target mode and ensure that it is set to ‘Auto’ mode.
Pipe is empty Fill the pipe with media. Uncertain:NonSpecific:
NotLimited
AD converter
overshooted. Check instrument parameters and correct it if necessary. Error
messages deleted automatically.