This manual relates to SBX Firmware V4.0.x
This manual describes the operation modes of the SBX solar charger module used in solar powered radar sensors like PCR2-ODS or TCR-xSS.
After Hardware Init the application code takes control. Following state chart shows the application states.
|State||Description||Load||Heater||Charger||LED Batt||LED Error||LED Charger|
|Init||Hardware checks running||Off||Off||Standby||Off||Off||Off|
|Off||Battery Voltage low
Load is switched off
|Off||On when >4W and cold||Run||Warn||Off||PWM|
|On||Battery Voltage nominal||On||On when >4W and cold||Run||PWM(*)||Off||PWM|
|Hot||Battery Temperature high
|Error||Battery not connected
(*) 100% is always on, 0% is allways off, 50% is 1s on, 1s off
We decided to not switching on all LEDs all the time to safe energy (while nobody can see the LEDs as SBX is normaly in a box)
After pressing the User Button the LED Batt will display following states for about 30s.
|PWM (0-100%)||Battery Voltage (Min-Nominal Voltage)|
|Blinking while LED Error is off||Battery Warning (too cold, too hot)|
|Blinking while LED Error is on||Battery Error (disconnected, NTC broken)|
The LED Charger is always activated displaying the Input Power
|PWM (0-100%)||Charging Energy|
LED Error is on after the User Button has been pressed and there is a serious hardware problem with the battery or charger.
The charger starts to operate by its own. If there is a input voltage drop, the charger will re-initialize.