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7.1.2. Network Connection
Connect the frequency converter to the
RS-485 network as follows (see also diagram):
1.
Connect signal wires to terminal 68
(P+) and terminal 69 (N-) on the
main control board of the frequency
converter.
2.
Connect the cable screen to the ca-
ble clamps.
NB!
Screened, twisted-pair cables are recommended in order to reduce noise between
conductors.
Illustration 7.1: Network Terminal Connection
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.
Terminator Switch Factory Setting
NB!
The factory setting for the dip switch is OFF.
7. RS-485 Installation and Set-up
VLT
®
HVAC Drive Design Guide
122
MG.11.B2.02 - VLT
®
is a registered Danfoss trademark
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