Load Cell Connection; Supply Voltage - HBM DWS2103 Kurzanleitung

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5.4 Load cell connection

Only digital load cells or weighing electronics (FIT, AED, PWxi) can be con-
nected to DWS2103. An RS485 interface and a CAN interface are available
on DWS2103 for this purpose.
Load cells and weighing electronics can be operated via the main channel on
DWS2103 as well as via the diagnostic channel. Care must be taken to en-
sure that all weighing units connected to the BUS are connected either via the
main channel or via the diagnostic channel.
There is a choice of interface to use with the weighing units:
Main channel:
or CAN
Diagnostic channel:
Mixed operation of the main and diagnostic channels is not permissible, nor is
using different interfaces (RS485, CAN).
Factory settings for all digital weighing units (such as FIT, AED, etc.), are ad-
dress 31 (for RS485) and address 63 (for CAN).
If several load cells with factory settings are connected to a scale, the load
cell addresses must first be changed. These settings are made in the "BUS
SCAN" parameter menu.
NOTE
Call up the parameter menu "BUS SAN" after connecting the load cells.

5.5 Supply voltage

Terminal Function
1.2 Supply voltage
1.3 Ground
1)
The supply voltage must be sufficiently filtered (rms value minus residual ripple > 10V).
HBM
RS485 4-wire (full duplex), RS485 2−wire (half duplex)
RS485 2-wire (half duplex) fixed baud rate 38400 Bd,
even parity
Comments
+10...30 V
1)
DC
DWS2103
A2936-1.0 en/de