N68000 series User Manual high power programmable dc electronic load
N68000 series User Manual high power programmable dc electronic load
The N68000 series DC electronic load is developed by Hunan Next Generation Instrumental T&C Tech. Co., Ltd. (NGI), providing detailed guidance on installation, operation, and specifications. NGI collaborates with universities and industry leaders to produce high-quality intelligent equipment and test instruments.
Users must follow safety instructions to ensure proper operation and avoid hazards. Key points include confirming AC input voltage, ensuring reliable grounding, and avoiding operation under hazardous conditions. Safety symbols indicate various warnings and operational states.
The N68000 series is designed for high accuracy and reliability in testing power supplies, car chargers, batteries, and supercapacitors. It supports multiple operation modes (CC, CV, CR, CP) and tests (SEQ, dynamic, charge, discharge, OCP). The power range is from 2.4kW to 14.4kW, with voltage options of 150V, 600V, and 1000V.
Key features include high power density, transient over-power loading capability, built-in ESR test function, programmable sequence test function, and multiple protection mechanisms (OCP, OVP, OTP, OPP, reverse polarity warning). It also offers various communication interfaces such as LAN, RS232, and CAN.
Instructions cover AC input, power-on self-test, and various connection types (input, control, sense, low voltage test, and parallel connection of multiple devices).
The manual details control modes, including constant current, voltage, resistance, and power modes, as well as dynamic modes like continuous, pulse, and toggle. Additional functions include auto test, discharge and charge tests, ESR measurement, and over current protection test.
Describes the use of buttons, LCD screen, and menu settings for system, application, and protection settings.
Guidelines for static and dynamic operations, auto test, capacity test, ESR test, OCP test, and MPPT test are provided.
Regular maintenance and fault self-inspection procedures are outlined to ensure the longevity and proper functioning of the device.
Technical specifications are provided for different models within the N68000 series.
The document provides detailed specifications for the NGI N68000 Series High Power DC Electronic Load, including models with varying power, voltage, and current ratings, such as 2.4kW/600V/20A and 14.4kW/1000V/360A.
Upon receiving the N68000, users should inspect the instrument for damage and verify the inclusion of accessories such as a power cord, RS232 cable, Ethernet cable, and USB flash drive containing the user manual and software.
The N68000 requires proper installation to ensure efficient heat dissipation. A minimum gap of 20cm should be maintained for air circulation. The power cord must be compatible with local voltage and plug types.
Before powering on, ensure the AC input voltage is correct and the power cord is connected. The device performs a self-test upon startup, displaying a CC interface if successful.
Input connections should consider wire diameter and length to minimize voltage drop. Control connections include remote sense and external programming inputs.
The series offers auto test functions for simulating waveforms and improving test efficiency. Discharge and charge tests are available for batteries and supercapacitors, with options for ESR measurement and overcurrent protection testing.
Users are warned to ensure proper grounding and to use load wires capable of handling maximum current without overheating. Short-circuit simulations are possible under various modes to test device protection performance.
The N68000 series allows short-circuit operations in different modes (CC, CP, CV, CR). Exiting short-circuit mode returns the device to its previous state.
The Von latch function can be enabled or disabled. When enabled, the device sinks current when the input voltage is above Von and stops when below Voff.
Users can set a specific load time, after which the device stops loading. This is useful for precise control over loading durations.
The N68000 offers protection settings for current limit, over voltage (OVP), over current (OCP), and over power (OPP).
The device includes multiple protection features such as OCP, OVP, OPP, reverse polarity warning (RV), over temperature protection (OTP), and more.
The slew rate defines the change of voltage or current per unit time. Setting it to maximum minimizes transition time between values.
Users can save up to 20 parameter groups in EEPROM for easy recall. Fast Recall allows quick access to the first 10 groups.
This function saves data during power-off or failure, ensuring continuity upon restart.
The device supports Chinese and English languages.
Features include remote sensing for accurate measurements, current monitoring output, and external programming input for CC mode control.
Steps are provided for resetting the device to factory settings, with notes on external programming and protection measures.
The document details button operations and LCD screen displays, including function, numeric, and knob controls.
Users can configure system settings like IP address, baud rate, and language, as well as application settings for sense mode, external control, and more.
Users can set limits for current, voltage, and power to protect the device and DUT.
Voff is a programmable voltage limit for the N68000 series. If the input voltage falls below Voff, the device will stop loading immediately.
This parameter sets the load time, with a programmable range of 0-60,000 seconds.
To perform a factory reset, press Menu, select Factory Reset, and press Enter.
The N68000 series supports static and dynamic operation modes, including Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP).
- Constant Current (CC): Enter CC mode by pressing CC on the panel or through the menu. Set current and slew rates using numeric inputs.
- Constant Voltage (CV): Enter CV mode similarly to CC. Set voltage and slew rates.
- Constant Resistance (CR): Enter CR mode by pressing CR or through the menu. Set resistance and slew rates.
- Constant Power (CP): Enter CP mode by pressing CP or through the menu. Set power and slew rates.
Dynamic testing includes CCD, CVD, and CRD modes, with continuous, pulse, and toggle operation modes.
Auto Test allows editing sequences to simulate load changes. Set parameters like File No., Total Steps, and Cycle.
For battery testing, connect the battery, set CV mode, and choose Discharge or Charge. Set parameters like discharge/charge current and end voltage.
Catalog excerpts
Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N68000 Series High Power DC Electronic Load User Manual © Copyright Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Version: V20211228 N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 1 Preface Dear Customers, First of all, we greatly appreciate your choice of N68000 series DC electronic load (N68000 for short). We are also honored to introduce our company, Hunan Next Generation Instrumental T&C Tech. Co., Ltd.( NGI for short). About Company NGI is a professional manufacturer of intelligent equipment and test & control instruments, committed to developing, manufacturing battery simulators, power supplies, electronic loads, and many more instruments. The products can be widely used in the industries of battery, power supply,...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 2 Safety Instructions In the operation and maintenance of the instrument, please strictly comply with the following safety instructions. Any performance regardless of attentions or specific warnings in other chapters of the manual may impair the protective functions provided by the instrument. NGI shall not be liable for the results caused by the neglect of those instructions. 2.1 Safety Notes > Confirm the AC input voltage before supplying power. > Reliable grounding: Before operation, the instrument must be reliably grounded to avoid the...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3 Product 3.1.1 Brief Introduction N68000 series is developed based on NGI's years of experience in testing for power supply, car charger, battery and supercapacitor. It is with high accuracy, high reliability and high cost performance^ has CC, CV, CP and CR mode. N68000 series supports SEQ test, dynamic test, charge test, discharge test, OCP test, etc. The power range covers from 2.4kW to 14.4kW. 3.1.2 Features ■ Power range: 2.4kW to 14.4kW ■ Voltage range: 150V/600V/1000V ■ Operation modes: CC/CV/CR/CP ■ High power density, minimizing...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 4 NGI l NGI N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. For other specifications, please contact NGI. 3.2.2 Package Contents and Accessories After receiving N68000, please check the instrument according to the following steps: 1. Check whether the instrument is damaged during transportation. If any severe damage to the package, please contact NGI or our authorized distributor. 2. Check accessories. 3. Make sure the the following accessories are attached. Table 3 N68000 Accessories Power cord and fuse RS232 cable Ethernet cable USB flash drive Instructions For AC power connection For RS232 communication...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Rear Panel Dimension(mm) Side Dimension(mm) 3.3 Front Panel Introduction Programmable DC Electronic Load ENTRY Auto Front Panel Name Power switch Screen Function buttons Numeric buttons Knob N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3.5 Installation Instruction N68000 dissipates heat through the built-in fans. When installing, please make sure there is a gap of at least 20cm between N68000 and other objects for air circulation. The power cord is a 3-core wire with grounding protection. Please use a suitable socket for operation. The power cord also matches your local voltage and plug type. If it is not matched, please contact NGI. 7 NGI l NGI N68000 Series High Power DC Electronic Load
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3.5.2 Power-on Self Test Before power-on, please make sure the following. 1) The nominal voltage of the AC input socket should be in the correct range. 2) The power cord is plugged into AC input socket. Warning: The three-core power cord provides chassis grounding. Before operating on N68000, please make sure N68000 is well grounded. After switched on, N68000 will start power-on self test. If no error is found, the LCD screen will display the below CC interface. In case of test failure, please record the error information and contact NGI...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. ZlA Warning: To meet safety requirements, the load wires should be capable of bearing the maximum current which the load can bear, without overheat. Input connection refers to connecting the DUT to +&- terminals on N68000's rear panel. The major concerns for input connection are the wire diameter, length and polarity. The wire diameter should be big enough to ensure measurement accuracy. Meanwhile exceeding heating may cause safety accidents. It is recommended to use standard copper wire with bigger diameter and less length to ensure the...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Note: The input voltage range for external programming is 0 ~ 10V. Input voltage below 0V or above 10V may cause abnormal operation or even damage. 3.6.3 Sense Connection N68000 provides two types of sense: local sense and remote sense. User can select sense mode on the screen. ♦ Local sense It is used when the load current is not very high. ♦ Remote sense Remote sense is also four-wire sense. When N68000 is working, it will cause a voltage drop in the leads between the DUT and terminals of N68000, which will affect the voltage measurement...
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Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Remote Sense Connection 3.6.4 Low Voltage Test Connection Please refer to the technical data sheet for the minimum operating voltage of each model. If lower voltage at full current needs to be tested, users can connect a DC power supply in series mode to compensate the minimum operating voltage. The DC power supply will provide a fixed voltage to ensure a high test voltage at N68000 input terminal. Low Voltage Test Connection N68000 Series High Power DC Electronic Load
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