Installation Manual

© Hexagon AB Commercial in Confidence 23
- Drain Protect: Battery supply voltage drops below critical threshold. This mode is
designed to use minimal power to increase supply battery life for starting the vehicle.
CAS System is not operational anymore.
A low power mode kicks in when a vehicle is detected to be “parked” i.e. in stand-still for
more than 10 minutes (determined by its GNSS location). Stand-still has a slightly lower
power consumption than when vehicle is moving. However, this has marginal impact on
battery life.
Depending on initial voltage measurement, 12V or 24 V system is detected by the system
and 12V or 24V thresholds are applied.
There is a hysteresis around voltage thresholds which means that the actual battery voltage
value is slightly different when the system is running normally and the battery voltage is
falling or when rising.
5.18.1 12 V Systems
Battery voltage thresholds are examples. Values are configurable.
5.18.2 24 V Systems
Battery state \ Move mode
Nominal Supply Voltage = 12 V
Driving
(typical values)
Parked
(typical values)
Comment
Normal
Battery normal
5-6W
0.42-0.5A
Display in Sleep
Mode
4-4.5 W
0.33 0.37 A
Normal behaviour
Power Save Mode
- Entering when battery voltage
drops below 11.7 V plus 12
hours.
- leaving when battery Voltage
rises again above 12.3V
Same as
normal
3.5 - 4W
0.30 - 0.33A
Power saving
Drain Protect
- Entering when battery voltage
drops below 11.2 V
- leaving when battery voltage
rises again above 12.0V
0.5 W
0.04 A
NO SAFETY
Red LED on QC1000
When voltage is back,
system turns on again.