Danfoss VLT Ea4, Руководство по эксплуатации

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Ability to select from the following communication protocols:
FC, FC MC, FC option
Modbus RTU
Metasys N2
FLN
BACnet
Functions can be programmed remotely using the protocol software and RS485 connection or in parameter group 8-** Commu-
nications and Options .
Selecting a specific communication protocol changes various default parameter settings to match the specifications of the pro-
tocol, making more protocol-specific parameters available.
Option cards for the drive are available to provide more communication protocols. See the option card documentation for in-
stallation and operation instructions.
A switch (BUS TER) is provided on the control card for bus termination resistance.
5.13.2 Configuring RS485 Serial Communication
Procedure
Connect RS485 serial communication wiring to terminals (+)68 and (-)69.
Use shielded serial communication cable (recommended).
See the
Connecting to Ground
section for proper grounding.
Select the following parameter settings:
Protocol type in parameter 8-30 Protocol .
Drive address in parameter 8-31 Address .
Baud rate in parameter 8-32 Baud Rate .
Example
61
68
69
+
e3
0b
b4
89
.1
0
RS485
Illustration 19: Serial Communication Wiring Diagram
5.14 Selecting the Voltage/Current Input Signal
The analog input terminals 53 and 54 allow setting of input signal to voltage (0–10 V) or current (0/4–20 mA).
Parameter 16-61 Terminal 53 Switch Setting shows the setting for A53.
Parameter 16-63 Terminal 54 Switch Setting shows the setting for A54.
Procedure
Disconnect power to the drive.
Remove the LCP (local control panel). See the
Local Control Panel (LCP) section.
Remove any optional equipment covering the switches.
AQ434333248451en-000101 / 130R1286 34 | Danfoss A/S © 2023.01
Electrical Installation
VLT Ea4 Parallel Drive Modules
Operating Guide