Chapter 3: I/O Signal Interface; Input Signals - Unitek Miyachi LW250 Operation, Maintenance And Service Manual

Input Signals

Signal Name
Guide Beam
Trouble reset
Control changeover
HV-ON/OFF
Laser start*
Laser stop
Emergency stop
Beam Selection 1,2,3,4
Schedule 1, 2, 4, 8
COM
Shutter Open
990-605 REV B: May, 1997
CHAPTER 3
I/O SIGNAL INTERFACE
Outputs the diode laser guide beam
Closed: Trouble is reset.
Open: Laser is controlled with control panel or laser
controller.
Closed: Laser is controlled with external input signals.
Closed: High voltage is turned on.
Open: High voltage is turned off.
Closed: Flash lamp flashes and laser beam is output.
Open: Laser beam is turned off.
Open: Emergency stop is applied.
Selection for the laser beam output ports.
Closed: 16 schedules from Schedule 0 to Schedule 15 can
be set by inputting Schedules 1,2 4 and 8 by binary codes.
Used as common line input signals.
Closed: Shutter opens and laser beam can be output.
*NOTE: When multiple welders are used simultaneously,
use a transistor signal as the laser start signal.
LW250 PULSED Nd: YAG LASER
Contents
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