Tonghui TH671 A Series User manual

H6700A Instruction Manual
Operation Manual
TH6700A
Programmable DC Power Supply
[email protected]

H6700A Instruction Manual
CONTENTS
Chapter 1 Overview............................................................................................................................ 1
1.1 Introduction..................................................................................................................1
1.2 Conditions of use..........................................................................................................1
1.2.1 Power supply..................................................................................................... 1
1.2.2 Ambient temperature and humidity.........................................................................2
1.2.3 Preheating.............................................................................................................2
1.3 Safety Requirement.......................................................................................................2
1.3.1 Electrical Insulation Resistance .............................................................................. 2
1.3.2 Dielectric strength ................................................................................................. 2
1.3.3 Leakage Current....................................................................................................2
1.4 Electromagnetic Compatibility.......................................................................................2
1.5 Notes...........................................................................................................................3
Chapter 2 Panel Description ................................................................................................................4
2.1 Front Panel Description................................................................................................. 4
2.2 Rear Panel Description..................................................................................................5
2.3 Display Overview .........................................................................................................7
2.3.1 Display Indicators.................................................................................................. 7
2.3.2 Show page ............................................................................................................8
Chapter 3 Operating Instructions..........................................................................................................9
3.1 Output Display Page .....................................................................................................9
3.2 Function Setting Page....................................................................................................9
3.2.1 Startup/shutdown delay.........................................................................................11
3.2.2 Conversion speed .................................................................................................11
3.2.3 Voltage, current rise/fall rate................................................................................. 12
3.2.4 Analog Internal Resistance...................................................................................12
3.2.5 Drain Resistor ..................................................................................................... 12
3.2.6 Buzzer Switch.....................................................................................................12
3.2.7 Measured Average ...............................................................................................13
3.2.8 Lockout Mode.....................................................................................................13
3.2.9 Bus Mode ...........................................................................................................13
3.2.10 System Settings................................................................................................... 13
3.2.11 Power Failure Setting...........................................................................................14
3.3 OVP/OCP Setup Page .................................................................................................14
3.4 Set Settings Page ........................................................................................................15
3.4.1 CC and CV modes...............................................................................................16
3.5 Utility Setup Page....................................................................................................... 17
3.5.1 File Copy to Memory...........................................................................................18
3.5.2 File Loading........................................................................................................19
3.5.3 File Deletion .......................................................................................................19
3.5.4 File Format .........................................................................................................20
3.5.5 Error Code.......................................................................................................... 21
3.6 POWER Setup Page.................................................................................................... 21
3.6.1 Constant Pressure Control.................................................................................... 22
3.6.2 Constant current control.......................................................................................23

H6700A Instruction Manual
3.6.3 Power-on Output .................................................................................................23
3.6.4 Online Mode.......................................................................................................24
3.6.5 External Logic.....................................................................................................24
Chapter 4 Correct output of the instrument .........................................................................................25
4.1 Output Side................................................................................................................ 25
4.2 Interface Schematic..................................................................................................... 27
4.3 Instrument Series Output.............................................................................................28
4.4 Instrument Parallel Output...........................................................................................30
4.4.1 Host in one - parallel............................................................................................ 30
4.4.2 Host in Two-Parallel............................................................................................31
4.5 External Control Outputs.............................................................................................33
4.5.1 CV External Voltage ............................................................................................ 33
4.5.2 CV External Resistor Rise.................................................................................... 34
4.5.3 CV External Resistance Drop ............................................................................... 34
4.5.4 CC External Voltage ............................................................................................ 34
4.5.5 CC external resistor rising....................................................................................35
4.5.6 CC External Resistance Drop ...............................................................................35
Chapter 5 Interfaces and Communication ...........................................................................................37
5.1 LAN ..........................................................................................................................37
5.1.1 LAN remote control system.................................................................................. 37
5.1.2 System Configuration ..........................................................................................37
5.2 USBTMC................................................................................................................... 37
5.2.1 USBTMC Remote Control System .......................................................................37
5.2.2 System Configuration ..........................................................................................37
5.3 USBCDC................................................................................................................... 37
5.3.1 USBCDC Virtual Serial Port ................................................................................37
5.3.2 System Configuration ..........................................................................................38
5.4 Communication Instruction..........................................................................................38
5.4.1 Basic rules of instruction structure........................................................................ 38
5.4.2 Subsystem commands for the instrument............................................................... 38
5.4.3 Public Commands................................................................................................39
5.4.4 APPLY subsystem command set...........................................................................39
5.4.5 DISPLAY subsystem command set....................................................................... 40
5.4.6 MEASURE subsystem command set.....................................................................40
5.4.7 OUTPUT subsystem command set........................................................................41
5.4.8 SEHSE Subsystem Command Set......................................................................... 43
5.4.9 SOURce subsystem command set......................................................................... 43
5.4.10 SYSTEM subsystem command set........................................................................47
Chapter 6 Technical Parameter Indicators........................................................................................... 54
Chapter 7 Warranty and Changes ....................................................................................................... 59
7.1 Warranty ....................................................................................................................59
7.2 Instruction Manual Change Record .............................................................................. 59
Chapter 8 Appendices .......................................................................................................................60
8.1 Instrument Warning Code............................................................................................ 60
8.2 Instrument Error Code................................................................................................. 60
8.3 Digital Display Comparison Table................................................................................ 61

H6700A Instruction Manual
1
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.
1.1 Introduction
TH6700A series is a programmable switching DC power supply. This series of
instrument is powerful, superior performance, and the use of digital tube display, display
clear, quick and easy to operate, can be well adapted to the production site rapid operation
needs and laboratory needs of high precision and high stability, at the same time, the
instrument provides a USB interface and LAN port for the instrument to be used in the
remote operation of the computer to provide the conditions.
The special features and advantages of the instrument are listed below:
Adopt digital tube display, reduce power consumption, display simple and clear
High accuracy and resolution
Low ripple and low noise
Intelligent fan control saves energy and reduces noise
Software control and detection via computer
Precise fine-tuning of values by knob and cursor
High current power and high stability
1.2 Conditions of use
1.2.1 Power supply
Supply Voltage: 88~265V
Power frequency: 50Hz/60Hz (1±5%)
Power consumption: <50VA

H6700A Instruction Manual
2
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
less than 50Munder reference operating conditions;
Insulation resistance between the power supply terminals and the housing under hot
and humid transportation conditions is not less than 2M;
1.3.2 Dielectric strength
Under the reference working conditions, the power terminals and the shell can
withstand the rated voltage of 2.1kV DC voltage for 1 minute without breakdown and flying
arc phenomenon.
1.3.3 Leakage Current
Leakage current is not more than 3.5mA.
1.4 Electromagnetic Compatibility
Power transient sensitivity according to GB6833.4.
Conductivity sensitivity is according to the requirements of GB6833.6.
Radiation interference according to the requirements of GB6833.10.

H6700A Instruction Manual
3
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. The air should not contain harmful impurities that corrode
the measuring instrument, and it should be avoided from direct sunlight.
This instrument has been carefully designed to minimize spurious interference due to
inputs from the AC power supply side, however, it should still be used in as low a spurious
environment as possible, and if this cannot be avoided, a power supply filter should be
installed.
There is a cooling fan at the back of the instrument and cooling vents on the left and
right to avoid the internal temperature from rising and affecting the accuracy, please make
sure the instrument is in a well ventilated condition.
Do not switch the instrument on and off frequently as this may cause loss of stored
data.

H6700A Instruction Manual
4
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.
2.1 Front Panel Description
The front panel schematic is shown in Figure 2-1.
Figure 2-1
See Table 2-1 for an introduction:
1
Trademarks & Models
Show logo, model number and power supply parameters
2
Power switch
Turn on or cut off the 220V mains power, when it is in O position, cut
off the power; when it is in one position, turn on the power.
3
Digital display screen
Display all measurement parameters, status, measurement results, and
more.
4
Function
The function keys are used to configure the various parameters of the
power supply
5
OVP/OCP
Setting the overvoltage or overcurrent protection level
6
Set
Setting the output voltage and output current
7
Utility
For customizing test sequences for testing

H6700A Instruction Manual
5
8
Lock/Local
Lock or unlock panel keys to prevent changes to panel settings
9
PWR DSPL
To change the display data from V/A to V/W or W/A, press the
Voltage knob to change to V/W and the Current knob to change to
W/A.
10
Voltage
Current
Knobs for adjusting value size and moving the cursor
11
USB port
HOST port on USB for updating firmware or loading list files
Table 2-1
2.2 Rear Panel Description
The rear panel schematic of the TH67X1A, TH67X2A series is shown in Figure 2-2.
TH6731/TH6741 TH6711/TH6721

H6700A Instruction Manual
6
TH6712/TH6722 TH6732/TH6742
Figure 2-2
See Table 2-2 for an introduction:
1
External port
For external input control, on-line, etc.
2
Output side
For output voltage, current
3
Fan (loanword)
For heat dissipation
4
USB
USB DEVICE interface for remote control
5
LAN
LAN port for remote control
6
Three-wire power
socket
Access to power supply
7
Nameplate
Record model number, lot number, etc.
Table 2-2
The rear panel schematic of the TH67X3A series is shown in Figure 2-2-1.
TH6713/TH6723 TH6733/TH6743

H6700A Instruction Manual
7
Figure 2-2-1
See Table 2-2-1 for introduction
1
external port
For external input control, on-line, etc.
2
output side
For output voltage, current
3
fan (loanword)
For heat dissipation
4
USB
USB DEVICE interface for remote control
5
LAN
LAN port for remote control
6
wiring outlet
Access to power supply
7
nameplate
Record model number, lot number, etc.
Table 2-2-1
2.3 Display Overview
2.3.1 Display Indicators
A schematic diagram of the display indicators is shown in Figure 2-3-1
Figure 2-3-1
(1) VSR: Voltage Switching Rate
(2) CV: Constant Voltage Mode
(3) RMT: Remote Control Mode
(4) ALM: Alarm on status
(5) DLY: Delayed Output