4.9Connecting digital outputs
You can operate the digital outputs in the operating modes “Low Side”, “High Side”, and “Floating”.
–With “Low Side”, the output is connected to ground potential when activated.
–With “High Side”, the output is connected to a 12 V voltage when activated.
–With “Floating”, there is no through-connection to one of the reference potentials.
NOTE: Observe the maximum current carrying capacity of the digital outputs
The digital outputs are not protected against overload. Make sure that the maximum output current is not exceeded. For the maximum current carrying capacity, refer to “Technical data” on page 141.
NOTE: Observe the maximum voltage of the digital outputs
In “Low Side” operating mode, the supply voltage of the connected loads must not exceed the maximum output voltage of the digital outputs, which is 12 V.
•Make sure that the maximum output voltage of 12 V is not exceeded.
•When power is supplied from external sources, make sure that the ground potential is connected to the ground potential of the charging controller.
Figure 4-14Control of LEDs in “High Side” operating mode
Figure 4-14 shows an example of control in “High Side” operating mode. The EV-T2SOC-P protective cover with the LED area is connected to the outputs.
Figure 4-15Control of LEDs in “Low Side” operating mode
Figure 4-15 shows an example of control in “Low Side” operating mode using a 3-color LED. The outputs are configured in the web-based management (see “Charging Stations/Charge Point/Event Actions” on page 94).
Select from a predefined list to specify under which conditions and systems states or on which events an output should be activated.
–Examples of conditions and system states: Vehicle connected, charging the vehicle, charging station in error state
–Examples of events: RFID invalid, temperature derating activated
In case of activation, the digital outputs can be configured to the following operating modes:
–Permanent 12 V (“High”)
–Permanent 0 V (“Low”)
–Flashing 12 V (“Flashing High”)
–Flashing 0 V (“Flashing Low”)
–Pulsating 0 V (“Pulsatile Low”)
–Floating (“Floating”)
For flashing output signals, it is possible to specify the operating time per pulse (PWM duty cycle).
The activation time of an output can be limited using a timer.
You can link an output to multiple conditions, system states, or events and assign a different operating mode to each of them. This enables different system states to be signaled via one output.