Connecting to a host using rs-485, 12 bluac5-si hardware manual – Applied Motion BLuAC5-Si User Manual
Page 12
12
BLuAC5-Si Hardware Manual
920-0035E
12/10/2014
Getting and Connecting an RS-485 4-wire adaptor to your PC
Model 117701 from
(800-831-4242) works well. This adaptor is for a 25
pin serial port. If you are like most people and have a 9 pin serial port on your PC, you will
also need to purchase Jameco cable 31721. Connect as follows:
adaptor drive
1
RX+
2
RX-
3
TX-
4
TX+
Set the switches for DCE and TxON,RxON. Don’t forget to plug in the DC power adaptor that
comes with the unit.
4-Wire RS-485 Figure #1
You can also connect the drive to the Host computer using only a 2-wire interface. In this case
you must first connect the TX+ to the RX+ and the TX- to the RX- on the servo drive before
connecting to the Host adaptor. Usually RS-485 2-wire interfaces are labeled “A” & “B”.
Connecting to a host using RS-485
The RS-485 port is not used for Si Programmer applications. You can skip this section
unless you are using your BLuAC5-Si in SCL or Q Programming mode.
RS-485/422 allows the communication cable to be long (more than 1000 feet). But the device
to which you connect must have an RS-485/422 port.
+RX- +TX- GND
to PC TX+
to PC TX-
to PC RX+
to PC RX-
to PC GND
Drive