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Service manual CS3000
Chapter 3: Power unit KE-2 3-44
The circuit boards of the central unit
Document no.:
S-4-007.875/E
Prepared:
1995-03-17 Fia
Revision:
R2 2002-08-14 BM
© 1995, Consilium Marine AB
Power unit KE-2
General
The power unit KE-2 supplies the fire alarm system with the necessary power,
either from mains, from batteries or from an other emergency source.
The power unit is under continuos supervision and controlled by the central
unit, which controls voltages, currents and certain faults. Important status data
are indicated by LEDs.
The KE-2 battery has a programmable charging characteristic consisting of
five different charging phases: soft start, constant current, constant voltage,
equalisation and maintenance charging.
Indications
There are seven LEDs on the front panel of the power unit.
LED no.
Colour
Function
1 Green
Mains
voltage
2 Green
Emergency
voltage
3 Green:
Rapid
charge
4
Yellow
General fault indication
5 Yellow
Battery
fault
6 Yellow
Mains/emergency
fault
7
Yellow
Earth fault indication