Parker Hannifin
Chapter 7 Troubleshooting 159
Reconfigure the Drive
To verify proper configuration, you may wish to reconfigure the drive. Pay
particular attention to selecting proper configuration settings for the motor
that you have installed, as motor configuration problems can cause a variety
of errors. Download the new configuration to the drive; the changes take
effect after you send the RESET command or cycle power.
RS-232/485 Communication Problems If you cannot establish RS-232 or RS-485 communications, the next sections
give instructions for procedures to help isolate problems.
RS-232
RS-485 *
Rx, Tx, Gnd 2-wire plus ground
(Talk+, Talk–, Gnd)
9600 baud 9600 baud
8 data bits 8 data bits
1 stop bit 1 stop bit
No parity No parity
Full-duplex Half-duplex
* Twisted pair cabling recommended
(e.g. Belden 9842)
Table 48 Terminal Emulator Configuration for RS-232/485 Communication
Ensure the RS-232 or RS-485 wiring is connected prior to powering up the
Aries drive. When applying power, the drive will detect either RS-232 or RS-
485 and configure accordingly.
Testing the COM Port
Using the Aries Support Tool, you can test COM port connections.
► Under Communications, select the COM port and then click Test.
RS-232 communications might require that you use a null modem cable.
For information about connecting to the COM port, see “Establishing
Communications” on page 74. Additionally, refer to the pinout diagram
for the RS-232/485 connector, also located on page 74.