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4.7.3 External control mode
Modulation Mode:
When the duty cycle of the internal pulse is set to 100%, the laser
operates in external modulation mode.The laser is controlledby the user's "modulation" signal
provided by the external MOD interface. For the time sequencediagram, see [4.7.5 Control
sequence diagram].
Gate Mode:
When the duty cycle of the internal pulse is less than 100%, the laser operates
in Gate mode. The laser is controlledby the MOD signal and internal frequency.MOD signal is
used to start and stop internal pulse signal. For the time sequencediagram, see [4.7.5 Control
sequence diagram].
The laser operates on external modulation mode by default.
5) Turn the key switch to the “REM” position (or turn the key switch to OFF, short the
SERVICE interface PIN 2, 3) and the “Power” indicator on the front panel light on;
6) Wait for 10s until the internal main control board circuit initialization is completed.
7) Set the power of the laser (the power is set by 0-10V analog single when the AD mode
is enabled, and the power is set by the PC software when the AD mode is off.
）
;
8) Give the emission enable signal in one of the following ways:
Press the “Laser” button (enable hardware emission)on the front panel;
PIN 18, 20 of the DB25 control interface is applied to 24V (enable hardware
emission);
Send the start or stop emitting command (enable hardware emission) to control the
emission byRaycus software;
9)
The laser is controlledby the user's "modulation" signal provided by the external MOD
interface See 4.8 to get the process of laser shutting down.
