The I/O communication module is designed for wiring via a terminal strip in the control cabinet.
Common mode voltage in CAN bus Error-free communication of the devices on the CAN bus is only guaranteed if the voltage levels of the signal lines CAN Hi and CAN Lo are within the range of –2 V to +7 V. If this common mode voltage range is not maintained, use a CAN bus insulator (available from MOTORTECH as accessory) for potential isolation between the interfaces. |
On the left relay connector of the I/O communication module, the white wire CAN Hi and the brown wire CAN Lo are used for the CAN connection to the previous device in the CANopen® network. Use the yellow wire CAN Hi and the green wire CAN Lo of the left relay connector
to connect the I/O communication module to the following device in the CANopen® network. If the I/O communication module is the last device in the CANopen® network, connect the supplied 120 W terminating resistor to these wires.
Reference ground of the CAN bus interface of the I/O communication module is the supply voltage ground.
On the EasyNOₓ side, connect the shield of the CAN cable to the Shield terminal in the EasyNOₓ. On the module side, connect the shield of the CAN cable to the earth of the control cabinet for each I/O communication module. Connect the shields of the CAN cables of all devices in the CAN bus with each other.