Siemens SIWAREX WT241 Manual page 46

Commissioning
7.3 Commissioning via Quick Start routine
Scale parameters and functions of the belt scale (Page 59). When using the speed sensor,
the "Nominal belt speed" parameter is only used as a reference for the speed limits.
Use the "Door symbol" at the bottom left to return to the Setup menu. In the next step,
calibrate your scale using the instructions and parameters under item "1.2 Calibration".
7.3.1.2 Specification of a pulse constant
The pulse constant of the connected speed sensor or pulse encoder is usually noted in the
technical data sheet of the respective sensor. If "kg/m" was selected for the belt load, you
must specify the pulse constant in "Pulses per meter". If the belt load is displayed in "lbs/ft",
you must specify the pulse constant in "Pulses per foot".
If the sensor is mounted on the axis of a guide pulley, use the following equation to calculate
the pulse constant:
Pulse constant per meter = (Pulses per revolution) / (π x d)
Pulses per revolution: see sensor data sheet
π = 3.1416
d = diameter of guide pulley in meters
The inputs are completed using the save button (diskette symbol).
Then move on to the "Zero calibration" using → Zero calibration (Page 52).
Figure 7-4
46
Specification of pulse constant
SIWAREX WT241
Manual, 05/2015, A5E36046748A