Synrad 32-1 - Beam Delivery Optics; Possible Causes

SYNRAD® 32-1 Operator’s Manual Version 2.2
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Troubleshooting
Maintenance/
Troubleshooting
Possible Causes:
A fault shutdown has occurred. Pin 1 on the DB-9 Connector is at 0 VDC in reference to
Pin 2 (Pin 1 is at +15 VDC during normal operation).
An over temperature, overvoltage/undervoltage, or RF circuitry failure has occurred.
Correct the problem(s), then remove power from the laser for 30-seconds. Re-apply power (if
a Keyswitch has been added through the DB-9 jumper plug), cycle the Keyswitch or Remote
Keyswitch.
Beam delivery optics
Symptom:
The laser appears to slowly lose power over time; laser output power must be in-
creased to maintain previous performance.
Possible Causes:
Beam delivery optics are coated by vapor residue or debris.
Shut down the laser and carefully inspect each optic in the beam delivery path, including the
laser’s output coupler. Remember that optics are fragile and must be handled carefully; pref-
erably by the mounting ring only. If the optic requires cleaning, refer to the required cleaning
materials table earlier in this chapter, then refer back to Maintenance for cleaning instructions.
Use only recommended cleaning materials to prevent scratching delicate optical surfaces.
If the focusing optic is pitted, it must be replaced immediately. The laser’s high power density
will cause pits or debris on the lens to absorb enough energy that the lens may crack. If this
happens, other optics in the beam path may be contaminated or damaged as well.
When the application requires air (instead of nitrogen or argon) as an assist gas, we recom-
mend the use of breathing quality air available in cylinders from a welding supply company.
Because compressed shop air contains minute particles of oil and other contaminants that
will damage optical surfaces, it must be carefully ltered and dried before use as a purge or
assist gas. Refer to Assist gas purity specications, in the Technical Reference chapter for lter-
ing specications.
Caution
If you operate your laser or marking head in a dirty or dusty en-
vironment, contact SYNRAD® about the risks of doing so and the
precautions you can take to increase the longevity of your laser.
Possible
Equipment
Damage