Table of Contents
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Grid connection of the charging station, which contains terminals for all supply wires (L1, L2, L3, N and PE).
Energy meters for each socket. For normal functioning of the station, a working communication connection between the main station controller and the energy meters is required.
Differential and overcurrent protection of each socket.
Module for communication with electric vehicle (compliant with the IEC 61851 standard), socket voltage monitoring components, socket contactors.
Main station controller with RFID reader, RFID antenna and LCD display, control circuit power supply, and communication modules (Ethernet or GPRS router).
Figure 3: Arrangement of equipment inside the station
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Base Specifications
Input: 2x230/400V~; 3W+N+PE; 50/60 Hz; 32 A max.
Output: 2x230/400V~; 3W+N+PE; 50/60 Hz; 32 A max.
Maximum charging power: 2 x 22 kW (3-phase)
Device power consumption:
From 5 W, depending on the actual configuration.
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Specification of frequency bands and transmitting power (it is possible that not all modules are part of an actual device).
LTE module Frequency bands: LTE-FDD: B1 (2100 MHz), B3 (1800 MHz), B5 (850 MHz), B7 (2600 MHz), B8 (900 MHz), B20 (800 MHz) LTE-TDD: B38 (2600 MHz), B40 (2300 MHz), B41 (2500 MHz) WCDMA: B1 (2100 MHz), B5 (850 MHz), B8 (900 MHz) GSM/EDGE: B3 (1800 MHz), B8 (900 MHz) Transmitting power: 33dBm±2dB for GSM 24dBm+1/-3dB for WCDMA 23dBm±2dB for LTE-FDD 23dBm±2dB for LTE-TDD | LTE Router Frequency bands: 4G (LTE-FDD): B1 (2100 MHz), B3 (1800 MHz), B5 (850 MHz), B7 (2600 MHz), B8 (900 MHz), B20 (800 MHz) 4G (LTE-TDD): B38 (2600 MHz), B40 (2300 MHz), B41 (2500 MHz) 3G: B1 (2100 MHz), B5 (850 MHz), B8 (900 MHz) 2G: B3 (1800 MHz), B8 (900 MHz) Transmitting power: 21.9 dB |
RFID module Frequency band: 13.56 MHz (HF) Transmitting power: up to 8 dBm | |
Circuit Diagram
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External Signal
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Charger supports connecting four digital inputs and one digital output. Inputs and output are operating on 12 VDC, and maximal allowed load is 100 mA. Check pinout on the image below.
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Figure 4: Pins of connector for digital inputs and output
The use and logic of these digital input and outputs is settable via web interface of the charging station.
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