Lenze DeviceNet EMF2179IB Instructions De Montage page 54

6 Electrical installation
Wiring to a host
Wiring to a host
{
Danger!
You have to provide additional electrical isolation if ...
an 820X and 821X controller is connected to the host and
ƒ
a safe electrical isolation (reinforced insulation) according to EN 61800−5−1
ƒ
is required.
For this purpose for instance an interface module for the master computer with an
additional electrical isolation can be used (see respective manufacturer information).
For wiring observe the electrical isolation of the supply voltage. The supply voltage is on the
same potential as the data bus.
A DeviceNet line can have max. 63 nodes. The nodes are ...
ƒ the DeviceNet master (scanner)
ƒ the connected Lenze standard devices
ƒ all other components which take part in the communication.
For integration of the DeviceNet communication modules use a PC with an installed
software (e.g. »RSNetWorx«).
)
Note!
Connect the shield to GND once together with the "V−" connection on the
ƒ
voltage supply. For this, use the centre point of the DeviceNet line, if
possible.
For each node the shield of the DeviceNet cable only has to be connected
ƒ
to the "shield" connection of the plug connector.
Connect a bus terminating resistor of 120
ƒ
of the DeviceNet line.
54
W
each to the first and last node
l
EDKMF2179 DE/EN/FR 4.1