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General: How do I ensure the same dimming control in the event of Driver failure?

If the driver fails the customer would need to replace it with an OEM driver to ensure the same type of dimming curve is retained. The dimmer module (XPW, nLight, SSI, etc) will retain the same programming as only the driver would be changing. The reason for using the OEM driver is that the driver determines the dimming curve of the fixture (see below). If a linear dimmed (Blue line) fixture had it's driver replaced with a logarithmic dimmed (red line), the 80% dim command would be interpreted very differently.  

As the 0-10VDC control device is not being replaced, it will continue to use the same programming regardless of driver replacement. 0-10VDC dimming operates by the fixture supplying a 10VDC signal that is then "'trimmed" by the control device. The trimmed voltage is then sent back to the driver as the control signal, with an inverse correlation. For example, trimming the 10VDC to 2VDC for 80% brightness (8VDC Trim).

 

In the event of a driver failure the customer would need to first call tech-support for troubleshooting assistance, then submit a claim through Post Sales to replace the failed equipment with the correct replacement.

 

For more information on 0-10V dimming, I would recommend looking over the 0-10V Best Practice document: https://www.acuitybrands.com/products/detail/257121/fresco/fresco-dxt/assemblies-for-high-performance-dmx-networks/-/media/products/fresco/257121/document/0-10vdc-best-practice_pdf.pdf

 

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