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3. ELECTRICAL INSTALLATION 31
Baud Rate
Use system variable BR to alter the baud rate of serial communications. Any change made
to the baud rate will only take effect following a save (SV) and system reset or power cycle.
Reset to RS232 Mode
To reset the drive to RS232 mode and to return to factory settings, remove power from the
drive, connect X3 pin 2 to GND and restore power.
CAUTION
This will erase ALL of your user settings and programs in volatile memory. The non-
volatile memory will not be overwritten until a save command is issued.
1
5
PC RS232 socket Interface
X3 Socket
Serial connector
plug
Serial connector
socket
Back of
mating plug
Back of
mating plug
Back of
mating socket
Back of
mating plug
6
9
Drive
GND
CONN.
SHELL
CONN.
SHELL
Rx
Tx
5
1
9
6
X3 Socket
5
1
9
6
1
1425
13
4 Rx
5 Tx
3 GND
3 Tx
2 Rx
5 GND
X3SERIAL
Terminal RS232 socket Interface
Terminal/PC
GND
Rx
Tx
4 Rx
5 Tx
3 GND
2 Tx
3 Rx
7 GND
X3
SERIAL
Figure 3-11. X3 D-type Connector RS232 Connections
Inter-drive RS232 Connections
Use the RJ45 connectors X6 and X7 to inter-connect drives, see RS232 Daisy Chain later in
this section. Always make the primary connection via D-type X3.