Operator's Manual for the DM100-2014 VDR
Copyright Danelec Marine A/S
4.1 Data Processing Unit (DPU)
The DPU is the main computer in the system. It is basically a PC, but it has been designed from
scratch in a completely different manner in order to withstand environmental stress which far
exceeds what an ordinary industrial PC can tolerate.
4.1.1 Power LEDs
BAT LED (blue)
Steady light
Battery fully charged
OK
Blinking (1Hz)
Charging battery
OK
Blinking (5Hz)
Battery is not detected
Error
Off
The battery switch on the DPU is “OFF” (Error)
AC LED (blue)
Steady light
AC power OK
OK
Off
AC power failed
Error
ERR LED (red)
Steady light
The internal power control circuit has
failed
Error
Off
The internal power control circuit is
operating
OK
OK LED (blue)
Steady light
Power to DPU present
OK
Off
No power to the DPU
Error (note 1)
4.1.2
AC breaker
The AC breaker is a combination of a fuse and a manually operated switch, i.e. it can be used to
manually switch off the AC power sources, but it will also pop out automatically if too much
current is drawn from the power source or if overvoltage is detected.
Warning: The AC breaker must be released (popped out) and the
battery switch on the front of the DPU must be in its “Off” position in
order to switch the unit fully off.
4.1.3 AC inlet
The main power source for the VDR is the ship’s AC (110V-230V).
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