Maynuo Electronic M88 Series User Manual
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Maynuo Electronic M88 Series User Manual

Programmable dc power supply
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USER MANUAL
M88 Series Programmable DC Power Supply
M8811/M8812/M8813/M8831/
M8851/M8852/M8853/
M8871/M8872/M8873/M8874
Version: V20121229
1

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  • Page 1 USER MANUAL M88 Series Programmable DC Power Supply M8811/M8812/M8813/M8831/ M8851/M8852/M8853/ M8871/M8872/M8873/M8874 Version: V20121229...

  • Page 2: Table Of Contents

    M88 Series Programmable DC Power Supply Content Chapter 1 Introduction ........................3 Chapter 2 Technical Specifications ....................4 2.1 Main Technical Specification ...................... 4 2.2 Supplemental Characteristics ....................7 2.3 M88 Power Supply Dimension....................7 Chapter 3 Quick Start ........................10 3.1 Front Panel and Rear Panel ....................

  • Page 3: Chapter 1 Introduction

    M88 power supplies provides versatile solutions for your design and test requirements. The M88 series can not only be programmed through the keyboard on the panel, but also be functioned as voltmeter and milliohmmeter, which will bring great convenience to the users.

  • Page 4: Chapter 2 Technical Specifications

    M88 Series Programmable DC Power Supply Chapter 2 Technical Specifications 2.1 Main Technical Specification M881X series power supply technical specification table Model M8811 M8812 M8813 M8831 Voltage 0-30V 0-75V 0-150V 0-30V Output Rating Current 0-5A 0-2A 0-1A 0-1A Voltage <0.01%+0.5mV <0.01%+0.5mV...
  • Page 5 Maynuo Electronic Co., Ltd M885X series power supply technical specification table Model M8851 M8852 M8853 Voltage 0-6V 0-30V 0-75V Output Rating Current 0-60A 0-20A 0-8A Voltage <0.01%+1mV <0.01%+1mV <0.01%+1mV Load Regulation Current <0.01%+0.1mA <0.01%+0.1mA <0.01%+0.1mA Voltage 0.1mV 0.5mV Setting Value...
  • Page 6 M88 Series Programmable DC Power Supply M887X series power supply technical specification table Model M8871 M8872 M8873 M8874 Voltage 0-15V 0-30V 0-75V 0-100V Output Rating Current 0-60A 0-35A 0-15A 0-11A Voltage <0.01%+1mV <0.01%+1mV <0.01%+1mV <0.01%+1mV Load Regulation Current <0.01%+0.1mA <0.01%+0.1mA <0.01%+0.1mA <0.01%+0.1mA...

  • Page 7: Supplemental Characteristics

    Maynuo Electronic Co., Ltd 2.2 Supplemental Characteristics State storage memory: 50 user-configurable stored states Recommended calibration interval: 1 year AC input ratings (selectable via switch on the rear panel) Option Opt.01: 220VAC ± 10%, 47 to 63 Hz Option Opt.02: 110VAC ± 10%, 47 to 63 Hz Cooling: forced cooling Operating temperature: 0 to 40 °C...
  • Page 8 M88 Series Programmable DC Power Supply The dimension of M885X Series is 428mm W×88mm H×453.5mm D. Diagram 2.2 M885X Power Supply Dimension...
  • Page 9 Maynuo Electronic Co., Ltd The dimension of M887X series is 482mm W×184.5mm H×531mm D. Diagram 2.3 M887X Power Supply Dimension...

  • Page 10: Chapter 3 Quick Start

    This chapter mainly focuses on the brief introduction of the surface appearance and basic functions of M88 series power supply 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 11: Preliminary Checkout

    Maynuo Electronic Co., Ltd ⑤ AC input connector 3.2 Preliminary Checkout The following steps help you verify that the power supply is ready for use. 1. Check the list of supplied items Verify that you have received the following items with your power supply. If anything is missing, contact your nearest sales office.

  • Page 12: How To Adjust The Carrying Handle

    The power supply can be mounted in a standard 19-inch rack cabinet and be easily applied to your testing system. If you want to rackmount the M88 Series, please buy M151 rack kit. Note:Remove the carrying handle and the rubber coating on the front panel before rackmounting the...
  • Page 13 Maynuo Electronic Co., Ltd Diagram 3.4 to Rackmount a Single Instrument Diagram 3.5 to Rackmount two Instruments Side by Side...

  • Page 14: Chapter 4 Panel Operation

    M88 Series Programmable DC Power Supply Chapter 4 Panel Operation This chapter mainly introduces the front-panel operation in detail from the following parts: Key Layout The Front Panel Operation Overview Voltage Set Operation Current Set Operation Saving and Recalling Operation...

  • Page 15: Front-Panel Operation Overview

    You have 2 solutions to set the constant voltage value. Solution 1: Press the ▲ and ▼ keys to change the value when the M88 series power supply is powered on. Solution 2: Step1.

  • Page 16: Constant Current Operation

    4.4 Constant Current Operation The constant current output range is from 0 A to the maximum current value of each type. It is very easy for you to set the constant current output. Step1. Power on the M88 series instrument I-Set Step2. Press Step3.
  • Page 17 Maynuo Electronic Co., Ltd Output Timer: set the duation of output SN: the serial number of the power supply Exit: exit the first-level menu When accessing to Config item, the following menu items will be displayed on the VFD display screen by pressing the keys ▲...
  • Page 18 M88 Series Programmable DC Power Supply Set the unit of current is mA A(Default) Set the unit of current is A Match Power: set the matching power 50 HZ(Default) Match 50HZ 60 HZ Match 60HZ Baudrate Set: set the baud rate...

  • Page 19: Menu Function

    Maynuo Electronic Co., Ltd Edit List File: edit list file Continuous Continuous mode, start from the first step to the last step. Loop Mode Loop mode, repeatedly execute the steps in accordance with the order of the list. Step Mode Step mode, execute single step for one trigger.
  • Page 20 M88 Series Programmable DC Power Supply you select the item Off, the output will remain the same state as last time you turned off the power supply. Setting the Key Sound (Key Sound) This instruction can switch on/off the buzzing sound when you press any key, If you select the item On, the buzzer will sound when any key was pressed.
  • Page 21 Maynuo Electronic Co., Ltd 4X50 steps means to set list file as 4X50 step 8X25 steps means to set list file as 8X25 step Enter 5) Press ▼ to select the item Edit List File, press the key to confirm.
  • Page 22 M88 Series Programmable DC Power Supply Diagram 4.3 Step Mode Automatic Test (>Auto Test) 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 number (50 steps at most). 4 data of automatic test files can be edited.

  • Page 23: Output On-Off Operation

    Maynuo Electronic Co., Ltd 10) When the VFD display shows Step 1 Min= xxxxx X，press the numeric keys to set the minimum Enter value for the qualified test, followed by pressing the key to confirm. 11) Repeat from step 5 to step 10 to set all the other steps.

  • Page 24: Milliohmmeter Function

    M88 Series Programmable DC Power Supply Diagram 4.4 Remote Measurement Terminals -S and +S are remote measurement terminals; TRQ and TRI are trigger terminals, GND is ground terminal. The TRQ is trigger output port under auto test mode. The TRQ is default as low voltage level. The TRQ provides +5V for external use when the trigger event happens.

  • Page 25: Voltmeter Function

    Maynuo Electronic Co., Ltd 4.10 Voltmeter Function The voltage of the instrument under test can be measured if the wires are connected together just as the diagram 4.6. The power supply can be worked as a voltmeter as long as it is not measuring the resistance.The accuracy of the voltmeter is 5 1 /2.

  • Page 26: Chapter 5 Remote Operation Mode

    Before carrying out the remote operation mode, please use the voltage level converter cable (M131) provided by Maynuo Electronic to connect the DB9 interface connector of the power supply and the RS232 interface connector of the computer for the communication. The M131 aslo can be replaced by the M132(RS485) cable and M133(USB) cable for different application.
  • Page 27 Maynuo Electronic Co., Ltd Diagram 5.2 M133 Diagram 5.3 M132 Note: It will not work if you connect the DB9 interface connector of the power supply to the RS232 interface connector of computer directly by a standard RS232 cable. Please use M131 to...

  • Page 28: Communication Between Power Supply And Pc

    M88 Series Programmable DC Power Supply 5.2 Communication between Power Supply and PC The DB9 interface connector on the rear panel of the power supply can be transferred to the interface connector of the computor through the voltage level converter cable (M131/M132/M133). The following instructions can help you understand how to control the output of power supply by PC.
  • Page 29 Maynuo Electronic Co., Ltd PC side M131（RS232） Notes: The pin 4 and 7 are paralleled. （ receive ） Each is prodvided +12V power. TXD（ send ） VCC1 The pin 4 is provided +12V when GND（ground） the DTR is enable in process of programming.

  • Page 30: 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 M88 series power supply.

  • Page 31: Command Introduction Of M88 Power Supply

    Maynuo Electronic Co., Ltd short format mnemonic. If the length is greater than the length of 4 mnemonic, and the fourth character is a vowel, short mnemonic will discard the fourth vowel character and become three characters. Example: Short-type mnemonic of ERRor is ERR, rather than the ERRO.

  • Page 32: Measurement Command

    M88 Series Programmable DC Power Supply Example: If you send command [:]SYST: ERR?,then return command ought to be"0, 'No Error'", or "50, 'Error Para Count'", or "70, 'Invalid Command'" etc.. Command [:]SYSTem:REM Command [:]SYSTem:REM is used to set remote control mode, namely the PC control mode.

  • Page 33: Setting Command

    Maynuo Electronic Co., Ltd Command [:]MEASure:CURRent? Command [:]MEASure:CURRent? is used to read output current value. Return command: Numeric Return parameters Unit: A Example: Sending command [:]MEAS:CURR?, if return command is 1.245, it means the present output current is 1.245A. Command [:]MEASure:DVM? Command [:]MEASure: DVM? is used to read input voltage of the voltmeter in the power supply.
  • Page 34 M88 Series Programmable DC Power Supply LIST sequential list mode milliohmmeter mode Return command: None Example: Sending command [:]MODE LIST, the power supply is in sequential list mode. 2. Related command [:] MODE?, to query working mode of power supply.
  • Page 35 Maynuo Electronic Co., Ltd 1) Sending command [:]CURR 3, it means to set the current value as 3A. 2) Sending command [:]CURR MAX Providing the maximum setup current value of the power supply is 2.0000A, it means to set the present current value as the maximum current value 2.0000A.

  • Page 36: List Operation Related Command

    M88 Series Programmable DC Power Supply 6.2.5 List Operation Related Command Command [:]LIST:AREA <num> 1. This command is used to set the list location division mode. Parameter: 1|2|4|8 1. Set 1 file of 200 list steps in the list operation 2.
  • Page 37 Maynuo Electronic Co., Ltd Example: If sending command [:]LIST:MODE CONT, it means the working mode of list files is set as continuous mode. 2. Related command [:]LIST:MODE?, it means to query the working mode of the current list. Return parameters: <mode>...
  • Page 38 M88 Series Programmable DC Power Supply Return command: none Example: If sending command [:]LIST:WIDT 1,2000, it means to set the delay time of the first step of the list file as 2000mS. 2. Related command [:]LIST:WIDTh? <count>, it means to query the delay time of the appointed step in the current list.
  • Page 39 The symbol on an instrument indicates that the user should refer to the operating Instructions located in the manual. Certification and Warranty M88 series power supply meet its published specifications at time of shipment from the factory. Warranty This instrument product is warranted against defects in material and workmanship for a period of one year from date of delivery.

This manual is also suitable for:

M8811M8812M8813M8831M8851M8852 ... Show all

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