2 DEVICENET COMMUNICATION ACCESSORY
In order to make the DeviceNet communication possible with the product, it is necessary to use the CAN
communication kit described next. Information on the installation of this module can be obtained in the guide
that comes with the kit.
2.1 PLUG-IN MODULE CFW500-CCAN
WEG part number: 11593087
Composed by the CAN communication module (drawing at the left),
mounting instruction and fixing screw.
The interface is electrically isolated and with differential signal, which
grants more robustness against electromagnetic interference.
External 24V supply.
It allows the connection of up to 64 devices to the same segment. More
devices can be connected by using repeaters
4
.
A maximum bus length of 1000 meters.
2.2 CONNECTOR PINOUT
The CAN communication module presents a 5-wire plug-in connector with the following pinout:
Table 2.1: CAN interface connector pinout
Pin Name Function
1 V- Power supply negative pole
2 CAN_L CAN_L communication signal
3 Shield Cable shield
4 CAN_H CAN_H communication signal
5 V+ Power supply positive pole
NOTE!
It is recommended to connect the GND pin of the CFW500-CCAN module to protective earth. This is
necessary to connect the cable shield with the earth.
2.3 POWER SUPPLY
The CAN interface needs an external power supply between the pins 1 and 5 of the network connector. The
individual consumption and input voltage data are presented in the next table.
Table 2.2: CAN interface supply characteristics
Supply Voltage (V
DC
)
Minimum Maximum Recommended
11 30 24
Current (mA)
Typical Maximum
30 50
2.4 INDICATIONS
Details on the alarms, communications failures and communication states are made through the keypad (HMI)
and product parameters.
4
The maximum number of devices that can be connected to the network depends also on the used protocol.
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