Helios Power Solutions TDK-Lambda PFE300SA Series Instruction Manual

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PFE300SA
BEFORE USING THE POWER SUPPLY UNIT
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. There are risks of igniting these
substances and exploding by an arcing
WARNING
· Do not touch this product or its internal components while circuit is live, or shortly after shut down. There may be
high voltage or high temperature present and you may receive an electric shock or burn.
· While this product is operating, keep your hands and face away from it as you may be injured by an unexpected situation.
· Do not make unauthorized changes to this product, otherwise you may receive an electric shock and void your warranty.
· Do not drop or insert anything into the product. It might lead to a failure, fire and electric shock.
· Do not use this product under unusual condition such as emission of smoke or abnormal smell and sound etc.
It might lead 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 these products in the presence of condensation. It might lead to fire and electric shock.
CAUTION
· This power supply is designed and manufactured for use within an end product such that it is accessible to
SERVICE ENGINEERS only.
· Confirm connections to input/output terminals and signal terminals are correct as indicated in the instruction manual
before switching on.
· Input voltage, Output current, Output power, ambient temperature, base-plate temperature and ambient humidity should be
kept within specifications, otherwise the product will be damaged.
· Do not operate and store this product in an environment where condensation might occur. In such case, waterproof treatment
is necessary.
· The equipment has been evaluated for use in a Pollution Degree 2 environment.
· Do not use this product in environment with a strong electromagnetic field, corrosive gas or conductive substances.
· For application which requires very high reliability (Nuclear related equipment, medical equipment, traffic control
equipment, etc.), It is necessary to provide a fail-safe mechanism in the end equipment.
· Do not inject abnormal voltages into the output terminal or signal terminal of this product. The injection of reverse voltage or
over voltage exceeding nominal output voltage into the output terminal or signal terminal might cause damage to internal
components.
· Never operate the product under overcurrent or short circuit conditions. Insulation failure, or other damages may occur.
· The output voltage of this power supply unit is considered to be a hazardous energy level (The voltage is 2V or more and the
electric 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 AC input power must be switched off and the input, output, +BC, -BC and R terminal voltage should be safe
level.
· The application circuits and their parameters are for reference only. Be sure to verify effectiveness of these circuits and their
parameters before finalizing the circuit design.
· Use a Fast-Blow external fuse to each module to ensure safe operation and compliance with the safety standards to which it is
approved. The recommended input fuse rating within the instructions is as follows: 15A, 250V fast acting fuse. The breaking
capacity and voltage rating of this fuse may be subject to the end use application.
・ 500SA Series
Instruction Manual
.
www.heliosps.com
TDK-Lambda
・ 500SA Series
PFE300SA
INSTRUCTION MANUAL
C265-04-11D

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Summary of Contents for Helios Power Solutions TDK-Lambda PFE300SA Series

  • Page 1 TDK-Lambda ・ 500SA Series PFE300SA INSTRUCTION MANUAL ・ 500SA Series PFE300SA Instruction Manual BEFORE USING THE POWER SUPPLY UNIT 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.
  • Page 2 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL CAUTION · The outputs less than 28V model has possibility that hazardous voltage may occur in output terminal depending on failure mode. The output of these products must be protected in the end use equipment to maintain SELV. ·...
  • Page 3 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 1. Model name identification method PFE 500 SA – 12 /□ Option(*1) (*1) /Blank: Standard Rated Output Voltage /T :Mounting standφ3.3 (Non-threaded through hole) Simple function Output Power type Series Name 2. Terminal Explanation ①...
  • Page 4: Block Diagram

    TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 3. Block Diagram Switching Frequency PFHC Circuit (fixed) : 100kHz DC/DC Converter Circuit (fixed) 12, 28V : 230kHz (primary), 460kHz (secondary) DC/DC Converter Circuit (fixed) 48V : 180kHz (primary), 360kHz (secondary) Sequence Time Chart Note : This product has no remote ON/OFF function.
  • Page 5 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 5. Terminal connecting method In order to use the PFE300SA,500SA Series, this module must be connected with external components according to Fig.5-1. Pay attention to the each wiring. If it is connected to wrong terminal, the power supply will be damaged. PFE300SA,500SA Series employs conduction cooling method.
  • Page 6 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL F1 : External Input Fuse PFE300SA,500SA Series has no internal fuse. Use external fuse to acquire each Safety Standard and to further improve safety. PFE300SA,500SA Series acquired safety standard certification using 15A, 250V,Fast-Blow external fuse. Further, Fast-Blow type fuse must be used per one module. Also, in-rush surge current flows during line throw-in.
  • Page 7 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL R1 : 470kΩ Connect bleeder resistor across AC(L) and AC(N) terminals. C6, C7 : 1000pF(Ceramic Capacitor) Add ceramic capacitor as EMI/EMS countermeasure. Be sure to consider leakage current of your equipment when adding this capacitor. High withstand voltage are applied across these capacitor during withstand voltage test depending on the application.
  • Page 8 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL C14: Refer to Table 5-1 To reduce output ripple noise voltage, connect electrolytic capacitors across +V and –V. Connect C14 as close as possible to the +V and -V output terminals of this power module. Table 5-1 C14 : Recommended output external capacitance C15: 2.2uF(Ceramic Capacitor) Connect chip ceramic capacitor at 50mm from the output terminals +V and -V of the power module to...
  • Page 9 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL ●Selection Method of External Bulk Capacitor for Boost Voltage Boost voltage bulk capacitor is determined by boost voltage ripple voltage, ripple current and hold-up time. Select capacitor value such that boost voltage ripple voltage does not exceed 15Vp-p. Note) When ambient temperature is -20℃...
  • Page 10 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL TFR1 : 10Ω - 100Ω By connecting thermal fuse resistor across R and +BC terminals as shown in Fig. 5-1, in-rush current during line throw-in can be suppressed. Failures due to in-rush current such as melting of external fuse, welding of relay or switch connecting joints or shutdown of No-Fuse Breakers (NFB) can occur.
  • Page 11 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 6. Explanation of Functions and Precautions 6-1. Input Voltage Input voltage range is single phase 85-265VAC(47-63Hz). Take care not to apply input voltage which is out specified range nor should a DC input voltage be applied as this would result into power supply damage.
  • Page 12 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 6-4. Over Voltage Protection (OVP) This module is equipped with OVP function. OVP function operates within 125%-145% of nominal output voltage. When OVP triggers, the output will be shut down. When the OVP function activates, first cut off input line and verify that boost voltage has dropped down to 7V or less.
  • Page 13 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 6-8. Power ON Signal (ENA Terminal) This signal is located at the secondary side (output side) and is an open drain output. Maximum sink current : 10mA Maximum applied voltage : 75V. Return line for ENA terminal is the -V terminal. When output voltage goes over a specified voltage level at start up, Power ON signal is “Low level”.
  • Page 14: Series Operation

    TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 6-10. Series Operation Series operation is possible for PFE300SA,500SA Series. Connections shown in Fig. 6-5 and Fig. 6-6 are possible. Also, Maximum allowable modules in series is 3 pieces. Load Load Load C14' C16' C14' C16'...
  • Page 15 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 6-12. Withstand Voltage Test This series is designed to withstand 2.5kVAC between input and base-plate, 3.0kVAC between input and output and 1.5kVDC between output and base-plate each for 1 minute. When testing withstand voltage, set current limit of withstand voltage test equipment at 20mA.
  • Page 16: Mounting Method

    TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 7. Mounting Method 7-1. Mounting Method These products can be used in any orientation but be sure to consider enough airflow to avoid heat accumulation around the power supply. Consider surrounding components layout and set the PCB mounting direction such that air can flow through the heat sink by forced or convection cooling.
  • Page 17 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 7-3. Notes on Designing PWB for Power Module Mounting In order to satisfy withstand voltage specification, it is recommended to keep following distances for each pattern wiring and mounting components distance of primary circuit (Input), secondary circuit (Output) and FG (Baseplate).
  • Page 18 TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 7-4. Recommended Soldering Condition Recommended soldering temperature is as follows. Soldering Dip :260℃, within 10 seconds Preheat :130℃, within 60 seconds 7-5. Recommended washing Condition. After soldering, following washing condition is recommended. For other washing conditions, consult our Customer Support Group. (1) Recommended washing solution ・IPA(Isopropyl Alcohol)...
  • Page 19: Warranty Period

    TDK-Lambda PFE300SA ・ 500SA Series INSTRUCTION MANUAL 9. Warranty Period Warranty period is 5 years. For damages occurring at normal operation within this warranty period, repair is free of charge. Following cases are not covered by warranty (1) Improper usage like dropping products, applying shock and defects from operation exceeding specification of the unit.

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