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Maynuo Electronic M88 Series User Manual

Programmable dc power supplier
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USER'S MANUAL
Programmable DC power supplier
Models M88XX Series
(Including M8811/M8812/M8813/M8851/M8852/M8853/
M8871/M8872/M8873/M8874)

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Summary of Contents for Maynuo Electronic M88 Series

  • Page 1 USER’S MANUAL Programmable DC power supplier Models M88XX Series (Including M8811/M8812/M8813/M8851/M8852/M8853/ M8871/M8872/M8873/M8874)

  • Page 3: Table Of Contents

    Nanjing Maynuo Electronics Co., Ltd Content Chapter 1 Introduction ....................... 1 Chapter2 Technical Specifications ..................2 2.1 Main Technical Specification ......................2 2.2 Supplemental Characteristics......................6 2.3 M88XX Power Suppliers Dimension ....................6 Chapter 3 Quick Start ......................9 3.1 Front-panel and Rear-panel ....................... 9 3.2 Preliminary Checkout ........................
  • Page 4 M88XX Series Programmable DC Power Suppliers 6.2.4 Setting Command ........................31 6.2.5 List Operation（LIST）Related Command ................34 Quick Reference ........................ 39...

  • Page 5: Chapter 1 Introduction

    Nanjing Maynuo Electronics Co., Ltd Chapter 1 Introduction M88XX Series power suppliers are high performance single-output programmable DC power suppliers with communication interface, possessing the character of fast rise time speed (The rise speed of M8811 power supplier can be less than 10mS and that of M8851 can be less than 20mS) The combination of bench-top and system features in these power suppliers provides versatile solutions for your design and test requirements.

  • Page 6: Chapter2 Technical Specifications

    M88XX Series Programmable DC Power Suppliers Chapter2 Technical Specifications 2.1 Main Technical Specification M881X Series power suppliers technical specification table Model M8811 M8812 M8813 Voltage 0-30V 0-75V 0-150V Input Rating Current 0-5A 0-2A 0-1A ＜0.01%+0.5mV ＜0.01%+0.5mV ＜0.01%+0.5mV Voltage Load Regulation ＜0.01%+0.1mA ＜0.01%+0.1mA ＜0.01%+0.1mA...
  • Page 7 Nanjing Maynuo Electronics Co., Ltd M885X Series power suppliers technical specification table Model M8851 M8852 M8853 0-6V 0-30V 0-75V Input Rating 0-60A 0-20A 0-8A ＜0.01%+1mV ＜0.01%+1mV ＜0.01%+1mV Load Regulation ＜0.01%+0.1mA ＜0.01%+0.1mA ＜0.01%+0.1mA 0.1mV 0.5mV Setting Value Resolution 0.5mA 0.2mA 0.1mV 0.1mV 0.1mV Readback Value Resolution...
  • Page 8 M88XX Series Programmable DC Power Suppliers M887X Series power suppliers technical specification table Model M8871 Input Rating 0-15V, 0-60A Load Regulation <0.01%+1mV, <0.01%+0.1mA Setting Value Resolution 0.1mV, 1mA Readback Value Resolution 0.1mV, 0.05%+6mA Readback Value Accuracy 0.03%+5mV, 0.05%+45mA Ripple 4mvp-p, 10mA rms 0-12V Accuracy: 0.02%+2mV;...
  • Page 9 Nanjing Maynuo Electronics Co., Ltd Model M8873 Input Rating 0-75V, 0-15A Load Regulation <0.01%+1mV, <0.01%+0.1mA Setting Value Resolution 2mV, 0.2mA Readback Value Resolution 0.1mV, 0.05%+1mA Readback Value Accuracy 0.03%+15mV, 0.05%+15mA Ripple 6mvp-p, 3mA rms 0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy: Voltmeter Accuracy 0.02%+5mV 10W 0-1000 mΩAccuracy:0.2%+3 mΩ;1000-10000mΩ...

  • Page 10: Supplemental Characteristics

    M88XX Series Programmable DC Power Suppliers 2.2 Supplemental Characteristics State Storage Memory: 50 user-configurable stored states Recommended Calibration Interval: Once/ Year AC Input Ratings (selectable via switch on the rear panel) Option 01: 220VAC ± 10%, 47 to 63 Hz Option.02: 110 VAC ±...
  • Page 11 Nanjing Maynuo Electronics Co., Ltd The dimension of M885X Series is 428mmW×103.5mmH×453.5mmL，Please refer to the following figure： Figure 2.2: M885X Power Suppliers Dimension Figur...
  • Page 12 M88XX Series Programmable DC Power Suppliers The dimension of M887X Series is 482mmW×184.5mmH×583.5mmD. Please refer to the following figure： Figure 2.3: M887X Power Suppliers Dimension Figur...

  • Page 13: Chapter 3 Quick Start

    Nanjing Maynuo Electronics Co., Ltd Chapter 3 Quick Start This chapter mainly focuses on the brief introduction of the surface appearance and basic functions of M88XX Series power suppliers so that both experienced and inexperienced users can be acquainted with the new products quickly. Meanwhile, the chapter also clarifies some preliminary checkout that should be made prior to operation to make sure the normal running of the products.

  • Page 14: Preliminary Checkout

    M88XX Series Programmable DC Power Suppliers ① Cooling Window ② Multifunction Interface Connector ③ 9 Pin COM Interface ④ Power Switch Key (110V / 220V) ⑤ Power Socket 3.2 Preliminary Checkout The following steps help you verify that the power supplier is ready for use 1.

  • Page 15: How To Adjust The Carrying Handle

    Nanjing Maynuo Electronics Co., Ltd 2. Verify the power-line voltage setting. The line voltage is set to the proper value for your country (110VAC or 220VAC) when the power supplier is shipped from the factory. Change the voltage setting if it’s not correct. 3.

  • Page 16: How To Rackmount The Instrument

    M88XX Series Programmable DC Power Suppliers 3.5 How to Rackmount the Instrument The power supplier can be mounted in a standard 19-inch rack cabinet and be easily applied to your testing system. If you want to rackmount the M88XX Series, please buy MR01 rack kit. Note ：...

  • Page 17: Chapter 4 Panel Operation

    Nanjing Maynuo Electronics Co., Ltd Chapter 4 Panel Operation This chapter mainly introduces the front-panel operation in detail from the following parts: Voltage Set Operation Current Set Operation Saving and Recalling Operation Menu Operation Output ON/OFF Operation Remote Measurement Function Milliohmmeter Function Voltmeter Function 4.1 Key Layout...

  • Page 18: Front-Panel Operation Overview

    M88XX Series Programmable DC Power Suppliers Local Local operation Esc key (can be exited from any working condition) Function Keys Direction Setting the voltage value V-set Setting the maximum current value I-set Saving the current settings to a particular storage locations Save Recalling the saved settings Recall...

  • Page 19: Constant Current Operation

    Nanjing Maynuo Electronics Co., Ltd suppliers are powered on. Solution Two: Step1. Power on the M88XX series instrument. Step2. Press key. V-Set Step3. Press the numeric keys to enter the voltage value you wanted. Step4. Press Enter to confirm the value Close knob lock function when you in config menu,also can use following two operations: 1) Use upper revolving encoder directly to adjust voltage;...
  • Page 20 M88XX Series Programmable DC Power Suppliers shows the menu items. You can select the menu items by pressing the ▲ and ▼ keys or by rotating the ENTER knob, and then press the key to enter in the menu item you wanted. Or you can press the key to get back to the higher level menu.
  • Page 21 Nanjing Maynuo Electronics Co., Ltd Trigger(Def) Trigger mode Port Mode: RI/DFI Digital I/O Digit port Key Lock Set: Password= Entering password and then pressing the key Enter to unlock the password ： Exit When accessing to System Set item，the following menu items will be displayed on the VFD display screen by pressing the keys ▲...

  • Page 22: Menu Function

    M88XX Series Programmable DC Power Suppliers 4.6.2 Menu Function Initiating the Output State (>Output Setup) This instruction can initiate the output state when the power supplier is powered on. If you select the item On, the power supplier will initiate the output to OFF state when the power supplier is powered on. If you select the item Off, the output will remain the same state as last time you turned off the power supplier Setting the Key Sound (Key Sound Set)
  • Page 23 Nanjing Maynuo Electronics Co., Ltd Setting the Baudrate (>Baudrate Set) This instruction can change the communication baud rate of the power supplier; the baud rate range is 4800bps，9600bps，19200bps，38400bps. Before the communication, you must make sure that there is same baud rate between the power supplier and the host computer. Default baud rate is 9600bps. Setting Address (>Sour.
  • Page 24 M88XX Series Programmable DC Power Suppliers Fault Indication Function (>DFI Status) DFI results from following five sources: Quest, OPER, StEV, Requ., Off. Setting Password for Function Keys (>Key Lock Set) This instruction can set a password (1 through 4 digits) to lock the function keys operation. After On/Off setting the password, all the function keys on the front panel will be locked except the key .
  • Page 25 Nanjing Maynuo Electronics Co., Ltd Enter number you want to edit, press the key to confirm. 7) When VFD display screen show the item List x Steps= xxx，press numberic keys to set the total list Enter steps(x). Press the key to confirm.
  • Page 26 M88XX Series Programmable DC Power Suppliers Picture 4.3 Single-Step Trigger Automatic Test (>Atest Set) You can check if the equipment is qualified by editing the automatic test files, such as the value set, comparison parameters, delay time, inputting the step No.(50 steps at most). 4 data of automatic test files can be edited.

  • Page 27: Output On-Off Operation

    Nanjing Maynuo Electronics Co., Ltd Enter followed by pressing the key to confirm. 24) When the VFD display shows Step 1 Curr= xxxxx A， press the numeric keys to set the current, Enter followed by pressing the key to confirm. 25) When the VFD display shows Step 1 Max= xxxxx X，press the numeric keys to set the maximum Enter value for the qualified test, followed by pressing the key...

  • Page 28: Milliohmmeter Function

    M88XX Series Programmable DC Power Suppliers accuracy, remote measurement terminals is installed at the rear-panel of the power supplier. Users can measure the output terminals voltage of the instrument under test by these terminals. Before performing the remote measurement function, you need to set the power supplier as the remote measurement mode.

  • Page 29: Voltmeter Function

    Nanjing Maynuo Electronics Co., Ltd Picture 4.5 Milliohmmeter Measuring Electrical Resistance 4.10 Voltmeter Function The voltage of the instrument under test can be measured if the wires are connected together just as the picture 4.6. Picture 4.6 Measuring the Voltage of the Instrument under Test...

  • Page 30: Chapter 5 Remote Operation Mode

    M88XX Series Programmable DC Power Suppliers Chapter 5 Remote Operation Mode The DB9 interface connector on the rear panel of the power supplier can be transferred to RS232 interface through the voltage level shift cable（M-131）, the following information will tell you how to use the computer to control the output of the power supplier.
  • Page 31 Nanjing Maynuo Electronics Co., Ltd Before using the remote operation mode, please make sure that the baudrate and communication address in power supplier are the same as that in the computer software; otherwise, the communication will fail. You can change the baud rate and communication address from the front panel or from computer. (1) Baud rate: 9600(4800, 9600, 19200, 38400, which are selectable from the menu on the front-panel.) (2) Data bit: 8...

  • Page 32: Chapter 6 Scpi Communication Protocal

    M88 series programmable DC power supply supports SCPI communication protocol. SCPI communication protocol is a standard commands for programmable instruments, which defines a standard set of communication commands.Command for M88 series power supply can be divided into two categories: basic commands (IEEE-488.2 Common Command Set) and command specified by M8800 software.

  • Page 33: Command Specified By M8800 Software

    Nanjing Maynuo Electronics Co., Ltd 6.2.2 Command specified by M8800 software This command is ordered arrangements of tree constructs. Each command contains a number of strings (mnemonic) . Layers separated by a colon (:). At the top of the command in the command tree known as the "root shell"...
  • Page 34 M88XX Series Programmable DC Power Suppliers Some command needs parameters. Setting command, for example. There is a space (ASCII code is 32) between the command and the first parameter. Example: setup voltage value command [:] VOLT 12.000 There is a space (ASCII code is 32) between 12.00 and VOLT System command Commands described in this section are under the root path [:] SYSTem commands.

  • Page 35: Measurement Command

    Nanjing Maynuo Electronics Co., Ltd Example: Sending command [:] SYST: SENS 1, If sending successfully, the power supply is in the remote mode. 6.2.3 Measurement Command Commands described in this section are under the root path [:] MEASure commands. The following commands are used short-type mnemonic format.
  • Page 36 M88XX Series Programmable DC Power Suppliers Parameters: bool-type parameters, (0-OFF, 1-ON) Example: If sending command [:] OUTP 1, the power supply output is ON if you set successfully. 2.Related command: to query output status of power supply. Return command parameter: <bool>. Command [:] MODE <mode>...
  • Page 37 Nanjing Maynuo Electronics Co., Ltd voltage value and the minimum setup voltage value. [:]VOLT? MAX|MIN Return command parameters: numeric Example： 1) If you want to query the setup voltage value, please send command [:]VOLT?, If the return command is：10.0000，it means the setup voltage of power supply is 10.0000V. 2) If you want to query the maximum setup voltage value, please send command [:]VOLT? MAX, If the return command is76.0000，it means the maximum setup voltage value of power supply is 76.0000V.
  • Page 38 M88XX Series Programmable DC Power Suppliers 2) If you want to query the maximum setup current value, please send command [:]CURR? MAX, If the return command is 2.0000，it means the maximum setup current value of power supply is 2.0000A 3) If you want to query the minimum setup current value, please send command [:]CURR? MIN, If the return command is：0.0000，it means the minimum setup current value of the power supply is 0.0000A.
  • Page 39 Nanjing Maynuo Electronics Co., Ltd Parameter：1|2|4|8 1. Set 1 file of 200 list steps in the list operation； 2. Set 2 files of 100 list steps in the list operation； 4. Set 4 files of 50 list steps in the list operation； 8.
  • Page 40 M88XX Series Programmable DC Power Suppliers Command [:]LIST:MODE <mode> 1. This command is used to set the working mode of the list operation files. Parameters: mode has 3 types: CONTinuous: continuous mode STEP: 1 step mode (once mode) LOOP: loop mode Return command: none Example：...
  • Page 41 Nanjing Maynuo Electronics Co., Ltd Unit：A Return command：none Example： If sending command [:]LIST:CURR 1,2, it means to set the setup current value of the first step in the list file as 2.000A. 2. Related command：to query the setup current value of the appointed step in the list file [:]LIST:CURRent? <count>...
  • Page 42 M88XX Series Programmable DC Power Suppliers Command sent [:]TRIG Command [:]TRIGger:SOURce <mode> This command is used to set the trigger mode of the power supplier. Parameter：mode has 3 types: IMMediate: keyboard trigger mode. EXTernal: external signal(TTL voltage level) mode BUS: communication command trigger mode.
  • Page 43 Nanjing Maynuo Electronics Co., Ltd Quick Reference Safety Please donot install any spare or repair the instrument without permission. In order to make sure the normal work of the instrument, please have it mended in the maintenance department designated by our company. Pease review the following safety precautions before operating our equipment.
  • Page 44 M88XX Series Programmable DC Power Suppliers 3. Unauthorized modification or misuse, 4. Operation outside of the environmental specifications for the product, or improper site preparation and maintenance. 5. Defects resulting from the circuit installed by clients themselves Attention No inform will be given for any changes in the content of the user’s guide.

This manual is also suitable for:

M8851M8811M8852M8812M8853M8871 ... Show all

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