Hirschmann DRAGON MACH4000 series - PSU Module Status

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Installation DRAGON MACH4000
Release 01 07/2018
1.7.2 PSU module status
Figure 11: PSU module status: location of the display elements on the device (rear
side of the device)
LED Display Color Activity Meaning
PWR Supply
voltage
— none At least one of the following cases applies:
 PSU module is not plugged in.
 There is no external supply voltage or
it is too low.
 No internal supply voltage.
 PSU module not operational.
green lights up At least one of the following cases applies:
 PSU module is plugged in.
 Boot procedure started
 Valid supply voltage connected.
red flashes 1 time a
period
At least one of the following cases applies:
 Supply voltage is too low
 Supply voltage too high
 PSU module fan failed
 Overheating warning
green/
red
flashing alternately Overload current protection mode
The PSU leaves the overload current
protection mode when the supply voltage
drops back into the permitted range.
See “General technical data” on page 60.
PWR