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12
SI-DeviceNet User Guide
Issue Number: 2
4
Electrical installation
4.1
SI-DeviceNet terminal descriptions
SI-DeviceNet has a standard 5-way screw terminal block connector (shown on the right)
for the DeviceNet network.
Figure 4-1 SI-DeviceNet - connector view
Table 4.1 SI-DeviceNet terminal descriptions
5-way
terminal
Function
Description
1
0 V
0 V DeviceNet external supply
2
CAN-L
Negative data line
3
Shield
Cable braided shield connection
4
CAN-H
Positive data line
5
+24 V
+24 V DeviceNet external supply
The external supply terminals provide power for the DeviceNet transceiver circuitry, but
do NOT provide power to keep the SI-DeviceNet operating in the event of the mains pow-
er supply loss to the drive. An external supply will keep the DeviceNet transceivers pow-
ered up and the network load characteristics constant in the event of loss of power to the
drive.
Any external supply must be suitably installed to prevent noise on the network.
Connecting pins 1 and 5 to an external supply allows the line driver circuitry to remain
powered when the drive and the SI-DeviceNet module are turned off. This 24 V input
does not allow SI-DeviceNet to continue communicating.
5
1
NOTE
CAUTION
Содержание SI-DeviceNet
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