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Summary of Contents for NGI N68000 Series
- Page 1 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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Page 2: Table Of Contents
2.1 Safety Notes......................2 2.2 Safety Symbols....................2 3 PRODUCT........................3 3.1.1 Brief Introduction.................. 3 3.1.2 Features....................3 3.2 Overview......................4 3.2.1 N68000 Series Lineup................4 3.2.2 Package Contents and Accessories............5 3.2.3 Appearance & Dimension..............5 3.3 Front Panel Introduction.................. 6 3.4 Rear Panel Introduction..................7 3.5 Installation Instruction..................7 3.5.1 AC Input.................... - Page 3 6.1 Static Operation....................38 6.1.1 Constant Current (CC)................38 6.1.2 Constant Voltage (CV)................40 6.1.3 Constant Resistance (CR)..............41 6.1.4 Constant Power (CP)................43 6.2 Dynamic Operation..................45 6.2.1 CCD Mode Selection................45 6.2.2 Range Selection................... 46 6.2.3 Operation Mode Selection..............46 N68000 Series High Power DC Electronic Load...
- Page 4 6.4.1 Discharge..................... 52 6.4.2 Charge....................54 6.5 ESR Test (Optional)..................56 6.6 OCP Test......................58 6.7 MPPT Test....................... 60 7 MAINTENANCE AND SELF-INSPECTION..............62 7.1 Regular Maintenance..................62 7.2 Fault Self-inspection..................62 8 MAIN TECHNICAL DATA.................... 63 N68000 Series High Power DC Electronic Load...
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Page 5: Preface
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). -
Page 6: Safety Instructions
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. -
Page 7: Product
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.It has CC, CV, CP and CR mode. -
Page 8: Overview
Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3.2 Overview 3.2.1 N68000 Series Lineup Table 2 Model Specification Model Specification N68024-150-200 2.4kW/150V/200A N68036-150-300 3.6kW/150V/300A N68024-150-060 2.4kW/150V/60A N68036-150-090 3.6kW/150V/90A N68024-600-020 2.4kW/600V/20A N68036-600-030 3.6kW/600V/30A N68024-600-060 2.4kW/600V/60A N68036-600-090 3.6kW/600V/90A N68024-1000-020 2.4kW/1000V/20A N68036-1000-030 3.6kW/1000V/30A N68024-1000-060 2.4kW/1000V/60A... -
Page 9: Package Contents And Accessories
USB flash drive User manual, software & technical information If any loss or damage, please contact NGI or our authorized distributor. 4. Check the whole instrument. If N68000 chassis is damaged or has abnormal operation, please contact NGI or our authorized distributor. -
Page 10: Front Panel Introduction
ENTRY Auto Discharge Charge PROT-CLR TRAN Save Recall Menu Trigger Ente r Shor t Range On Off Figure 4 Front Panel Table 4 Number Name Power switch Screen Function buttons Numeric buttons Knob N68000 Series High Power DC Electronic Load... -
Page 11: Rear Panel Introduction
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. N68000 Series High Power DC Electronic Load... -
Page 12: Power-On Self Test
After switched on, N68000 will start power-on self test. If no error is found, the LCD screen will display the below CC interface. Figure 6 CC Interface In case of test failure, please record the error information and contact NGI for support. If N68000 cannot be started properly, please refer to the following steps. -
Page 13: Connection
DUT and N68000 should be less than 5.0μH. 3.6.2 Control Connection At the rear panel, there are terminals for remote sense, external programming input ,etc. Figure 6 Control Signal Terminal Table 6 Terminal Definition Terminal Definition Remote sense + N68000 Series High Power DC Electronic Load... -
Page 14: Sense Connection
When working under CV, CR and CP mode, to ensure accurate measurement, it is recommended to use remote sense. During remote sensing, terminals S+ and S- are directly connected to the output of the DUT. N68000 Series High Power DC Electronic Load... -
Page 15: Low Voltage Test Connection
The DC power supply will provide a fixed voltage to ensure a high test voltage at N68000 input terminal. Figure 8 Low Voltage Test Connection N68000 Series High Power DC Electronic Load... -
Page 16: Multiple Devices Parallel Connection
Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 3.6.5 Multiple Devices Parallel Connection Figure 9 Multiple Devices Parallel Connection N68000 Series High Power DC Electronic Load... -
Page 17: Functions And Features
Hunan Next Generation Instrumental T&C Tech. Co., Ltd. 4 Functions and Features This chapter mainly describes the functions and features of N68000 series. 4.1 Control Mode N68000 provides two control modes: local control and remote control. Under local control mode, users can set and operate through N68000 buttons on front panel, and check N68000 status,parameters and readback data via the LCD screen. -
Page 18: Constant Resistance Mode (Cr Mode)
For setting the resistance, when the input voltage is within the high range of rated input voltage of N68000, it is necessary to ensure that the current calculated under the Ohm's law formula is within the low range of rated input current of N68000. N68000 Series High Power DC Electronic Load... -
Page 19: Constant Power Mode (Cp Mode)
N68000 provides three modes for dynamic: continuous(CONT), pulse(PULSE) and toggle(TOGGLE). Among them, pulse mode and toggle mode require trigger signal. Trigger Trigger signal operation can be achieved by pressing , using together with trigger terminals at the rear panel. N68000 Series High Power DC Electronic Load... -
Page 20: Continuous (Cont)
N68000 will immediately switch from main value to transient value, and then returns to main value after maintaining the pulse width time. The setting range of pulse width is: 0.025 ~ 60000ms. Figure 15 Pulse Mode N68000 Series High Power DC Electronic Load... -
Page 21: Toggle (Toggle)
(checking if the sampling voltage/current/power is within the range). Then N68000 will switch to next step. After all test steps are completed, N68000 automatically shuts the input, stops the test, and presents the test results. N68000 Series High Power DC Electronic Load... -
Page 22: Discharge Test
(to charge as fully as possible). The charge test function requires to connect a DC power supply and battery or supercapacitor in series, and to use remote sense. N68000 Series High Power DC Electronic Load... -
Page 23: Esr Measurement (Optional)
ESR is a principal electrical parameter of battery or supercapacitor. With ESR measurement, N68000 absorbs current from the DUT under CC mode. When the current changes, the NGI internal resistance sensing circuit can accurately capture the voltage drop of DUT, and then calculate ESR value according to Ohm's law. -
Page 24: Short-Circuit
Enabled: When the input voltage is higher than Von, N68000 starts to sink current. When the input voltage is lower than Voff, N68000 stops sinking current. After that, it will not sink current automatically even the input voltage is higher than Von again. N68000 Series High Power DC Electronic Load... -
Page 25: Load Time
N68000 provides load time setting. When the loading time reaches the set value, N68000 will stop loading, which can realize accurate control of the loading time. For example, if the loading time is set to 20s, N68000 will stop loading after 20s. N68000 Series High Power DC Electronic Load... -
Page 26: Programmable Protection
When the input power exceeds OPP, N68000 will shut the input. Alarm OPP will be displayed on the screen. 4.13 Protection Function N68000 provides multiple protection: OCP, OVP, OPP, RV, OTP. Over Current Protection (OCP) N68000 Series High Power DC Electronic Load... - Page 27 Warning: Do not connect the output terminal of the AC power supply to the input terminal of N68000. Meanwhile, please make sure the input voltage is within the rated input voltage of N68000. N68000 Series High Power DC Electronic Load...
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Page 28: Slew Rate And Minimum Transition Time
If Fast Recall function is turned on, users can directly press the numeric button to recall the first 10 groups of saved data. Number zero corresponds to the 10th group data. N68000 Series High Power DC Electronic Load... -
Page 29: Power-Off Memory
N68000 or in power failure. This function can be enabled by selecting ON for Poweroff Memory in Application. 4.17 Language N68000 provides two options for language: Chinese and English. Steps to select language: Menu 1. Press to enter menu interface. N68000 Series High Power DC Electronic Load... -
Page 30: Control And Monitor
(DC or AC) at the terminal EXT_IN +. The external programming input voltage range is 0 ~ 10V, which corresponds to zero to full scale of CC mode. EXT_IN- is the ground terminal. N68000 Series High Power DC Electronic Load... -
Page 31: External Trigger Input
Factory Reset. 3. Press to do factory reset. Ente r Note: 1. The data saved in EEPROM will not be cleared after factory reset. 2. The load should be restarted after factory reset. N68000 Series High Power DC Electronic Load... -
Page 32: Local Operation
To enter constant resistance mode ( CR mode) To enter constant power mode ( CP mode) To enter the main Menu Menu To enter short-circuit function Shor t Range switch Range Back to previous page Compound button N68000 Series High Power DC Electronic Load... -
Page 33: Compound Button
To delete 1.To shift select required item menu 2. To control the cursor scrolling when setting parameter To enter the desired item, confirm the input, exit from setting or remote operation Ente r N68000 Series High Power DC Electronic Load... -
Page 34: Knob
By pressing: to enter the edit interface, confirm the input 5.2 LCD Screen 5.2.1 Monitor Interface Figure 24 Monitor Interface ① Load specification ② Readback area ③ Status information ④ Setting area ⑤ Operation mode 5.2.2 Status Information N68000 Series High Power DC Electronic Load... -
Page 35: Menu
Steps to enter menu: Menu 1. Press on the front panel. 2. Press or rotate to select the required function. 3. Press to enter the required parameter. Ente r 4. Press to return to previous page. N68000 Series High Power DC Electronic Load... - Page 36 Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Menu Note: There are three pages for the menu. Users can press to switch to next page. Figure 26 Menu N68000 Series High Power DC Electronic Load...
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Page 37: Setting
To set baud rate for CAN communication Beeper To set the button sound Page Lock To lock the present operation mode Language To select the display language Fast Recall To turn on/off fast recall N68000 Series High Power DC Electronic Load... -
Page 38: Application Setting
The rate is related to the response speed CV Rate of external power supply. If the response speed of external power supply is high, CV rate should be set to High. N68000 Series High Power DC Electronic Load... -
Page 39: Protection Setting
The options are fast and precision. 5.4.3 Protection Setting Steps to enter Protection: Menu 1. Press on the front panel. 2. Choose Protection by pressing or rotating 3. Press on Protection. E nter Figure 29 Protection Setting N68000 Series High Power DC Electronic Load... -
Page 40: Factory Reset
5.4.4 Factory Reset Steps to do factory reset: Menu 1. Press to enter menu interface. 2. Press or rotate to select Factory Reset. 3. Press to do factory reset. Ente r 4. Press to cancel. N68000 Series High Power DC Electronic Load... - Page 41 Hunan Next Generation Instrumental T&C Tech. Co., Ltd. Figure 30 Factory Reset N68000 Series High Power DC Electronic Load...
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Page 42: Operation Guideline
Method 2: Press → Choose CC by pressing or rotating → Press E nter Figure 31 CC Interface Table 16 Parameter Description Range To select the operation range I-Set To set the current N68000 Series High Power DC Electronic Load... - Page 43 E nter cursor and rotate to adjust the numeric→Press to complete setting. E nter Menu Note: To exit from CC, please press or the function button required. N68000 Series High Power DC Electronic Load...
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Page 44: Constant Voltage (Cv)
6.1.2.2 Range Selection There are two options for range: CVH and CVL. It is recommended to select CVL for 0 to 10% of maximum voltage, and select CVH for over 10% of maximum voltage. This N68000 Series High Power DC Electronic Load... -
Page 45: Constant Resistance (Cr)
E nter Menu Note: To exit from CV, please press or the function button required. 6.1.3 Constant Resistance (CR) 6.1.3.1 CR Mode Selection Methods to enter CR: N68000 Series High Power DC Electronic Load... - Page 46 N68000, it is necessary to ensure that the current calculated under the Ohm's law formula is within the low range of rated input current of N68000. Methods to select range: N68000 Series High Power DC Electronic Load...
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Page 47: Constant Power (Cp)
6.1.4 Constant Power (CP) 6.1.4.1 CP Mode Selection Methods to enter CP: Method 1: Press on the front panel directly. Menu Method 2: Press → Choose CP by pressing or rotating → N68000 Series High Power DC Electronic Load... - Page 48 E nter Method Press rotate select required parameter→Press on the required parameter→Press to move the E nter cursor and rotate to adjust the numeric→Press to complete setting. E nter N68000 Series High Power DC Electronic Load...
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Page 49: Dynamic Operation
Method 1: In CC mode, press on the front panel directly and switch to CCD mode. Menu Method 2: Press → Choose CCD by pressing or rotating → Press E nter Figure 35 CCD Interface N68000 Series High Power DC Electronic Load... -
Page 50: Range Selection
Mode→ Press E nter Mode→Press or rotate to select the required mode→ Press E nter complete selection. 6.2.4 Parameter Setting Methods to set Current 1/Current 2/Pulse Wid. 1/Pulse Wid. 2/Rise Slew/Fall Slew under CCD: N68000 Series High Power DC Electronic Load... -
Page 51: Auto Test
The auto test allows users to edit a complex sequence of changes to simulate various changes at the load input. 6.3.1 SEQ Edit Steps to enter SEQ Edit: Menu Press → Choose SEQ Edit by pressing or rotating → Press E nter N68000 Series High Power DC Electronic Load... - Page 52 Options: OFF, Voltage, Current and Power. If time accuracy of the waveform is more focused, users can set it to OFF. If Inspection Voltage/Current/Power is selected, upper limit and lower limit should be set correspondingly. N68000 Series High Power DC Electronic Load...
- Page 53 Press to complete selection. E nter Save Note 1: To save the SEQ file, please press Menu Note 2: To exit from SEQ Edit, please press or the function button required. N68000 Series High Power DC Electronic Load...
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Page 54: Starting Auto Test
Methods to set File No. under Auto Test: Method 1: Press or rotate to select File No.→Press on File E nter No.→Press numeric buttons to input the value→Press to complete E nter setting. N68000 Series High Power DC Electronic Load... -
Page 55: Capacity Test
6.4 Capacity Test N68000 provides capacitance test for battery, capacitor or other power supplies. Below is wiring sample of battery capacitance test. Figure 38 Battery Capacitance Test Wiring N68000 Series High Power DC Electronic Load... -
Page 56: Discharge
Method 1: Press first and then on the front panel. Menu Method 2: Press → Choose Discharge by pressing or rotating → Press E nter Figure 39 Discharge Test Table 23 Parameter Function N68000 Series High Power DC Electronic Load... - Page 57 Note 1: When the battery voltage drops to V-End, the test is completed. The battery capacity (Ah) will be displayed on the screen. Menu Note 2: To exit from Discharge, please press or the function button required. N68000 Series High Power DC Electronic Load...
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Page 58: Charge
Methods to enter Charge: Charge Method 1: Press first and then on the front panel. Menu Method 2: Press → Choose Charge by pressing or rotating → Press E nter Figure 40 Charge Test N68000 Series High Power DC Electronic Load... - Page 59 V-Charge, it will charge at a constant voltage. Until the CV time reaches, it stops charging. The battery charge capacity (W) will be displayed on the screen. Menu Note 2: To exit from Charge, please press or the function button required. N68000 Series High Power DC Electronic Load...
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Page 60: Esr Test (Optional)
2. Enter ESR Test interface. Methods to enter ESR Test: Method 1: Press first and then on the front panel. Menu Method 2: Press → Choose ESR Test by pressing or rotating → Press E nter N68000 Series High Power DC Electronic Load... - Page 61 Method 2: Press or rotate to select I-Range→ Press E nter I-Range→Press or rotate to select the required range→ Press to complete selection. E nter 4. Set the discharge current. Methods to set I-Set: N68000 Series High Power DC Electronic Load...
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Page 62: Ocp Test
Note 3: To exit from ESR Test, please press or the function button required. 6.6 OCP Test Steps to operate OCP test: 1. Connect DUT with N68000 properly. 2. Enter OCP Test interface. Methods to enter OCP Test: N68000 Series High Power DC Electronic Load... - Page 63 3. Set parameters. Methods to set I-Start/I-Increment/V-End/Dwell: Method Press rotate select required parameter→Press on the required parameter→Press numeric buttons to E nter input the value→Press to complete setting. E nter Method Press rotate select required N68000 Series High Power DC Electronic Load...
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Page 64: Mppt Test
Steps to operate MPPT test: 1. Enter MPPT Test interface. Steps to enter MPPT: Menu Press → Choose MPPT by pressing or rotating → Press E nter Figure 45 MPPT Test 2. Select the mode. N68000 Series High Power DC Electronic Load... - Page 65 E nter setting. 4. Start MPPT test. Press to start test. On Off Menu Note: To exit from MPPT, please press or the function button required. N68000 Series High Power DC Electronic Load...
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Page 66: Maintenance And Self-Inspection
Due to system upgrade or hardware problem, the device may break down. Please do the following necessary inspection to eliminate the troubles, which can save your maintenance and time cost. If the troubles cannot be recovered, please contact NGI. The inspection steps are as below. -
Page 67: Main Technical Data
Resolution Setting 0.05%+0.05%F.S. Accuracy (23±5 ℃ ) CP Mode Range 0~2400W Setting 0.1W Resolution Setting 0.5%+1%F.S. Accuracy (23±5 ℃ ) CR Mode Range 0.02Ω~75Ω 0.3Ω~750Ω 0.05Ω~2 1Ω~2500 0.56Ω~3000 11.2Ω~30000 50Ω Ω Ω Ω N68000 Series High Power DC Electronic Load... - Page 68 (23±5 ℃ ) Dynamic Mode T1&T2 0.015~60000ms Resolution 1μs/1ms Accuracy ≤20μs+100ppm (23±5 ℃ ) Others Interface LAN/RS232/CAN AC Input Single phase, please refer to the voltage mark at the rear panel. Sampling 25Hz Frequency N68000 Series High Power DC Electronic Load...
- Page 69 Accuracy (23±5 ℃ ) CV Mode Range 0~60V 0~600V 0~100V 0~1000V 0~100V 0~1000V Setting 10mV 10mV 100mV 10mV 100mV Resolution Setting 0.05%+0.05%F.S. Accuracy CP Mode Range 0~2400W Setting 0.1W Resolution Setting 0.5%+1%F.S. Accuracy N68000 Series High Power DC Electronic Load...
- Page 70 Accuracy (23±5 ℃ ) Current Measurement Range 0~6A 0~60A 0~2A 0~20A 0~6A 0~60A Readback 0.05%+0.1%F.S. Accuracy (23±5 ℃ ) Power Measurement Range 0~2400W Readback 0.5%+1%F.S. Accuracy (23±5 ℃ ) Dynamic Mode T1&T2 0.015~60000ms N68000 Series High Power DC Electronic Load...
- Page 71 CC Mode Range 0~30A 0~300A 0~9A 0~90A 0~3A 0~30A Setting 10mA 0.1mA 0.1mA Resolution Setting 0.05%+0.1%F.S. Accuracy (23±5 ℃ ) CV Mode Range 0~15V 0~150V 0~15V 0~150V 0~60V 0~600V Setting 10mV 10mV 10mV N68000 Series High Power DC Electronic Load...
- Page 72 0~150V 0~15V 0~150V 0~60V 0~600V Readback 0.05%+0.05%F.S. Accuracy (23±5 ℃ ) Current Measurement Range 0~30A 0~300A 0~9A 0~90A 0~3A 0~30A Readback 0.05%+0.1%F.S. Accuracy (23±5 ℃ ) Power Measurement Range 0~3600W Readback 0.5%+1%F.S. Accuracy N68000 Series High Power DC Electronic Load...
- Page 73 0~3A 0~30A 0~9A 0~90A Setting 0.1mA 0.1mA 0.1mA Resolution Setting 0.05%+0.1%F.S. Accuracy (23±5 ℃ ) CV Mode Range 0~60V 0~600V 0~100V 0~1000V 0~100V 0~1000V Setting 10mV 10mV 100mV 10mV 100mV Resolution Setting 0.05%+0.05%F.S. N68000 Series High Power DC Electronic Load...
- Page 74 Readback 0.05%+0.05%F.S. Accuracy (23±5 ℃ ) Current Measurement Range 0~9A 0~90A 0~3A 0~30A 0~9A 0~90A Readback 0.05%+0.1%F.S. Accuracy (23±5 ℃ ) Power Measurement Range 0~3600W Readback 0.5%+1%F.S. Accuracy (23±5 ℃ ) Dynamic Mode N68000 Series High Power DC Electronic Load...
- Page 75 Altitude <2000m, relative humidity: 5%~90%RH(non-condensing), atmospheric pressure: Environment 80~110kPa Net Weight Approx. 27.2kg Dimension 3U, 132.5(H)*482.0(W)with handle*612.0(D) mm Note 1: For other specifications, please contact NGI. Note 2: All specifications are subject to change without notice. N68000 Series High Power DC Electronic Load...
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