Integrating UV Spot Curing into an Automated Line
Manual triggering doesn’t scale. Once cure is a fixtured station on a line, you want the machine to fire on a signal, hold an exact programmed dose every cycle, and respect the cell’s interlocks. That means choosing a system built for external control and wiring it to your PLC.
An automated cell needs deterministic dose and machine control: a trigger input from the PLC, a fixed programmed exposure so every part gets the identical dose, and interlocks so the source can’t fire unsafely. LED systems suit this best, instant on/off, no warm-up, and a command interface.
The SkyBeam is built for line integration: instant on/off with no lamp warm-up, independently programmed per-channel timers for a repeatable dose, and RS-232 plus PLC/interlock wiring for external control. The SunSpot 2 also integrates via its PLC I/O cable where a broad-spectrum arc is required.
Step by Step
- 1 Choose an externally-controllable system. Pick a system with a command/trigger interface. The SkyBeam’s instant on/off and RS-232/PLC control make it the natural fit; use the SunSpot 2 with its PLC I/O cable when the chemistry needs broad spectrum.
- 2 Program the exposure. Set a fixed exposure time per channel so every cycle delivers the identical dose. Deterministic dose is the whole point of automating the cure.
- 3 Wire the trigger and interlocks. Connect the PLC trigger input and any cell interlocks so the source fires on command and cannot fire when the guard is open or a part is absent.
- 4 Validate the delivered dose. Measure intensity at the working plane with a radiometer and confirm the programmed time hits the target dose, then re-check on a maintenance schedule.
- 5 Add drift monitoring. Because an automated line hides a slowly aging source, schedule periodic radiometer checks so guide or lamp drift is caught before it makes rejects.
Common Pitfalls
- Automating a source that needs warm-up, an LED system’s instant on/off is what makes deterministic cycle timing possible.
- Skipping interlocks, an automated UV source must be unable to fire into an open cell.
- Set-and-forget dose, an automated line masks drift; schedule radiometer checks.
Questions
Which UV curing system integrates with a PLC or automated line?
The SkyBeam is built for it, instant on/off, programmable per-channel timers, and RS-232 plus PLC/interlock control. The SunSpot 2 also integrates through its PLC I/O control cable (UV2156) when a broad-spectrum arc source is required.
How do I get a repeatable dose on an automated cure station?
Program a fixed exposure time so every cycle is identical, trigger it from the PLC, and validate the delivered dose with a radiometer at the working plane. Re-check periodically so source drift doesn’t silently change the dose.
Can the SunSpot 2 be triggered externally?
Yes, via its PLC I/O control cable (UV2156) and shutter control, so a broad-spectrum arc cure can be fired and gated by a line controller. For pure LED automation the SkyBeam’s command interface is more direct.
