Presetting Manual BG41/BG42/BG43
5-12 Rev. 99/49
5.2.9 Voltage supply of the module
Internal voltage supply via the
back plane bus
If the PLC on the bus provides 24V, the supply of the current
sources can take place via the bus. By means of the connector
field J6 on the base circuit board, one can choose if the 24V
should be taken from the top or the bottom base plug. If the top
base plug (X1) carries 24V, the jumpers are to be plugged as
follows (applies for PLC–115U):
Voltage supply via X1 for PLC-
115U
If the 24V are only available in the bottom base plug (X2) the
plug connectors are to be plugged as follows
(applies for PLC-135U, PLC-150U, PLC-155U):
Voltage supply via X2 for PLC-
135U, PLC-150U, PLC-155U
The plug connector J1 and J2 on the 20mA module
(or on the combination module) are to be brought into the
position for internal voltage supply "INT".
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