UF40.241
UF-Series
24V,
40A,
160
MS
,
B
UFFER
M
ODULE
I
NDEX
Page
Page
Intended Use .......................................................3
Installation Notes ................................................3
Functional Description ........................................4
Electrical Ratings .................................................5
Selection of the Back-up Threshold Voltage .....6
Buffer Time..........................................................6
Charging Time .....................................................7
Operating Diagrams............................................7
Active Signal ........................................................8
Ready Signal ........................................................8
Inhibit Input.........................................................8
Efficiency and Power Losses................................9
Lifetime Expectancy and MTBF...........................9
Functional Diagram...........................................10
Terminals and Wiring....................................... 10
Front Side and User Elements .......................... 11
EMC ................................................................... 12
Environment ..................................................... 13
Protection Features .......................................... 13
Safety Features ................................................. 13
Dielectric Strength............................................ 14
Approvals .......................................................... 14
Physical Dimensions and Weight ..................... 15
Accessories ........................................................ 16
ZM2.WALL - Wall mounting bracket .......16
ZM14.SIDE - Side Mounting Bracket........17
Wiring Diagrams............................................... 18
The information given in this document is correct to the best of our knowledge and experience at the time of publication. If not
expressly agreed otherwise, this information does not represent a warranty in the legal sense of the word. As the state of our
knowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask
you to always use the latest issue of this document (available under www.pulspower.com). No part of this document may be
reproduced or utilized in any form without our prior permission in writing.
Some parts of this unit are patent by PULS (US patent No 091662,063, Des. 424,529, …).
T
ERMINOLOGY AND
A
BREVIATIONS
Power supply mode
Describes a condition where the supply voltage is in the rated supply voltage range and the
supplying power supply can deliver a sufficient amount of current for the buffer module and
the load. The mode can also be called “Normal mode”.
Buffer mode
Describes a condition where the input voltage is below the transfer threshold level, the unit
is running on capacitors (buffering) and the output is loaded within the allowed limits.
The mode can also be called “Capacitor mode”.
Inhibit mode
Describes a condition where buffering is disabled on purpose (e.g. for service actions).
T.b.d.
To be defined, value or description will follow later.
DC 24V
A figure displayed with the AC or DC before the value represents a nominal voltage with
standard tolerances included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V).
24Vdc
A figure with the unit (Vdc) at the end is a momentary figure without any additional
tolerances included.
may
A key word indicating flexibility of choice with no implied preference.
shall
A key word indicating a mandatory requirement.
should
A key word indicating flexibility of choice with a strongly preferred implementation.
Oct. 2016 / Rev. 1.0 DS-UF40.241-EN
All parameters are specified at 24V, 40A, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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