Centron Technologies MS930A, Service Manual

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a. Fixture for remote switch mode
A fixture for remote switch mode is simple to make. It requires a single-pole/single-
throw (SPST) switch (e.g. a foot switch) and a 9-pin D-Sub male connector.
(1) Solder the switch at Pin 9 and Pin 5 of the 9-pin D-Sub connector.
(2) Solder to make short between Pin 4 and Pin 5 of the 9-pin D-Sub connector.
b. Fixture for remote circuit mode
A fixture for remote circuit mode will be a circuit board, and needs an external DC
power source. With this fixture, the ground of the fixture can be isolated with the
ground of the Segmentation System.
(1) To turn on the opto-coupler chip in the machine, 5-10 mA DC current should be
supplied between pin 7 (+) and pin 8 (-) of the 9-pin D-Sub connector.
Suggested serial resistance shall vary depending on power source voltage:
Source voltage 5 VDC 12 VDC 24 VDC
Resistance 300 - 560 ohm 1 - 1.8 Kohm 2 - 3.9 Kohm
(2) A confirmation signal is given between pin 1 (collector) and pin 6 (emitter) of the
photo-transistor in opto-coupler chip. Suggested serial resistance shall vary
depending on power source voltage. A same resistor as above can be used.
(3) Solder to make short between Pin 4 and Pin 5 at 9-pin D-Sub connector.
c. Fixture for remote command mode
For operation in remote command mode, a fixture may or may not be necessary. If
users want to design a specific fixture for use in an automated production line, refer to
Command List and Status Code List. All commands and status codes should be given
in ASCII code format.
If users want to use a desktop personal computer as a remote controller, no fixture but
a communication program is necessary. Users may design a communication program
for own use. But it will be a convenient way to use an open program provided by the
Microsoft. The file terminal.exe in Windows 3.1 or hypertrm.exe in Windows
95/98/2000/ME is a communication program good to use for this purpose.
Communication parameters should be set as the followings:
Baud rate : 19200 bps
Data bits : 8
Stop bits : 1
Parity : None
Flow control : None