A-B Ultra5000 Intelligent Servo Drives Routing High
Understanding Serial Interfaces
The Ultra5000 contains two identical serial port connectors (Main Serial Port
CN3A and Auxiliary Serial Port CN3B) that implement the standard NRZ
asynchronous serial format, and support RS-232. RS-422. and RS-485
communication standards.
Standard baud rates include 1.200. 2.400. 4.800. 9.600. 19.200. and 38.400
baud. Data lengths of 7 and 8 bits are supported.
The connector pinout dedicates separate pins for the RS-232 and RS-422/
RS-485 signals, so that the communication standard can be changed by just
using a different cable. Refer to Figure 2.7 for the serial interface hardware
configuration.
Routing High and Low Voltage Cables
Be aware that when you connect and route power and signal wiring on a
machine or system, radiated noise from nearby relays (relay coils should have
surge suppressors), transformers, and other electronic drives can be induced
into motor or encoder feedback, communications, or other sensitive, low
voltage signals. This can cause system faults and communication problems. To
minimize the levels of radiated noise, route machine power and signal lines
separately.