Baldor MDH1A05TB-RC23, Installation Manual

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4-18 Input / Output MN1901
4.4.4 Using RS232 cable
CAUTION : The serial connector on the MintDrive
II
(X6) can be configured as either
RS232 or RS485 / RS422. Pin 9 is used to carry +8V for powering
certain Baldor keypad peripherals. Ensure that pin 9 is not connected to
earth/ground or to equipment that could be damaged by the +8V supply.
A suitable cable is available from Baldor, catalog number CBL001-501.
Front panel DIP switch 10 must be in the Off position to select RS232 operation.
The MintDrive
II
has a full-duplex RS232 serial port with the following preset configuration:
H
57.6Kbaud
H
1 start bit
H
8 data bits
H
1 stop bit
H
No parity
H
Hardware handshaking lines (RS232) RTS and CTS must be connected.
This configuration can be changed if required. The RS232 connections are brought out onto a
9-pin male D-type connector. The RS232 port is configured as a DTE (Data Terminal
Equipment) unit. Both the output and input circuitry are single ended and operate between
±12V. The port is capable of operation at up to 57.6Kbaud.
MintDrive
II
(DTE)
9-pin
Computer
COM Port
(DCE / DTE)
X6
RXD 2
TXD 3
GND 5
2 RXD
3 TXD
5 GND
RTS 7
CTS 8
7 RTS
8 CTS
COM
Connect overall
shield to connector
backshell.
Figure 41 - RS232 serial port connections
The maximum recommended cable length is 3m (10ft) at 57.6KBaud (the factory preset rate).
When using lower Baud rates, longer cable lengths may be used up to maximum of 15m (49ft)
at 9600 Baud.