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Tonghui TH6700 Instruction Manual

Programmable switching power supply
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Instruction Manual
OPERATION MANUAL
TH6700
Programmable Switching
Power Supply
TH6700 DC Programmable Switching Power
V1.4@2020.11

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  • Page 1 Instruction Manual OPERATION MANUAL TH6700 Programmable Switching Power Supply TH6700 DC Programmable Switching Power V1.4@2020.11...

  • Page 2: Table Of Contents

    Table of Contents Chapter 1 Overview......................1-1 1.1 Introduction ....................... 1-1 1.2 Conditions of Use ..................... 1-1 1.2.1 Power Supply ....................1-1 1.2.2 Tnvironmental Temperature and Humidity ............1-1 1.2.3 Preheat ......................1-2 Chapter 2 A Few Points to Note ..................2-1 2.1 Volume &...
  • Page 3 4.3.4 Stop Delay ......................4-4 4.3.5 Conversion Speed ..................... 4-4 4.3.6 Voltage Rise ...................... 4-5 4.3.7 Voltage Drop ...................... 4-5 4.3.8 Current Rise ...................... 4-5 4.3.9 Current Drop ...................... 4-5 4.3.10 Measurement Average ..................4-5 4.3.11 Simulated Internal Resistance ................. 4-6 4.3.12 Drain Resistance .....................
  • Page 4 4.9.1 File Load ......................4-14 4.9.2 File Copy ......................4-14 4.10 Tools Page ......................4-14 4.10.1 User Calibration ..................... 4-15 4.10.2 System Reset ....................4-16 4.10.3 Restore Factory ..................... 4-16 4.10.4 Upgrade ......................4-16 Chapter 5 Correct Output of Instrument ................ 5-1 5.1 Output Terminal......................
  • Page 5 6.4.3 Driver Installation ....................6-5 6.5 LXI ..........................6-6 6.5.1 LXI Remote Control System ................6-6 6.5.2 System Configuration ..................6-6 6.6 Communication Command ..................6-6 6.6.1 Communication Command SCPI ..............6-7 6.6.2 Communication Command MODBUS ............. 6-17 Chapter 7 Technical Specifications ................7-1 Chapter 8 Warranty ......................

  • Page 6: Chapter 1 Overview

    1.1 Introduction TH6700 series is a programmable switching DC power supply. This series of instruments is powerful, superior performance, and the LCD display, clear display, operation menu, fast and convenient, can well...
  • Page 7 TH6700 Series Instruction Manual Warm-up time after power on: ≥ 30 minutes Chapter 1--2...

  • Page 8: Chapter 2 A Few Points To Note

    TH6700 Series Instruction Manual Chapter 2 A Few Points to Note Please do not use it in adverse environment such as dusty, vibrating, direct sunlight and corrosive gases. If the instrument is not used for a long time, please store it in the original packing box or similar box in a ventilated room with temperature from 5℃...

  • Page 9: Electromagnetic Compatibility

    TH6700 Series Instruction Manual The leakage current is not more than 3.5mA. 2.3 Electromagnetic Compatibility Power transient sensitivity according to the requirements of GB6833.4. Conductivity sensitivity according to the requirements of GB6833.6. Radiation interference according to the requirements of GB6833.10.

  • Page 10: Chapter 3 Panel Description

    TH6700 Series Instruction Manual Chapter 3 Panel Description The content of this chapter is only a general description, the specific operation and detailed explanation refer to the corresponding content of Chapter 4. 3.1 Front Panel Description The front panel diagram is shown in Figure 3-1.

  • Page 11: Rear Panel Description

    TH6700 Series Instruction Manual SETUP main menu key Used to access the measurement setup page. SYSTEM main menu key Used to access the system setup page. FILE main menu key Used to access the file setup page. TOOLS main menu key Used to access the tool setup page.
  • Page 12 TH6700 Series Instruction Manual Figure 3-2 The introduction is shown in Table 3-2: External port Used for external input control, inline, etc. Output terminal For output voltage, current For heat dissipation RS-232C Serial communication for remote control USB DEVICE interface for remote control...

  • Page 13: Display Area Description

    TH6700 Series Instruction Manual Figure 3-2-1 The introduction is shown in Table 3-2-1 External port Used for external input control, inline, etc. Output terminal For output voltage, current, see 5-1 for details For heat dissipation RS-232C Serial communication for remote control...

  • Page 14: Display

    TH6700 Series Instruction Manual Figure 3-3 (1) Display page menu area: This area shows the name of the currently displayed page. (2) Prompt and warning message area: This area displays a prompt message when the instrument is running or operating incorrectly.
  • Page 15 TH6700 Series Instruction Manual This page displays the list output information and optionally loads the output list file. ⚫ General Settings (GENERAL SET) This page displays general setup parameters such as overvoltage protection, voltage rise time, etc. ⚫ Power Failure Setting (POWER SET) This page displays the control mode, online mode, and other setting parameters.

  • Page 16: Chapter 4 Operating Instructions

    TH6700 Series Instruction Manual Chapter 4 Operating Instructions 4.1 Output Display Page Press the front panel DISP key to enter the output display interface, as shown in Figure 4-1 Figure 4-1 4.1.1 Voltage Setting The voltage setting range is from 0 to the maximum value. The voltage can be set by the VEST key on the front panel.

  • Page 17: Output

    TH6700 Series Instruction Manual Timer setting can be set through the TEST key on the front panel. When the timing time value is selected, the blue cursor is displayed, and the specific value is entered directly through the numeric keys, and confirmed by the ENTER key.

  • Page 18: File Selection

    TH6700 Series Instruction Manual Figure 4-2 4.2.1 File Selection Move the cursor to the current list and enter the list file number by the numeric keys, as shown in Figure 4-2-1. Figure 4-2-1 4.2.2 File Load After selecting the file, you can press the LOAD key or page selection load to load the file, the key will light up red, and the page will show the output result after opening the output, as shown in Figure 4-2-2.

  • Page 19: General Setup Page

    TH6700 Series Instruction Manual Figure 4-2-2 4.3 General Setup Page Press the SETUP key to enter the general setup page, as shown in Figure 4-3. Figure 4-3 4.3.1 Overvoltage Protection Protection parameter for the instrument output, when the sampled output voltage value exceeds the overvoltage protection value, the instrument output shuts down to ensure the safety of the instrument and the load.

  • Page 20: Voltage Rise

    TH6700 Series Instruction Manual constant voltage high speed, constant current high speed, constant voltage settable and constant current settable, and different modes can be selected through the panel. Constant voltage high speed: set voltage value immediately to be sent to DA converter, output.

  • Page 21: Simulated Internal Resistance

    TH6700 Series Instruction Manual 2.Medium speed: between low speed and high speed 3.High speed: fast sampling speed, slightly lower accuracy 4.3.11 Simulated Internal Resistance The internal resistance used as a voltage source can be changed via the numeric keypad input.

  • Page 22: Constant Current Mode

    TH6700 Series Instruction Manual the resistance is accessed from the external port, the resistance size is used as the input of the machine, the resistance range 0~10KΩ, corresponding to the input of the machine 0~max. External resistance drop: The instrument panel control is disabled and the resistor is accessed from the external port, the size of the resistor is used as the input of the machine, the resistance range 0~10KΩ,...

  • Page 23: External Logic

    TH6700 Series Instruction Manual host. Slave parallel: Two or three instruments are connected in parallel as slaves. (Up to three units in parallel, including the host) Note: Only the same type of instrument can be connected when online! The instrument does not accept commands when it is used as a slave! 4.4.4 External Logic...
  • Page 24 TH6700 Series Instruction Manual Figure 4-5-1 Press Voltage Setup to enter the Voltage Setup page, as shown in Figure 4-5-1-1 Figure 4-5-1-1 Starting point: from the first column of No.; Starting value: the value of the starting point; Number of steps: the total number of steps set from the starting point;...

  • Page 25: List Output Setting

    TH6700 Series Instruction Manual Figure 4-5-1-2 4.5.2 List Output Setting When the list output, you can also set the list output, the trigger number is the NO. number of the list output, you can also loop some of these NO., just set the loop number, set the number of loops that the loop number of NO.

  • Page 26: System Language

    TH6700 Series Instruction Manual The instrument key sounds and is turned on or off by page selection. 4.6.2 System Language Instrument language, select Chinese or English through the page. 4.6.3 System Password Instrument password, user calibration and other uses, select open or close through the page, can be modified, the factory original password is 6700, universal password is 67006700.

  • Page 27: Lan

    TH6700 Series Instruction Manual Increase or decrease by page selection, baud rates are 9600, 19200, 28800, 38400, 96000, 115200. 4.7.1.3 Instrument Address If using MODBUS protocol, select local address increase or decrease through the page, range 1~32. 4.7.1.4 Parsing Protocol The instrument supports both SCPI and MODBUS protocols by selecting the protocol from the page.

  • Page 28: Usbcdc

    TH6700 Series Instruction Manual Select the bus mode as USBTMC via the page. 4.7.4 USBCDC Select the bus mode as USBCDC via the page. 4.7.5 LXI 4.7.5.1 Bus Mode Select the bus mode as LXI via the page, as shown in Figure 4-7-5-1.

  • Page 29: File Load

    TH6700 Series Instruction Manual keyboard input, press ENTER to confirm the input, the file will be suffixed with STA. The current save file includes general settings, power-off settings, communication settings, system settings, etc. 4.8.2 File Load If you want to load a saved file, move the cursor to the file and click...

  • Page 30: User Calibration

    TH6700 Series Instruction Manual Press TOOLS to enter the External File page, as shown in Figure 4- Figure 4-10 4.10.1 User Calibration If the instrument is used for a period of time or the environmental temperature deviation is large, the user can calibrate the data of the instrument.

  • Page 31: System Reset

    TH6700 Series Instruction Manual 4.10.1.2 Clear Calibration If the calibration data is wrong or the data needs to be updated, you need to select clear calibration data through the page and re-calibrate, otherwise the data is not accurate. 4.10.2 System Reset The system performs a reset and does not clear the data.

  • Page 32: Chapter 5 Correct Output Of Instrument

    TH6700 Series Instruction Manual Chapter 5 Correct Output of Instrument (1) Connect to the power supply and press the power switch. (2) The instrument is turned on and preheated for 30 minutes. (3) According to the actual demand, choose the appropriate connection cable and connect the load to the [+, -] port on the rear panel of the instrument with the connection cable.

  • Page 33: Interface Schematic

    TH6700 Series Instruction Manual As seen in Figure 5-1-3, the output interface has 9 outputs, which are described in Table 5-1-3. Pin Position Function Description U, I input + terminal SENSE+ N.C. Empty Foot SENSE- U, I output - terminal Table 5-1-3 5.2 Interface Schematic...
  • Page 34 TH6700 Series Instruction Manual EXT-V CV External voltage controls the voltage output. 0~10V is used to CONT control the full-scale voltage output of the instrument. (0%~100%) EXT-V CC External voltage controls the current output. 0~10V is used to CONT control the full-scale current output of the instrument (0%~100%) External resistor controls the voltage output.

  • Page 35: Instrument Series Output

    TH6700 Series Instruction Manual signal is used. Internal circuitry is boosted to 5V, 10kΩ pull-up CONT resistor SER SLV IN Serial slave machine input for master-slave serial operation N.C. No connection 5.3 Instrument Series Output This series instrument can output two instruments of the same model...

  • Page 36: Instrument Parallel Output

    TH6700 Series Instruction Manual Host Pin Position Serial Slave Pin Position 16 -- A COM ---------------- 25 --SER SLV IN 21 --OUTPUT ON STATUS ---------------- 24 --OUT OFF/ON CONT 20 --ALM STATUS ---------------- 12 --SHUTDOWN 17 --STATUS COM ---------------- 2 --D COM...

  • Page 37: Host Two Parallel

    TH6700 Series Instruction Manual Figure 5-4-1 Host Pin Position Slave Pin Position 11 -- I MON ---------------- 1 -- CURRENT SHARE 21 --OUTPUT ON STATUS ---------------- 24 --OUT OFF/ON CONT 20 --ALM STATUS ---------------- 12 --SHUTDOWN 12 --SHUTDOWN ---------------- 20 --ALM STATUS...
  • Page 38 TH6700 Series Instruction Manual Figure 5-4-2 The schematic diagram of pin position of parallel connection is shown in Figure 5-4-2-1 Figure 5-4-2-1 Host Pin Position Slave pin 1 Slave pin 2 11 -- I MON ------- 1 --CURRENT ------- 1--CURRENT SHARE...

  • Page 39: External Control Output

    TH6700 Series Instruction Manual 17 --STATUS COM ------- 17 --STATUS COM ------- 17 --STATUS COM 2 ---D COM 15 --FEE DBACK ------- 15 --FEE DBACK ------- 15 --FEE DBACK 14 ---CURRENT_SUM_2 ------------------------------------------------------- 3 ---CURRENT SUM OUT 13 --CURRENT_SUM_1 ------- 3 --CURRENT SUM OUT...

  • Page 40: Cv External Resistance Drop

    TH6700 Series Instruction Manual Figure 5-5-2 5.5.3 CV External Resistance Drop Change the constant voltage control to external resistance drop within the power failure setting, when the external resistance 0~10kΩ, corresponding to the instrument voltage setting of 30~0V. The rear panel resistor wiring is shown in Figure 5-5-3 Figure 5-5-3 5.5.4 CC External Voltage...

  • Page 41: Cc External Resistance Rise

    TH6700 Series Instruction Manual Figure 5-5-4 5.5.5 CC External Resistance Rise Change the constant current control to external resistance rise within the power failure setting, when the external resistance 0~10kΩ, corresponding to the instrument voltage setting 0~36A (TH6711), 0~72A (TH6712), 0~108A (TH6713).

  • Page 42: Chapter 6 Interface & Communication

    TH6700 Series Instruction Manual Chapter 6 Interface & Communication The instrument can use RS232C serial interface, LAN port and USB interface for data communication and remote control without instrument panel, but all three cannot be used simultaneously; they have the same program control commands, but use different hardware configurations and communication protocols.

  • Page 43: Communication With Computer

    TH6700 Series Instruction Manual Grounding Table 6-1 As with most serial ports in the world, the serial interface of this instrument is not strictly based on the RS-232 standard, but rather provides only a minimal subset of it. This is shown in Table 6-2 below:...

  • Page 44: Lan

    (length should be less than 1.5m) with two- core shielded wire as shown in the diagram or purchase the serial interface cable between the computer and the instrument from Tonghui Electronics Co. Ltd. or buy the standard DB9-core cable directly (crossover cable).

  • Page 45: System Configuration

    USB interface and is compatible with the SCPI commands of this instrument. 6.3.2 System Configuration Connect the USB port on the rear panel of the TH6700 to the USB port on the host computer via the USB cable, and the Device Manager appears as shown in Figure 6-5.

  • Page 46: System Configuration

    USB port on the host computer via the USB cable. 6.4.3 Driver Installation The first time you connect the TH6700 to the computer with the USB cable, the computer will prompt in the lower right corner of the desktop: “New Hardware Found", followed by a dialog box asking for driver...

  • Page 47: Lxi

    SCPI commands. 6.5.2 System Configuration Connect the LAN port on the rear panel of the TH6700 series instrument to the computer’s network port via a network cable. Set the LXI IP to be ready for use, as shown in Figure 6-7.

  • Page 48: Communication Command Scpi

    TH6700 Series Instruction Manual Programmable Instruments) commands and MODBUS commands. SCPI commands are tree-structured and can have up to three levels, where the highest level is called a subsystem command. Only when a subsystem command is selected, the layers under that command can be valid, using a colon to separate the command hierarchy.
  • Page 49 TH6700 Series Instruction Manual ⚫ SYSTem System setup ⚫ FILEs File operation 6.6.1.3 Public Commands (1) *IDN? Query instrument model, factory date and other information (2) *RST Reset instrument 6.6.1.4 DISPlay Subsystem Command Set (1) DISPlay:PAGE OPD Output display page...
  • Page 50 TH6700 Series Instruction Manual Query current page 6.6.1.5 OUTPut Subsystem Command Set (1) OUTPut ON/1 Turn on output (2) OUTPut OFF/0 Turn off output (3) OUTPut? Query output status 6.6.1.6 VOLTage Subsystem Command Set (1) VOLTage 20 Set the voltage setting value to 20V...
  • Page 51 TH6700 Series Instruction Manual Set timer maximum value (4) TIMer? Query timer time 6.6.1.9 APPLy Subsystem Command Set (1) APPLy 1.1,2.2 Set the voltage setting value and current setting value at the same time, voltage setting is 1.1V, current setting is 2.2A...
  • Page 52 TH6700 Series Instruction Manual Set the maximum value of overcurrent protection (8) NORmalSET:OCP? Query the current overcurrent protection value (9) NORmalSET:OPTONDLY 20 Set the start-up delay time to 20s (10) NORmalSET:OPTONDLY MAX Set the maximum value of start-up delay time...
  • Page 53 TH6700 Series Instruction Manual Set the maximum voltage rise rate (24) NORmalSET:VOLTRISE MIN Set the minimum voltage rise rate (25) NORmalSET:VOLTRISE? Query the current voltage rise rate (26) NORmalSET:VOLTFALL 20 Set the voltage drop rate to 20V/s (27) NORmalSET:VOLTFALL MAX...
  • Page 54 TH6700 Series Instruction Manual Drain resistor off (40) NORmalSET:BLEEDRES? Query the current drain resistor open status (41) NORmalSET:INTRES 0.2 Set the simulated internal resistance to 0.2Ω (42) NORmalSET:INTRES MAX Set the maximum simulated internal resistance (43) NORmalSET:INTRES MIN Set the minimum simulated internal resistance...
  • Page 55 TH6700 Series Instruction Manual Constant current control is set to panel control (7) POWerSET:CCMODE EXTVOLT Constant current control is set to external voltage (8) POWerSET:CCMODE EXTRES+ Constant current control is set to external resistor rise (9) POWerSET:CCMODE EXTRES- Constant current control is set to external resistor drop...
  • Page 56 TH6700 Series Instruction Manual (22) POWerSET:POWERONOPT? Query the current power-up output status 6.6.1.12 TrigLIST Subsystem Command Set (1) TrigLIST:LOAD 1 Load list file 1 (2) TrigLIST:LOAD? Query the current loading file (3) TrigLIST:UNLOAD Cancel loading files (4) TrigLIST:EDIT 1 Select the file number to be set before setting...
  • Page 57 TH6700 Series Instruction Manual The selected file NO.1 current is set to 2A (16) TrigLIST:CURRent? 1 Query the current setting value of the selected file NO.1 to be set (17) TrigLIST:TIMEr 1,61 The selected file NO.1 time is set to 61s (18) TrigLIST:TIMEr? 1 Query the time setting value of the selected file NO.1 to be set...

  • Page 58: Communication Command Modbus

    TH6700 Series Instruction Manual Load the file with internal serial number 1 (2) FILEs:UNLOAD 1 Unload the file with internal serial number 1 (3) FILEs:DELETE 1 Delete the file with internal serial number 1 (4) FILEs:STORe 1,123 Save file to internal, 1 is serial number, 123 is file name...
  • Page 59 TH6700 Series Instruction Manual 1. Instrument address: It is the local address of the instrument, which can be set in the communication setting interface of the instrument, and the value range is: 1~32 2. Function code: This command can write one data or multiple data, so its code is: 0x10.
  • Page 60 TH6700 Series Instruction Manual 8 (U16) write List file 8 9 (U16) write List file 9 10 (U16) write List file 10 11 (U16) write List setup page 12 (U16) write List display page 13 (U16) write List output page...
  • Page 61 TH6700 Series Instruction Manual read 0x0027 Voltage drop FLOAT write read 0x0028 Current rise FLOAT write read 0x0029 Current drop FLOAT write read Simulated internal 0x002A FLOAT write resistance read 0x002B Drain resistance 0 (U16) write 1(U16) write read 0x0030...
  • Page 62 TH6700 Series Instruction Manual 3 (U16) write External resistance drop read Constant current control 0x0041 0 (U16) write Panel control mode 1 (U16) write External voltage 2 (U16) write External resistance rise 3 (U16) write External resistance drop read 0x0042...
  • Page 63 TH6700 Series Instruction Manual Set the end of the cycle 0x0057 (U16) write number of the edited file Set the number of cycles 0x0058 (U16) write of the edited file 0x0060 Load internal files (U16) write File number 0x0061 Unload internal files...

  • Page 64: Chapter 7 Technical Specifications

    TH6700 Series Instruction Manual Chapter 7 Technical Specifications TH671X Parameters TH6711 TH6712 TH6713 Rated Voltage Rated Current 100A Rated Power 360W 720W 1080W Maximum Voltage 31.5V Maximum Current 108A Power Limit Approx. rated power*105% Voltage Setting Range 0~31.5V Current Setting Range...
  • Page 65 TH6700 Series Instruction Manual Current Setpoint Resolution 10mA 10mA 100mA ≤0.1%+10mV Voltage Setpoint Accuracy 25℃± 5℃ (>0.1V) ≤0.1%+30mA ≤0.1%+60mA ≤0.1%+100mA Current Setpoint Accuracy 25℃± 5℃ (>0.1A) Voltage Readback Resolution 10mV Current Readback Resolution 10mA 10mA 100mA ≤0.1%+20mV Voltage Readback Accuracy 25℃± 5℃ (>0.1V) ≤0.1%+40mA...
  • Page 66 TH6700 Series Instruction Manual 0~5.926Ω 0~2.963Ω 0~1.975Ω Simulated Internal Resistance Setting Range ≤43mV CV Power Regulation Rate ≤18.5mA ≤32mA ≤45.5mA CC Power Regulation Rate ≤45mV CV Load Regulation Rate ≤18.5mA ≤32mA ≤45.5mA CC Load Regulation Rate ≤60mVp-p and ≤80mVp-p and ≤100mVp-p...
  • Page 67 TH6700 Series Instruction Manual Efficiency 200VAC (full load) TH673X Parameters TH6731 TH6732 TH6733 Rated Voltage 250V Rated Current 4.2A 8.4A 12.6A Rated Power 360W 720W 1080W Maximum Voltage 262.5V Maximum Current 4.5A 13.5A Power Limit Approx. rated power*105% Voltage Setting Range 0~262.5V...
  • Page 68 TH6700 Series Instruction Manual Current Setpoint Resolution 10mA ≤0.1%+200mV Voltage Setpoint accuracy 25℃± 5℃ (>0.1V) ≤0.1%+5mA ≤0.1%+10mA ≤0.1%+15mA Current Setpoint accuracy 25℃± 5℃ (>0.1A) Voltage Readback Resolution 100mV Current Readback Resolution 10mA ≤0.1%+200mV Voltage Readback Accuracy 25℃± 5℃ (>0.1V) ≤0.1%+5mA ≤0.1%+10mA...
  • Page 69 TH6700 Series Instruction Manual 0~555.5Ω 0~277.8Ω 0~185.1Ω Simulated Internal Resistance Setting Range ≤403mV CV Power Regulation Rate ≤6.44mA ≤7.88mA ≤9.32mA CC Power Regulation Rate ≤405mV CV Load Regulation Rate ≤6.44mA ≤7.88mA ≤9.32mA CC Load Regulation Rate ≤150mVp-p ≤200mVp-p ≤200mVp-p CV Ripple and Noise (20Hz-2MHz)
  • Page 70 TH6700 Series Instruction Manual Efficiency 200VAC (full load) ⚫ Power regulation rate (88-132VAC and 170-265VAC, constant load) ⚫ Load regulation rate (no load - full load, constant input voltage) ⚫ Rise time (10%-90% of rated output voltage with rated resistive load) ⚫...

  • Page 71: Chapter 8 Warranty

    TH6700 Series Instruction Manual Chapter 8 Warranty Warranty period: The warranty period is two years for those who use the instrument purchased from the Company since the date of shipment from the Company, and for those who purchase from the operating department since the date of shipment from the operating department.

  • Page 72: Chapter 9 Appendix

    TH6700 Series Instruction Manual Chapter 9 Appendix V1.2: Add U disk data saving function, see 4.1.5 V1.3: Add TH672X series parameter index V1.4: Add TH673X/TH674X series rear panel description (see 5.1) and parameter index Chapter 9--1...

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