Novanta i401, Руководство пользователя

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INITIAL START-UP PAGE | 53
Important Note: For safety reasons, the i401 laser contains an internal electromechanical shutter
assembly that is controlled by the Shutter Open Request input signal (Pin 10 on the DB-15 User I/O
connector). The shutter opens only when a Shutter Open Request signal is applied and the RDY LED is
on (Remote Interlock input active and no over-temperature fault exists). Use the interlock input to
provide maximum operator safety. When the Remote Interlock input is opened (voltage source
removed), the internal shutter automatically closes to block the beam path, the RDY LED turns Off, the
SHT LED turns Off (regardless of the state of the Shutter Open Request input), and all DC power is
removed from the RF boards.
To initiate lasing, apply a voltage in the range of ±5–24 VDC to the Remote Interlock input. This causes
the INT LED to turn green, the RDY indicator to turn yellow, and sends DC power to the laser’s RF
boards, allowing internal tickle pulses to reach the tube. Apply a Shutter Open Request signal (a voltage
in the range of ±5–24 VDC) to open the physical shutter assembly (it takes approximately 30 ms for the
electromechanical shutter to fully open) and then apply a PWM Command signal to begin lasing.
Removing the Shutter Open Request signal causes the shutter to close and block the beam path while
simultaneously disabling the PWM signal, leaving internal tickle enabled to supply tickle signals as
required to maintain tube readiness.
With a UC-2000 Controller
Before your
i
401 laser is put into service for the first time, its functionality should be verified. Follow this
procedure to verify the laser system is operating at optimum performance. For this procedure, use the
UC-2000 as a stand-alone controller; do not attempt to control the laser or UC-2000 externally.
Important Note: When performing the initial start-up, you must first connect the Quick Start Plug
or provide the required Remote Interlock and Shutter Open Request signals to the User I/O
connector. See User I/O connections in the Technical Reference section for pinouts and signal
descriptions.
Starting auxiliary equipment
1 Ensure that all personnel in the area are wearing protective eyewear.
2 Remove the red self-adhesive aperture seal from the laser faceplate.
3 Place a beam block 0.5 meters (20 in) from the laser aperture to prevent the beam from traveling
beyond the work area.
Caution: Possible Equipment Damage
Remove the aperture seal before firing the laser. The self-adhesive seal is installed to prevent dust
from entering the laser housing during shipment and installation and must be removed before
operation. During laser operation, use a gas purge to keep dust and vapor out of the beam path.