Tritex 1 Installation and Setup
53
09/27/12
PN: 27666
Exlar Corporation
Rev. M
952-500-6200M
PC Communications
When using the Expert software for set-up and diagnostics an RS485 converter will be required
to interface between one of the PC communication ports and the RS-485. This can be either a
USB to 485 converter, such as the B&B Electronics® USOTL4 or an RS 232 to RS485
converter, such as the 485OT9L. See Accessories section.
It is important that the RS485 REF is connected to the circuit common of the
converters 485 output. Failure to connect could cause damage to the drive,
the converter or the PC port.
Typical RS 485 connection to external converter
Connection to B&B USOTL4 using TTCOM cable
CAUTION
RS485 +
USB to
485
or
232 to 485
Converter
485 -
485 +
Circuit
GND
RS485 -
RS485 REF
B&B Electronics
USOTL4
or similar
Drain
Drain connected
internally to PE
GND
RS485 +
RS485 -
RS485 REF
USB to
485
Converter
485A (-)
485 B(+)
GND
B&B Electronics
USOTL4
TTCOM-xxx
Exlar Cable
Black
Brown
Blue
Drain
Drain connected
internally to PE
GND