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Technosoft 2019
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iPOS80x0 BX-CAN/-CAT Technical Reference
3.4.9
CAN-bus connection (for CAN drives only)
3.4.9.1
CAN connection
Figure 3.24.
CAN connection
Remarks:
1. The CAN network requires a 120-Ohm terminator. This is not included on the board.
Figure 3.25 shows how to connect it on your network
2. CAN signals are not insulated from other iPOS80x0 circuits.
3.4.9.2
Recommendation for wiring
a) Build CAN network using cables with twisted wires (2 wires/pair), with CAN-Hi twisted together with CAN-Lo.
It is recommended but not mandatory to use a shielded cable. If so, connect the shield to GND. The cable
impedance must be 105 ... 135 ohms (120 ohms typical) and a capacitance below 30pF/meter.
b) The 120
Ω
termination resistors must be rated at 0.2W minimum. Do not use winded resistors, which are
inductive.
Figure 3.25.
Multiple-Axis CAN network