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10.2
Accumulator Back-up Pack
SCUs with the back-up accumulator feature can be equipped with an optional accumulator back-up pack.
The identification label of the accumulator back-up pack is placed on the front of the accumulator back-up pack.
Accumulator Status Indi
-
cator
Meaning
Visual Signal and Audio Alert Signal
POWER FAIL MODE
or
Accumulator TOO LOW TO USE
1 status of Accumulator Status Indicator
Power Fail Alert (2-tone alert, sounds until bac-
kup memory is erased):
when the backup accumulator is
not fitted or is switched off (loss of
mains power)
when SCU is running from accu-
mulator if the accumulator is too
low to use
CHARGE FAULT
or
Accumulator FAULT
(SCU is connected to the mains)
2 statuses of Accumulator Status Indicator in
repetitive sequence (for 5 seconds not lit LEDs
and after there are 3 flashes of the LEDs)
no audio alert
Accumulator CORRECTLY FITTED
(SCU is connected to the mains)
2 statuses of Accumulator Status Indicator in
sequence (LEDs are lit for 2 seconds)
2 seconds long beep
To mute the audio alert signal:
Mute audio alert signal (see „Mute“ - chapter 11.2.2).
Fig.
Identification label of the accumulator back-up pack
