TDK-Lambda
PFH500F-SERIES
EVALUATION BOARD INSTRUCTION MANUAL
PFH05W Evaluation Board Instruction
Manual for PFH500F AC-DC Power Modules
BEFORE USING THE POWER SUPPLY UNIT
Be sure to read and understand 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 potential risks of igniting
these substances caused by 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. It will also void the product
warranty.
• Do not drop or insert anything into the product. It might lead to a failure, fire or electric shock.
• Do not use this product if abnormal conditions such as emission of smoke and/or abnormal smell, etc… are present. It might lead
to fire and/or electric shock. In such cases, please contact TDK-Lambda. Do not attempt to 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 or electric shock.
CAUTION
• This power supply is designed and manufactured for use within an end product such that it is accessible only to trained SERVICE
ENGINEERS.
• Confirm that the connections to input/output terminals, and signal terminals are correct as specified in this instruction manual
before turning on the power.
• Input voltage, Output current, Output power, ambient temperature, case temperature, and ambient humidity should be kept within
the specifications, otherwise the product may be damaged.
• Do not operate or store this product in an environment where condensation can occur. Waterproof treatment or special storage
and handling 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 applications, which require very high reliability, such as 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 terminals or signal terminals of this product. The injection of reverse voltage or
over voltage exceeding nominal output voltage into these terminals can damage the internal components of the product.
• Never operate the product under over-current or short circuit conditions. Failure or other damage 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 240W 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, +VBus, and -VBus terminal voltages should be at a 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: 10A, 250V fast acting fuse. The breaking
capacity and voltage rating of this fuse may be subject to the end use application.
August 28, 2020 v2.0
Evaluation Board Instruction Manual – PFH500F Series
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