DC EV Charger Explained | Bluesky

1. What is a DC EV charger?

DC EV charger is used to charge electric vehicles.

DC EV charging equipment can be installed on the ground or the wall, installed in various public spaces, residential quarters, and charging stations, and then charged by various types of electric vehicles according to different voltage levels.

People can use RFID cards or activate them by mobile phone. Start on the 7-inch HIM  touch screen provided by the charging equipment, The display screen of the EV charger can display data such as charging amount, cost, and charging time.

2. What are mainly parts of appearance?

DC EV Charger Component Interpretation

  • Lock
  • High-temperature hazard warning sign
  • RFID card reading area
  • Connector holster
  • CCS connector
  • Power indicator/error light/one-connector light/two-connector light
  • Human-computer interaction interface (7-inch touch screen)
  • Emergency stop button (can realize emergency cut-off of input power in the state of charging failure)
  • Chademo connector
  • door lock

3. What are mainly parts inside the EV charger?

Internal structure of DC EV Charger

  • Main control board
  • Output driver board
  • Insulation sample
  • Insulation test board
  • Dc electricity meter
  • Bus contactor (can control the output confluence of two charging modules when charging a single gun)
  • Fuse (current protection)
  • High-pressure contactor
  • Door switch
  • Signal Input Feedback Board
  • PLC(only CCS)
  • Ocpp board(connect to platform)
  • Shunt

DC EV Charger battery and exhaust

  • Heat elimination fan
  • Electrical module AC-DC
  • Product nameplate (mainly recording the name of the manufacturer, the rated technical data of the product, etc.)

DC EV Charger wiring location

  • Terminals
  • Relay
  • The three-phase AC lightning protection unit has input overvoltage and surge electrical protection
  • Control circuit switch (can be used when restarting after the update program is completed)
  • Three-phase AC leakage protection circuit breaker
  • Three-phase input
  • Cable entry

4. Constant power module

voltage classes V input voltage The output voltage Output current A power
750V 260-530V 150-750V 0-67A 20KW
1000V 150-1000V 0-100A 30KW

5. Charging Connector

Joint charging standard (European standard and Japanese standard) IEC 62196

DC Charging gun


CCS Combo2 DC Connector

DC communication DIN70121, ISO15118

Voltage (V) Current (A)
1000V 150
1000V 200


Chademo DC Charger

Chademo DC Charger

DC communication guidance regulations CHAdeMO: Version: 2.0

Voltage (V) Current (A)
600V 150
600V 200

6. EV charger standby page

DC EV charger touch screen

  • Ocpp status
  • Admin button
  • Connector temperature
  • Price unit
  • Connector 1 error record
  • Charging pile program version number

CPU1 version number/CPU2 version number/insulation program version/screen program version

  • Date
  • Language
  • Charger status

7. EV Charger menu page

EV Charger menu

  • Time setting button
  • Charging unit price setting button
  • Menu password setting button
  • Charging password setting button
  • Ocpp parameter setting button
  • Background switch button
  • Back button

8. EV Charger ocpp setting page

EV Charger ocpp setting

  • ID created on the platform
  • Enter the domain name or IP of the server
  • Turn on DHCP, and these data charging piles such as local IP and gateway can be automatically obtained
  • Server port number

9. EV Charger charging start mode

EV Charger charging start mode


  • Automatic charging

Fully controlled by BMS or manual operation until full or manual stop

  • Schedule an amount to reach the scheduled value to stop
  • Make an appointment to stop when the power reaches the preset value
  • Reserve a time (number of minutes) to stop when the preset value is reached

10. EV Charger charging page

EV Charger charging page

  • EV battery demand voltage/demand current
  • Current charge quantity
  • Cumulative time per charge
  • Prediction of remaining charging time
  • Output voltage/output current/current power
  • Percentage of car battery capacity
  • Stop charging button
  • Return to the main screen button

11. EV Charger internal setting page

Enter 31415926 on the administrator page to access the page for setting internal parameters

Offline card number

  • Offline card number(M1 card)
  • When charging: Output minimum voltage/maximum voltage/maximum current

12. EV Charging Program Downloader Upgrade Steps

Select the program in the downloader and click the yellow button to download it

EV charger program downloader

OCPP program write port

13. 485 serial port upgrade steps

After connecting to the 485 serial port tool, use Firmware V1.1 software, select the corresponding program, and click to start downloading

485 serial port upgrade

Above is a detailed introduction of BLUESKY evse, if you still have questions about our DC fast charging station, you could also contact us.

bluesky EV charger

How does OCPP protocol work? – Bluesky EV charger


How does DC EV charger update OCPP software?

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