NOTICE!
For the trouble-free operation of an I/O bus extension system, the ground connection
of
the I/O bus power supplies (V
k
0 V) of all terminal blocks must be connected with
each other via a low-impedance connection (see Figure). This also includes the
ground connection of the I/O bus power supply of the higher-level Fieldbus Coupler!
Power supply
Operation Manual Safety I/O Terminals SI4000 / SO4000
Document no.: 5.08009.05 Baumüller Nürnberg GmbH
40
of 82
6.5
Figure 7: Power supply of the terminal blocks
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