TDK-Lambda EZA11K-320240 Quick Manual Download Page 21

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TDK-Lambda

EZA11K series

Quick Manual / Practical(I)

Parameter

Function

Operation mode

Symbol

Name

LBV

Limit of Battery
Volts for
Discharging

Set the battery discharge lower
limit voltage of the battery over
discharge protection function

-Manual grid CV
-Manual grid CV with battery CC.
-Automatic grid CV
-Automatic grid CV with battery
CC.

DLD

Deviation of
Volts for
Warning of
Discharging
Lower Limit

Set the warning voltage to
inform you that the battery is
almost fully discharged. When
Battery Volt<LBV+DLD,
Warning signal is outputted.(Set
1 in Bit10 of CST)

-Manual grid CV
-Manual grid CV with battery CC.
-Automatic grid CV
-Automatic grid CV with battery
CC

DCD

Deviation of
Volts for
Cancel
Warning of
Discharging
Lower Limit

When Battery Volt
>LBV+DLD+DCD, Warning
signal is canceled. (Set 0 in
Bit10 of CST)

-Manual grid CV
-Manual grid CV with battery CC.
-Automatic grid CV
-Automatic grid CV with battery
CC.

*Deadzone: Converter is held in equilibrium operation that no operations neither generation
(Charge) nor regeneration (Discharge).

Summary of Contents for EZA11K-320240

Page 1: ... 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 ca...

Page 2: ...ment 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 condensatio...

Page 3: ...l explain them in Practical Volume I In using EZA11K We will also explain what you want to keep in mind such as limits on the range that can be combined with the voltage on the low voltage side and high voltage side and the power consumption of the EZA11K itself Contents 1 Explanation of terms of EZA 2 EZA11K panel terminal diagram 3 What can be done via RS485 what can be done with external contac...

Page 4: ...he power grid side Regeneration This is called electric power conversion in the opposite direction of power running In the case of EZA discharging from the battery side to the grid side is called regeneration Droop control Controlling to lower the output voltage in proportion to the magnitude of the output current is called droop control With these characteristics you can expect the effect of alig...

Page 5: ...e alarm is removed the main circuit is restarted from the standby state and put in operation With Light alarm the red LED on the front panel does not light up Also pin 1 of CN will remain short for SG in the figure on p6 of this manual The Converter Operation Good Signal PG Pin 3 is open to SG during Light alarm Waiting The control board is started but the main converter is stopped In EZA it is ca...

Page 6: ...nal V NC V The fuse is connected to V CN External Signal Connector It is an external signal terminal I O are open collector compatible DIP SW DIP Switch functions as a setting switch to designate operating mode and RS485 parameter of this converter RS 485 Serial Interface Connector LAN cable can be used with the same shape as Ether net used on RJ 45 PC LAN However it is not compatible with LAN Eth...

Page 7: ...rnal temperature Confirmation of rotation speed of air cooling fan External signal connecter CN can perform operations shown in bold Note to operate and with CN you need to make settings with DIP switch in advance For details check the general items in p8 12 in this manual and p10 in the instruction manual It is possible to forcibly stop the EZA by shorting Converter Operation Stop Command signal ...

Page 8: ...want to start the control board by applying voltage to CN pin 16 24Vi apply 24V to pin 16 This operation is not necessary if the DIP switch and rotary switch are not operated Restart the control board Set EZA to operation via RS 485 Set the rotary switch on the front panel as shown in the picture below The factory setting is the above setting For details refer to the instruction manual p10 and the...

Page 9: ...mCC Refer to the communication manual for how to send the start command Refer to the Quick Manual Practical II for the start command sending method using the GUI software CNVCommCC When EZA start up the green LED on the front panel lights up or flashes After receiving the Waiting command the main converter of EZA stops immediately but the fan continues to rotate for about 3 minutes for cooling and...

Page 10: ...control board can be supplied from CN pin 16 24Vi and the parameter can be set In this case you set once the voltage of pin 16 to 0V and then changes the DIP switch and the rotary switch Next you reapply the voltage This operation is not necessary if the DIP switch and rotary switch are not operated Restart the control board Set EZA to operation via CN If the operation setting is via CN EZA will n...

Page 11: ...lect either charge or discharge Set parameters of EZA Refer to the communication manual for how to set parameters Refer to the Quick Manual Practical II for the parameter setting method using the GUI software CNVCommCC When EZA start up the green LED on the front panel lights up or flashes And CN pin 3 is shorted to SG potential When pin 7 is opened the main circuit of EZA stops immediately but th...

Page 12: ... to some trouble short the CN pin 5 to the SG potential regardless of the operation via RS 485 or CN This will cause EZA to stop the main converter issue a heavy alarm and enter standby mode To restart open pin 5 and clear the alarm For details such as electrical specifications refer to p11 and p12 of the instruction manual To clear the heavy alarm 1 short CN pin 11 to SG potential 2 Press the res...

Page 13: ...sing pin 9 of external terminal CN described above In this mode EZA is charged with the set value parameter of the target battery voltage and the battery limit current on the battery side and when it reaches the target battery voltage the current is reduced and maintained so that no further voltage rises Operating Characteristic Manual Grid CV mode Select this mode if you want to discharge with EZ...

Page 14: ...bove When discharging the maximum current setting value on the battery side not the grid side will not be exceeded For example when a fuel cell is connected to the battery in this mode it is possible to boost the target voltage to 300V or higher while controlling the output current of the fuel cell In battery CC mode the EZA operates at a substantially constant current at the battery limit current...

Page 15: ...with power from a solar cell even if the sun is blocked by a cloud and the output of the solar cell disappears EZA automatically switches to discharging from the battery to supply power to the load and operate It is possible to continue Operating Characteristic Note that in this mode if a power supply that controls the voltage on the grid side is connected in addition to EZA it may interfere with ...

Page 16: ...mit the charge discharge voltage with the battery current value in grid autonomous CV mode Automatic Battery CV mode In this mode charging and discharging are performed to maintain the battery voltage Specifically it discharges when the battery side voltage exceeds the set target voltage and charges when it falls below EZA performs almost the same operation as the grid autonomous CV battery CC mod...

Page 17: ...his function is disabled when shipped from the factory Change the battery setting BCF parameter using RS 485 to enable it When the battery voltage reaches the warning of pre Full or Empty battery voltage EZA changes the internal registers from 0 to 1 When an inquiry is received via RS485 the value of the registers is returned Note In automatic grid CV mode the grid side voltage may not be maintain...

Page 18: ...rrent and voltage In the Limited Area the output current is halved and a warning is issued The operation stops at the outside of the line and in the stop area and a heavy alarm is issued the outside the operation range In order to check the warning issued in the current limit area it is necessary to query the converter status CST from EZA11K via RS485 For details refer to p19 of the communication ...

Page 19: ... of Battery Set the droop rate to balance the charging current on the battery side during parallel operation Manual battery CV Automatic battery CV LBC Current Limit of Battery Charg e Sets the charging battery current limit constant current value Manual battery CV Automatic battery CV Automatic grid CV with battery CC LBD Current Limit of Battery Discha rge Sets the discharging battery current li...

Page 20: ...value on the grid side for discharging battery Manual grid CV Automatic grid CV OGV Over Grid Volts Set the threshold value of the overvoltage protection function on the grid side voltage All modes UGV Under Grid Volts Set the threshold value of the low voltage protection function on the grid side voltage All modes CCF Converter Configure Function Flag bit assignment Battery overcharge protection ...

Page 21: ...ing voltage to inform you that the battery is almost fully discharged When Battery Volt LBV DLD Warning signal is outputted Set 1 in Bit10 of CST Manual grid CV Manual grid CV with battery CC Automatic grid CV Automatic grid CV with battery CC DCD Deviation of Volts for Cancel Warning of Discharging Lower Limit When Battery Volt LBV DLD DCD Warning signal is canceled Set 0 in Bit10 of CST Manual g...

Page 22: ... And the communication of via RS 485 and CN is possible In this state about 7 to 10W of power is consumed This state is called Waiting in EZA For details refer to page T 14 of EZA11K Evaluation data Power consumption after starting main circuit main converter When the main circuit of the EZA11K is started the power of about 100 to 400W is consumed even when the output current is 0 A due to the pow...

Page 23: ... 23 TDK Lambda EZA11K series Quick Manual Practical I ...

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