Dr 5 Correction Factors For Material Flow Rate; Correction Factors 1 And 2 - Siemens SIWAREX WP241 Manual

Scale parameters and functions of the belt scale

8.7 DR 5 Correction factors for material flow rate

8.7 DR 5 Correction factors for material flow rate
Data record DR 5 stores the correction factors from the material test. In legal trade
operation, the data record is write-protected. The material test is used to determine the
correction factor of a calibrated scale. With a material test, the conveyed amount of material
is subsequently measured or is already known at the beginning of the test.
You can use e.g. totalizer 6 for this material test. In order to prevent the material conveyed
during the test from being included in the balance, stop totalizing using command 652. All
totalizers then stop except for totalizer 6. You can subsequently reset totalizer 6 using
command 674 and use it for the test.
You can determine two different correction points with two different belt loads. A correction
characteristic is then produced depending on the actual belt load. If only one correction point
is to be used, set the "Belt load factor 2" parameter to 0 and the "Belt load factor 1"
parameter to e.g. 40. With this setting, correction factor 1 applies to the complete working
range of the scale. The influence of the belt speed is not taken into consideration for the
correction factors.
Set the correction factors to a value of 1 prior to the test. If this is not possible, you must
correct (multiply) the existing correction factor with the newly calculated factor.
Table 8- 3 Assignment of data record 5
Variable Note
Data record number Contains no. of data record
Length Data record length information
Application Information about which
application the DR belongs to
Version identifier Information about current data
record version
Belt load factor 1 Belt load factor for correction
(Page 91) point 1 (in % of nominal belt
load)
Correction factors 1 Correction factor with belt load
and 2 (Page 91) factor 1
Reserve Reserve
Reserve Reserve
Reserve Reserve
Reserve Reserve
Belt load factor 2 Belt load factor for correction
(Page 91) point 2 (in % of nominal belt
load)
Correction factors 1 Correction factor with belt load
and 2 (Page 91) factor 2
90
Type L Rw
USHORT 2 r
USHORT 2 r
USHORT 2 r
USHORT 2 r
FLOAT 4 rw
FLOAT 4 rw
FLOAT 4 rw
FLOAT 4 rw
FLOAT 4 rw
FLOAT 4 rw
FLOAT 4 rw
FLOAT 4 rw
Default Min. Max.
5 - -
40 - -
104 - -
1 1 65635
40
1
0
0
0
0
0
1
SIWAREX WP241
Manual, 04/2014, A5E33713528A
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