Bosch PLN‑24CH12
Contents
1. 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Connection en 23 6 3 Connect the back up power The battery charger has six main screw terminals for connecting to the Voice Alarm System 1 Connect Load main to the plus terminal of the system components 2 Connect Load main to the minus terminal of the system components NOTICE Do not use the main outputs to connect remote control panels or volume overrides For this purpose use the auxiliary output terminals Refer to section 6 4 6 4 Connect the auxiliary power The battery charger has pluggable Euro style screw terminals for a 24 Vdc output PLN 24CH12 or 48 Vdc output PRS 48CH12 to supply power for e g Remote Control Panels RCP Volume overrides and general purposes The auxiliary output terminals are protected against short circuits by means of a fuse Faux1 to Faux3 NOTICE The auxiliary outputs are intended to power modules of the Voice Alarm System that do not have their own mains power supply The current drawn from these auxiliary outputs should be subtracted from the 12 A the charger can use to charge the battery E g if the total auxiliary current is 3 A the charger should be considered a 9 A charger when calculating back up requirements 6 5 Connect the output contacts The battery charger has three fail safe outputs on the rear panel for remote monito2. gt ee O DANGER Not observing the alert can lead to severe injuries or death 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Short Information en 7 2 6 Conversion tables In this manual SI units are used to express lengths masses temperatures etc These can be converted to non metric units using the following information Imperial Metric Metric Imperial 1Lin 25 4 mm 1mm 0 03937 in 1lin 2 54 cm 1 cm 0 3937 in 1 ft 0 3048 m im 3 281 ft 1 mi 1 609 km 1 km 0 622 mi Table 2 1 Conversion of units of length Imperial 1 Ib Metric 0 4536 kg Metric Imperial 1kg 2 2046 Ib Table 2 2 Conversion of units of mass Imperial 1 psi Metric 68 95 hPa Metric Imperial 1 hPa 0 0145 psi Table 2 3 Conversion of units of pressure NOTICE 1 hPa imbar Fahrenheit F 9 5 C 32 Celsius C 5 9 F 32 Table 2 4 Conversion of units of temperature Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 8 en System Overview Battery Charger 3 3 1 3 2 3 3 System Overview Application The PLN 24CH12 24 Vdc and the PRS 48CH12 48 Vdc battery charger is intended for a Voice Alarm System The battery chargers are microprocesso
3. Example for battery cables and 1 5 m in length and with a cross section of 10 mm the resistance is 6 mQ The connections should be realized properly in order to generate as low resistance as possible An additional battery fuse will add about 1 to 2 mQ 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Installation en 17 Battery Charger 5 2 Rack mounting The battery charger has to be installed in a 19 rack that complies to Class 3k5 of EN60721 3 3 1995 A2 1997 and IP30 of EN60529 1991 A1 2000 See Figure 5 2 Figure 5 2 Rack mounting CAUTION The openings provided in the cabinet must be kept free Do not create additional openings because this can cause the device to malfunction and voids the warranty 180110011Aa V1 1 2011 05 Bosch Security Systems B V Installation and Operation manual 18 en Installation Battery Charger 5 3 EN54 4 labeling Please affix the regarding label clearly visible on the cabinet after installation Bosch Security Systems B V Kapittelweg 10 4827 HG Breda The Netherlands Year in which the marking has been affixed 2011 0333 CPD 075381 1 EN 54 4 1997 A1 2002 A2 2006 Power Supply Equipment PLN 24CH12 Bosch Security Systems B V Kapittelweg 10 4827 HG Breda The Netherlands Year in which the marking has been affixed 2011 0333 CPD 075383 1 EN 54 4 1997 A1 20
4. NOTICE If the temperature sensor is not connected broken or has a short circuit the voltage is compensated for 25 C Refer to section 8 1 4 6 7 Connect the mains The battery charger is able to connect to 230 Vac 15 NOTICE Use a mains circuit breaker to connect or disconnect the battery charger from the mains 6 7 1 6 7 2 Mains power cable 1 Use the supplied lockable mains connector to assemble a locally approved mains cable 2 Connect the mains cable to the battery charger Ground connection CAUTION Make sure that the safety ground is connected to the battery charger via the mains power cable Pb OO OF CAUTION Do not make a separate ground connection to the battery 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Connection en 25 CAUTION Do not make a separate ground connection to the 24 Vdc or 48 Vdc output terminal The outputs have a common return Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 26 en Configuration Battery Charger 7 Configuration 7 1 Battery charging CAUTION If a mains failure occurs either on the battery charger the connected system or on both the system turns on back up operating mode mains not present condition an alarm must be generated on the Voice Alarm System In normal operating mode the battery c
5. power needed for a set amount of time Then multiply that by 20 percent to give a good buffer zone and to compensate for aging Proceed as follows 1 Determine the standby current of the system This information is available in the voice alarm system manual 2 Multiply the standby current by the standby time that the local standards call for Typically this is 24 hours 3 Compare this value to the 24 hour discharge capacity of the battery 4 Determine the evacuation current of the system This information is available in the voice alarm system manual 5 Multiply the evacuation current by the time that the local standards call for Typically this is one hour or 30 minutes 6 Compare this value to the 30 minute or 60 minute hour discharge capacity of the battery Amp hour capacity All batteries are rated in Amp hours An Amp hour is one A for one hour or 10 A for one tenth of an hour and so forth It is Amps x hours If you have something that draws 20 A and use it for 20 minutes then the amp hours used would be 20 A x 333 hours or 6 67 Ah The accepted Ah rating time period for batteries used in back up power systems and for nearly all deep cycle batteries is the 20 hour rate This means that it is discharged down to 10 5 V over a 20 hour period while the total actual amp hours it supplies is measured Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05
6. presence test is performed in the following manner The battery presence is tested every 30 seconds until 20 minutes after commissioning and every 15 minutes after If battery absence is detected a fault is generated refer to section 3 4 1 NOTICE If a fault is detected the test is performed every 30 seconds until 20 minutes after resolving the fault The Ri internal resistance is measured every 4 hours if the mains is present on the battery charger and if the output current is lt 12A If the Ri threshold level is exceeded a fault is generated refer to section 3 4 1 Refer to section 5 1 for Ri threshold levels 8 1 2 Battery undervoltage protection The voltage threshold V 4 is 21 6 Vdc 3 for PLN 24CH12 or 43 2 Vdc 3 for PRS 48CH12 Discharging when the mains power Vac is not present on the battery charger When discharging with the battery charger mains power Vac not present the battery charger will discharge the battery until Vfinai At Vfina the undervoltage protection becomes active the battery charger is switched off latching behavior and all outputs are shut down See Figure 8 1 Vfloat t Figure 8 1 Discharge battery voltage vs discharge time A Battery charger mains is off B Undervoltage Protection UVP active battery charger is switched off and all outputs are shut down Discharging when the mains power Vac is present When discharging with the battery charger mains powe
7. upper limit A battery that is continually cycled 5 or less will usually not last as long as one cycled down 10 This happens because at very shallow cycles the lead dioxide tends to build up in clumps on the positive plates rather than in an even film Figure 4 2 shows how the battery life is affected by the depth of discharge A 6000 Ei 5000 4 4000 4 3000 2000 4 1000 4 0 10 40 80 B Figure 4 2 Battery life based on depth of discharge A Number of cycles B Daily average depth of discharge in 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Planning information en 13 4 4 1 4 4 2 4 5 Battery manufacturers typically recommend that you never discharge a deep cycle battery below a certain percentage of its capacity Usually 50 to 80 is recommended The Vina value determines this see section 8 1 2 State of charge State of charge or conversely the depth of discharge can be determined by measuring the voltage and or the specific gravity of the acid with a hydrometer This will not tell you how good capacity in Ah the battery condition is Only a sustained load test can do that Voltage on a fully charged battery will read 2 12 V to 2 15 V per cell At 50 the reading will be 2 03 VpC Volts per Cell and at 0 the reading will be 1 75 VpC or less Specific gravity will be about 1 265 for a fully charged cell and 1 13
8. 02 A2 2006 Power Supply Equipment PRS 48CH12 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Connection en 19 6 Connection Figure 6 1 Block diagram of the battery charger Refer to table 6 1 Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 20 en Connection Battery Charger Figure 6 2 Top view PLN 24CH12 24 Vdc Refer to table 6 1 Figure 6 3 Top view PRS 48CH12 48 Vdc Refer to table 6 1 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Connection en 21 Indication Description Auxiliary output board Main output board Power and control board Fault status LEDs Temperature sensor connection Battery connection Batt and Batt Auxiliary output fuses Faux1 to Faux3 5 A Io 1 m O oO W Main output fuses F1 to F6 32 A Output contacts connection main battery and output voltage status Fan Daughter board Battery fuse breaker Not included Installed outside the battery charger Battery relay Mains fuse 6 3 A for PLN 24CH12 or 8 A for PRS 48CH12 Power supply fuse 12 5 A Table 6 1 Valid fo
9. 1 8 1 2 8 1 3 8 1 4 8 2 10 11 11 1 11 1 1 11 1 2 11 2 11 3 11 4 11 4 1 11 4 2 11 4 3 Mains power cable 24 Ground connection 24 Configuration 26 Battery charging 26 Operation 27 Working principles 27 Battery test 27 Battery undervoltage protection 27 Charging 28 Battery temperature compensation 29 Commissioning the system 29 Troubleshooting 30 Maintenance 31 Technical Data 32 Electrical 32 General 32 Fuses 32 Mechanical 33 Environmental conditions 33 Approvals and compliance with standards 33 Safety approvals 33 EMC approvals 33 Voice Alarm System related approvals 33 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Safety en 5 1 Safety Prior to installing or operating this product always read the Important Safety Instructions which are available as a separate document F 01U 120 759 These instructions are supplied together with all equipment that can be connected to the mains supply Safety precautions The battery charger is designed to be connected to the 230 Vac public distribution network To avoid any risk of electric shock all interventions must be carried out with disconnected mains supply upstream two pole circuit breaker open and disconnected battery Interventions with the equipment switched on are authorized only when it is impossible to switch the equipment off The operation must only be performed by qua
10. 12 en Planning information Battery Charger 4 3 Effects of discharge rate on battery capacity and battery life The rate at which a battery is discharged also has a profound effect on its capacity and life Figure 4 1 shows the effect of discharge rate on battery capacity The figure shows that a battery when discharged at a low rate will be able to deliver a higher capacity than a battery discharged at a high rate 120 A 110 100 90 80 70 60 50 40 0 5 07 1 0 20 3 0 4 05 0 7 0 100 B Figure 4 1 Capacity vs discharge rate A Battery capacity B Discharge time in hours 4 4 Depth of discharge DOD A battery cycle is one complete discharge and recharge cycle It is usually considered to be discharging from 100 to 20 and then back to 100 However there are often ratings for other depth of discharge cycles the most common ones are 10 20 and 50 Battery life is directly related to how deep the battery is cycled each time If a battery is discharged to 50 every day it will last about twice as long as when it is cycled to 80 DOD If cycled only 10 DOD it will last about five times as long as when it is cycled to 50 The most practical number to use is 50 DOD on a regular basis This does not mean that you can not go to 80 once in a while It is just that when designing a system when you have some idea of the loads you should figure on an average DOD of around 50 for the best storage versus cost factor Also there is an
11. 185 Vac 5 Primary fuse F1 is blown Power supply is broken Internal battery charger temperature is too high gt 65 C B Battery status OK The battery is not present The internal impedance Ri is too high see section 5 1 and 8 1 1 When the mains is present and the battery voltage during normal use is PLN 24CH12 lt 23 5 Vdc 3 PRS 48CH12 lt 47 0 Vdc 3 When the mains is present and the battery voltage during start up is PLN 24CH12 Vbat lt 14 Vdc Vbat 30 Vdc 3 PRS 48CH12 Vbat lt 40 Vdc Vbat gt 60 Vdc 3 When battery is connected in reverse when commisioning the system Output voltage status OK No voltage on one or more output Fuse F8 broken Fault signalling occurs with three LEDs at the front side as well as three fail safe outputs on the rear panel for remote monitoring refer to section 3 4 2 Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 10 en System Overview Battery Charger 3 4 2 Connections on the rear panel A B RELA Oo n 7Gl8 G9 oO Q p HEE este OO SH oO E F Figure 3 2 Rear view of battery charger A Mains power socket Socket for connecting the battery charger to the mains power The socket has a built in strain relief B Auxilia
12. 80110011Aa V1 1 2011 05 32 en Technical Data Battery Charger 11 Technical Data 11 1 Electrical 11 1 1 General Mains input voltage 195 264 Vac 47 63 Hz Power consumption at full load 380 W PLN 24CH12 Battery Charger Power consumption at full load 760 W PRS 48CH12 Battery Charger Maximum primary current at 195 V 2A PLN 24CH12 Battery Charger Maximum primary current at 195 V 4A PRS 48CH12 Battery Charger IEC protection class Class Neutral and earthing systems TT TN IT Mains circuit breaker Two pole mains circuit breaker D curve to be provided upstream Battery output 24 Vdc output 150 A battery screw terminals 48 Vdc output 150 A battery screw terminals Maximum charge current 12A Main outputs 6 main outputs with a maximum current of 40 A Auxiliary outputs 3 auxiliary outputs with a maximum current of 5 A Total output current main and 150 A max auxiliary Rated output current of battery charger 12 A this is the max current that can be sourced from the output without draining the batteries MTBF 200000 hours with external ambient temperature of 25 C nominal mains voltage 48 hours full charging 12 A year and for the rest of the time load of 3 A 11 1 2 Fuses Location Rating Type Breaking Size capacity F1 mother board mains 6 3 A for 24 Vdc Battery charger T 1500A 5x20 8 A for 48 Vdc Battery charger F1 to F6 main out
13. A 28 5 56 9 27 2 54 4 26 2 52 4 20 10 0 10 20 30 40 50 60 70 Temp Figure 8 4 Temperature compensation for Vfloat The temperature compensation for Vfloat is For PLN 24CH12 40 mV C 25 C For PRS 48CH12 80 mV C 25 C Commissioning the system NOTICE To avoid start up problems of the battery charger the main and auxiliary output current should be lt 12 A Use the following procedure to commission the system 1 Switch on the mains circuit breaker battery fuse breaker is off 2 Check the output voltage on the main and auxiliary outputs PLN 24CH12 27 3 Vdc PRS 48CH12 54 6 Vdc 3 Switch on the battery fuse breaker L Refer to table 6 1 After approx 2 5 seconds the battery relay is activated 4 The battery charger is operating correctly when the 3 LEDs on the front panel are green If not refer to the troubleshoot section 9 Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 30 en Troubleshooting Battery Charger 9 Troubleshooting Problem Cause Solution Battery charger does not start up when the mains Mains fuse is broken Check replace fuse F1 refer to table 6 1 is connected LEDs on battery charger are off Load on battery charger outputs is to high gt 12 A Disconnect load on the main and auxiliary outputs until load is lt 12 A When the batte
14. Battery Charger PLN 24CH12 and PRS 48CH12 BOSCH en Installation and Operation manual Battery Charger Table of Contents en 3 Table of Contents 1 Safety 5 2 Short Information 6 2 1 Purpose 6 2 2 Digital document 6 2 3 Intended audience 6 2 4 Related documentation 6 2 5 Alerts and notice signs 6 2 6 Conversion tables 7 3 System Overview 8 3 1 Application 8 3 2 Short description 8 3 3 Scope of delivery 8 3 4 Product view 9 3 4 1 Indicators on the front panel 9 3 4 2 Connections on the rear panel 10 4 Planning information 11 4 1 Overview 11 4 2 Amp hour capacity 11 4 3 Effects of discharge rate on battery capacity and battery life 12 4 4 Depth of discharge DOD 12 4 4 1 State of charge 13 4 4 2 False capacity 13 4 5 Temperature 13 4 6 Battery self discharging 14 4 7 Batteries 14 4 7 1 Flooded lead acid batteries 14 4 7 2 Sealed absorbed glass mat AGM batteries 14 4 7 3 Sealed gel cell 15 5 Installation 16 5 1 Battery jumper setting 16 5 2 Rack mounting 17 5 3 EN54 4 labeling 18 6 Connection 19 6 1 Connecting the battery 22 6 2 Connection specifications 22 6 3 Connect the back up power 23 6 4 Connect the auxiliary power 23 6 5 Connect the output contacts 23 6 6 Connect the temperature sensor 24 6 7 Connect the mains 24 Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 4 en Table of Contents Battery Charger 6 7 1 6 7 2 8 1 8 1
15. ce Alarm System related approvals EN54 4 1997 and amendment A2 February 2006 Fire detection and fire alarm systems Part 4 Power supply equipment CE CPD Numbers are 0333 CPD 075381 1 PLN 24CH12 and 0333 CPD 075383 1 PRS 48CH12 They have been affixed in 2011 EN 12101 10 class A January 2006 Smoke and heat control systems Part 10 power supplies Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 Bosch Security Systems B V Kapittelweg 10 4827 HG Breda The Netherlands www boschsecurity com Bosch Security Systems B V 2011
16. em with flat cable inside the battery charger Have qualified personnel check the flat cable between the front panel and the controller board Ensure that the battery charger was handled with care and without heavy bumps during transport 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Maintenance en 31 10 Maintenance The battery charger has been designed to function without problems for a long time with a minimum of maintenance In order to guarantee trouble free operation some cleaning and maintenance activities are required which are described in this section NOTICE Maintenance should be done by qualified personnel only DANGER Before removing and opening the battery charger housing make sure that Mains power circuit breaker is in the off position Battery fuse breaker is in the off position All connections are disconnected 1 Periodically check the batteries Refer to the specifications and instructions of the battery supplier 2 Periodically clean the battery charger with a dry non ragged cloth 3 Keep the fan and the air inlets free from dust WARNING Replacing the original battery with a battery of incorrect type may result in an explosion hazard Used batteries must be disposed of in compliance with recycling requirements Bosch Security Systems B V Installation and Operation manual 1
17. es is about two to three years Batteries Flooded lead acid batteries Flooded lead acid batteries have the longest track record in back up use and are still used in the majority of back up systems They have the longest life and the least cost per capacity In order to enjoy these advantages they require regular maintenance in the form of watering equalizing charges and keeping the top and the terminals clean Sealed absorbed glass mat AGM batteries AGM batteries are more and more used in back up systems as their price comes down and as more systems are getting installed that need to be maintenance free This makes them ideally suited for use as battery back up Because they are completely sealed they can not be spilled do not need periodic watering and emit no corrosive fumes The electrolyte will not stratify and no equalization charging is required AGM batteries are also well suited to systems that get infrequent use as they typically have less than a 2 self discharge rate during transport and storage They can also be transported easily and safely by air They can be mounted on their side or end and are extremely vibration resistant AGMs come in most popular battery sizes and are available in large 2 V cells for the ultimate in low maintenance large system storage in accordance with EN54 4 When first introduced because of their high cost AGMs were mostly used in commercial installations where maintenance was impossible or more expe
18. harger re charges the batteries and maintains them when they are fully charged The maximum current that can be provided to the main outputs and auxiliary outputs is Imax a In back up operating mode the total operating current is provided by the batteries and battery charger when mains present and may not exceed Imax b Imax a Maximum available current which may be drawn continuously while charging the battery Imax a 12 A Icharge Icharge C 20 C battery capacity Imax b Maximum allowed current which may be drawn from the batteries when the mains supply is not available on one or more of the system units Imax b 150 A if the jumper is set on 75 Imax b 100 A if the jumper is set on 50 see Figure 5 1 Authorized batteries If Imax b is greater than 100 A use batteries with a capacity of 86 Ah to 225 Ah and set daughter board jumper on 75 see Figure 5 1 If Imax b is less than 100 A use batteries with a capacity of 65 Ah to 225 Ah and set daughter board jumper on 50 see Figure 5 1 The following batteries are approved Yuasa NPL series Powersonic GB series ABT TM series Enersys VE series Effekta BTL series Long GB series 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Operation en 27 8 Operation 8 1 Working principles 8 1 1 Battery test The battery
19. istance measurement Ri of the battery including connections and battery fuse if the total output current main plus auxiliary is lt 12 A For each battery charger type a jumper is located at the daughter board to set trigger thresholds for the resistance and allowed discharge current Figure 5 1 Location of the battery jumper of the PLN 24CH12 similar location for the PRS 48CH12 Jumper setting Voltage Threshold Ri Battery capacity Max allowed discharge current 75 factory default 24 Vdc 13 mQ 10 86 to 225 Ah 150A 48 Vdc 26mQ 10 86 to 225 Ah 150A 50 24 Vdc 20mQ 10 65 to 225 Ah 100A 48 Vdc 40mQ 10 65 to 225 Ah 100A The jumper is set on the 75 position as factory setting Any other position of the jumper is equal to the 50 position Exceeding the Ri thresholds is signalled as a battery fault see section 3 4 1 and means that the battery charger with its associated battery will not have the required back up duration in case of mains failure To avoid initiating this fault take care of the following Use authorized batteries see Section 7 Configuration Use short battery cables with a diameter as large as possible 35 mm max For a cross section of 10 mmz2 the resistance is 2 mMQ m For a cross section of 16 mm the resistance is 1 25 mQ m For a cross section of 25 mm the resistance is 0 8 mQ m For a cross section of 35 mmz2 the resistance is 0 6 mQ m
20. lified personnel Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 6 en Short Information Battery Charger 2 1 2 2 2 3 2 4 2 5 Short Information Purpose The purpose of this Installation and Operation manual is to provide information required for installing configuring operating maintaining and troubleshooting the battery charger Digital document This Installation and Operation manual is also available as a digital document in the Adobe Portable Document Format PDF Refer to the product related information on www boschsecuritysystems com Intended audience These Installation and Operation instructions are intended for installers and users of the battery charger Related documentation Voice alarm system manual Alerts and notice signs Four types of alerts are used in this manual The alert type is closely related to the effect that may be caused if it is not observed These alerts from least severe effect to most severe effect are NOTICE Alert containing additional information Usually not observing a notice does not result in damage to the equipment or personal injuries CAUTION The equipment or the property can be damaged or persons can be lightly injured if the alert is not observed WARNING The equipment or the property can be seriously damaged or persons can be severely injured if the alert is not observed
21. nsive than the price of the batteries 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Planning information en 15 4 7 3 Sealed gel cell Gelled lead acid batteries predate the AGM batteries but are losing to AGM They have many of the same advantages over flooded lead acid batteries including ease of transportation as the AGM type except the gelled electrolyte in these batteries is highly viscous and recombination of the gases generated while charging occurs at a much slower rate This means that these batteries typically have to be charged slower than either flooded lead acid or AGM batteries In an emergency sound system you have a fixed amount of hours to charge the batteries from the EN54 4 If charged at too high a rate gas pockets form on the plates and force the gelled electrolyte away from the plates decreasing the capacity until the gas finds its way to the top of the battery and is recombined with the electrolyte For use in a system where discharge rates are less than severe gel batteries could be a good choice Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 16 en Installation Battery Charger 5 5 1 Installation Before installing the battery charger into the 19 rack the battery jumper setting must be carried out Battery jumper setting The battery charger takes every 4 hours a res
22. or less for a totally discharged cell This can vary with battery types and brands somewhat When you buy new batteries you should charge them up and let them sit for a while then take a reference measurement Many batteries are sealed and hydrometer readings can not be taken Then you must rely on voltage Hydrometer readings may not tell the whole story as it takes a while for the acid to get mixed up in wet cells If measured right after charging you might see 1 27 at the top of the cell even though it is much less at the bottom This does not apply to gelled or absorbed glass mat AGM batteries see section 4 7 2 False capacity A battery can meet the voltage tests for being at full charge yet be much lower than it s original capacity If plates are damaged sulfated or partially gone from long use the battery may give the appearance of being fully charged but in reality acts like a battery of much smaller size This same thing can occur in gelled cells if they are overcharged and gaps or bubbles occur in the gel What is left of the plates may be fully functional but with only 20 of the plates left Batteries usually go bad for other reasons before reaching this point but it is something to be aware of if your batteries seem to test OK but lack capacity and go dead very quickly under load Temperature Battery life and battery capacity are affected by temperature Batteries perform best in moderate temperatures Battery capacit
23. put 32 A gG 10x38 board 6 outputs Faux1 to Faux3 auxiliary 5A F 5x20 output board 3 outputs External battery fuse Recommended fuse 100 A gG breaker not fitted with Please check local standards for battery charger max fuse rating 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Technical Data en 33 11 2 11 3 11 4 11 4 1 11 4 2 11 4 3 Mechanical Dimensions h x w x d 44 5 x 483 x 310 mm 19 wide 2RU high Weight approx 6 kg Environmental conditions Operating temperature range 5 to 45 C Storage temperature range 25 to 85 C Altitude Under 76 kPa the max operating temperature decreases of 5 C every 10 kPa Cooling operates transversely Relative humidity Operating and non 20 95 without condensation Operating Make sure that the battery charger is not exposed to sources of water or to water splashes Approvals and compliance with standards This product is compliant with LV and EMC directives immunity and emission Safety approvals C Tick Australia CE Europe EMC approvals EN50130 4 1995 A1 1998 A2 2003 Alarm systems Immunity requirements for components of fire intruder and social alarm systems EN60950 1 2006 EN61000 6 1 2007 EN61000 6 2 2006 EN61000 6 3 2007 EN61000 6 4 2007 and EN 55022 class B 2007 Voi
24. r Vac present the following applies for the main output Below 12 A the battery charger will supply the output voltage on the main and the auxiliary outputs The battery is not drained Above 12 A the battery charger will supply 12 A to the system The battery supplies the rest and is drained until Vina At Vfinal the undervoltage protection becomes active the Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 28 en Operation Battery Charger battery charger is switched off non latching behavior and all outputs are shut down See Figure 8 1 When the load is decreased below 12 A the battery charger is switch on and connects the battery again to start the charging process 8 1 3 Charging Figure 8 2 and Figure 8 3 show the charger voltage and the charge current versus the time during the charging process Vbatt Figure 8 2 Charger voltage vs time A Bulk mode B Float mode Ibat Figure 8 3 Charge current vs time A Bulk mode in this mode the current is controlled B Float mode 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Operation en 29 8 1 4 8 2 Battery temperature compensation The battery charger has battery temperature compensation The temperature is measured by the external temperature sensor see section 6 6 Viloat
25. r based devices that have been designed to charge lead acid batteries back up batteries connected to the Voice Alarm System and simultaneously to provide power to auxiliary applications Short description The battery charger which is fully compliant with EN54 4 offers a maximum charge current of 12 A The battery charger is two rack units 2 RU high and has to be installed in a 19 rack Scope of delivery The battery charger is packed with the following parts 1x Installation and Operation manual 1x Safety instructions 1x Mains plug lockable 6x Main output connector 3x Auxiliary output connector 1x Contact output connector 1x Temperature sensor connector 1x Temperature sensor 1x Main output fuse 32 A 1x Auxiliary output fuse 5 A 1x Mains fuse 6 3 A for PLN 24CH12 or 8 A for PRS 48CH12 1x Power supply fuse 12 5 A 2x Binding strip to connect the temperature sensor to the battery cable 4x Screw for mounting the battery charger into a 19 rack 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger System Overview en 9 3 4 Product view 3 4 1 Indicators on the front panel O xxV Battery Charger O ANa B amp cr O O Figure 3 1 Front view of battery charger Status LED Green Yellow A Mains status OK Mains voltage threshold lt 165 Vac 5 Auto reconnect at gt
26. r figure 6 1 6 2 and 6 3 Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 22 en Connection Battery Charger 6 1 Connecting the battery CAUTION For the PLN 24CH12 Battery Charger the total sum of the batteries must be equal to 24 Vdc For the PRS 48CH12 Battery Charger the total sum of the batteries must be equal to 48 Vdc When connecting multiple batteries observe the following Only use batteries of the same voltage capacity type brand and age Always connect the batteries in series Figure 6 4 shows an example of connecting four 12 Vdc batteries to the PRS 48CH12 Battery Charger Always check the relevant standards for details on connecting multiple batteries Always use a battery fuse breaker L as close as possible to the battery The battery charger has two screw terminals for connecting the battery 1 Be sure that the battery fuse breaker L is in the off position 2 Connect Batt to the plus terminal of the battery 3 Connect Batt to the minus terminal of the battery Figure 6 4 Connect multiple batteries in series for PLN 48CH12 48 Vdc battery charger 6 2 Connection specifications The connectors will accept the following cross sections Refer to section 3 4 2 Mains plug 2 5 mm Battery terminal 50 mm Main outputs F1 to F6 16 mm Auxiliary outputs Faux1 to Faux3 2 5 mm Contact outputs 1 5 mm
27. ring Each output has three terminals Normally Closed NC Common C and Normally Open NO Connection is done via a 9 pins pluggable screw terminal connector Refer to Table 6 2 for contact status See section 3 4 1 for LED status indicators Os G Oo OO z 22 2 2 Z N ES TS pe A 0 Figure 6 5 Output contacts Status LED Output contact Green Yellow A Mains status C NO C NC B Battery status C NO C NC Cc Output voltage status C NO C NC Table 6 2 Output contact status vs LED indication Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 24 en Connection Battery Charger 6 6 Connect the temperature sensor The battery charger has one socket to connect the temperature sensor which is packed with the system 1 Plug the temperature sensor into the temperature sensor socket 2 Attach the sensor body close to the battery with good thermal coupling in order to get the correct temperature information E g connect the sensor to the battery tray or place it between the batteries See Figure 6 6 Figure 6 6 Connect the temperature sensor CAUTION Applied charging voltages and current are temperature dependant Therefore always use the temperature sensor If the temperature sensor is not used or not used correctly this can damage the battery or reduce the lifetime of the battery Refer to section 8 1 4
28. ry charger is switched on it doesn t start charging The battery relay is not switched on Battery status LED is yellow Voltage of the battery is not between 14 V and 30 V for PLN 24CH12 or 40 V and 60 V for PRS 48CH12 Check voltage on the battery terminal When the battery voltage is not between the specified values solve the problem No back up power when battery charger mains is connected Battery status and Output status LED is yellow Probably fuse F8 is broken because of a reversed battery connection when battery relay was already switched on Disconnect the battery and the mains power from battery charger Check replace fuse F8 Main and Auxiliary fuses No backup power on one or more outputs main or auxiliary status LED is yellow On or more main or auxiliary output fuses are broken Check the voltage of the main and auxiliary outputs The measured voltage should be equal to the battery terminal voltage Replace the regarding fuse refer to table 6 1 Mains status LED remains yellow Refer to section 3 4 1 Battery status LED Refer to section 3 4 1 remains yellow Battery is connected in reverse Check battery polarity on battery terminals When connected in reverse solve the problem Output voltage status LED remains yellow Refer to section 3 4 1 Indicator lights are not illuminated while battery charger is working correctly Probl
29. ry output terminals Three terminals for connecting auxiliary outputs 5 A max to power modules of the Voice Alarm System that do not have mains power inputs The outputs are protected by a fuse Faux1 to Faux3 C Temperature sensor socket Socket to connect the temperature sensor see section 6 6 D Main output terminals Six output terminals to connect to the back up power terminals of VAS equipment 40 A max The outputs are protected by a fuse F1 to F6 E Output contacts Fail safe dry contact three pole SPDT switch C NC NO allowing 1A at 24 Vdc or 0 5 A at 120 Vac Mains status 5 sec of delay after mains fault Battery status Output voltage status F Battery terminal Terminal for connecting the battery leads 150 A max 180110011Aa V1 1 2011 05 Installation and Operation manual Bosch Security Systems B V Battery Charger Planning information en 11 4 4 1 4 2 Planning information Overview To find the right power back up system for your needs you will need to determine the exact conditions under which you will be utilizing a back up system Determining the amount of battery back up you need for a system is not as simple as some other applications Public address systems do not draw a constant current The standard defines a standby time and an evacuation time In this case it is important to pick a battery back up that can supply the minimum amount of
30. y banks make up a large thermal mass Thermal mass means that because they have so much mass they will change internal temperature much slower than the surrounding air temperature For this reason the external temperature sensor see section 6 6 should be attached in thermal contact with the battery The sensor will then read very close to the actual internal battery temperature Battery self discharging All lead acid batteries supply about 2 14 V per cell when fully charged Batteries that are stored for long periods will eventually lose all their charge This leakage or self discharge varies considerably with battery type age and temperature batteries self discharge faster at higher temperatures It can range from about 1 to 15 per month Generally new AGM batteries have the lowest and old industrial lead antimony plates have the highest self discharge In systems that are continually connected to some type of charging source like the Bosch Battery Charger this is not a problem However one of the biggest killers of batteries is sitting stored in a partly discharged state for a few months like before commissioning A float charge should be maintained on the batteries even if they are not used or especially if they are not used Even most dry charged batteries those sold without electrolyte so they can be shipped more easily with acid added later will deteriorate over time The maximum storage life of these batteri
31. y is reduced as temperature goes down and increased as temperature goes up This is why a car battery dies on a cold winter morning even though it worked fine the previous afternoon If the batteries are installed in an unheated part of a building the reduced capacity has to be taken into account when sizing the system batteries The standard rating for batteries is at room temperature 25 C about 77 F At freezing capacity is reduced by 20 At approximately 27 C battery capacity drops to 50 Capacity is increased at higher temperatures At 50 C the battery capacity will be about 12 higher Even though battery capacity at high temperatures is higher battery life is shortened Battery capacity is reduced by 50 at 27 C but battery life increases by about 60 Battery life is reduced at higher temperatures for every 10 C above 25 C battery life is cut in half This holds true for any type of lead acid battery whether sealed gelled AGM industrial etc The battery charging voltage also changes with temperature It will vary from about 2 74 V per cell at 40 C to 2 3 V per cell at 50 C This is why temperature compensation see section 8 1 4 on your battery charger must always be enabled except for testing maintenance etc Bosch Security Systems B V Installation and Operation manual 180110011Aa V1 1 2011 05 14 en Planning information Battery Charger 4 6 4 7 4 7 1 4 7 2 Large batter
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