What is the overvoltage threshold for a DRd?
The processor in my DRd rack is giving me an overvoltage error, and I don't know how to determine if the voltage is actually too high.
Description/Explanation of Issue
Generally speaking, a true overvoltage error will be generated when the incoming voltage on one or more phases of power is ~10% higher than the rated voltage. In a 120V rack, this would correspond to ~132V; in a 277V rack, this would correspond to ~304V. The overvoltage is detected by the dimming engine mounted in the top of the rack, which then triggers the error in the processor.
- Perform a full rack powercycle by shutting off the power input to the rack, waiting 30 seconds, and powering back up to see if the error clears.
- If not, have a certified electrician meter the voltage of the incoming power on each phase, and between phases.
- If the voltage is within acceptable bounds, power down the rack, remove the dimming engine, and make sure all wire harnesses are fully seated, and undamaged.
- Failing all of the above, please contact ETC Technical Services to continue troubleshooting.