MPFiltri ICM, Руководство пользователя

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Electrical Connection 5
2 Electrical Connection
Figure 1 ICM Electrical Connection
The ICM requires a DC power supply and the two CAN-bus signals
CANL
and
CANH
, as shown in Figure 1 . The numbers shown are the pin numbers of the circular
connector that plugs into the ICM.
• The DC voltage is typically 24V, but can be 9-36V. See the ICM user guide for
the precise range.
• Twisted pair cable should be used for the CAN-bus signals, for cable lengths
over a few meters. The cables supplied with the ICM are twisted pair.
• CAN-bus requires the network to be terminated at each end. This must be done
externally to the ICM.
• The CAN-bus signals
CANL
and
CANH
are referred to the system 0V supply.
These should stay within the common mode range allowed by the ISO-11898-4
CAN-bus standard relative to the ICM 0V connection. This range is -2V to +7V.
This can be normally be ensured by connecting together the ICM 0V and the
0V of the CAN-bus controller. The ``CAN 0V’’ wire shown indicates this link.