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Dynacord DEM 313 manual

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Table of contents for the manual

  • Page 1

    CHARGING UNIT DEM 313 Features — fully automatic charging unit 24V/4A for constant I/U battery charging in continuous batt ery power supply mode — regulation of charging voltage with high-efficiency primary switched chopper regulat or — charging output with short-circuit and reverse voltage protection — integrated battery monitoring module [...]

  • Page 2

    The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to ale[...]

  • Page 3

    1 3-digit LC display for charging voltage or charging current 2 LC display switch showing the charging voltage in V or the charging current in A 3 LED function and failure indications: Failure indication for overvoltage OVERVOLTAGE Failure indication for low voltage LOW VOLTAGE Function indication for mains voltage LINE VOLTAGE Function indication [...]

  • Page 4

    LIST OF CONTENTS SAFETY INSTRUCTIONS / SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2. Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 5

    1. Application The charging unit DEM 313 was especially designed for fully automatic charging and monitor ing of batteries in the emergency power supplies of alarm devices. In conjunction with the batt ery modules DEM 316 with 38 Ah or DEM 317 with 65 Ah rated capacity, this combination results in a reliabl e and failsafe emergency power source for[...]

  • Page 6

    Fig. 1 Connection of the battery to the charging unit 3.1 Control connector BATTERY CONTROL Various control input/outputs are available at the 15-pole D-sub pin connector BATTERY CONT ROL (9): (Also see Figure 2): - Input temperature sensor +TEMP/-TEMP - Output exhaustive discharge relay +LVR/-LVR - Failure signal output FAILURE Fig. 2 Connections [...]

  • Page 7

    Fig. 3 PCB 85254 Location of the wire jumpers S501 - S504 for altering mains voltage and position of the output fuse F503 5. Battery charging 5.1 Charging the batteries in the battery modules DEM 316 or DEM 317 Once the charging unit has been connected to the battery module correctly, (see Section 3) and the mains voltage is present the green LEDs [...]

  • Page 8

    - max. value - rated value - min. value 5.2 Charging of other batteries DYNACORD battery modules DEM 316, DEM 317 or other maintenance - free 24V lead-acid batter ies with a rated capacity up to 65 Ah can be charged with the charging unit DEM 313. To do so, the charging output CHARGE OUTPUT + (8) is to be connected with the plus pole and the chargi[...]

  • Page 9

    6.1 OVERVOLTAGE protection This circuit monitors the value of the output voltage of the charging unit. lf the output vo ltage exceeds the pre-set upper threshold, the red LED OVERVOLTAGE lights up, the charging unit is disconnect ed from battery and consumers automatically, activating the error message. Thereby the batter y remains connec - ted to [...]

  • Page 10

    6.8 Volt-/Amperemeter A 3-digit LC display (1) with toggle switch (2) is provided for measurement of the battery v oltage or the charging current. With the switch V/A at the front panel in position V, the battery vollage is shown. Likewise the charging current is shown with the switch in position A. 6.9 Temperature tracking The charging voltage req[...]

  • Page 11

    9. Approvals and standards - The charging units correspond to the following standards: EN 55014-2 Immunity requirements for household appliances, electric tools and similar electrical appliances EN 50082-1 Basic standard for interference rejection; living area, business areas as well as small enterprises EN 60065 Safety requirements for mains-opera[...]