Thank you for all comments and help. I've already ensured that all
panels are locked, and the analog interface connector has already been
modified to include two small wires that are strapped onto external pins
on the rear housing of the laser supply unit, for remote turn on of the
The 'External Interlock' message has disappeared....BUT....now after the
Start Delay has counted to zero, the laser switches off and another
error message appears: "Laser Off" followed by "Low Starter Volt". Now,
this laser power supply unit is brand new so why isn't the starter
getting any voltage??
Please advice!! I'm getting really frustrated with this machine here!!!
Thanks in advance,
Rapid Prototype & Manufacturing Center
Research & Development Dept.
> From: TAN CHOR ANN, RP[SMTP:TANCA@proton.com.my]
> Sent: Monday, 22 February 1999 18:56
> To: 'email@example.com'
> Subject: SLA-500 Laser problem
> Importance: High
> Dear list,
> Can any 3D Systems SLA500 user out there tell me the meaning of the
> message "External Interlock" that appears whenever i try to fire up
> laser unit of our SLA500?? (We're using a Coherent laser unit)
> The laser chiller unit and power supply is working fine, and
> else seems to be in working order, but this External Interlock is
> preventing our machine's laser from firing up as it should.
> Any help is greatly appreciated.
> Raymond Tan
> Rapid Prototype & Manufacturing Center
> Research & Development Dept.
> PROTON Bhd.
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