Stand-by power supply for audio door entry system with simplified cabling (4 pages)
Summary of Contents for Comelit EN54C Series
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USER MANUAL Edition: 5 from 21.12.2022 Supersedes edition: 4 from 08.07.2021 Power supplies EN54C series v.1.1 Power supplies for fire alarm systems and smoke and heat control systems.
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GENERAL SAFETY RULES Before installation, read the instruction manual to avoid errors that can damage the device and give you an electric shock. Before installation, cut off the voltage in the 230 V power-supply circuit. To switch power off, use an external switch, in which the distance between the contacts of all poles in the disconnection state is not less than 3 mm.
TABLE OF CONTENTS 1. PSU FEATURES............................. 4 2. FUNCTIONAL REQUIREMENTS OF THE PSU................4 3. TECHNICAL DESCRIPTION......................5 3.1. G ................................ 5 ENERAL DESCRIPTION 3.2. B ................................. 5 LOCK DIAGRAM 3.3. D ..................6 ESCRIPTION OF COMPONENTS AND POWER SUPPLY TERMINALS 4.
- EN 54-4:1997+AC:1999+A1:2002+A2:2006 Fire detection and fire alarm systems - EN 12101-10:2005+AC:2007 Smoke and heat control systems Requirements Power supplies Functional requirements according to EN54C series standards Two independent power sources EPS network failure indication Two independent power supply outputs protected against short circuits...
3. Technical description. 3.1. General description. The buffer power supplies has been designed for an uninterrupted supply of fire alarm systems, smoke and heat control systems, fire protection equipment and fire automatics requiring stabilized voltage of 24 V DC (±15%). The power supplies are fitted with two independently protected AUX1 and AUX2 outputs, which provide a voltage of 27,6 V DC and the total current efficiency depending on the version: Power supply model Battery...
3.3. Description of components and power supply terminals. Table 1. Elements of the PSU (Fig. 2). Compone Description nt No. 230 V supply connector with a terminal for connection of a protective conductor Terminals: – input of the battery temperature sensor TEMP TAMPER –...
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Table 2. Elements of the PSU (Fig. 3). Component Description PSU (Tab. 1, Fig. 2) Battery temperature sensor Battery connectors; positive: +BAT = red, negative: - BAT = black A place for installation of additional modules TAMPER; microswitch (contacts) of antisabotage protection (NC) Fitting battery Embossing for cable gland Embossings for concealed wires...
4. Installation. 4.1. Requirements. PSU is to be mounted by a qualified installer, holding relevant permits and licenses (applicable and required for a given country) to connect (interfere) with ~230 V mains supply. As the power supply is designed for a continuous operation and is not equipped with a power- switch, therefore, an appropriate overload protection in the power supply circuit should be provided.
4.2. Installation procedure. CAUTION! Before installation, cut off the voltage in 230 V AC power-supply circuit. To switch power off, use an external switch, in which distance between contacts of all poles in disconnection state is not less than 3 mm. It is required to install an installation switch with a nominal current of 6 A in the power supply circuits outside the power supply unit.
4.3. Procedure for checking the power supply at the place of installation. 1. Check indication displayed on front panel of power supply unit: a) 230 V AC LED should remain lit to indicate presence of mains supply voltage. b) AUX LED should remain lit to indicate the presence of supply voltage.
5. Functions 5.1. Control Panel. The PSU is equipped with a LED panel allowing checking the current status of the power supply. Fig. 6. Control panel. Table 3. The description of the buttons and LEDs of the LCD panel. - green LED indicating 230 V voltage - green LED AUX indicating power at the AUX1 and AUX2 output of the PSU - yellow LED ALARM indicating collective failure ALARM LED flashes specified number of times to indicate failure code according to table below.
5.2. Technical outputs. The power supply is fitted with relay indication outputs changing state upon the occurrence of a specific event. Fig. 7. Electrical diagram of relay outputs. EPS - output indicating 230 V power loss. The output indicates 230 V power loss. Under normal status – with the 230 V supply on, the output is closed.
5.3. Input of collective failure: EXTi. The EXT IN (external input) technical input indicating collective failure is intended for additional, external devices that generate the failure signal. Disconnection of the EXTi terminals will cause a failure of the PSU and generate a failure signal at the ALARM output.
6. Reserve power supply circuit. The PSU is fitted with intelligent circuits: battery charging circuit with the function of the accelerated charging and battery control, which main task is to monitor the condition of the batteries and the connections in the circuit.
Fig. 14. Mounting of the temperature sensor. The nominal battery operating temperature recommended by many manufacturers is 25°C. Working at elevated temperatures will significantly shorten the battery lifetime. The service life is reduced by half for each sustained temperature rise of 8°C above the nominal temperature. This means that the battery lifespan, when operated at 33°C, can be decreased by 50%! 6.8.
7. Technical parameters. Electrical parameters (Table 5). Mechanical parameters (Table 6). Safety of use (Table 7). Operation parameters (Table 8). Recommended types and sections of installation cables (Table 9). Table 5. Electrical parameters. EN54C-2A17 EN54C-5A17 Functional class EN 12101-10:2005 +AC:2007 Mains supply ~230 V Current consumption...
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F5 A F10 A Battery circuit protection SCP and reverse polarity connection melting fuse (failure requires fuse replacement) U<20 V (± 2%) – disconnection of the batteries Deep discharge battery protection UVP Tamper indicating enclosure opening Micro-switch TAMPER - relay type: 1 A@ 30 V DC / 50 V AC Technical outputs: - 10s time lag.
8. Technical inspections and maintenance. Technical inspections and maintenance can be performed after disconnecting the power supply from the power network. The PSU does not require any specific maintenance, however, its interior should be cleaned with compressed air if it is used in dusty conditions. In case of fuse replacement, use only compatible replacement parts.
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