FlexPro EOL Series User manual

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POWER WIND GENERATOR
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General information and installation guide

EOL/20000
Series EOL :
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EOL/300 EOL/500 EOL/1000 EOL/2000 EOL/5000
EOL/3000 EOL/10000
Series EOL

If you choose segment tower to erect tower in flat area, please refer to the following steps.
Step1: To choose installing location
The wind turbine should be erected high and far away from obstacles as possible in order to
get relatively high wind speed. Meanwhile soil quality of installation location should be taken
into consideration. Loose sands, uneven or easily influenced by weather condition areas
should be excluded from installing the wind turbine. When selecting the locations, it’s
necessary to consider the distance between generator and pile. The shorter the distance is, the
less cable would be used. As a result, less energy waste would be produced during the
transmission. While under the circumstances of longer distance, it’s better to use much
thicker standard cable for the transmission.
Step 2: Layout of tower, base and anchor showed in following chart
Following remarks should be paid attention to when layout base and anchor:
1. The line between two anchors should be parallel the line between two holes on the
grounding feet.
2. The height of anchor and the tower base should be in consistent. Any action against above
rules will cause the bad results, such as too tight or too loose fastening pull, while over tight
pull will incurvate the tower or even break it down.
Step3: Concrete the Foundation of Base and Anchor as well as Install Tower Base
1. Dig the holes according to the last step layout. 0.8M×0.8M×1.6M for central base and
0.8x0.8x1.0M for four anchors
2. C25 concrete should be used. Four anchor bolts will be installed according to the holes on
the base. Fixing the base with bolts on the cement done before
3. Four annular anchors need to be deposited 60°to 80°along the base direction and check the
distance between the four hooks of the anchors and the center of the base (6M) and four
anchors should be horizontal.
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Installation Procedure

Step4: Assembly of tower and wind turbine
1. First, assemble the tower and place it on sawbuck
2. Draw out pivoted bolts under tower base and insert the main tower into base
3. Insert the pivoted bolts one by one into base hole of main tower and screw nuts to degree
of neither too loose nor too tight
4. Fetch out the cable of wind turbine from tail edge after ripping the cable into the pole.
Connect cable with conducting wire of generator and bind up the joint by insulated tape in
case of short circuit.
5. Fix flange of wind turbine and pole’s flange by using bolts.
6. Assembly of blades and tail rod (consulting the following chart)
Step5: Erecting the tower
1. Put ends of all four tight wires into hole of grip ring on the front part of pole and pin it
tightly with the tight wire pin. Except the tight wire corresponding to the farthest anchor, the
other end of all other thigh wire should pin to the anchor but not pin tightly, which sets stage
for adapting pull after erecting the turbine.
2. Connect the last tight wire to an at least 16m rope or cable, one end of which is linked with
windlass or tractor.
3. Make the last tight wire and other tight wires through one side of a 2*4or 2*5 ladder,
which serves as an assistant suspender.
4. Drive the tractor slowly and the tower will stand up along the moving wire. Stop at each
rising 15°and examine the tight wire’s tensile force on both sides. Any over tight or loose
wire should be regulated by putting down the tower slowly and adjusting the length of tight
wire.
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Installation Procedure

5. Go on pulling the wire until the tower stands upright. Put the rest wires through its anchor
and fix it up.
6. Inspect and adjust the tension on each fixed tight wire. Over tight force may bend the
tower while over loose force may cause the tower unstable and shakable. The perfect force is
neither too loose nor too tight and can be adjusted through circum rotating the bolt. The
appreciably flabby strain would be much safer than the over tight force.
2. Maintenance
Wind turbine may be operated under extremely harsh environment, or meet various
complicated weather. Therefore, fix-date examination and maintenance are necessary in order
to keep the system operate rightly.
Do the following check every three months;
1. Check the tight wire is too loose or too tight, and adjust them, in particular in initial stage
of installation and post-gale.
2. Check whether or not the wire is damaged or loose. The joints are loose and rusted or not
in order to secure electrical safety.
3. Before storm, it is better to lay down the tower for escaping from unpredictable loss.
Inverter
The inverter is designed for the conversion of DC voltage from the wind turbine (permanent
magnet generator) into AC voltage for feeding into the public mains supply. The inverter is
endowed with the function of over/under voltage protection.
1．Explanation of Symbols
To reduce the risk of electrical shock, and to ensure the safe installation and operation of the
inverter, the following safety symbols are used to indicate dangerous conditions and
important safety instructions.
WARNING: This indicates a fact or feature very important for
the safety of the user and/or which can cause serious hardware
damage if not applied appropriately.
Caution when performing this task.
NOTE:
This indicates a feature that is important either for
optimal and efficient use or optimal system operation.
Important Safety Instructions
Please read the instructions of this manual carefully before installing the inverter.
Always disconnect the inverter from the grid first.
It is unnecessary and not advised to open any other parts of the inverter but the
connection terminals by the qualified personnel.
All electrical installations shall be done in accordance with the local and national
electrical codes.
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Installation Procedure

PC software for remote monitoring and system trouble shooting
 Connection of the inverter to the electric utility grid must be done after receiving prior
approval from the utility company and performed only by qualified personnel.
 Completely disconnect the output with wind generator before wiring them or use
other methods to ensure safety from shock hazard. Because when there is wind, the
wind turbine may rotate, and the wind generator may generate power.
2．Characteristics:
 Full Featured Inverter Display and Communications:
 Liquid Crystal Display (LCD) provides instantaneous power, total power, information
of system, fault messages, and the control of the system.
 The key allows the press of a finger to turn backlight on and display screen cycling.
 Bright LED indicators provide system status at a glance.
 Integrated RS485 communication ports.

3. Wiring diagram
This part (three Ws above) is three electric resistances
1: The RS485 communication terminal (A,B)
2: The three wires drawn out from wind turbine are connected to the Wind Input;
3: The Dump Load control terminal (12V+,12V-). Three resistances (eg, bulbs) can be
connected in this part to achieve the dump load;
4: Connecting to the grid.
Connecting to the Grid
When the DC input voltage from the wind turbine reaches 70 Volts, the inverter will wait 10
seconds, and then start to connect to the grid. If the voltage remains above 70Vdc, the
inverter will synchronize with the utility and begin exporting power. When the DC voltage
reaches 120Vdc, inverter will output 1500 Watts AC to the utility. And the inverter will
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Installation Procedure

remain output 1500 Watts AC as specified by the <Pmax> parameter setting. If the voltage
continues to increase, inverter will continue to output 1500 Watts AC. If the wind slows
down such that the DC voltage falls below 70 Volts, the inverter will continue to operate at
zero power output for 180 seconds. If the DC voltage increases above 300 Volts, the stop
timer will reset and inverter will process power according to the power curve. If the DC
voltage remains below 70 Volts for 180 seconds, the inverter will stop processing power and
stand by. If the DC voltage is over 70V, the inverter will output immediately.
5. Disconnecting from the Grid
If wind power is insufficient to generate power for the grid (when internal inverter power
consumption is more or less equal to the available wind power), the inverter disconnects from
the grid and goes into stand-by mode. The inverter continues to monitor the wind power
available. If the wind power becomes available again within 5 minutes, a new grid
connection procedure is initiated. If no wind power is available after 5 minutes, the inverter
goes into stand-by mode to save power.
Conditions that cause the inverter to be disconnected from the grid:
 Grid voltage
The grid voltage may be within a range of –15% and +10% of the nominal grid voltage. Once
the grid voltage exceeds third range, the inverter will be disconnected from the grid within
0.2s.
 Grid frequency
The grid frequency may be within a range of 50±1Hz of the nominal grid frequency. Once
the grid frequency exceeds third range the inverter is disconnected from the grid with 0.2s.
6. Monitoring and Diagnosis
The inverter normally operates automatically without users’ interaction and without any
maintenance. The inverter automatically turns itself off when grid feeding is not possible.
The inverter automatically starts its grid feeding once the wind power is high enough. But
when the wind power is too strong, the inverter goes into dumping load mode. The inverter
goes to stand-by mode if the wind power and the resulting electric input energy is too low
and is therefore always ready for operation. Each time the inverter starts up it runs a number
of self tests and safety procedures.
But sometimes our users want to monitor the wind power system and get some useful dates
of the wind plant, we have provided the following ways to help our users to manage the wind
plant.
7. The processing of start-up
a. When the dc input voltage over 70 V, the RUN LED (green) is blinking: the system in the
state of grid inspect. The inverter judges the working condition required and processes the
grid voltage frequency tracking. This process needs about 200 seconds.
b. The RUN LED (green) keeps on: the inverter starts converter the solar energy to the AC
power offer to the grid.
8. The wrong states of the inverter
 DC input wrong
The Fault LED (red) blinks one time and off three second and blinks again
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Installation Procedure
(optional)

disconnect DC input from the inverter!Solution:
The main reason: the dc input voltage is over the nominal dc voltage.
 The grid wrong
The Fault LED (red) blinks two times and off three second and blinks again. The possibility
reason:
 grid under-voltage
 grid over-voltage
 The frequency of the grid voltage is too low
 The frequency of the grid voltage is too high
 The frequency changing of the grid voltage is too faster
 The grid is out of power or AC breaker is disconnected
9. Inverter fault
The Fault LED (red) blinks three times and off three seconds and blink again.
The possibility reason: over-current, over-voltage, under-voltage of the inverter and so on.
The following are the fault information of the inverter:
 If the inverter has no fault then the this screen may display “OK”;
 If the input voltage of inverter is too high then this screen may display “DC Over
Voltage”;
 If the input voltage of inverter is too low then this screen may display “Low-Wind”;
 If the output voltage of inverter is too high this screen may display “AC Over
Voltage”;
 If the output voltage of inverter is too low then this screen may display “AC Under
Voltage”;
 If the output current of inverter is too high then this screen may display “AC Over
Current”;
 If the output frequency of inverter is too high compared with 50HZ then this screen
may display “AC Over Freq.”;
 If the output frequency of inverter is too low compared with 50HZ then this screen
may display “AC Under Freq.”;
 If there is no grid when the inverter is running in the system then this screen may
display “Islanding”;
 If the temperature of inverter is too high or too low then this screen may display
“Over Temp.”;
 If there is a fault of the DSP then the this screen may display “DSP Fault”;
 If there is a fault of the EARTH then this screen may display “Earth Fault”;
 If there is a fault of the IPM module then this screen may display “Module Fault”;
 If there is a fault of the communication of system then this screen may display “COM.
Fault”.
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Installation Procedure

by mounting a shading screen in front of the device.
Direct Sunlight on the inverter must be avoided. It should be protected from sunlight
e ambient temperature should remain within the specified temperature range
(-25°C to 60°C).
A photo of the
immediately notify the shipping company.
10. Installation and Mounting
This document gives short installation instructions for electricians. It helps to swiftly and
correctly install and commission a SPS inverter.
 Checking for Shipping Damage
The inverter is thoroughly checked and tested rigorously before they are shipped. Even
though they are delivered in a rugged, heavy cardboard box, the inverters can be damaged in
shipping which typically is the shipping company’s fault. So you should check the inverter
before installation.
Please inspect the inverter thoroughly after it is delivered. If any damage is seen please
damage may be helpful.
Do not accept unit if visibly damaged or note visible damage when signing shipping
company receipt. Report the damage immediately to shipping company. Do not remove the
unit from packaging.
b. Basic Installation requirements
It is a complicated electronic device and is therefore sensitive to humidity within the case.
There are several requirements that should be kept in mind when installing an inverter.
A list of these requirements is shown below:
It is advised not to install the inverter in living quarters, since the inverter may
produce some operating noise (< 32 dBA).
 Avoid installing the inverter in a location subject to vibrations.
 The LED and display should always be legible (there is an optimum angle at which
the LED and display can be read).
 Th

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Installation Procedure

This device contains direct currents of up to 450Vand the network alternating voltage of 230V
It is important to have air freely circulating around the inverter; therefore keep an 
area within 30 centimeters of the inverter free from obstacles. Please make sure there
is a sufficient space for heat dissipation! In a normal environment the following
clearance should be provided for the inverter.
 The inverter should be mounted in a well-ventilated area.
 Avoid mounting the inverter in a dusty area
11.Mechnical Mounting
a. Safety Mounting Instructions
As with any electrical system, touching live components can be hazardous to life and limb.
Caution:
Before opening the device, it is absolutely essential
to disconnect the inverter from direct current and alternating
current. Even after disconnection, hazardous voltage is still
present on the device for a longer period of time. This is due
to a residual charge in the internal capacitors
WARNING: Only a qualified electrician may work on the
open inverter. This work is only permissible if the AC and DC
power supply are safely disconnected from the inverter. The
inverter must be disconnected from the grid and secured
against accident reconnection.
WARNING: When this has been done, always waiting for
approx.5 minutes so that the capacitors in the inverter can be
discharged. Only then may the lid be opened and the safe
isolation from power supply checked.
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Installation Procedure