RS-485 Connections For Multiple Drives
ZIPLink™ RS-485 communication boards (ZL-CDM-RJ12X4 or ZL-CDM-RJ12X10)
provide an easy means to break out the RS-485 signal to several drives at one
location, which creates a star configuration. However, the transmission errors are
negligible, so this configuration is acceptable for proper operation of the VFDs.
RS-485 Direct Connections
Termination Resistors are required on both ends of RS-485 networks; especially on long
runs.
Select resistors that match the impedance rating of the cable (between 100 and 500 Ω ).
Recommended RS-485 cable: Belden 9842 or equivalent.
CLICK C0-02: RS-485 Connection Wiring
1
+
2
–
3
LG
CLICK C0-02
CPU Port 3
NOTE:
(2) ZL-RJ12-CBL-2P cables can be
used for distances of 2m (6.6ft) or less
D0-DCM/DL06/DL260: RS-485 Connection Wiring
P1-
DL06/DL260/
HD15
D0-DCM Port 2
plug
15-pin HD
6 RXD–
15
7 GND
12
6
14
9 TXD+
10 TXD–
11
1
11 RTS+
13
12 RTS–
9
5
13 RXD+
10
14 CTS+
6
15
15 CTS–
7
1st Ed. Rev. D
05/2013
Chapter 5: DURA
120 Termination Resistor
at both ends of network
TXD+ / RXD+
TXD– / RXD–
Signal GND
Connect shield
to signal ground
at one end only
– for single drive at distance of 2 meters (6.6 ft) or less
GS-485HD15-CBL-2
AutomationDirect
ZIPLink Cable
Drain + Braid
DURA
PULSE
PULSE
MODBUS Communications
GS3
Comm Port
4 SG +
3 SG -
2 GND
Node 1
GS3
Comm Port
4 SG +
3 SG -
2 GND
Node 2
GS3 Comm Port
P2-
RJ12
plug
Yellow 4
4 SG +
Blue 3
3 SG –
Black 2
2 GND
AC Drive User Manual
RJ12
Receptacle
6
1
5–15
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