Parameters
FC
+24 V
+24 V
D IN
D IN
D IN
COM
D IN
D IN
D IN
D IN
+10 V
A IN
A IN
COM
A OUT
COM
R1
R2
12
13
18
19
20
27
29
32
33
37
50
53
54
55
42
39
01
02
03
04
05
06
-
61
68
69
RS-485
+
130BB685.10
Function
Setting
Parameter 8-30 P
rotocol
FC*
Parameter 8-31 A
ddress
1*
Parameter 8-32 B
aud Rate
9600*
* = Default value
Notes/comments:
Select protocol, address, and
baud rate in the above
mentioned parameters.
D IN 37 is an option.
Table 3.23 RS485 Network Connection
3.9.2 Network Connection
One or more frequency converters can be connected to a
control (or master) using the RS485 standardised interface.
Terminal 68 is connected to the P signal (TX+, RX+), while
terminal 69 is connected to the N signal (TX-, RX-). See
drawings in
chapter 3.6.1 Wiring Schematic
.
If more than 1 frequency converter is connected to a
master, use parallel connections.
130BA060.11
68 69
68 69
68 69
RS 485
RS 232
USB
+
-
Illustration 3.42 Parallel Connections
To avoid potential equalising currents in the screen, wire
according to
.
130BB021.10
12 13 18 19 27 29 32 33 20 37
Remove jumper to enable Safe Stop
61 68 69
39 42 50 53 54 55
Illustration 3.43 Control Card Terminals
3.9.3 RS485 Bus Termination
Terminate RS485 bus with a resistor network at both ends.
For this purpose, set switch S801 on the control card to
ON.
Set the communication protocol to
parameter 8-30 Protocol
.
System Integration
VLT
®
Refrigeration Drive FC 103
72
Danfoss A/S © 08/2015 All rights reserved.
MG16G202
3
3
Содержание VLT FC 103
Страница 2: ......
Страница 159: ...Index Design Guide MG16G202 Danfoss A S 08 2015 All rights reserved 157...