HBM WE2107 - Short Description of the Application Tank Weighing Control (SFU2)

WE2107 - Communication commands
122
I1820-1.3 enHBM
Short description of the application tank weighing control (SFU2):
The goal is to fill a portion into a bin / vessel / bag. This bin / vessel / bag is not connected
with the scale. The tank is mounted on the scale.
Digital I/O
Function with SFU2
IN1 Stop process (like command BRK), see FIN
IN2 Start process (like command RUN), see FIN
OUT1 Ready
OUT2 Coarse flow control (dosing) / emptying tank
OUT3 Tank filling
OUT4 Error
LIV parameters Function with SFU2
LIV1_ON Target filling weight tank
LIV1_OFF Filling flow disconnection point
LIV2_ON Target weight dosing (portion weighing)
LIV2_OFF Coarse flow disconnection point dosing
LIV3_ON Tolerance weight + dosing
LIV3_OFF Tolerance weight ‐ dosing
LIV4_ON Maximum filling weight of the tank
LIV4_OFF Minimum filling weight of the tank
If LIV2_ON is changed than LIV2_OFF:= LIV2_ON x 0.9
There are three main tasks:
D Filling the tank
D Portion weighing (dosing) from the tank into a bin
D Emptying the tank (for service)