Communication
11.4 DR 3 Belt scale parameters
SIWAREX WT241
Manual, 05/2015, A5E36046748Aa 105
Using commands 72 (Start), 73 (Stop) and 86 (Apply), the point can be determined
automatically during commissioning (with loaded belt) or during operation.
11.4.15 Belt load factor for speed correction
The associated belt load factor (in % of nominal load) is specified for determination of the
speed correction (→ Speed correction if belt loaded (Page 104)).
You must observe the value in DR30 during the calculation and subsequently enter it.
11.4.16 Impulse constant speed sensor
If known, you can directly enter the pulse constant of the connected sensor. The input is
made either in "Pulses per meter" or "Pulses per foot" depending on the selected unit. If the
pulse constant is unknown, it can be calculated automatically by the SIWAREX WP241 using
an exactly defined total belt length. Commands 70 and 71 are used for this purpose.
You will find more detailed information on using or determining the pulse constants in the
section Commissioning with speed sensor (Page 45).
Note
If the jumper is closed to protect data with verification capability, the parameter can no longer
be changed.
11.4.17 Initial zero calibration digits
Following calibration of the scale's zero point, the digit value from the A/D converter is stored
as the average value for the set number of belt revolutions. When zeroing the scale during
subsequent operation, a check is made to establish whether the deviation from this original
zero point does not exceed the defined limit.
Note
If the jumper is closed to protect data with verification capability, the parameter can no longer
be changed.
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