Users Manual Part 2

LED Name Color Condition Indications
DC operations only
mode
LED off or Orange
– solid
1
DC In Status (DC input
and charging indicator)
dual color LED:
green/red
PSU is supplied from
DC input
Green - solid
battery is being charg-
ed
Green/red flashing
fast (2Hz)
backup battery or a
DC source supplies
the PSU and the
source voltage drops
below 43VDC ±3%
Green/red flashing
slow (0.5Hz), shift-
ing between red
and green
No source connected
to DC input or the DC
voltage is below 40,5V
Red - solid
AC operations only
mode
LED off or Orange
– solid
1
DC Out / Temp. (DC
output and temperature
indicator)
dual color LED:
green/red
DC output voltages are
present and within lim-
its
Green - solid
One or more of the
output voltages failed
Red - solid
Over temperature is
detected, 5 -10 C be-
fore shutdown
Red - flashes
PSU is in standby
mode
LED off
Fan # Status (Fan indi-
cator # near fan con-
nector #)
dual color LED:
green/red
Fan # programmed to
operate and Fan #
connected, operating
and fan failure signal is
high
Green - solid
Fan # connected but
programmed not to op-
erate or Fan # voltage
is out of limits or the
fan failure signal is low
Red - solid
Fan # not connected
and programmed not
to operate
No light
Fan # not connected,
at start up, but should
have been as per CAN
command
Red - flashing
LED indication in boot mode (firmware update through CAN)
1
in kits GMPN4227A and earlier
6802800U74-AP
Chapter 11: Power Supply Unit
362