High Frequency Switch Mode Power Supply
(Fan Cooling)
Technical Instruction
Version V1.3
Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
All rights reserved. The Instruction is not allowed to copy.
The technical specification is subject to change without prior notice.
Add：#12 Tianshan Sci-Tech Park, #319 Xiangjiang Rd, Shijiazhuang, China
ZIP Code：050035
Fax：0311-86080409
Service hotline：0311-86032617
Web：www.sjzthdz.com
TonHe
Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
Catalogue
CHAPTER 1 OVERVIEW ...................................................................................................................... - 1 §1.1
PREFACE................................................................................................................................. - 1 -
§1.2
SYSTEM PERFORMANCE ..................................................................................................... - 1 -
§1.3
MAIN FEATURES .................................................................................................................... - 1 -
§1.4
MAIN FUNCTIONS .................................................................................................................. - 1 -
§1.5
SPECIFICATION ...................................................................................................................... - 4 -
§1.6
MODEL NAME ......................................................................................................................... - 5 -
CHAPTER 2 MODULE CONFIGURAITON .................................................................................... - 5 §2.1
WORKING PRINCIPLE ............................................................................................................. - 5 -
§2.2
SIZE AND DIMENSION ............................................................................................................. - 6 -
§2.3
OPERATING INSTRUCTION .................................................................................................... - 9 -
CHAPTER 3 SERVICE ENVIRONMENT ....................................................................................... - 12 -
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
Chapter 1 Overview
§1.1
Preface
“TH” series intelligent high-frequency switch power supply modules are specially developed to meet
the demands of modern DC system. The charger rectifiers are designed with world leading patent
technology “resonant voltage type soft switching power supply technology”. They feature high
efficiency and stability, intelligent control, small size and light weight.
The products listed in this manual are the fifth generation, which are of higher working frequency,
smaller size and lighter weight compared with past products.
Rated output voltage 220V and 110V
RS-485 interface, easy to work with automation system.
Applicable for electric and relevant industries.
§1.2 System performance
Modular design, N+1 hot backup, smooth expansion;
Intelligent design, implement automatically via serial communication the following function: on/off,
charging mode switch over, output voltage setting, output current setting, SYNC switch over and etc.
With standard RS-485 interface, easy to work with automation system, “4-remotes” function.
Hot swappable
§1.3 Main Features
High efficiency, over 93%
High power converter frequency, small size and light weight.
Isolation automatic current sharing technology, unevenness ＜±3%。
Built in output isolation diode
LED digit display, display switchover button, V-adjust button, DIP on front panel, easy operation
§1.4 Main Functions
1) Protection function

Output voltage protection：To prevent the disastrous accident caused by output overvoltage, there
is overvoltage protection circuit in the module. Once the output voltage is higher than the threshold,
the module locks up automatically and fault indication light is on, the faulty module quits work
automatically and doesn’t affect the normal operation of the entire system. The overvoltage
protection threshold is set in the factory, 320V±15V for 220V series, 160V±5V for 110V series.

Output current limit：The output current cannot increase infinitely. The maximum output current of
is limited to 110% of the rated output current. If over load, the output voltage will drop to protect

Short circuit protection：When short circuit, the output voltage drops to 0 immediately. Limit the
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
short circuit current under 15% of rated output current. The module will not be damaged under
short circuit state for a time, and resumes to work automatically after trouble shooting.
V
Load
Short circuit
I
Fig.1 output characteristics
 Parallel protection：There is parallel protection circuit in each module to ensure that when the fault
module quits the system, the normal work of other modules and the system won’t be affected.
··
·
Module 1
Module 2
Protection circuit
Protection circuit
Module N
Protection circuit
+
Fig.2 Parallel output diagram

Over temperature protection：Over-temperature protection is mainly for protecting large power
components. In particular case, when the temperature of the radiator is over the threshold 85℃, the
charger module shuts down automatically to protect itself and resume to work after the temperature
comes lower 75℃.

Over current protection：to protect the high power converting components and no output if over load.
Self recoverable.
2) Synchrotrans function：the modules in same working group are of synchrotrons function to ensure
consistency of system running. They are: float/boost charging switchover, boost charging voltage
adjust, float charging voltage adjust, charging current setting.
3) Measurement and display function：measure the output voltage, output current and working state
and display on the LED screen. The user can easily get the running info of the system.
4) Fault alarm function：Display the fault code on the LED screen if any fault and the user can easily
locate the fault and remove it.
5) Setting function

Output voltage set
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Technical Instruction V1.3
Set the output voltage by use of the buttons on the front panel. Set right output voltage according to bus,
charging state, float charging voltage, boost charging voltage and etc.

Current limit set
10% - 110% settable

Four remotes function

Remote control：remote switch on/off, float/boost charging switchover

Remote regulation：regulate the float/boost charging voltage, current threshold and
over voltage alarm threshold；

Remote metering：measure output voltage and current;

Remote signaling：read the working state of the module
6) Communication function
Communicate with host controller and other modules parallel connected via RS485.
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
§1.5 Specification
Model
TH230D10NZ
TH230D07NZ
TH230D05NZ
TH110D10NZ
TH110D20NZ
Output current（A）
10
7
5
10
20
Power（KW）
3
2.1
1.5
1.5
3
Weight (kg)
5
5
5
5
5
Cooling type
Fan cooling
Fan cooling
Fan cooling
Fan cooling
Fan cooling
≤30℃
≤30℃
≤30℃
≤30℃
≤30℃
Item
Radiator T-rise
Input
Min
323
323
323
323
323
voltage
Typical
380
380
380
380
380
（VAC）
Max
437
437
437
437
437
Output
Min
176
176
176
88
88
voltage
Typical
242
242
242
121
121
（VDC）
Max
300
300
300
150
150
voltage regulation
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
Current regulation
±1%
±1%
±1%
±1%
±1%
Efficiency
≥93%
≥93%
≥93%
≥93%
≥92%
Storage
Min
-40
-40
-40
-40
-40
temperature
Typical
25
25
25
25
25
（℃）
Max
60
60
60
60
60
Working
Min
-10
-10
-10
-10
-10
temperatur
Typical
25
25
25
25
25
e （℃）
Max
40
40
40
40
40
±3%
±3%
±3%
±3%
±3%
3~8
3~8
3~8
3~8
3~8
≤0.5%
≤0.5%
≤0.5%
≤0.5%
≤0.5%
320±15VDC
320±15VDC
320±15VDC
160±8VDC
160±8VDC
Unbalance rate of load
sharing
Soft start time
Ripple
Over voltage
protection
The output current does not increase infinitely. When over load, there will be limited
Automatic current limit
constant current output. The maximum output current of is limited to 110% of the rated
output current.
Load grade
Continuous working with Grade I(100%) rating output current
Short circuit protection
When short circuit, the module will protect itself from broken. Self recoverable
Note：the influence of built in diode is neglected when mention voltage regulation
Table 1
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
§1.6 Model name
TH
NZ
Fan cooling, intelligent module
Rated output current：20A，10A，7A，5A
Module category： D electric power
DC output voltage grade：220V，110V
Chapter Module configuration
§2.1 Working principle
AC input
Input
protection
DC output
Bridge
rectifier
Passive
PFC
Overheat
protection
RS485
Smooth
filter
DC/DC
convert
Resonance voltage
type double loop
control circuit
Microprocessor
Digit display
button&code
switch
Fig. 3 Functional block diagram
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Smooth
filter
Feedback
sampling
Over
voltage/current
short circuit
protection
Output
protection
Current sharing
control
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
§2.2 Size and dimension
The fixing bolt on front panel is M4
The overview of module 3KW and lower power are same. The size is as follows：
Fig.4：Front view
Fig 5：Rear View
Fig. 6：side view
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Fig. 7（1）
：Bore hole drawing
Fig. 7（2）
：3-room rack
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Technical Instruction V1.3
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
Fig 7（3）
：4-room rack
The connector （JMD18T） definition ：
Fig. 8
Terminal
PIN
SPEC
DEFINE
FUNCTION
1
Standard
12#
A
Input 380VAC
2
Standard
12#
B
Input 380VAC
3
Standard
12#
C
Input 380VAC
7
Standard
20#
485B
COM B
8
Standard
20#
485A
COM A
9
Standard
20#
JL-
Current share
grounding
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Shijiazhuang Tonhe Electronics Technologies Co.,Ltd.
Technical Instruction V1.3
10
Standard
20#
JL+
Current share bus
15
Standard
12#
DC+
DC output +
16
Standard
12#
DC-
DC output -
18
Standard
12#
G
Input grounding
Table 2
NOTE：
① Undefined port is empty
② Keep a good ventilation around the charger module.
③ Connect according to the indication “current share +”, “current share -” to achieve the automatic
current share.
② Wire terminal A and terminal B separately and connect with the host monitor (such as THJK002G-3
monitor) through terminal A & terminal B of RS485 A, which achieve communication between the
module and monitor
§2.3 Operation instruction
图 9 充电模块前面板示意图
Digit display screen
Show the information including voltage, current, warning, OFF. Change over voltage/current display
by the option button. In case alarm, check the fault code by option button. When power off, the OFF
code displayed by pushing the option button.
Indicating light
There are 3 indicating lights and the functions are shown as table 3
Table 3 indication light function
Indicator
Power indicator
Normal
Abnormal
ON
OFF
NO input voltage, the axuilary power inside the
module does not work
overheat（red）
OFF
ON
Overheat inside the module
fault（red）
OFF
ON
Fault inside the module
（green）
Reasons
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Display option button
For changing the display on LED screen. When the LED screen is output voltage, the user can read
output current by pushing this option button and then come back output voltage by pushing again.
Manual voltage regulating button
The two built-in buttons on front panel are used for regulating the output voltage in manual mode. The
voltage reduces 1V when push left button“▼”. And the output voltage will rise 0.5V when push the right
button“▲”.
Remark: this button works only in manual mode.
Code switch
For choosing control mode and communication address. The definition is shown as fig.9
Fig. 9
1．Control mode option code switch
The leftmost code button is control mode option code, used for choosing automatic control mode or
manual control mode. It is automatic control mode if this code is on the top and manual control mode if at
the bottom. Shown as fig. 9
In automatic mode, the output voltages, current limit value, ON/OFF of the module are controlled by the
host monitor and manual operation does not work. If the module is wired in switching power bus to
charge the battery, normally select the automatic mode.
In manual mode, the output voltage is regulated by the voltage regulating button mentioned above. The
output voltage, current limits value and ON/OFF of the module are not controlled by host monitor. But
those information could be transferred to the host monitor. If the module is wired in control bus and a
stable voltage output required, the module should be set in manual mode. The user can set the output
voltage manually and the current limit threshold is the 110% rated current.
In parallel working, only one module could be set in manual mode and others should be set in automatic
model.
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PS：The equalized/float charge voltage must be set same in each module when
several modules work in parallel to prevent from damage the battery once host
monitor fault .
2．Grouping DIP switch
The second code button from left is grouping DIP switch (broadcast address identification code ) and
used for identifying packets groups (Broadcasting Data packet.)
if switch to the top side, the charger is in packet group 1, the broadcast address is 253, If switch to the
bottom, the charger is in packet group 2, the broadcast address is 254; the address is 255 if send data to
both groups.
3．Set DIP
The right 4 communication addresses set DIP and the broadcast address identification code are
composed of communication address set DIP switch, which is used for setting the communication
address of the module. The address is binary number, and means 0 if the DIP is on the top and means 1
if at the bottom. The rightmost code among is the lowest digit and the leftmost code is the highest digit.
For example: the set DIP is 5 digits, so the set range of communication address is 0~31. That is to say,
maximally 32 modules could be connected to one serial port of the host controller. The address is the
only sign the controller could identify each module and the address of each module must be different in
one system. For one module, the communication address setting must be same as the address setting
of the host controller module. Otherwise abnormal communication occurs. The address in controller is
decimal digit and the relation table is as follows Table 4
Table 4 Relation between binary and decimal digit
二进 0000 0000 0001 0001 0010 0010 0011 0011 0100 0100 0101 0101 0110 0110 0111 0111
1
0
1
0
1
0
1
0
1
0
0
0
1
0
1
制 0
十进
制
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
二进 1000 1000 1001 1001 1010 1010 1011 1011 1100 1100 1101 1101 1110 1110 1111 1111
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
制
十进
制
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
For example：the DIP set above highlighted in black is binary digit 10101, corresponding decimal
address is 21. This charger is in Group 2.
Voltage/current inquiry
Under voltage/current inquiry mode, switch over the display content between voltage and current on the
LED screen by use of the switchover button V/A.
If any fault, the fault information is display on the LED screen in fault code. Get the voltage display by
press the switchover button. The fault code table 5 is as follows.
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Technical Instruction V1.3
Table 5 Fault code and definition
Code
E01
E02
E04
E05
Identification
Under
voltage
Over
voltage
Over voltage/current
protection
Over
temperature
E06
E20
Setting over range
Input fault
Communication function
Communicate with superior end via RS485. Transfer the output voltage, current, protection and alarm
information to superior end and execute the upper controller’s commands.
Table 6 Communication function
No.
Item
Spec
1
Remote
signaling
Transfer the faults info such as AC input, DC output
over/under voltage, over temperature to monitor unit
2
Remote
measuring
3
Remote
control
4
Remote
regulating
Measure charging module output voltage, current and
display in the screen. Same time transfer to superior
monitor unit
Control the switch on/off of the charging module and
equalizing/float charge convert according the command
from monitor
Regulate the output voltage according to commands
Regulate output current limit threshold within 10%～
100% according to commands.
Note
～
～
With Manual control
function, which
disable the monitor
function
Note: When the charging module is in automatic mode, the output voltage will be adjusted to
234V automatically if there is not any communication in 4 minutes. Current limiting threshold will
be open all to 110% of rated current value.
Chapter 3 Working environment
3.1
Altitude  2000m;
3.2
Storage temperature: -40℃~+60℃; working temperature: －10C ~ +40C;
3.3
Relative humidity:  90％（operating temperature 25C）;
3.4
No conductive and explosive dust, no caustic gas;
3.5
Indoor use only
3.6
If your circumstance and conditions cannot meet the request above, please mention it when
placing the order so that we can adjust to make sure the products work normally.
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