Novanta i401, Руководство пользователя

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INITIAL START-UP PAGE | 56
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.
4 Turn on the chiller and set the temperature setpoint between 18 °C–22 °C. Verify that the chiller is
delivering a flow rate of 15.1 lpm (4 GPM) at less than 414 kPa (60 PSI) of pressure. Examine all
cooling connections carefully and ensure that they do not leak.
5
Start purge gas flow at a rate of 0.85–1.7 m3/hr (30–60 SCFH, Standard Cubic Feet per Hour) at a pressure not to exceed 34.5
kPa (5 PSI) If a flowmeter is not available, set a purge pressure between 13.8–34.5 kPa (2–5 PSI).
6
Ensure that your PWM controller is set to zero percent output (0.0%).
7
Turn on the +48 VDC power supply.
If the factory-wired Quick Start Plug is installed, the INT indicator will illuminate green, the SHT indicator
will illuminate blue, and the RDY LED will illuminate yellow. The TMP indicator will illuminate green if laser
temperature is within safe operating limits.
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.
Caution: Possible Equipment Damage
Do not exceed a gas purge pressure of 34.5 kPa (5 PSI). Excessive pressure may damage the
purge assembly or other internal laser components.
Do not use argon as a purge gas. Use only nitrogen or clean, dry air as described in Table 1-4,
Purge gas specifications.