1 Summary
1.1 Model Description
DCP: Represents a DC fast charger; this series of chargers are integrated dual-gun DC chargers.
D040: Denotes the rated output power of the charger.
1.2 Product Overview
The DCP-D040Z series electric vehicle DC charger provides national standard compliant charging interfaces and secure, reliable charging services. It offers an excellent user experience, supports precise metering and billing, charging record storage, payment processing functions, and has a certain level of configurability for ease of debugging. The product mainly consists of six functional units: AC distribution unit, power conversion unit, DC output unit, charging interface, charging control unit, and user terminal.
Operating Environment
1) Ambient Temperature: Normal operating temperature range -25℃ to +55℃, storage temperature -30℃ to +70℃;
2) Altitude ≤2000 m;
3) Relative Humidity: 5% to 95%, without condensation;
4) Installation Position: Vertical installation with a maximum tilt angle not exceeding 5°;
5) The use location should have facilities to protect against wind, sand, rain, and snow; no corrosive gases; and must be in an environment without explosive gases;
6) There should be no strong vibrations or shocks at the use location.
1.3 Performance Parameters
Table 1-1 Performance parameters of the DCP-D040Z electric vehicle DC fast charger.

Project		Technical indicators
Product model specifications		DCP-D040Z
Input characteristics	Input Voltage	AC380V(1±15%) Three-phase five-wire
	AC frequency	50±1Hz
	Power Factor	≥ 0.98
	Current harmonic distortion	THDi ≤ 5%
	Full load efficiency	≥ 96％
Output characterlstics	Rated output power	40kW
	Output voltage range	DC200-1000V
	Output current range	Single circuit: O-125A
	Current limiting adjustment range	20%~100% Rating
	Voltage stabilization accuracy	≤ ±0.5%
	Steady flow accuracy	≤ ±1%(Current range 20%-100% load)
	Ripple factor	Effective value coefficient:≤ 0.5%
Protection features	Input over-voltage protection	When the input voltage is higher than the over-voltage protection setting value, the charger can automatically protect
	Input under-voltage protection	When the input voltage is lower than the under-voltage protection setting value, the charger can automatically protect
	Output over-voltage protection	When the output voltage exceeds the over-voltage setting value, the charger can automatically protect
	Output short circuit protection	When the output is short-circuited, the charger can automatically protect itself and automatically recover when the fault point is removed.
	Over temperature protection	When the internal temperature of the charger exceeds theover-temperature setting value, the charger can automatically protect
	Communication protection	Shutdown of electric vehicle communication failure
Human Machine Interface	Status indicator	Displays standby, charging and fault status
	Human machine operation unit	Equipped with 4.3-inch LCD touch screen: display charging information, battery information, human-machine operation interface
Others	Vehicle Auxiliary Power Supply Specifications	DC 12V/10A
	Operating ambient temperature	-25℃ - +55℃
	Cooling method	Forced air cooling
	Acoustic noise	≤80dB
	Protection level	IP54
	Size (mm)	40KW:690(Height)*492(Width)*183.5 (Depth)(Wall-mounted) 1568(Height)*492(Width)*263.5 (Depth)(Column-mounted)

2 Functional Features
2.1 Basic Functions
1) The charger can charge one or more types of batteries including lithium-ion batteries, nickel-metal hydride batteries, and lead-acid batteries, suitable for common electric vehicle models;
2) The human-machine interface adopts a full touchscreen operation method, offering convenient and quick operations. The charger also features operational status indication through lights on the top of the charger for easy observation of its running status;
3) It includes functions such as card swipe encryption, metering and billing, communication with backend systems, and communication with electric vehicles.
2.2 Safety Protection Functions
1) The charging equipment is equipped with protection features against input overvoltage, input undervoltage, output overvoltage, output short circuit, and overheating of the charger. In case of a fault, the charger can automatically cut off the output and provide an alarm notification to ensure comprehensive safety during charging;
2) It has functions like isolation of the output circuit from the grid, insulation detection, residual voltage discharge, connection confirmation, polarity detection, and communication interruption protection to ensure the safety of equipment and personnel during charging;
3) An emergency stop switch is available on the charger to quickly cut off power in case of an emergency, stopping the charging process;
4) The charger communicates with the vehicle's BMS system, monitoring the charging status of the traction battery in real-time. Upon detecting faults such as overcharging, excessively high temperatures, or reverse polarity, it can immediately stop charging to ensure the safety of vehicle equipment and batteries;
5) Clear status indicators and text prompts are provided to prevent operator errors;
6) Charging only starts after confirming correct connection between the charger and the vehicle's traction battery system. If abnormal connections are detected, the charger stops charging, disconnects the DC output circuit, and unlocks the electronic lock to ensure the vehicle does not start before being disconnected properly.
2.3 Metering and Consumption Functions
1) Equipped with a DC energy meter, the charger has the function of metering the charged energy;
2) By entering time-of-use electricity information, internal conversion for billing purposes is achieved, completing the collection and settlement of charging fees;
3) Supports consumption settlement via charging cards, QR code scanning, etc., but card swiping is generally reserved for maintenance personnel for facility maintenance and temporary activation rather than customer use.
2.4 Communication Functions
1) The charger can communicate with the electric vehicle's battery management system (BMS) to determine if it is correctly connected to the vehicle's battery system and obtain charging parameters and real-time data;
2) It also communicates with upper-level monitoring systems, uploading information such as energy consumption, fees, and IC card details to remote monitoring while receiving controls from remote monitoring.
2.5 Historical Record Functions
The charger has the ability to record site data in case of power failure, preventing loss of charging data. Mainly records include:
1) Names and start times of the most recent alarm events;
2) Names and start times of the most recent setting modification events and charging events.