Baldor NXE100-1608Dx, Installation Manual

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Input / Output 4-23 MN1941
(cable) being used. Unmatched impedance causes the transmitted signal to not be fully
absorbed by the load. This causes a portion of the signal to be reflected back into the
transmission line as noise. If the source impedance, transmission line impedance, and load
impedance are all equal, the reflections (noise) are eliminated. Termination resistors increase the
load current and sometimes change the bias requirements and increase the complexity of the
system.
4.5.5 Connecting serial Baldor HMI Operator Panels
Serial Baldor HMI Operator Panels use a 15-pin male D-type connector (marked PLC PORT),
but the NextMove
e 100 Serial connector uses a 9-pin male D-type connector. The
NextMove e 100 may be connected as shown in Figure 24:
7 RTS
8 CTS
3 TXD
2 RXD
5 GND
1
RXD 2
TXD 3
GND 5
Baldor HMI
PLC PORT
NextMove e 100
Serial Port
Twisted pair
Figure 24 - RS232 cable wiring
Alternatively, the Baldor HMI panel may be connected using RS485/422, as shown in Figure 25:
8 RXA
2 RXB
7 TXA
3 TXB
5 GND
1
RXA 15
RXB 7
GND 5
Baldor HMI
PLC PORT
TXA 14
TXB 6
Twisted pair
NextMove e 100
Serial Port
Figure 25 - RS485/422 cable wiring