Emerson Epsilon Eb Series - Page 202

185
Installation
Figure 128: Epsilon RS-232 and RS-485 Internal Connections between the Command
Connector and the Serial Communication Connector
Caution
When connecting the serial port of your PC to the serial port of the drive, verify that your
PC’s ground is the same as the drive PE ground. Failure to do so can result in damage to
your PC and/or your drive.
Note
Communication errors can usually be avoided by powering the computer or host device
off of a convenience outlet that is mounted in the enclosure and whose neutral and ground
are wired to the same single ended point ground that the drives and controllers are using.
This is sometimes benefical even with battery powered computers.
Front View
Bottom View
RS-485 -
RS-485 + 6
12
21
To drive
processor.
RS-485 -
N/C
N/C
+ 5
Comm Common
7
6
5
4
8
9
RS-485 +
TX (232)
RX (232)
Shield
1
2
3
PE
Single point
ground
10 Ohm
J5
J2
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