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Detailed Descriptions
Detailed Descriptions
Detailed Descriptions
7.5.2 MECHANISM
LD Drive Board
The LD Unit is provided with two LD drive board. The beam system is a 1 beam type. The LD drive board comprises an LD (laser diode), PD (photodiode) and LD control unit.
The LD outputs the laser light to the PCU.
The PD continuously detects laser light from LD, and outputs it to the LD control unit.
The LD control unit adjusts the light amount of the LD based on the output signal of the PD. LD control board adjustment is not required in the field.
LD Safety Switch
To prevent the laser beam from turning on when the front cover or right door is open, the 5V supply to the LD drive board is interrupted when the interlock switch is open.
Circuit Diagram
