Illustration 7.1: Network Terminal Connection - Danfoss VLT Series Design Manual

7. RS-485 Installation and Set-up
7.1.2. Network Connection
Connect the frequency converter to the
RS-485 network as follows (see also diagram):
1.
7
7.1.3. VLT HVAC Hardware Setup
Use the terminator dip switch on the main
control board of the frequency converter to
terminate the RS-485 bus.
122
Connect signal wires to terminal 68
(P+) and terminal 69 (N-) on the
NB!
Screened, twisted-pair cables are recommended in order to reduce noise between
conductors.
NB!
The factory setting for the dip switch is OFF.
MG.11.B2.02 - VLT
main control board of the frequency
converter.
2. Connect the cable screen to the ca-
ble clamps.

Illustration 7.1: Network Terminal Connection

Terminator Switch Factory Setting
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is a registered Danfoss trademark
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VLT HVAC Drive Design Guide