Subject to modifications
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PS3500 N+1 Redundant Power Supply
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5.6 Internal diagnostics, recovery, and LEDs
Overvoltage (OV), overcurrent (OC) and overheat (OHT) conditions lead to an output
shutdown of the unit. Also, they create an alarm signal at the internal relay. Undervoltage
(UV) creates an alarm, but does not shutdown the unit.
During shutdown mode, the unit continuously checks for the actual failure condition to go
away. If that is the case, the unit would go back to normal operation. However, this behavior
must not impact the remaining running units in an N+1 redundant system.
There are three LEDs:
• Power good (green)
• Fault (red)
• Alarm (red)
