Sensor Max. Resistance:
0 to 10k Rpullup = 1k
¼
W
10k to 20k Rsenor = 2k2
¼
W
R1 =
0.00015
(V
sensor max
- 5 V DC)
10
Halo QUBE 2
|
Installation Guide V1.0
Analogue Inputs
These connect to devices that have a variable voltage output. As the input voltage range (0 to 5
V DC) may not match the sensors range, the input may have to be scaled. In order to scale the
voltages correctly, you should calculate the maximum sensor voltage to scale to 5 V DC at the
ConEX input.
Digital Outputs
These outputs are an “open collector” transistor type arrangement. The outputs will pull low when
activated. The outputs have an over current trip. If tripped the output must be changed to the off
state, or have a power cycle to reset the current trip.
Battery Backup connections
The Qube 2 has the facility to connect an external battery to allow for a battery backup operation.
This allows the Qube 2 to normally run off the main supply, and also trickle-charge the backup
battery. When the main power fails or is disconnected, the Qube 2 will continue to run by drawing
power from the backup battery. (e.g. A gel cell type battery).
Connect the orange wire directly to the positive of the backup battery, and ground the negative side
of the battery at the same point where the Qube 2’s black wire is grounded. If the Qube 2 is powered
off 24 V DC, then the backup battery must also be 24 V DC. If powered from 12 V DC the battery
must be 12 V DC.
Note: As the charging circuit is simplistic, the backup battery will only fully charge when the vehicle is operating (ie. the
vehicle’s alternator is supplying the higher charging voltage.)
