TDK-Lambda RWS 1500B Series, Инструкция по эксплуатации

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INSTRUCTION MANUAL
RWS1000B
•
1500B Series
TDK­Lambda
<Page>
6. Explanation of Functions and Precautions
6­1. Input Voltage Range
Input voltage range is single phase 85­265VAC (47­63Hz) or 120­340VDC.
Input voltage, which is out of specification, might lead unit damage. For cases where conformance to various
safeties required, described as 100­240VAC (50­60Hz).
Output derating is required for AC input voltage less than 90VAC.
6­2. Output Voltage Range
Output voltage is set at the rated value. Output voltage within the range specified can be adjusted by V.ADJ
trimmer. Output voltage must be within spesification.
Turning the trimmer clockwise, the output voltage will be increased. Take note when the output voltage is
increased. Excessively, over voltage protection (OVP) function may trigger and voltage will be shut down.
Furthermore, when increasing the output voltage, reduce the output current as not to exceed the maximum
output power.
When the trimmer turns quickly at no load condition, the output voltage might become unstable. To maintain
the output voltage stable, flow the output current, or remove the input of power supply until the output be
shut down, and then re­input. Please turn the trimmer slowly during the output voltage adjustment.
6­3. Inrush Current
Thyristor method is used for limiting the inrush current. Higher current may flow when input turn on interval
is short.
First inrush current and second inrush current flow.
Please select input switch and external fuse carefully.
6­4. Over Voltage Protection (OVP)
The OVP function is inverter shut down method and manual reset type. OVP function operates within
Specification.
When OVP triggers, the output will be shut down. To reset OVP, remove the input of power supply for a few
minutes, and then re­input. Or, use Remote ON/OFF reset on option model /R and /RFO only (Remote : OFF to
ON). In addition, the setting value of OVP is fixed and not adjustable. Never apply higher voltage externally to
the output terminal to avoid unit failure. In case of inductive load, put protective diode in series to the output
power line.
6­5. Over Current Protection (OCP)
Constant current limit with automatic recovery.
OCP function operates when the output current exceeds 105% of maximum DC output current of specification.
The outputs will be automatically recovered when the overload condition is removed. Never operate the unit
under over current or shorted conditions, which may lead unit damage. OCP setting is fixed and cannot be
adjusted externally.
6­6. Delay Shut Down
This product have a delay shut down function provided to protect power supply and equipment at the time
when the output current exceeds maximum DC output current of specification. When the product operate
over current condition for more than 5 seconds, delay shut down function operates and the output will be shut
down.
To reset delay shut down, remove the input of power supply for a few minutes, and then re­input. Or, use
Remote ON/OFF control reset on option model /R, /RFO and /S only ( Remote : OFF to ON).
Delay Shut Down Time value is fixed and not to be adjusted externally.
6­7. Over Temperature Shut Down
Over temperature shut down function is provided.
When ambient or internal temperature rises abnormally, over temperature shut down function operates and
output will be shut down. After shut down, remove the input and cool it down to reset over temperature shut
down, and then re­input. Over temperature shut down function operates at out of the specification area.
This function may not activate or cannot avoid power supply damage depending on the situation.
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