PMF-24V240WCXX Datasheet, PDF (12/14 Pages) Delta Electronics, Inc. – Built-in Active PFC and fan speed control

TECHNICAL DATASHEET
PMF Panel Mount Power
24V 240W 1
/ PMF-24V240WC□□
Overload & Overcurrent Protections (Auto-Recovery)
The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current exceeds
105-150% of IO (Max load). In such occurrence, the VO will start
to droop and once the power supply has reached its maximum
power limit, the protection is activated and the power supply will
go into “Hiccup mode” (Auto-Recovery). The power supply will
recover once the fault condition of the OLP and OCP is removed
and IO is back within the specifications.
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 3 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.
It is not recommended to prolong the duration of IO when it is
<105% but >100%, since it may cause damage to the PSU.
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 output current will operate in “Hiccup 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.
Over Temperature Protection (Auto-Recovery)
As described in load de-rating section, the power supply also has
Over Temperature Protection (OTP). In the event of a higher
operating temperature at 100% load; or, when the operating
temperature is beyond what is recommended in the de-rating
graph, the OTP circuit will be activated. When activated, power
supply will latch off, until the surrounding air temperature drops to
its normal operating temperature or the load is reduced as
recommended in the de-rating graph. Removal/re-application of
input AC voltage will then be required in order to restart
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All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2017, Rev. 01)