Overload & Overcurrent Protections (Auto-Recovery)
The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current is between 95%
and 108% of I O (Max load). Upon such an occurrence, the VO
(output voltage) will start to droop. Once the power supply has
reached its maximum power limit, the protection will be activated;
and, the power supply will operate in “CC mode”. The power supply
will recover once the fault condition once the cause of OLP or OCP
is removed, and IO is back within the specified range.
Short Circuit Protection (Auto-Recovery)
The power supply’s output OLP/OCP function also provides
protection against short circuits. When a short circuit is applied, the
power supply will operate in “CC mode”, as shown in the illustration
in the OLP/OCP section on this page. The power supply will return
to normal operation after the short circuit is removed.
Overvoltage Protection (Latch Mode)
The power supply’s overvoltage circuit will be activated when its
internal feedback circuit fails. The output voltage shall not exceed
its specifications defined on Page 6 under “Protections”. Power
supply will latch off, and require removal/re-application of input AC
voltage in order to restart.
The power supply should be latch.
Over Temperature Protection (Auto-Recovery)
As mentioned above, the power supply also has Over Temperature
Protection (OTP). In the event of a higher operating temperature at
100% load, the power supply will run into OTP when the operating
temperature is beyond what is recommended in the de-rating
graph. When activated, the output voltage will go into bouncing
mode until the temperature drops to its normal operating
temperature as recommended in the de-rating graph.
Others
Delta RoHS Compliant
Restriction of the usage of hazardous substances
The European directive 2011/65/EU limits the maximum impurity level of homogeneous materials such as lead,
mercury, cadmium, chrome, polybrominated flame retardants PBB and PBDE for the use in electrical and
electronic equipment. RoHS is the abbreviation for “Restriction of the use of certain hazardous substances in
electrical and electronic equipment”.
This product conforms to this standard.
PFC – Norm EN 61000-3-2
Line Current Harmonic content
Typically, the input current waveform is not sinusoidal due to the periodical peak charging of the input capacitor.
In industrial environment, complying with EN 61000-3-2 is only necessary under special conditions. Complying to
this standard can have some technical drawbacks, such as lower efficiency as well as some commercial aspects
such as higher purchasing costs. Frequently, the user does not profit from fulfilling this standard, therefore, it is
important to know whether it is mandatory to meet this standard for a specific application.
Attention
Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information for
using the product. In the event of any discrepancy between the information in the catalog and datasheets, the datasheets shall prevail
(please refer to www.DeltaPSU.com for the latest datasheets information). Delta shall have no liability of indemnification for any claim or
action arising from any error for the provided information in the datasheets. Customer shall take its responsibility for evaluation of using
the product before placing an order with Delta.
Delta reserves the right to make changes to the information described in the datasheets without notice.