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Tonghui TH671 A Series Operation Manual

Programmable dc power supply
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H6700A Instruction Manual
Operation Manual
TH6700A
Programmable DC Power Supply
V1.0.1@2023.10

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  • Page 1 H6700A Instruction Manual Operation Manual TH6700A Programmable DC Power Supply V1.0.1@2023.10...

  • Page 2: Table Of Contents

    H6700A Instruction Manual CONTENTS Chapter 1 Overview ..........................1 Introduction ........................1 Conditions of use ......................1 1.2.1 Power supply ..................... 1 1.2.2 Ambient temperature and humidity ................. 2 1.2.3 Preheating ......................2 Safety Requirement ....................... 2 Electrical Insulation Resistance ................2 1.3.1 Dielectric strength ....................
  • Page 3 H6700A Instruction Manual Power-on Output ....................23 3.6.3 Online Mode ....................... 24 3.6.4 External Logic ..................... 24 3.6.5 Chapter 4 Correct output of the instrument ..................25 Output Side ........................ 25 Interface Schematic ..................... 27 Instrument Series Output ..................... 28 Instrument Parallel Output ...................

  • Page 4: Chapter 1 Overview

    H6700A Instruction Manual Chapter 1 Overview Thank you for purchasing and using our products, before you use this instrument, please first confirm the matters according to the manual chapter 7 "set and warranty", if there is any discrepancy, please contact us as soon as possible in order to protect your rights and interests.

  • Page 5: Ambient Temperature And Humidity

    H6700A Instruction Manual 1.2.2 Ambient temperature and humidity Normal operating temperature: 0℃～40℃, Humidity: < 90%RH Reference operating temperature: 20℃± 8℃, humidity: < 80%RH Transportation ambient temperature: 0℃～55℃, humidity: 93%RH 1.2.3 Preheating Warm-up time after power on: >30 minutes 1.3 Safety Requirement This instrument is a Class I safety instrument 1.3.1 Electrical Insulation Resistance The insulation resistance between the power supply terminals and the housing is not...

  • Page 6: Notes

    H6700A Instruction Manual 1.5 Notes Please do not use in dusty, vibration, direct sunlight, corrosive gases and other adverse environments. 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 the temperature of 5℃～40℃ and relative humidity not more than 85%RH.

  • Page 7: Chapter 2 Panel Description

    H6700A Instruction Manual Chapter 2 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. Front Panel Description The front panel schematic is shown in Figure 2-1. Figure 2-1 See Table 2-1 for an introduction: Trademarks &...

  • Page 8: Rear Panel Description

    H6700A Instruction Manual Lock/Local Lock or unlock panel keys to prevent changes to panel settings To change the display data from V/A to V/W or W/A, press the PWR DSPL Voltage knob to change to V/W and the Current knob to change to W/A.
  • Page 9 H6700A Instruction Manual TH6712/TH6722 TH6732/TH6742 Figure 2-2 See Table 2-2 for an introduction: External port For external input control, on-line, etc. Output side For output voltage, current Fan (loanword) For heat dissipation USB DEVICE interface for remote control LAN port for remote control Three-wire power Access to power supply socket...

  • Page 10: Display Overview

    H6700A Instruction Manual Figure 2-2-1 See Table 2-2-1 for introduction external port For external input control, on-line, etc. output side For output voltage, current fan (loanword) For heat dissipation USB DEVICE interface for remote control LAN port for remote control wiring outlet Access to power supply nameplate...

  • Page 11: Show Page

    H6700A Instruction Manual (6) CC: Constant current mode (7) ISR: Current conversion speed (8) 20 40 60 80 100 %W: Power column indicating current power output as a percentage 2.3.2 Show page  Output Display This page is the power-up default page and shows the basic measurement display values.

  • Page 12: Chapter 3 Operating Instructions

    H6700A Instruction Manual Chapter 3 Operating Instructions 3.1 Output Display Page Power on to enter the output display interface when the current, voltage and a series of measurement parameters are set, press the Output key output, output, the key shows red. The interface displays the output voltage, current and power display value.
  • Page 13 H6700A Instruction Manual then rotate and press the Current knob to set, and finally press the Voltage knob to confirm the setting. Functional Function Setting instructions sequence F-00 Enter your Enter the password 6700 to enter the upgrade interface, which password and can upgrade the instrument software.

  • Page 14: Startup/Shutdown Delay

    H6700A Instruction Manual F-44 NETMASK F-45 NETMASK F-46 NETMASK F-47 GATEWAY F-48 GATEWAY F-49 GATEWAY F-50 GATEWAY F-88 Initialization F-89 Releases F-90 control 0-panel, 1-voltage, 2-resistance rise, 3-resistance fall mode F-91 control 0-panel, 1-voltage, 2-resistance rise, 3-resistance fall mode F-92 Power-on 0-Close, 1-Open output (of an...

  • Page 15: Voltage, Current Rise/Fall Rate

    H6700A Instruction Manual output Constant voltage can be set: set the voltage value according to the rate set to send to the DA conversion, output. For example: voltage set 20V, voltage rise rate set 5V/s, open the output, 4s later, the voltage rises to 20V. Constant current can be set: set the current value according to the set rate sent to the DA conversion, output.

  • Page 16: Measured Average

    H6700A Instruction Manual 3.2.7 Measured Average F-17: Sampling speed, there are 0-slow (low speed), 1-medium (medium speed), 2-fast (high speed), which can be selected according to the page display. Low speed: slow sampling, high accuracy Medium speed: between low and high speed High speed: fast sampling speed, slightly less accurate 3.2.8 Lockout Mode F-19: Function of pressing the Output button when the panel is locked.

  • Page 17: Power Failure Setting

    H6700A Instruction Manual 3.2.11 Power Failure Setting F-90: Output voltage control mode in constant voltage mode, 0-panel control output, 1-external voltage control output, 2-external resistor rising control output, 3-external resistor falling control output. F-91: Output current control mode in constant current mode, 0-panel control output, 1-external voltage control output, 2-external resistance rise control output, 3-external resistance fall control output.

  • Page 18: Set Settings Page

    H6700A Instruction Manual Figure 3-2 Operation Procedure: Press or rotate the Voltage knob to set the OVP value size, and press or rotate the Current knob to set the OCP value size. 3.4 Set Settings Page Press Set to enter the output voltage and current setting page, as shown in Figure 3-4.

  • Page 19: Cc And Cv Modes

    H6700A Instruction Manual Figure 3-3 Operation procedure: Press or rotate the Voltage knob to set the output voltage size, press or rotate the Current knob to set the output current size. 3.4.1 CC and CV modes When the power supply operates in constant current mode (CC), a constant current is supplied to the load.

  • Page 20: Utility Setup Page

    H6700A Instruction Manual mode and maintain the set current limit. The conditions that determine whether the power supply operates in CC mode or CV mode depend on the set current (ISET), set voltage (VSET), load resistance (RL), and critical resistance (RC). The critical resistance is determined by VSET/ISET. When the load resistance is greater than the critical resistance, the power supply will operate in CV mode.

  • Page 21: File Copy To Memory

    H6700A Instruction Manual Figure 3-5 3.5.1 File Copy to Memory Steps: First rotate the Current knob to select the test file (1~10), then rotate the Voltage knob to select to 2, and finally press the Voltage knob to confirm the copy. Example: After copying file No.

  • Page 22: File Loading

    H6700A Instruction Manual Figure 3-5-1 3.5.2 File Loading Procedure: After copying the file to memory, rotate the Voltage knob to select to 1, then press the Voltage knob to confirm loading. Example: After loading file No. 4 successfully, it will display (y 04) as Figure 3-5-2. Figure 3-5-2 3.5.3 File Deletion Steps: First rotate the Current knob to select the test file (1~10) to be deleted, and...

  • Page 23: File Format

    H6700A Instruction Manual deletion. Example: After deleting file No. 4 successfully, it will display (n 04) as Figure 3-5-3. Figure 3-5-3 3.5.4 File Format The file name must be one of the ten of t001~t010, and the file format is .csv format, otherwise the instrument will not recognize it.

  • Page 24: Error Code

    H6700A Instruction Manual As shown in the figure A1 is for the header of the file, can not be changed; B1 is the number of times the list is repeated, 1~999; C1 is the list start number; D1 is the ending serial number of the list; A2 is the header of the file, the list step number, and cannot be changed;...

  • Page 25: Constant Pressure Control

    H6700A Instruction Manual Figure 4-4 Note: Changing parameters within the power failure setting will be selected immediately after power failure again in case the setting is determined, and the parameters will have been changed after the next power up and power on. 3.6.1 Constant Pressure Control F-90: Output voltage control mode in constant voltage mode, 0-panel control output, 1-external voltage control output, 2-external resistor rising control output, 3-external...

  • Page 26: Constant Current Control

    H6700A Instruction Manual machine, the input range of 0 ~ 10V, corresponding to the output of the machine 0 ~ maximum value. 2-External resistance rise control output: the instrument panel control failure, from the external port access resistor, resistance size as the input of the machine, resistance range 0 ~ 10KΩ, corresponding to the input of the machine 0 ~ maximum value.

  • Page 27: Online Mode

    H6700A Instruction Manual 3.6.4 Online Mode F-93: This series of instruments can be more than one on-line, for stacking power, according to the need to choose series or parallel connection, 0-master, 1-master a parallel, 2-master two parallel, 3-slave parallel, 4-slave series. 0 - Host Standalone: only one machine or two instruments in series as the master unit.

  • Page 28: Chapter 4 Correct Output Of The Instrument

    H6700A Instruction Manual Chapter 4 Correct output of the instrument (1) Connect the power supply and press the power switch. (2) The instrument is switched on and warmed up for 30 minutes. (3) Select the appropriate connecting cable according to the actual needs, and connect the load to the [ +,- ] port on the rear panel of the instrument with the connecting cable.
  • Page 29 H6700A Instruction Manual Figure 4-1-3 From Figure 4-1-3 the output interface has 9 output ports, which are described in Table 4-1-3: Functionality Instruction U, I input + terminal SENSE+ N.C. Empty pin SENSE- U, I Output-Terminals Table 4-1-3...

  • Page 30: Interface Schematic

    H6700A Instruction Manual 4.2 Interface Schematic The interface pins on the rear panel of the instrument are shown in Figure 4-2. Figure 4-2 Pin Name Pin number Description CURRENT SHARE Used when operating 2 or more power supplies in parallel D COM Connected to the (-S) sense- terminal for remote sampling, or to the negative output terminal for non-remote sampling...

  • Page 31: Instrument Series Output

    H6700A Instruction Manual CURRENT_SUM_2 The current total input signal of the host from the second slave CURRENT SUM OUTPUT. Used in parallel mode only FEEDBACK Parallel control signals in master-slave parallel operation A COM Analog signal common terminal. For remote sampling, connect to the sense- terminal.
  • Page 32 H6700A Instruction Manual Figure 4-3 A diagram of the series connection legs is shown in Figure 4-3-1 Figure 4-3-1 Host Pins Tandem Slave Pins 16 - A COM ---------------- 25 -- SER SLV IN 21 --OUTPUT ON STATUS ---------------- 24 --OUT OFF/ON CONT 20 --ALM STATUS ---------------- 12 --SHUTDOWN...

  • Page 33: Instrument Parallel Output

    H6700A Instruction Manual 4.4 Instrument Parallel Output 4.4.1 Host in one - parallel Output two instruments of the same model in parallel, the instrument as the host will change the on-line mode to host one and the instrument as the slave will change the on-line mode to slave parallel in the power-off setting page, the actual voltage will be unchanged after the output is turned on and the current *2, the host will display the current as the total current of the two instruments, and the power will be the total power of the two instruments.

  • Page 34: Host In Two-Parallel

    H6700A Instruction Manual Host Pins Slave Pins 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 17 -- STATUS COM ---------------- 17 --STATUS COM 2 - D COM...
  • Page 35 H6700A Instruction Manual Figure 4-4-2 The parallel connection footage schematic is shown in Figure 4-4-2-1 Figure 4-4-2-1 Host Footprints Slave 1 Pin Slave 2 11 -- I MON ------- 1 -- CURRENT SHARE ------- 1 -- CURRENT SHARE 21 --OUTPUT ON STATUS ------- 24 --OUT OFF/ON CONT ------- 24 --OUT OFF/ON CONT 20 --ALM STATUS ------- 12 --SHUTDOWN ------- 12 --SHUTDOWN...

  • Page 36: External Control Outputs

    H6700A 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 16 --A COM -------...

  • Page 37: Cv External Resistor Rise

    H6700A Instruction Manual 4.5.2 CV External Resistor Rise The constant voltage control is changed to an external resistor rise within the power-down setting, which corresponds to the instrument voltage setting of 0~30V when the external resistor is 0~10kΩ. The rear panel resistor wiring is shown in Figure 4-5-2. Figure 4-5-2 4.5.3 CV External Resistance Drop The constant voltage control is changed to an external resistor drop within the...

  • Page 38: Cc External Resistor Rising

    H6700A Instruction Manual The rear panel voltage source wiring is shown in Figure 4-5-4. Figure 4-5-4 4.5.5 CC external resistor rising The constant current control is changed to an external resistor rise within the power-down setting, when the external resistor 0~10kΩ corresponds to the instrument voltage settings 0~36A (TH6711A), 0~72A (TH6712A), and 0~108A (TH6713A).
  • Page 39 H6700A Instruction Manual Figure 4-5-6...

  • Page 40: Chapter 5 Interfaces And Communication

    H6700A Instruction Manual Chapter 5 Interfaces and Communication The instrument can be used with LAN port and USB port for data communication and remote control without instrument panel, but they cannot be used at the same time; they have the same programmed commands but use different hardware configuration and communication protocols.

  • Page 41: System Configuration

    H6700A Instruction Manual 5.3.2 System Configuration Connect the USB port on the rear panel of the TH6700A series instrument to the USB port on the host computer via the USB cable. 5.4 Communication Instruction This instrument references the SCPI (Standard Command for Programmable Instruments) instructions.

  • Page 42: Public Commands

    H6700A Instruction Manual  MEASURE Show Query  OUTPUT Output Settings  SENSE Measurement speed  SOURCE set up  SYSTEM System Setup 5.4.3 Public Commands 5.4.3.1 Search for Instruments  Description：For querying instrument model, version, etc. Syntax: *IDN? 5.4.3.2 Instrument Reset ...

  • Page 43: Display Subsystem Command Set

    H6700A Instruction Manual MAX: Maximum value of set voltage or current for current model Example: APPL:1.1,2.2 ---- Set the output voltage 1.1V and current 1.2A. APPL? ---- Query the current set voltage current. 5.4.5 DISPLAY subsystem command set  Description: control page switching Syntax: DISPlay:MENU[:NAME] <pagenum>...

  • Page 44: Output Subsystem Command Set

    H6700A Instruction Manual 5.4.6.2 Query Output Voltage  Description： Used to query the current output and display the voltage value on the screen, unit V Syntax: MEASure[:SCALar]:VOLTage[:DC]? Example: MEAS:VOLT?---- Query current voltage value 5.4.6.3 Query Output Power  Description：Used to query the current output and display the power value on the screen, unit W Syntax: MEASure[:SCALar]:POWer[:DC]?
  • Page 45 H6700A Instruction Manual OUTP:DEL:OFF? ---- Queries the startup delay time. 5.4.7.3 Conversion speed  Description: Used to set the conversion speed of the query instrument Syntax: OUTPut:MODE {0|1|2|3|CVHS|CCHS|CVLS|CCLS} OUTPut:MODE? Parameters: 0/ CVHS ---- Constant Voltage High Speed 1/ CCHS ---- Constant Current High Speed 2/ CVLS ---- Constant pressure can be set 3/ CCLS...

  • Page 46: Sehse Subsystem Command Set

    H6700A Instruction Manual Syntax: OUTPut: PROTection? Parameters: ---- No alarm ---- Overvoltage Protection ---- Overcurrent Protection ---- Over Temperature Protection ---- Limit voltage protection Example: OUTP: PROT? ---- Query protection status 5.4.8 SEHSE Subsystem Command Set 5.4.8.1 Measurement speed  Description: Used to set the measurement speed of the query instrument Syntax: SENSe:AVERage:COUNt {0|1|2|LOW|MIDDle|HIGH} SENSe:AVERage:COUNt?
  • Page 47 H6700A Instruction Manual Parameters: <NRf> ---- Allowable current setting value for current model ---- Minimum value of current setting for current model ---- Maximum value of current setting for current model Example: CURR 2 ---- Setting the current setpoint to 2A CURR? ---- Queries the current current setting value (returns a number) 5.4.9.2...
  • Page 48 H6700A Instruction Manual CURR:SLEW:RIS? ---- Queries the current rate of rise value (return number) 5.4.9.4 Current Drop Rate  Description: Used to set the current drop rate of the query instrument Syntax: [SOURce:]CURRent:SLEW:FALLing {<NRf>|MIN|MAX} [SOURce:]CURRent:SLEW:FALLing? Parameters: <NRf> ---- Current model allowable current drop rate value ---- Current Model Current Drop Rate Min.
  • Page 49 H6700A Instruction Manual Syntax: [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] {<NRf>|MIN|MAX} [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]? Parameters: <NRf> ---- Allowable voltage setting for current model ---- Voltage setting minimum for current model ---- Voltage Setting Maximum for Current Models Example: VOLT 2 ---- Setting the voltage setting value to 2V VOLT? ---- Queries the current voltage setting (returns a number) 5.4.9.7...

  • Page 50: System Subsystem Command Set

    H6700A Instruction Manual Example: VOLT:SLEW:RIS 5 ---- Sets the voltage rise rate value to 5V/s VOLT:SLEW:RIS? ---- Queries the current voltage rise rate value (return number) 5.4.9.9 Voltage drop rate  Description: Used to set the voltage drop rate of the query instrument Syntax: [SOURce:]VOLTage:SLEW:FALLing {<NRf>|MIN|MAX} [SOURce:]VOLTage:SLEW:FALLing?
  • Page 51 H6700A Instruction Manual 5.4.10.2 Drain Resistor  Description: Used to set the query instrument's bleeder resistance Syntax: SYSTem:CONFigure:BLEeder[:STATe] {OFF|ON|0|1} SYSTem:CONFigure:BLEeder[:STATe]? Parameters: 0/ OFF ---- Off Drain Resistor 1/ ON ---- Open Drain Resistor Example: SYST:CONF:BLE 0 ---- Setting Instrument Drain Resistor Off SYST:CONF:BLE? ---- Query current bleeder resistance status (return number)
  • Page 52 H6700A Instruction Manual ---- External Voltage Control ---- External resistor control (rising) ---- External resistor control (falling) Example: SYST:CONF:VOLT:CONT 0---- Setting up CV panel control SYST:CONF:VOLT:CONT?---- Query CV control mode (return number) 5.4.10.5 Online  Description: Used to set the online status of the query instrument Syntax: SYSTem:CONFigure:MSLave {0|1|2|3|4} SYSTem:CONFigure:MSLave?
  • Page 53 H6700A Instruction Manual ---- Low ON Example: SYST:CONF:OUTP:EXT 0 ---- Setting the instrument to high level on SYST:CONF:OUTP:EXT? ---- Query instrument external logic (return number) 5.4.10.7 Power-on Output  Description: Used to set the power-up output of the query instrument Syntax: SYSTem:CONFigure:OUTPut:PON[:STATe] {OFF|ON|0|1} SYSTem:CONFigure:OUTPut:PON[:STATe]?
  • Page 54 H6700A Instruction Manual Example: SYST:COMM:ENAB 0 ---- Sets the instrument communication interface to LAN SYST:COMM:ENAB? ---- Query instrument communication interface (return number) 5.4.10.9 IP Address  Description: Used to set the IP address of the query instrument Syntax: SYSTem:COMMunicate:LAN:IPADdress <address> SYSTem:COMMunicate:LAN:IPADdress? Parameter: address---- Set IP address...
  • Page 55 H6700A Instruction Manual SYST:COMM:LAN:SMAS? ---- Query Subnet Mask 5.4.10.12 Host Address  Description: Used to query the host address of the instrument Syntax: SYSTem:COMMunicate:LAN:MAC? Parameters: mask---- Subnet mask to set Example: SYST:COMM:LAN:MAC? ---- Query host address 5.4.10.13 Output Lockout  Description: Used to set the output lock of the query instrument Syntax: SYSTem:KEYLock:MODE {0|1} SYSTem:KEYLock:MODE?
  • Page 56 H6700A Instruction Manual SYST:KLOC? ---- Query panel lock status (return digit)

  • Page 57: Chapter 6 Technical Parameter Indicators

    H6700A Instruction Manual Chapter 6 Technical Parameter Indicators TH671XA Parameters TH6711A TH6712A TH6713A Rated voltage Rated current 100A Rating 360W 720W 1080W Maximum voltage 31.5V Maximum current 108A Power limit Approx. 105% of rated power Voltage setting range 0~31.5V Current setting range 0~36A 0~72A 0~108A...
  • Page 58 H6700A Instruction Manual External Voltage Control CC Accuracy 25° C± 5° C Rated output current ± 1% External Resistance Control CV Accuracy 25° C± 5° C Rated Output Voltage ± 1.5% External resistance control CC accuracy 25° C± 5° C Rated Output Current ±...
  • Page 59 H6700A Instruction Manual Current setting value resolution 10mA 10mA 100mA ≤0.1%+10mV Voltage setpoint accuracy 25° C± 5° C (>0.1V) ≤0.1%+10mA ≤0.1%+30mA ≤0.1%+40mA Current setpoint accuracy 25° C± 5° C (>0.1A) Voltage readback resolution 10mV Current readback resolution 10mA 10mA 100mA ≤0.1%+20mV Voltage readback value accuracy 25℃±...
  • Page 60 H6700A Instruction Manual ≤1200ms Descent time (no load) ≤2ms Dynamic recovery time ( recovery to 0.1% + 10mv Overvoltage protection setting range 20~275V Overvoltage protection accuracy Rated voltage*± 2% Overcurrent protection setting range 0.45~4.72A 0.9~9.45A 1.35~14.17A Overcurrent protection accuracy Rated current*± 2% Over-temperature protection (shutdown output) Internal temperature rise decision Voltage setting value resolution...
  • Page 61 H6700A Instruction Manual ≤405mV CV load regulation rate ≤6.44mA ≤7.88mA ≤9.32mA CC load regulation rate ≤150mVp-p and ≤200mVp-p and ≤200mVp-p and CV Ripple and Noise (20Hz-2MHz) 30mVrms 30mVrms 30mVrms ≤5mArms ≤10mArms ≤15mArms CC Ripple and Noise (20Hz-2MHz) ≤150ms Rise time (full load) ≤150ms Rise time (no load) ≤300ms...

  • Page 62: Chapter 7 Warranty And Changes

    Company Statement: What are described in this manual may not be all the contents of the instrument, and Tonghui reserves the right to make improvements and enhancements to the product's performance, functions, internal structure, appearance, accessories, packaging, etc. without further explanation! For any confusion caused by the inconsistency between the manual and...

  • Page 63: Chapter 8 Appendices

    H6700A Instruction Manual Chapter 8 Appendices 8.1 Instrument Warning Code Warning Code Instrument Display Meaning USB flash drive insertion USB flash drive removal Instrument is outputting, turn off first External Level Conflict Output overpower Over Pressure Alarm Overcurrent Alarm Over Temperature Alarm ALM Alarm External logic low, panel not available 8.2 Instrument Error Code...

  • Page 64: Digital Display Comparison Table

    H6700A Instruction Manual 8.3 Digital Display Comparison Table...

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