Tonghui TH6700 User manual

Instruction Manual
OPERATION MANUAL
TH6700
Programmable Switching
Power Supply
TH6700 DC Programmable Switching Power
[email protected]

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 & Weight......................................................................................................2-1
2.2 Safety Requirements................................................................................................2-1
2.2.1 Insulation Resistance ........................................................................................2-1
2.2.2 Dielectric Strength.............................................................................................2-1
2.2.3 Leakage Current................................................................................................1-1
2.3 Electromagnetic Compatibility..................................................................................2-2
Chapter 3 Panel Description...........................................................................................3-1
3.1 Front Panel Description............................................................................................3-1
3.2 Rear Panel Description ............................................................................................3-2
3.3 Display Area Description..........................................................................................3-4
3.4 Display Page Overview............................................................................................3-5
Chapter 4 Operating Instructions...................................................................................4-1
4.1 Output Display Page ................................................................................................4-1
4.1.1 Voltage Setting..................................................................................................4-1
4.1.2 Current Setting ..................................................................................................4-1
4.1.3 Timer Setting.....................................................................................................4-1
4.1.4 Output................................................................................................................4-2
4.1.5 Data Save..........................................................................................................4-2
4.2 List Output Page.......................................................................................................4-2
4.2.1 File Selection.....................................................................................................4-3
4.2.2 File Load............................................................................................................4-3
4.3 General Setup Page.................................................................................................4-4
4.3.1 Overvoltage Protection......................................................................................4-4
4.3.2 Overcurrent Protection ......................................................................................4-4
4.3.3 Startup Delay.....................................................................................................4-4

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.............................................................................................4-6
4.4 Power Failure Setting Page .....................................................................................4-6
4.4.1 Constant Voltage Control ..................................................................................4-6
4.4.2 Constant Current Mode.....................................................................................4-7
4.4.3 Online Mode ......................................................................................................4-7
4.4.4 External Logic....................................................................................................4-8
4.4.5 Power-up Output ...............................................................................................4-8
4.5 List Setting Page......................................................................................................4-8
4.5.1 List Setting Editor ..............................................................................................4-8
4.5.2 List Output Setting...........................................................................................4-10
4.5.3 List Save and Clear.........................................................................................4-10
4.6 System Setup Page ...............................................................................................4-10
4.6.1 System Sound.................................................................................................4-10
4.6.2 System Language ...........................................................................................4-11
4.6.3 System Password............................................................................................4-11
4.6.4 System Date....................................................................................................4-11
4.6.5 System Time....................................................................................................4-11
4.7 Communication Setup Page ..................................................................................4-11
4.7.1 RS232..............................................................................................................4-11
4.7.2 LAN..................................................................................................................4-12
4.7.3 USBTMC .........................................................................................................4-12
4.7.4 USBCDC .........................................................................................................4-13
4.7.5 LXI ...................................................................................................................4-13
4.8 Internal File Page...................................................................................................4-13
4.8.1 File Save..........................................................................................................4-13
4.8.2 File Load..........................................................................................................4-14
4.8.3 File Dump ........................................................................................................4-14
4.9 External File Page..................................................................................................4-14

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........................................................................................................5-1
5.2 Interface Schematic .................................................................................................5-2
5.3 Instrument Series Output.........................................................................................5-4
5.4 Instrument Parallel Output .......................................................................................5-5
5.4.1 Host One Parallel ..............................................................................................5-5
5.4.2 Host Two Parallel ..............................................................................................5-6
5.5 External Control Output............................................................................................5-8
5.5.1 CV External Voltage..........................................................................................5-8
5.5.2 CV External Resistance Rise............................................................................5-8
5.5.3 CV External Resistance Drop............................................................................5-9
5.5.4 CC External Voltage..........................................................................................5-9
5.5.5 CC External Resistance Rise..........................................................................5-10
5.5.6 CC External Resistance Drop .........................................................................5-10
Chapter 6 Interface & Communication...........................................................................6-1
6.1 RS232 ......................................................................................................................6-1
6.1.1 RS232 Interface Description .............................................................................6-1
6.1.2 RS232 Interface Introduction.............................................................................6-1
6.1.3 Communication with Computer.........................................................................6-2
6.2 LAN ..........................................................................................................................6-3
6.2.1 LAN Remote Control System ............................................................................6-3
6.2.2 System Configuration........................................................................................6-4
6.3 USBTMC..................................................................................................................6-4
6.3.1 USBTMC Remote Control System....................................................................6-4
6.3.2 System Configuration........................................................................................6-4
6.4 USBCDC..................................................................................................................6-4
6.4.1 USBCDC Virtual Serial Port ..............................................................................6-4
6.4.2 System Configuration........................................................................................6-5

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..........................................................................................................8-1
Chapter 9 Appendix .........................................................................................................9-1

TH6700 Series Instruction Manual
Chapter 1--1
Chapter 1 Overview
Thank you for purchasing and using our products. Before you use this
instrument, please first confirm the matters in Chapter 8 of the manual "
Set and Warranty", if there is any discrepancy, please contact us as soon
as possible to protect your rights and interests.
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
adapt to the needs of rapid operation at the production site and the needs
of high precision and high stability in the laboratory, while the RS232C
interface, USB interface and LAN port provided by the instrument for the
use of remote operation of the computer provide the conditions.
he special features and advantages of the instrument are as follows:
⚫480X272 pixels, 16-bit color, 4.3-inch color TFT LCD screen for
setting test conditions and displaying measurement results, etc.
⚫Numeric keypad operation
⚫High accuracy and high resolution
⚫Low ripple and low noise
⚫Intelligent fan control to save energy and reduce noise
⚫Software control and detection via computer
⚫Precise fine-tuning of values by knob and cursor
⚫High current, high 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
1.2.2 Environmental Temperature and Humidity
Normal operating temperature: 0℃～40℃, humidity: < 90%RH
Reference operating temperature: 20℃±8℃, humidity: < 80%RH
Transport environment temperature: 0℃～55℃, humidity: 93%RH
1.2.3 Warm-up

TH6700 Series Instruction Manual
Chapter 1--2
Warm-up time after power on: ≥30 minutes

TH6700 Series Instruction Manual
Chapter 2--1
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℃to 40℃and relative humidity not more than 85% RH. The air
should not contain harmful impurities that corrode the measuring
instrument and should be protected from direct sunlight.
The instrument has been carefully designed to reduce noise
interference from the AC power supply input; however, it should still be
used in a low noise environment as much as possible, and if this cannot
be avoided, please install a power supply filter.
This instrument has a cooling fan at the back and cooling ventilation
holes on the left and right to avoid the internal temperature rising and
affecting the accuracy, please make sure the instrument is under good
ventilation.
Do not switch the instrument on and off frequently to avoid loss of
stored data.
2.1 Volume & Weight
Volume(W*H*D): 215mm*130mm*420mm
Weight: max approx. 7.5kg
2.2 Safety Requirements
This instrument is a Class I safety instrument
2.2.1 Insulation Resistance
The insulation resistance between the power terminals and the
housing is not less than 50MΩunder reference operating conditions;
Under hot and humid transportation conditions, the insulation
resistance between the power terminals and the housing is not less than
2MΩ.
2.2.2 Dielectric Strength
Under reference operating conditions, the power terminal and the
housing can withstand the rated voltage of 2.1kV DC voltage for 1 minute
without breakdown and flying arc phenomenon.
2.2.3 Leakage Current

TH6700 Series Instruction Manual
Chapter 2--2
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.

TH6700 Series Instruction Manual
Chapter 3--1
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.
Figure 3-1
The introduction is shown in Table 3-1:
1
Trademark and model
Display trademark, model number and power supply
parameters
2
Power switch
(POWER)
Turn on or turn off the 220V mains power, when in
O position, turn off the power; when in －position,
turn on the power.
3
LCD display screen
480*272 TFT LCD display showing all measurement
parameters, status, measurement results, etc.
4
Soft key
The functions of the six keys in this section are
"soft", i.e., their functions are not fixed and have
different functions in different menus. Conveniently,
their current functions are displayed accordingly in
the "soft key" display area below the LCD.
5
DISP main menu key
Used to access the measurement display page.
1
5-9
1
1
10
12
13-15
19
4
16-18
2
20
3