TDK-Lambda PH-A280 Series 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.
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.
· When the product is operating, keep your hands and face away from it as you may be injured by flying debris in the event
of a fault.
· Do not make unauthorized changes to this product, otherwise you may receive an electric shock and void your warranty.
· Do not use this product in the event of the emission of smoke or abnormal smell and sound etc. It might lead to fire and/or
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/or electric shock.
· Do not drop or insert anything into the product. It might lead to a failure, fire and/or electric shock.
CAUTION
· This power supply is designed 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, Base-plate temperature, ambient temperature and ambient humidity should be
kept within specifications, otherwise the product will be damaged or malfunctioned.
· Do not operate and store this product in an environment where condensation might occur. In such case, waterproof
treatment is necessary.
· Never operate the unit under over current or shorted conditions for 30 seconds or more and out of Input Voltage Range as
specification. Insulation failure, smoking, burning or other damage might occur to the unit.
· Do not use this product in environment with a strong electromagnetic field, corrosive gas or conductive substances.
· For applications which require very high reliability (Nuclear related equipment, traffic control equipment, etc.), it is
necessary to provide a fail safe mechanism in the end equipment.
· The information in this document is subject to change without prior notice. Please refer to the latest version of the data
sheet, etc., for the most up-to date specifications of the product.
· No part of this document may be copied or reproduced in any form without prior written consent of TDK-Lambda.
· Do not inject abnormal voltages into the output or signal of this product. The injection of reverse voltage or over voltage
exceeding nominal output voltage into the output or signal terminals might cause damage to internal components.
· Operation of this product under over-current or short circuit conditions can result in damage. Failures of the product under
these conditions have been assessed and are considered to be safe within the meaning of IEC/UL/CSA 60950-1.
· On the occasion of obtain of Safety Standard, this power supply is not considered for connect between +Vin terminal and
earth.
· In order to maintain SELV output, the base-plate must be protectively earthed in the end application. Where the base-plate
is not earthed, the output must be considered hazardous and must not be made user accessible.
· The output of this product may, under fault conditions, exceed SELV voltage limits. Therefore the output must be earthed
in the end equipment to maintain SELV. If the output is not earthed, they must be considered hazardous and must not be
made user accessible.
· 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 an external fuse to each module to ensure safe operation and compliance with the Safety Standards to which it is
approved. Moreover, it is necessary to use fast-blow type when selecting fuse.
PH-A280 Series
Instruction Manual
TDK-Lambda
PH-A280 Series
INSTRUCTION MANUAL
C263-04-11A