The contactor in your Wall Connector turns power on and off to you vehicle, if it is closed, power is on and avalible for your vehicle to charge.
A session starts when the vehicle is plugged in and stops when the car is unplugged, whether or not your vehicle is charging.
Session Time refers to the total time of the current session or last session if one is not currently active.
Session Energy is the total amount of energy used by the vehicle during a session, and may report higher energy usage than the vehicle. This is because along with energy used to charge the battery, it may also include energy used to precondition the vehicle, battery conditioning, air conditioning, cabin overheat protection, and any other losses.
Current A/B/C refers to current (power) drawn by the Wall Connector on each of the 3 different inputs, and will be different depending on your configuration.
For example: North America “Single Phase” Wall Connectors should draw power on A + B. Everywhere else the “Three Phase” Wall Connectors will draw power on A,B, and C in 3 phase configuration, and only on A in single phase configuration.
Voltage A/B/C refers to the voltage measured by the Wall Connector on each of the 3 different inputs, and will be different depending on your configuration.
For example: North America “Single Phase” Wall Connectors will measure voltage across A + B. Everywhere else the “Three Phase” Wall Connectors will measure voltage across A,B, and C in 3 phase configuration, and only on A in single phase configuration.
PCBA (or PCB Ambient) temperature is believed to be the ambient temperature measurement of the internal circuit board and used to help calibrate the input wiring contactless temperature sensor (Input Thermopile).
Handle temperature refers to the measurement of the handle or plug that connects to your vehicle. It serves the purpose of monitoring the temperature during charging to prevent overheating. If overheating occurs, your Wall Connector will automatically reduce or halt charging, displaying the error (40) "Handle Temperature Foldback."
Additionally, the app might display a warning if the sensor is potentially faulty. A faulty sensor could register a maximum temperature of 127°C (260°F). This situation can also arise if the button on the handle is held down for an extended period and should return to normal after the button is released.
The Wall Connector has a contactless temperature sensor measuring the input terminal temperature, to make sure your input terminals/wiring do not overheat.
It will typically read from around -1 to -3000 and your Wall Connector will use this value along with PCBA Temperature as part of a temperature calculation to lower the output power or turn off the power if the terminals become too hot.
If this happens your Wall Connector will show the error ‘Input Wiring Foldback’ in Wall Monitor.
"Proximity Pilot" aka "plug present", which provides a signal to the vehicle's control system so it can prevent movement while connected to the Wall Connector, and signals the latch release button to the vehicle.
Pilot High and Low are used as part of the vehicle communication called "Control Pilot".
"Control Pilot" is a communication line used to signal charging level between the car and the Wall Connector, and can be manipulated by the vehicle to initiate charging as well as other information.