PowerSource YDC3300 User manual

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All rights reserved.
The information in this document is subject to change without notice.
Publish statement
Thank you for purchasing this series UPS.
This series UPS is an intelligent, three phase in Three phase out, high frequency online
UPS designed by our R&D team who is with years of designing experiences on UPS.
With excellent electrical performance, perfect intelligent monitoring and network
functions, smart appearance, complying with EMC and safety standards, The UPS
meets the world’s advanced level.
Read this manual carefully before installation
This manual provides technical support to the operator of the equipment.

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Contents
1．Safety............................................................................................................................................................2
1.1 Safety notes .......................................................................................................................................2
1.2 Symbols used in this guide............................................................................................................ 2
2．Main Features.............................................................................................................................................3
2.1 Summarization...................................................................................................................................3
2.2 Functions and Features .................................................................................................................. 3
3．Installation...................................................................................................................................................4
3.1 Unpack checking ..............................................................................................................................4
3.2 Cabinet Outlook ................................................................................................................................4
3.4 LCD control panel............................................................................................................................. 5
3.5 Installation notes...............................................................................................................................6
3.6 External Protective Devices............................................................................................................ 7
3.7 Power
Cables .....................................................................................................................................7
3.8 Power cable connect........................................................................................................................ 8
3.9 Battery connection........................................................................................................................... 9
3.10 UPS Multi－Module Installation.................................................................................................10
3.11 Computer access.......................................................................................................................... 11
4．Operation...................................................................................................................................................13
4.1 Operation Modes............................................................................................................................. 13
4.2 Turn on/off UPS............................................................................................................................... 14
4.3 The LCD Display.............................................................................................................................. 19
4.4 Parameters setting ......................................................................................................................... 24
4.5 Display Messages/Troubleshooting........................................................................................... 29
4.6 Options..............................................................................................................................................31
Appendix 1 Specifications.......................................................................................................................... 33
Appendix 2 Problems and Solution.......................................................................................................... 34
Appendix 3 USB communication port definition ..................................................................................36
Appendix 4 RS485 communication port definition...............................................................................37
Appendix 5 BAT_T communication port definition .............................................................................. 38
Appendix 6 Drycontact port communication port definition .............................................................39
Appendix 7 REPO instruction.................................................................................................................... 40

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1．Safety
Important safety instructions – Save these instructions
There exists dangerous voltage and high temperature inside the UPS. During the
installation, operation and maintenance, please abide the local safety instructions and relative
laws, otherwise it will result in personnel injury or equipment damage. Safety instructions in this
manual act as a supplementary for the local safety instructions. Our company will not assume
the liability that caused by disobeying safety instructions.
1.1 Safety notes
1. Even no connection with utility power, 220/230/240VAC voltage may still exist at UPS outlet！
2. For the sake of human being safety, please well earth the UPS before starting it.
3．Don’t open or damage battery, for the liquid spilled from the battery is strongly poisonous and
do harmful to body！
4．Please avoid short circuit between anode and cathode of battery, otherwise, it will cause
spark or fire！
5．Don’t disassemble the UPS cover, or there may be an electric shock！
6．Check if there exists high voltage before touching the battery
7．Working environment and storage way will affect the lifetime and reliability of the UPS. Avoid
the UPS from working under following environment for long time
◆ Area where the humidity and temperature is out of the specified range(temperature 0
to 40℃, relative humidity 5%-95%)
◆ Direct sunlight or location nearby heat
◆ VibrationArea with possibility to get the UPS crashed.
◆ Area with erosive gas, flammable gas, excessive dust, etc
8．Keep ventilations in good conditions otherwise the components inside the UPS will be
over-heated which may affect the life of the UPS.
1.2 Symbols used in this guide
WARNING!
Risk of electric shock
CAUTION!
Read this information to avoid equipment damage

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2.1 Summarization 2．Main Features
This series UPS is a kind of three-in-three-out high frequency online UPS, it provides three
specifications: The 10kVA/15kVAand 20kVA. The products are modularized and adopt the N+X
redundancy. It can flexibly increase the number of the UPS modules according to the load
capacity which is convenient for flexible allocation and gradually investment.
The UPS can solve most of the power supply problems, such as blackout, over-voltage,
under-voltage, voltage sudden drop, oscillating of decreasing extent, high voltage pulse, voltage
fluctuation, surge, inrush current, harmonic distortion (THD), noise interference, frequency
fluctuation, etc..
This UPS can be applied to different applications from computer device, automatic equipment,
communication system to industry equipment.
2.2 Functions and
Features
◆3Phase In/3Phase Out UPS
It is 3Phase In/3Phase Out high-density UPS system, of which input current is kept in balance.
No unbalance problem might occur.
◆Digital Control
This series UPS is controlled by Digital Signal Processor(DSP); ehance, it increases
reliability, performance, self-proteciton, self-diagnostics and so on.
◆Battery Configurable from 16 blocks to 20 blocks
The battery voltage of this series UPS can be configured at 16 blocks, 18 blocks or 20 blocks
according to your convenience.
◆Charging Current is configurable
Via setting tool, the user may set the capacity of the batteries as well as reasonable charging
current as well as maximum charging current. Constant voltage mode, constant current mode or
floating mode can be switched automatically and smoothly.
◆Intelligent Charging Method
The series UPS adopts advanced three-stage charging method—
1st stage: high current constant current charging
to guarantee to charge back to 90%;
2nd-stage: Constant Voltage
In order to vitalize battery and make sure batteries are fully charged
3rd stage: floating mode.
With this 3-stage charging method, it extends the life of the batteries and guarantees fast charging.

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◆LCD Display
With LCD plus LED displays, the user may easily get UPS status and its operational
parameters, such as input/output voltage, frequency & load%, battery % and ambient
temperature, etc..
◆Intelligent Monitoring Function
Via optional SNMP Card, you may remotely control and monitor the UPS.
◆EPO Function
The series UPS may be completely shut off when the EPO is pressed. REPO
function(Remote EPO) is also available in this series UPS.
3.1 Unpack checking 3．Installation
1.Don’t lean the UPS when moving it out from the packaging
2.Check the appearance to see if the UPS is damaged or not during the transportation, do not
switch on the UPS if any damage found. Please contact the dealer right away.
3.Check the accessories according to the packing list and contact the dealer in case of missing
parts.
3.2 Cabinet Outlook
Front View Side View Rear View

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Rear View（terminal block without cover）
(1) LCD panel
(2) RS485 port
(3) Drycontact port
(4) Parallel port 1
(5) USB port
(6) Parallel port 2
(7) Intelligent Solt 2
(SNMP card/ Relay card)
(8) Power Switch
(9) REPO port
(10) I/P Switch (11)Terminal block for
Input, output & battery (12)Intelligent Solt 1 (SNMP card/ Relay card)
(13) Maintenance
switch & its cover
(14) O/P Switch
(15) GND
3.4 LCD control panel
LCD control panel introduction
（1）LED（from top to bottom: “alarm”, “bypass”, “battery”, “inverter”）（2）LCD display（3）
scroll button （4）Off button （5）On button(battery cold start switch)

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3.5 Installation notes
Note: Consider for the convenience of operation and maintenance, the space in
front and back of the cabinet should be left at least 100cm and 80cm respectively when
installing the cabinet .
◆Please place the UPS in a clean, stable environment, avoid the vibration, dust, humidity,
flammable gas and liquid, corrosive. To avoid from high room temperature, a system of room
extractor fans is recommended to be installed. Optional air filters are available if the UPS operates
in a dusty environment.
◆The environment temperature around UPS should keep in a range of 0℃～40℃. If the
environment temperature exceeds 40℃, the rated load capacity should be reduced by 12％ per
5℃. The max temperature can't be higher than 50℃.
◆If the UPS is dismantled under low temperature, it might be in a condensing condition.The
UPS can't be installed unless the internal and external of the equipment is fully dry. Otherwise,
there will be in danger of electric shock.
◆Batteries should be mounted in an environment where the temperature is within the required
specs. Temperature is a major factor in determining battery life and capacity. In a normal
installation, the battery temperature is maintained between 15°C and 25°C. Keep batteries away
from heat sources or main air ventilation area, etc.
WARNING!
Typical battery performance data are quoted for an operating
temperature between 20°C and 25°C. Operating it above this range will
reduce the battery life while operation below this range will reduce the
battery capacity.
◆Should the equipment not be installed immediately it must be stored in a room so as to
protect it against excessive humidity and or heat sources。
CAUTION!
An unused battery must be recharged every 6months Temporarily
connecting the UPS to a suitable AC supply mains and activating it for
the time required for recharging the batteries.
◆The highest altitude that UPS may work normally with full load is 1500 meters. The load
capacity should be reduced when this UPS is installed in place whose altitude is higher than 1500
meters, shown as the following table:
（Load coefficient equals max load in high altitude place divided by nominal power of the
UPS）
Altitude
（m）
1500
2000
2500
3000
3500
4000
4500
5000
Load
coefficient
100%
95%
90%
85%
80%
75%
70%
65%
◆The UPS cooling is depending on fan, so it should be kept in good air ventilation area.
There are many ventilation holes on the front and rear, so they should not be blocked by any exotic
obstacles.

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3.6 External Protective Devices
For safety reasons, it is necessary to install, external circuit breaker at the input A.C. supply and
the battery. This chapter provides guidelines for qualified installers that must have the knowledge of
local wiring practices for the equipment to be installed.
◆External Battery
The UPS and its associated batteries are protected against the effect of over-current
through a DC compatible thermo-magnetic circuit-breaker (or a set of fuses) located close to
the battery.
◆UPS Output
Any external distribution board used for load distribution shall be fitted with protective
devices that may avoid the risk of UPS overloaded.
◆Over-current
Protection device shall be installed at the distribution panel of the incoming main supply. It
may identify the power cables current capacity as well as the overload capacity of the system .
CAUTION !
Select a thermo magnetic circuit-breaker with an IEC 60947-2 trip
curve C (normal) for 125% of the current as listed below.
3.7 Power
Cables
◆The cable design shall comply with the voltages and currents provided in this section, Kindly
follow local wiring practices and take into consideration the environmental conditions (temperature
and physical support media) .
WARNING！
Upon starting.please ensure that you are aware of the location and
operation of the external isolators which are connected to the UPS
input/bypass supply of the mains distribution panel.check to see if
these supplies are electrically isolated.and post and necessary
warning signs to prevent any inadvertent operation .
◆For future expansion purpose, it is economical to install power cable according to the full rating
capacity initially. The diameter of cable is shown bellow：
UPS
cabinet
Cable Dimension
AC Input
(mm
2
)
AC Output
(mm
2
)
DC Input
(mm
2
)
Grounding
(mm
2
)
10KVA
4
4
10
4
15KVA
6
6
16
6
20KVA
8
8
20
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CAUTION!
Protective earth cable: Connect each cabinet to the main ground
system. For Grounding connection, follow the shortest route
possible。
WARNING!
Failure to follow adequate earthing procedures may result in
electromagnetic interference or in hazards involving electric shock
and fire

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3.8 Power cable connect
Once the equipment has been finally positioned and secured, connect the power cables as
described in the following procedure.
Verify the UPS is totally isolated from its external power source and also all power isolators of the
UPS are open. Check to see if they are electrically isolated, and post any necessary warning signs to
prevent their inadvertent operation .
Remove the cover of terminals for wiring easily.
Terminal sequence from left to right: Input phase A(L1), input phase B(L2), input phase
C(L3), input Neutral line, output phase A(L1), output phase B(L2), output phase C(L3), output
Neutral line, battery positive, battery Neutral, battery negative. There are 3 connectors of
GROUND under the terminal block.
Choose appropriate power cable.（Refer to the table above）and pay attention to the
diameter of the connection terminal of the cable that should be greater than or equal to that of
the connection poles;
WARNING!
If the load equipment is not ready to accept power on the
arrival of the commissioning engineer then ensure that the system
output cables are safely isolated at their ends
Connect the safety earth and any necessary bonding earth
cables to the copper earth screw located on the floor of the
equipment below the power connections. All cabinets in the UPS
must be grounded properly.
CAUTION!
The earthing and neutral bonding arrangement must be in
accordance with local and national codes of practice.

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3.9 Battery connection
The UPS adopts positive and negative double battery framework, totally 16pcs(optional 18/20) in
series. A neutral cable is retrieved from the joint between the cathode of the 8th (9th/10 th) and the
anode of the 9th (10th/11 th) of the batteries. Then the neutral cable, the battery Positive and the
battery negative are connected with the UPS respectively. The battery sets between the Battery
anode and the neutral are called positive batteries and that between neutral and cathode are called
negative ones. The user can choose the capacity and the numbers of the batteries according to their
desire.
External battery connections for long-run units.
Note：
The BAT+ of the UPS connect poles is connected to the anode of the positive
battery, the BAT-N is connected to the cathode of the positive battery and the anode
of the negative battery, the BAT- is connected to the cathode of the negative battery。
Factory setting of the long-run unit is battery quantity---16pcs, battery
capacity---12V65AH(charger current 9.75A). When connecting 18/20 batteries, please
re-set desired battery quantity and its capacity after UPS starts at AC mode. Charger
current could be adjusted automatically according to battery capacity selected. All
related settings can be done through LCD panel or monitoring software
CAUTION!
Ensure correct polarity battery string series connection. i.e.
inter-tier and inter block connections are from (+) to (-)terminals.
Don’t mix batteries with different capacity or different brands, or
even mix up new and old batteries, either.
WARNING!
Ensure correct polarity of string end connections to the Battery
Circuit Breaker and from the Battery Circuit Breaker to the UPS
terminals i.e. (+) to (+) / (-) to (-) but disconnect one or more
battery cell links in each tier. Do not reconnect these links and do
not close the battery circuit breaker unless authorized by the
commissioning engineer.

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3.10 UPS Multi－Module Installation
The basic installation procedure of a parallel system comprising of two or more UPS modules is
the same as that of single module system. The following sections introduce the installation
procedures specified to the parallel system.
3.10.1 Cabinet installation
Connect all the UPSes needed to be put into parallel system as below picture.
Make sure each UPS input breaker is in “off” position and there is no any output from each
UPS connected. Battery groups can be connected separately or in parallel, which means the
system itself provides both separate battery and comman battery.
WARNING!
Make sure the N、A（L1）、B（L2）、C（L3）lines are correct, and
grouding is well connected.
3.10.2 Parallel cable installation
Shielded and double insulated control cables available must be interconnected in a ring
configuration between UPS units as shown below. The parallel control board is mounted on
each UPS module units. The ring configuration ensures high reliability of the control.

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3.10.3 Requirement for the parallel system
A group of paralleled modules behave as one large UPS system but with the advantage of
presenting higher reliability. In order to assure that all modules are equally utilized and comply
with relevant wiring rules, please follow the requirements below:
1) All UPS modules must be of the same rating and be connected to the same bypass
source.
2) The outputs of all the UPS modules must be connected to a common output bus.
3) The length and specification of power cables including the bypass input cables and the UPS
output cables should be the same. This facilitates load sharing when operating in bypass
mode.
3.11 Computer access
◆One end of a USB cable connect to the computer, the other end connect to the USB port on
the UPS.
◆Open the software Muser4000, click “system” button.
◆A window of “Software Parameter Setting” comes out as below, COM choose according to the
UPS , baud rate choose 9600, protocol choose “HIP”, then save this setting.

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◆On the main page of Muser4000, click the button of “Append”, then goes to a window of
“Append equipment”.
◆Put the UPS name into “Equipment Name”, and UPS’ ID address into “Equipment address”.
◆Click the button “Append”, then the connection between UPS & computer is accomplished.
CAUTION!
When the UPS worked on inverter. If you want to use PC to set the
output voltage and frequency. Must shut down the inverter first

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4．Operation
4.1 Operation Modes
The UPS is a double-conversion on-line UPS that may operate in the following alternative
modes：
◆Normal mode
The rectifier/charger derives power from the AC Mains and supplies DC power to the inverter
while floating and boosting charge the battery simultaneously. Then, the inverter converts the DC
power to AC and supplies to the load.
◆Battery mode (Stored Energy Mode)
If the AC mains input power fails, the inverter, which obtains power from the battery, supplies the
critical AC load. There is no power interruption to the critical load. The UPS will automatically return to
Normal Mode when AC recovers.
◆Bypass mode
If the inverter is out of order, or if overload occurs, the static transfer switch will be activated to
transfer the load from the inverter supply to bypass supply without interruption to the critical load. In
the event that the inverter output is not synchronized with the bypass AC source, the static switch will
perform a transfer of the load from the inverter to the bypass with power interruption to the critical AC
load. This is to avoid paralleling of unsynchronized AC sources. This interruption is programmable
but typically set to be less than an electrical cycle e.g. less than 15ms (50Hz) or less than 13.33ms
(60Hz).
◆ECO Mode
When the UPS is at AC Mode and the requirement to the load is not critical, the UPS can be set
at ECO mode in order to increase the efficiency of the power supplied. At ECO mode, the UPS
works at Line-interactive mode, so the UPS will transfer to bypass supply. When the AC is out of
set window, the UPS will transfer from bypass to Inverter and supplies power from the battery,
then the LCD shows all related information on the screen.
◆Parallel redundancy mode (system expansion)
To achieve a higher capacity and / or increase reliability, the outputs of up to four UPS modules
can be programmed to operate in parallel and the built-in parallel controller in each UPS ensures
automatic load sharing.
◆Maintenance mode (Manual Bypass)
A manual bypass switch is available to ensure continuity of supply to the critical load when the
UPS is out of order or in repair, and this manual bypass switch bears for equivalent rated load.

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4.2 Turn on/off UPS
4.2.1 Restart procedure
CAUTION!
Make sure grounding is prorerly done!
◆ Set the Battery Breaker to the “ON” position according to the user’s manual.
◆Shut OFF the power breaker.
CAUTION！
Check to see if the load is safely connected with the output of the
UPS. If the load is not ready to receive power from the UPS, make
sure that it is safely isolated from the UPS output terminals
◆ Switch ON UPS input switch
If the Rectifier input is within voltage range, the rectifier will start up in 30 seconds then
the inverter will start up after then.
◆ Switch ON UPS output switch
If the recetifier fails at startup, the bypass LED will light up. When the inverter starts up,
the UPS will transfer from bypass mode to inverter mode, then the bypass LED
extinguishes and the inverter LED lights up.
No matter whetherthe UPS can work normally or not, all the status will be shown on the
LCD display.

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4.2.2 Test procedure
CAUTION!
The UPS is operating normally.It may take 60 seconds to boost up the
system and perform self-test completely.
◆ Switch off the MAINS to simulate utility failure, the rectifier will turn off and the battery
should feed the inverter without interruption. At this time, the LEDs of battery should be turned
on.
◆ Switch on the MAINS to simulate utility recovery, the rectifier will restart automatically
after 20 seconds and the inverter will supply to the load. It is suggested to use Dummy loads
for testing. The UPS can be loaded up to its maximum capacity during load test。
4.2.3 MAINTENANCE BYPASS
To supply the load via Mains, you may simply active the internal mechanicalbypass switch.
CAUTION!
The load is not protected by the UPS when the internal mechanical
bypass system is active and the power is not conditioned.
Switch to mechanical bypass
CAUTION!
If the UPS is running normally and can be controlled through the display,
carry out steps 1 to 5; otherwise, jump to Step 4.
◆ Open the cover of maintenance switch, the UPS turns to bypass mode automatically.
◆ Turn on MAINTANCE breaker;
◆ Open BATTERY breaker;
◆ Switch OFF the MAINS breaker,
◆ Switch OFF OUTPUT breaker;
At this time the bypass source will supply to the load through the MAINTENANCE breaker.
Switch to normal operation (from mechanical bypass)
CAUTION!
Never attempt to switch the UPS back to normal operation until you
have verified that there are no internal UPS faults

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◆ Switch ON the output breaker of the module.
◆ Switch ON the input breaker.
The UPS powers from the static bypass instead of the maintenance bypass, then
the bypass LED will light up.
◆ Switch OFF the maintenance bypass breaker, then the output is supplied by the
static bypass of the UPS.
◆ Put on the maintenance switch cover.
The rectifier will operate normally after 30 seconds. If the inverter works normally,
the system will be transferred from bypass mode to normal mode.
4.2.4 Black(Cold) start procedure
CAUTION!
Follow these procedures when the input AC Utility Failure, but
battery is normal
◆ Turn on the battery switch.
The battery will feed the Auxiliary power board.
◆ Turn on the Output switch.
◆ Switch ON the power breaker (power will feed to auxiliary power board).
◆ Trigger the cold start button as the position 5 of the below drawing.
When battery normal, rectifier starts operation, 30s later, inverter starts and
operates and battery LED on
CAUTION!
Please press the close start button after 30 seconds until closing
the battery switch.

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4.2.5 Shut down procedure
CAUTION!
This procedure should be followed to completely shut down the
UPS and the LOAD. After all power switches, isolators and circuit
breakers are opened, there will be no output.
◆ Open the BATTERY breaker；
◆ Open the UPS door to easily access to the main power switch；
◆ Switch OFF the input breaker.
◆ Open the OUTPUT power switch. The UPS shuts down；
◆ To completely isolate the UPS from AC Mains, all input switches of Utility shall
be completely off, which includes the ones for rectifier and bypass.
◆ The primary input distribution panel, which is often located far away from the
UPS area, so a label should be posted to advise service personnel that the
UPS circuit is under maintenance。
WARNING!
Wait for about 5 minutes for the internal D.C. bus bar
capacitors to be completely discharged.
4.2.6 Parallel setting
◆Connect the UPS with computer. Power on the U PS.
◆ Open Muser4000 software, after connecting with the UPS successfully, click
“System”->“User Set”

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◆Click ‘Set” at “User Set” window;
◆At the window of “Data Set”, click “Work Mode”,, choose “Parallel” for the value, then click
“Set” as shown in below picture. If the UPS sounds a “beep”, that means the setting is correct.
◆At the window of “Data Set”, click “Ups ID”, write a value for the parallel UPS ID at the right
side, such as “1”, then click “Set” as shown in below picture. If the UPS sounds a “beep”, that

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means the setting is correct.
CAUTION！
After changing the parallel system ID, the connection between
Muser4000 and equipment might be interrupted. If it occurs, please
re-connect in accordance with the instruction described before.
CAUTION！
Parallel cable cannot be connected when setting the parallel parameters.
◆After setting the UPSes needed to be paralleled, power off all the UPSes. Connect all the
UPSes according to “parallel cable installation”, and then power on the UPSes.
4.3 The LCD Display
Overview of the operating panel of the UPS
(1)LED indicator (2)LCD display (3)Scroll button:enter to next item (4)Off button (5)On button