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INSTRUCTION MANUAL
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 cove r 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 yourself, 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.
• 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.
EZA2500FC
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TDK-Lambda
EZA2500FC
INSTRUCTION MANUAL
V008-04-11/FC

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Summary of Contents for TDK-Lambda EZA2500FC

  • Page 1 TDK-Lambda EZA2500FC INSTRUCTION MANUAL EZA2500FC INSTRUCTION MANUAL 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.
  • Page 2 TDK-Lambda EZA2500FC INSTRUCTION MANUAL • 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.
  • Page 3: Operation

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 1. Over View 1-1. System Construction Example Example of power conversion system is below. This example is constructed in Manual CV Mode meaning the power conversion direction is controlled by Host System. Generation (Charge) + Regeneration (Discharge) - HVDC BUS (Grid)...
  • Page 4 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 2. Part Number Indication EZA 2500 - 32048 Optional Code Rated Input / Output Voltage Rated Output Power Series Name 3. Explain of Terminal Connection Take care of wiring this power supply. Incorrect wiring will damage this product.
  • Page 5: Connection Method

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 3-2. Appropriate Connectors, Housing and Terminal Pins for use in this power supply Part Name Model Name Maker Connector (Pin Header) S16B-PADSS-1 Housing (Socket Housing) PADP-16V-1-S SPH-002T-P0.5 (AWG28-24) Terminal Pin (Contact) SPH-001T-P0.5 (AWG26-22) Crimping Tool AP-K2N 4.Connection Method Take care of wiring this power supply.
  • Page 6: Operation Mode

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 6. Operation Mode By apply external voltage, HVDC side is more than 250VDC or LVDC side is more than 28VDC the control circuit will be initialized and setting information will be loaded from the non-volatile memory.
  • Page 7 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 6-2. Automatic Grid CV mode Grid voltage is maintained at set target voltage. Regeneration Output Input (Discharge) If grid voltage is lower than the target voltage : (Grid) (Battery) Regeneration Operation (Discharge) Igrid If grid voltage is higher than the target voltage:...
  • Page 8 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 6-4. Manual Battery CV mode At this mode the converter works only generating operation. Battery port is controlled by constant voltage or constant current. Battery bus rump up mode can be selected for charged up capacitor of battery side from 0V and/or for operation as bus converter.
  • Page 9: Battery Protection

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 7. Battery Protection The converter will restrict the current for avoid the over-charge and over-discharge when battery voltage reach to the setting value if battery protection is enabled (See illustration below). Vbat Over Charging Protection Volt...
  • Page 10: User Interface

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 8. User Interface The front panel of this converter has a tact switch, rotary switch and 3 LEDs. Also the rear panel has an 8-bit DIP switch. 8-1. Tact SW The tact switch functions as alarm clear button when the alarm is activated due to abnormal occurrence.
  • Page 11: System Interface

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 8-4. Operating Status Indicator The Front Panel of this converter has LEDs (3 pcs) as operating status indicator. The LED arrangement is shown below together with the conditions when these LEDs light up or turn off.
  • Page 12 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 9-1-5. Charge/Discharge Conversion Command, CHRG Charge/Discharge Conversion Command, CHRG (Pin 9) is used for operation mode change. The converter change to the Charging mode when this signal is open. The converter change to the Discharging mode when this signal short to SG.
  • Page 13 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 9-2. Serial Interface Connector This converter uses RS-485 as serial interface to the host devices. The connector type uses the same RJ-45 (shielded) as the general-purpose LAN cables. The interface connector layout as seen from the rear panel is shown below.
  • Page 14 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 9-4. Broadcast Address Interface Address "0xFF" and Interface "0xkF"(k : 0~7) are special addresses and functions as broadcast address. When "0xFF" is set as receiving address in command sent by Host, all the converters connected within the interface bus receives that command.
  • Page 15 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 10-2. Alarm Category and their Details Operating Mode Manual Mode Automatic Mode Waiting Alart Item Battery Grid Battery Grid Battery Over Voltage Light Alarm Heavy Alarm Light Alarm Heavy Alarm Light Alarm Battery Under Voltage Light Alarm...
  • Page 16 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 10-2-10. Abnormal Temperature of Heatsink(Primary) Abnormal temperature at Heatsink (Primary) detection is done through thermistor its detection temperature is about 100 degree C. Signal from the Abnormal detect circuit triggers Abnormal Temperature at Heatsink(Primary). Detect threshold level is fixed.
  • Page 17 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 11-4. Output Ripple & Noise The specification for maximum ripple value is measured according to specified measurement circuit. When a distance of Load line becomes long, the ripple noise can be reduced by attach the Electrolytic capacitors, film capacitors, etc to the load terminals.
  • Page 18: Withstand Voltage Test

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 11-9. Withstand Voltage Test This converter is designed to withstand 3kVAC between primary (DC320V) and secondary (DC48V) & signals, 2kVAC between primary (DC320V) and chassis ( 707VDC between secondary (DC48V) & signals and chassis ( ) each for 1minute.
  • Page 19 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 12. Mounting Please install reliable using M4 tap 8 places of the bottom of chassis (see below circle). The maximum allowable penetration of mounting screws is 6mm. Converter Bottom View Warning When installing EZA2500, load the body on the chassis base side.
  • Page 20 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 12-1. Mounting Direction Recommended standard mounting method (A). (A)Standard Mounting (B) Not possible 12-2. Mounting Method (1) Forced air cooling type converter. This converter has ventilating holes on the front and rear side panel. Keep these two areas freely as much as possible.
  • Page 21 TDK-Lambda EZA2500FC INSTRUCTION MANUAL 13. Output Derating 13-1. LVDC Voltage vs LVDC Current Derating 13-2. HVDC Voltage vs HVDC Current Derating 13-3. HVDC Voltage vs LVDC Voltage Derating 13-4. Ambient Temperature vs Output Derating Ambient Temperature (℃) <Page> 21/23...
  • Page 22: Wiring Method

    TDK-Lambda EZA2500FC INSTRUCTION MANUAL 14. Wiring Method (1)The output load line and input line should be separated. (2)Use all lines as thick and short as possible to make lower impedance. The lines shall be twisted or use shielded wire to improve noise sensitivity.
  • Page 23 The Fan-life expectancy is about 10 years at 50 degree C intake-air temperature. Therefore, periodic maintenance by exchanging the life-expired fan is required for the converter. Fan replacement service will be a charge, please contact your local TDK-Lambda sales office. Measurement point...

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