KROHNE IFC 090 Supplementary Installation & Operation Instructions page 43

Supplementary Documentation
IFC090, IFC090 i with FF
IFC090 FF 01/2005
6.1.3 Analog Input Block
The follwowing table lists the block errors documented by the Analog Input Block:
Error Code Description
Out of Service Target mode is set to
'Out of Service (OOS)'
'Block
Error' is also set
Value of CHANNEL ≠
Block
Configuration
1
Error
Value of L_TYPE is
unspecified.
Unit of XD_SCALE is
not equal to unit of
Transducer Block
parameter
PRIMARY_VALUE_R
ANGE
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
Good:NonSpecific:NotLi
mited
Bad:NonSpecific.NotLi
mited
Bad:ConfigurationError:
NotLimited
Bad:DeviceFailure:NotL
imited
Bad:DeviceFailure:Con
stant
Bad:SensorFailure:Con
stant
Bad:OutOfService:NotLi
mited
Uncertain:NonSpecific:
NotLimited
KROHNE Messtechnik GmbH & Co. KG · Ludwig-Krohne-Str. 5 D-47058 Duisburg
Tel.: 0203-301 309 Fax: 0203-301389 · E-mail: krohne@krohne.de
Troubleshooting
Action
If Automatic is the desired target mode, set MODE_BLK target to
'Automatic (Auto)'.
See 'Block Configuration Error' description below.
Configuration
Set the value of CHANNEL to 1.
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!
Set
PRIMARY_VALUE_RANGE.
NOTE:
Since the unit of PRIMARY_VALUE_RANGE is fixed to m
this always must be m
Description Action
No IFC090 problem n/a
detected
Old measurement Normally, this status will disappear after a short period. If not,
value. The value has replace signal converter or contact KROHNE service.
not been updated for
a long period of
time.
Analog Input Block Check parameters CHANNEL, L_TYPE and XD_SCALE.
configuration is Configure them as described in 5.3.
incorrect.
AD converter error. Replace signal converter or contact KROHNE service.
Measured value is Check instrument parameters and correct it if necessary. Error
outside of sensor messages deleted automatically.
range.
Actual mode is Out Check the target mode and ensure that it is set to 'Auto' mode.
of Service.
Pipe is empty Fill the pipe with media.
AD converter Check instrument parameters and correct it if necessary. Error
overshooted. messages deleted automatically.
the unit of XD_SCALE
3
/s.
Page 43 of 44
to the same unit as
3
/s,