TDK-Lambda EZA11K Series Installation guide

TENTAT
19-11-01
TDK-Lambda
EZA11K series
Quick Manual /Practical(II)
EZA11K-320240
Quick Manual
Practical Volume II
BEFORE USING THE POWER SUPPLY UNIT (Common)
Be sure to read this instruction manual thoroughly before using this product. Pay attention to all cautions and
warnings before using this product. Incorrect usage could lead to an electrical shock, damage to the unit or a fire
hazard.
DANGER!
Never use this product in locations where flammable gas or ignitable substances are present.
INSTALLATION WARNING
• When installing, ensure that work is done in accordance with the instruction manual. When installation is improper, there is risk
of electric shock and fire.
• Installation shall be done by Service personnel with necessary and appropriate technical training and experience. There is a
risk of electric shock and fire.
• Do not cover the product with cloth or paper etc. Do not place anything flammable around. This might cause damage, electric
shock or fire..
WARNING on USE
• Do not touch this product or its internal components while circuit in operation, or shortly after shutdown. You may receive a
burn.
• While this product is operating, keep your hands and face away from it as you may be injured by an unexpected situation.
• There are cases where high voltage charge remains inside the product. Therefore, do not touch even if they are not in
operation as you might get injured due to high voltage and high temperature. You might also get electric shock or burn.
• Do not make unauthorized changes to this product nor remove the cover as you might get an electric shock or might damage
the product. We will not be held responsible after the product has been modified, changed or dis-assembled.
• Do not use this product under unusual condition such as emission of smoke or abnormal smell and sound etc. Please stop
using it immediately and shut off the product. It might lead to fire and electric shock. In such cases, please contact us. Do not
attempt repair by you, as it is dangerous for the user.
• Do not operate and store these products in environments where condensation occurs due to moisture and humidity. It might
lead fire and electric shock.
• Do not drop or apply shock to this product. It might cause failure. Do not operate these products mechanical stress is applied.
CAUTION on MOUNTING
• Confirm connections to input/output terminals are correct as indicated in the instruction manual before switching on.
• Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within specifications,
otherwise the product will be damaged, or cause electric shock or fire.
• Do not use this product in special environment with strong electromagnetic field, corrosive gas or conductive substances and
direct sunlight, or places where product is exposed to water or rain.
• Mount this product properly in accordance with the instruction manual, mounting direction and shall be properly be ventilated.
• Please shut down the input when connecting input and output of the product.
• The power supply may cause damage when it intake conductive material, dust and liquid. When use this product, please be
careful to prevent entry of those materials to inside the product by using filter etc.
• Do not use this product in environments where causes the salt damage.
CAUTION on USE
• Product individual notes are shown in the instruction manual. If there is any difference with common notes individual notes
shall have priority.
• Before using this product, be sure to read the catalog and instruction manual. There is risk of electric shock or damage to the
product or fire due to improper use.
• Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within specifications,
otherwise the product will be damaged, or cause electric shock or fire.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
• If the built-in fuse is blown, do not use the product even after replacing the fuse as there is risk of abnormality inside. Be sure
to request repair to our company.
• For products without built-in protection circuit (element, fuse, etc.), insert fuse at the input to prevent smoke, fire during
abnormal operation. As for products with built-in protection circuit, depending on usage conditions, built-in protection circuit
might not work. It is recommended to provide separate proper protection circuit.
• For externally mounted fuse do not use other fuses aside from our specified and recommended fuse.
• This product was made for general purpose electronic equipment for standard industrial use and is not designed for
applications requiring high safety (such as extremely high reliability and safety requirements. Even though high reliability and
safety are not required, this product should not be used directly for applications that have serious risk for life and physical safety.
Take sufficient consideration in fail-safe design (such as providing protective circuit or protective device inside the system,
providing redundant circuit to ensure no instability when single device failure occurs).
• When used in environments with strong electromagnetic field, there is possibility of product damage due to malfunction.
• When used in environment with corrosive gas (hydrogen sulfide, sulfur dioxide, etc.) , there is possibility that they might
penetrate the product and lead to failure.
• When used in environments where there is conductive foreign matter or dust, there is possibility of product failure or
malfunction.
• Provide countermeasure for prevention of lightning surge voltage as there is risk of damage due to abnormal voltage.
• Connect together the frame ground terminal of the product and the ground terminal of the equipment for safety and noise
reduction. If these grounds are not connected together, there is risk of electric shock.
• Parts with lifetime specifications (built-in fan, electrolytic capacitor) are required to be replaced periodically. Set the overhaul
period depending on the environment of usage and perform maintenance. Also, note that there are cases when EOL products
cannot be overhauled.
• Take care not to apply external abnormal voltage to the output. Especially, applying reverse voltage or overvoltage more than
the rated voltage to the output might cause failure, electric shock or fire.
• Do not use in special environment such as places directly exposed to sunlight, dew condensation, moisture, rain, strong
electro-magnetic field, or corrosive gas (hydrogen sulfide, sulfur dioxide).
• This product has a built-in fan for air-cooling. Do not block the air intake and exhaust.
• The output of this product is considered to be a hazardous energy level (The voltage is 2V or more and the power is 240VA or
more). It must not be made accessible to users. Protection must be provided for Service Engineers against indirect contact with
the output terminals and/or to prevent tools being dropped across them. While working on this product, the DC input power must
be switched off and the input and output voltage should be zero.
• When short the output during operation, there is damage inside the converter.
• When change abrupt in Input voltage during operation, there is a Risk of damage inside the converter.
• When use the Electric storage device, Please refer to the manual of electric storage device and use the appropriate protection
device.
Note
• There is a possibility machining traces remain on sheet metal of product.
• Consider storage of the product at normal temperature and humidity avoiding direct exposure to sunlight at environment with
minimal temperature and humidity changes. Storage of product at high temperature, high humidity and environments with
severe changes in temperature and humidity might cause deterioration, and occurrence of condensation in the product.
• When disposing product, follow disposal laws of each municipality.
• Published EMI (CE, RE) or immunity is the result when measured in our standard measurement conditions and might not
satisfy specification when mounted and wired inside end-user equipment. Use the product after sufficiently evaluating at
actual end-user equipment.
• Catalogue, contents of the instruction manual may be changed without a prior notice. Refer to latest catalogue or instruction
manual.
• Reproduction or reprinting the instruction manual or its portion is forbidden without our permission.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
Over view of Quick manual Practical Volume II
In Quick Manual Practical Volume II, we will explain the procedure for
actually operating the EZA11K operation mode explained in Practical
Volume I using the Windows GUI software CNVCommCC distributed by TDK
Lambda.
When operating via RS485 using a PLC (Programmable Logic Controller),
the separate "EZA11K communication manual" explains character-based
commands and their formats (protocols) that correspond to the
CNVCommCC commands. Please refer to it.
In addition, it explains the control by the open collector contact using the
external signal connector CN.
Contents
1) Construction of communication environment with RS-485
2) Operation of Manual CV mode
3) Operation of Manual grid CV with battery CC mode
4) Operation of Automatic grid CV
5) Operation of Automatic grid CV with battery CC mode
6) Operation of Automatic battery CV mode
7) Operation of Manual CV mode using the external signal
connector CN
8) Operation of Manual grid CV with battery CC mode using
external signal connector CN
9) Operation of Automatic grid CV mode using external signal
connector CN
10) Operation of Automatic grid CV with battery CC mode using
external signal connector CN
11) Operation of Automatic battery CV mode using external signal
connector CN

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
1) Construction of communication environment with RS-485
The connection diagram for controlling EZA11K with RS-485 is shown below. Since it is also
described in Quick Manual basic version, if you have already referred to it, proceed to the
next chapter.
① LED of Indicator
② RESET :Tactile Switch
③ ADDRESS : Rotary Switch
④ Grid Signal connector (DC320V HVDC Terminal)
DC320V HVDC Power Supply Input Output Terminal: -V, NC*, +V (The fuse is
connected to +V) from the left
⑤ CN : External Signal Connector
⑥ DIP SW
⑦ RS-485 : Serial Interface Connector
⑧ Battery Signal connector (DC240V LVDC Terminal)
DC240V Power Supply Input Output Terminal: -V，NC*, +V (The fuse is connected to
+V) from the left
⑨ Ground terminal(M5 Screw)
NC*: No internal connection.
Select the DC / AC inverter with a regenerative function that can apply the
specified voltage to the grid side of EZA even when EZA is stopped, and that
can be used for DC
⇒
AC and AC
⇒
DC.
When connecting a DC input power source such as a PV inverter to the grid
side, enable “Grid Ramp Up” of EZA. For details on “Grid Ramp Up”, refer to
Quick
Manual
Practical III.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
The setting procedure is shown below.
Set the EZA to operation via RS-485 and the address on RS-485 to "0", the
communication speed to 19.2 kbps.
Set the terminal voltage on both the grid side and the battery side of the
EZA to 0 V, and then set as shown in the photo under the DIP switch on
the back.
Set the rotary switch on the front panel as shown in the picture below.
※ The factory setting is the above setting.
Set the terminal voltage on the EZA grid side and battery side to 0 V at the same
time, and then apply a voltage of DC120 V or more again. At this time, do not apply
a voltage exceeding the upper limit of the specification.
Start up the PC on which CNVCommCC is installed, and confirm that it can communicate
with the PC and EZA according to the operation manual of CNVCommCC distributed
together.
③
Check that communication is possible.
②
Restart the control board.
① Setting communication conditions for DIP switch and RS-485.
For details, refer to the
Instruction manual p10 and the
communication manual p6.
The control board is also restarted by applying 120VDC (not
exceeding the specified maximum voltage) to the battery or grid
side,

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
2) Operation of Manual CV mode
In this mode, charge / discharge switching is performed via RS485. The operation method is
as follows.
Start CNVCommCC and confirm that it can communicate with EZA.
Set the necessary parameters in Manual CV mode.
① Click the "Main" tab.
② Click “READ ALL” to display the current values of the EZA parameters.
③ Overwrite the parameters enclosed by the red line in the figure below if necessary
and click “WRITE”. Then click "READ" and confirm that the parameters have been
changed.
②
Set parameters of EZA.
①
Start CNVCommCC.
①
②
③

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
④ Click the “Other settings” tab.
⑤Click “READ ALL” to display the current value of EZA.
⑥ Overwrite the parameters enclosed by the red line in the figure below if necessary
and click “WRITE”.
⑦[CCF] Set battery function settings. Unless there is a specific reason, click all the
check boxes surrounded by blue dotted lines to enable them, and click "WRITE". For
"Rump up Battery Side" and "Rump up Grid Side" functions and precautions, refer to 3)
and 4) of Quick Manual Practical III.
⑧Click "READ ALL" to confirm that the parameters have been changed.
⑦
④
⑤
⑥
For the meaning of each parameter, refer to Quick Manual Practical I,
EZ
A
11K
Communication Manual p1
5
,
16
.
Each parameter can be overwritten (changed) even after the EZA main
converter is started.
The written parameters are retained even when the control board power
is turned off, and remain valid at the next startup.
⑧

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
① Click the "Main" tab.
② Turn on the radio buttons for “Heteronomy” and “With grid CC”.
③ Click “Grid CV” and the fan will rotate and start discharging.
④ Click “Battery CV” to switch to charging.
⑤ Click “Wait” to stop the main converter and enter Waiting.
⑥ Click “READ” to display the current operation status in the lower frame.
③
Start
EZA
①
②
③
④ ⑤ ⑥
Even after clicking “Wait”, the cooling fans will rotate for 3 minutes.
You can change to Automatic CV mode without “Wait”. In that case, turn on the
“Automatic” radio button and click “Battery CV” or “Grid CV”.
“with Grid CC” cannot be selected in “Battery CV” mode.
EZA automatically operates with "Battery CC".

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
3) Manual Grid CV with battery CC mode operation
① Turn on the radio buttons for “Heteronomy” and “With batt CC” in ② of the previous
operation.
②Perform the operations after ③ above.
When charging in Manual CV mode, the current is automatically limited by the
current value on the battery side without the above operation.
The Manual CV mode is useful when I want to control when
charging and discharging. In particular, the Manual grid CV with
battery CC mode seems to be used for boosting fuel cells.
However, switching between charging and discharging must be
done from the external controller, so when there is a power
outage or sudden cloudiness, switching from charging to
discharging may not be in time, the grid voltage will drop, and
EZA may stop due to Heavy Alarm….

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
4) Operation of Automatic grid CV mode
In this mode, EZA automatically charges and discharges so that the grid voltage is the
target voltage TGV..
Start CNVCommCC and confirm that it can communicate with EZA.
Set the necessary parameters in Automatic grid CV mode.
① Click the "Main" tab.
② Click “READ ALL” to display the current values of the EZA parameters.
③ Overwrite the parameters enclosed by the red line in the figure below if necessary
and click“WRITE”. Then click "READ" and confirm that the parameters have been
changed.
②
Set parameters of EZA.
①
Start CNVCommCC.
①
②
③

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
④ Click the “Other settings” tab and write the parameters enclosed in red in the figure
below. Click “WRITE”.
⑤Click “READ ALL” to display the current value of EZA.
⑥ Overwrite the parameters enclosed by the red line in the figure below if necessary
and click “WRITE”.
⑦[CCF] Set battery function settings. Unless there is a specific reason, click all the
check boxes surrounded by blue dotted lines to enable them, and click "WRITE". For
"Rump up Battery Side" and "Rump up Grid Side" functions and precautions, refer to 3)
and 4) of Quick Manual Practical III.
⑧Click "READ ALL" to confirm that the parameters have been changed.
⑦
④
⑤
⑥
For the meaning of each parameter, refer to Quick Manual Practical I,
EZA
11K
Communication Manual p1
5
,
16
.
Each parameter can be overwritten (changed) even after the EZA main
circuit is started.
The written parameters are retained even when the control board power
is turned off, and remain valid at the next startup.
⑧

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
① Click the "Main" tab.
② Turn on the radio buttons for “Automatic” and “With grid CC”.
③ Click “Grid CV” and the fan will rotate and start discharging.
④ Click “Wait” to stop the main converter and enter Waiting.
⑤ Click “READ” to display the current operation status in the lower frame.
③
Start
EZA
.
① ②
③ ④
⑤
Even after clicking “Stop”, the cooling fans will rotate for 3 minutes.
You can change to Manual CV mode without “Wait”. In that case, turn on the
“Manual” radio button and click “Battery CV” or “Grid CV”.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
5) Automatic Grid CV with battery CC mode operation
In this mode, EZA limits the current with LBC (Current Limit of Battery/Charge) and LBD
(Current Limit of Battery/Discharge) value set on the battery side when charging and
discharging in Automatic grid CV mode.
① Turn on the radio buttons for “Autonomy” and “With batt CC” in ② of the previous
operation.
②Perform the operations after ③ above.
In Automatic grid CV mode, EZA judges and switches between
charging and discharging so that the grid voltage is constant.
However, when the battery is fully charged or emptied, it is
impossible to operate at the constant voltage. So it is necessary to
pay attention to the remaining battery capacity.
I must also think about what to do when the battery is fully charged
or empty.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
6) Operation of Automatic battery CV mode
In this mode, EZA automatically charges and discharges so that the battery (LVDC) side
voltage becomes the target battery voltage: TBV.
Start CNVCommCC and confirm that it can communicate with EZA.
Set the necessary parameters in Automatic battery CV mode.
① Click the "Main" tab.
② Click “READ ALL” to display the current values of the EZA parameters.
③ Overwrite the parameters enclosed by the red line in the figure below if necessary
and click “WRITE”. Then click "READ" and confirm that the parameters have been
changed.
②
Set parameters of EZA.
①
Start CNVCommCC.
①
②
③

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
④ Click the “Other settings” tab and write the parameters enclosed in red in the figure
below. Click “WRITE”.
⑤Click “READ ALL” to display the current value of EZA.
⑥ Overwrite the parameters enclosed by the red line in the figure below if necessary
and click “WRITE”.
⑦[CCF] Set battery function settings. Unless there is a specific reason, click all the
check boxes surrounded by blue dotted lines to enable them, and click "WRITE".
For "Rump up Battery Side" and "Rump up Grid Side" functions and precautions, refer
to 3) and 4) of Quick Manual Practical III.
⑧Click "READ ALL" to confirm that the parameters have been changed.
⑦
④
For the meaning of each parameter, refer to Quick Manual Practical I,
EZA2500
Communication Manual p1
5
,
1
6
.
Each parameter can be overwritten (changed) even after the EZA main
circuit is started.
The written parameters are retained even when the control board power
is turned off, and remain valid at the next startup.
⑥ ⑤ ⑧

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
① Click the "Main" tab.
② Turn on the radio buttons for “Automatic”.
③ Click “Battery CV” and the fan will rotate and start charging or discharging.
④ Click “Wait” to stop the main converter and enter Waiting.
⑤ Click “READ” to display the current operation status in the lower frame.
⑥ In this mode, only "with Batt CC" operation is possible. Even if the “with Grid CC”
radio button is turned on, it is ignored.
③
Start
EZA
.
①
②
③ ④
⑤
Even after clicking “Wait”, the cooling fans will rotate for 3 minutes.
You can change to Manual CV mode without “Wait”. In that case, turn on the
“Manual” radio button and click “Battery CV” or “Grid CV”.
⑥

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
In the battery automatic CV mode, EZA11K judges and switches
between charging and discharging so that the voltage on the
battery side becomes constant, so it can be used for charging
and discharging 240 to 400VDC battery by connecting the battery
to the grid side.
However, even if a battery is connected to the grid side, there is
no protection function for preventing overcharge and over
discharge of the battery on the grid side. So, I have to monitor the
battery voltage with a separate controller and control EZA to
prevent overcharging and over discharging.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
7) Operation of Manual CV mode using the external signal connector CN
This section explains how to start and stop EZA using the external signal connector CN.
Prepare the battery, inverter, personal computer, etc. and connect them to EZA with
reference to p4 of this manual, Quick Manual Basics, Practice I, etc.
When using the external signal connector CN, it is necessary to set the EZA
operation mode with the DIP switch in advance.
In Manual CV mode using CN, set the address on RS-485 to “0” and the
communication speed to 19.2kbps.
Set the terminal voltage on both the grid side and the battery side of the
EZA to 0 V. As shown in the photo below, set the DIP switch 3 (third from
left) on the back to ON (pressed down).
Set the rotary switch on the front panel as shown in the photo below.
②Set the DIP switch to operate with Manual CV mode via external
signal connector CN.
①
Connect peripheral devices such as batter
y
to EZA.
For details, see p10 of the instruction manual
and p6 of the communication manual.
※ The factory setting is the above setting.

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
Set the terminal voltage on the EZA grid side and battery side to 0 V at the same
time, and then apply a voltage of DC120 V or more again. At this time, do not apply
a voltage exceeding the upper limit of the specification.
Start the personal computer on which CNVCommCC is installed, and confirm that
it can communicate with EZA according to the operating instructions distributed with
CNVCommCC.
Set parameters via RS485 while referring to " 2) Operation of Manual CV mode,
②Set parameters of EZA" on pages 6 and 7 of this manual.
①Short the pin 7 (RUN) of the external signal connector CN to SG (signal ground,
e.g. pin 8).
② EZA starts the main circuit from the Waiting and starts discharging.
③ To switch to charging, short pin 9 of the external signal connector CN to SG.
④ If pin 9 is opened, discharging will start again.
⑤ When pin 7 is opened, EZA stops the main circuit and enters Waiting.
⑥
Start EZA
.
④
Check that communication is possible with RS
-
485.
⑤
Set parameters of EZA.
③
Restart the control board.
The control board reads the values of DIP switch and rotary switch at
restart.
The control board is also restarted by applying the specified voltage to
either the battery or grid side.
Even when using an external CN, you need to set parameters via RS-485.
After parameter setting, the RS-485 cable can be removed

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TDK-Lambda
EZA11K series
Quick Manual / Practical(II)
8) Operation of Manual Grid CV with Battery CC mode using external signal
connector CN
EZA11K does not support "Manual Grid CV with Battery CC mode" using the external
connection terminal CN. When you want to use this mode, you should control via RS485.
9) Operation of Automatic grid CV mode using external signal connector CN
This section describes how to start and stop EZA in Automatic grid CV mode using the
external signal connector CN.
Prepare the battery, inverter, personal computer, etc. and connect them to EZA
referring to p4 of this manual, Quick Manual Basic, Practical I.
When using the external signal connector CN, it is necessary to set the EZA
operation mode with the DIP switch in advance.
In Automatic Grid CV mode using CN, set the address on RS-485 to “0” and the
communication speed to 19.2kbps.
Set the terminal voltage on both the grid side and the battery side of the
EZA to 0 V. As shown in the photo below, set DIP switches 1 and 3 (the
first and third from the left) on the back to ON (pressed down).
②Set the DIP switch to operate with Automatic Grid CV mode via
external signal connector CN.
①
Connect peripheral devices such as batter
y
to EZA.
EZA2500 can be controlled in "Manual Grid CV with Battery CC mode" using the
external connection terminal CN. For details, refer to the EZA2500 instruction
manual.