Siemens Siwarex U - Connection of the 24 V Power Supply; Load Cell Connection; Table 4-2 Power Supply Connection

3BHARDWARE CONFIGURATION AND INSTALLATION
4.4.4 Connection of the 24 V power supply
Note
In the system S7 300 or ET200M, the SIMATIC CPU or IM 153 and SIWAREX U
must be connected to the same 24 V power supply.
Use the 20-pin front connector to connect to the 24 V power supply.
Terminal Signal name Remarks
1 L+ 24 V DC 1L+ Power supply +
2 M 24 V DC 1M Power supply M
Table 4-2 Power supply connection
4.4.5 Load cell connection
Sensors which are equipped with strain gauges and meet the following conditions
can be connected to SIWAREX U:
- Characteristic value 1.... 4 mV/V
- Supply voltage of 6 V is permissible
Use the 20-pin front connector to connect to the supply voltage. The connection
should be made with the cable described in the chapter Order numbers and
accessories. The cable was developed especially for the connection of load cells.
Terminal Signal name Remarks
15 SENSE1+ Channel 1: sensor line +
16 SENSE1- Channel 1: sensor line -
17 SIG1+ Channel 1: measuring line +
18 SIG1- Channel 1: measuring line -
19 EXC1+ Channel 1: load cells supply voltage +
20 EXC1- Channel 1: load cells supply voltage -
Table 4-3 Connection of load cells channel 1
4-16
SIWAREX U