4.8.6 RS-485 Serial Communication
Connect RS-485 serial communication wiring to terminals
(+)68 and (-)69.
•
Use shielded serial communication cable
(recommended)
•
See
for proper grounding.
61
68
69
+
130BB489.10
RS-485
Figure 4.12 Serial Communication Wiring Diagram
For basic serial communication set-up, select the following:
1.
Protocol type in
8-30 Protocol
.
2.
Adjustable frequency drive address in
8-31 Address
.
3.
Baud rate in
8-32 Baud Rate
.
•
Two communication protocols are internal to the
adjustable frequency drive.
Danfoss FC
Modbus RTU
•
Functions can be programmed remotely using
the protocol software and RS-485 connection or
in parameter group
8-** Communications and
Options.
•
Selecting a specific communication protocol
changes various default parameter settings to
match that protocol’s specifications and makes
additional protocol-specific parameters available.
•
Option cards for the adjustable frequency drive
are available to provide additional communi-
cation protocols. See the option card
documentation for installation and operation
instructions.
Electrical Installation
Instruction Manual
MG33AP22
Danfoss A/S © Rev. 09/2014 All rights reserved.
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