Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 96)

Publication 1398-5.2 – PDF 1997
6-32 Interfaces
The serial interface of the drive uses the standard NRZ asynchronous
serial format, and supports both the RS-232 and the four wire RS-485
communications standards.
●
Standard baud rates include 1200, 2400, 4800, 9600 and 19200
baud. 9600 is the factory default setting.
●
Even, odd, and no parity generation/checking are supported. No
parity is the factory default setting.
●
The maximum number of ULTRA 100 Series drives allowable on
a four-wire RS-485 bus is 32.
●
The maximum length of an RS-232 cable is 15 meters (50 feet).
●
The maximum length of an RS-485 cable is 1220 meters (4000
feet) with 0.20 mm
2
(24 AWG) wire.
Cables are available in various lengths for connecting between the
serial port of a drive and a control unit, such as a PC. Appendix A,
“Options and Accessories” lists the cables, and the male and female
connectors for the cables.
Table 6.24 lists the pin-outs for J5.
Figure 6.39 RS-232/485 Interface Circuit
EXT INT
XMT
RCV
XMT-
XMT+
RCV+
RCV-
RS-232
RS-485
TRANSMIT
RECEIVE
TRANSMIT
ENABLE
Note: The shell of the connector is grounded to the chassis for shield
termination.
Table 6.24: J5 - Serial Port Connector Pin-Outs
Auxiliary
Encoder
Input Pin Number Description
RCV (+)
RCV (-) J5 - 1 (+)
J5 - 7 (-) RS-485 differential receiver input (to drive)
XMT (+)
XMT (-) J5 - 4 (+)
J5 - 8 (-) RS-485 differential transmitter output (from
drive)
COM J5 - 5 Common serial port interface
J5 - 6 Reserved
a