34
Note
1. When using analog input, filter capacitor or common mode inductor can be installed between the input
signal and GND.
2. The voltage of the analog input signal shall not exceed 12V.
3. The analog input/output signal is vulnerable to external interference. Shielded cable shall be used and
reliably grounded, and the wiring length shall be as short as possible.
4. The analog output terminal can withstand the voltage no more than 12V.
Communication interface wiring
MV600 drive provides the RS485 serial communication interface for the users. A control system of single
host/single slave or single host/multiple slaves can be created through the following wiring methods. With the
host device (PC or PLC) software, real time monitoring, remote control, auto control and more complicated
running control (e.g., infinite multi-stage PLC running) can be realized on the drive within the network.
1. Connection of the drive and the host device with RS485 interface:
Fig. 3-10 RS485 communication wiring
2. Connection of the drive and the host device with RS232 interface:
Fig. 3-11 RS485-（RS485/232）-RS232 communication wiring
3. Wiring for connecting several drives in the same RS485 system:
Signal -
RS485-
Signal +
RS485+
FunctionTerminal
Signal -
RS485-
Si
nal +
RS485+
Function
Terminal
+5V power
+5V
DATA TXD
TXD
DATA RXD
RXD
Power GND
GND
Pin No.Signal
Enclosure
PE
2RXD
3TXD
5GND
4DTR
6DSR
9RI
1CD
7RTS
8CTS
Shield cable
MV600
RS485/232 converter
Host
RS232(DB9)
Signal GND
GND
Signal GND
GND
PE Enclosure
Function Terminal
Function Terminal
Signal-
RS485-
RS485+
MV600
Signal GND
GND
Function
Terminal
Signal -
RS485-
Signal +
RS485+
Host
Signal GND
GND
Shield cable
PE
Enclosure
Signal+
Shield cable
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