Bosch PLN-24CH12 User manual

Battery Charger
PLN-24CH12 and PRS-48CH12
en Installation and Operation manual

Battery Charger Table of Contents | en 3
Bosch Security Systems B.V. Installation and Operation manual 180110011Aa | V1.1 | 2011.05
Table of Contents
1Safety 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
3SystemOverview 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

4en | Table of Contents Battery Charger
180110011Aa | V1.1 | 2011.05 Installation and Operation manual Bosch Security Systems B.V.
6.7.1 Mains power cable 24
6.7.2 Ground connection 24
7 Configuration 26
7.1 Battery charging 26
8Operation 27
8.1 Working principles 27
8.1.1 Battery test 27
8.1.2 Battery undervoltage protection 27
8.1.3 Charging 28
8.1.4 Battery temperature compensation 29
8.2 Commissioning the system 29
9Troubleshooting 30
10 Maintenance 31
11 Technical Data 32
11.1 Electrical 32
11.1.1 General 32
11.1.2 Fuses 32
11.2 Mechanical 33
11.3 Environmental conditions 33
11.4 Approvals and compliance with standards 33
11.4.1 Safety approvals 33
11.4.2 EMC approvals 33
11.4.3 Voice Alarm System related approvals 33

Battery Charger Safety | en 5
Bosch Security Systems B.V. Installation and Operation manual 180110011Aa | V1.1 | 2011.05
1Safety
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 qualified personnel.

6en | Short Information Battery Charger
180110011Aa | V1.1 | 2011.05 Installation and Operation manual Bosch Security Systems B.V.
2 Short Information
2.1 Purpose
The purpose of this Installation and Operation manual is to provide information required for
installing, configuring, operating, maintaining and troubleshooting the battery charger.
2.2 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.
2.3 Intended audience
These Installation and Operation instructions are intended for installers and users of the
battery charger.
2.4 Related documentation
Voice alarm system manual.
2.5 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.
DANGER!
Not observing the alert can lead to severe injuries or death.

Battery Charger Short Information | en 7
Bosch Security Systems B.V. Installation and Operation manual 180110011Aa | V1.1 | 2011.05
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.
Table 2.1 Conversion of units of length
Table 2.2 Conversion of units of mass
Table 2.3 Conversion of units of pressure
Table 2.4 Conversion of units of temperature
Imperial Metric Metric Imperial
1 in = 25.4 mm 1 mm = 0.03937 in
1 in = 2.54 cm 1 cm = 0.3937 in
1 ft = 0.3048 m 1 m = 3.281 ft
1 mi = 1.609 km 1 km = 0.622 mi
Imperial Metric Metric Imperial
1 lb = 0.4536 kg 1 kg = 2.2046 lb
Imperial Metric Metric Imperial
1 psi = 68.95 hPa 1 hPa = 0.0145 psi
NOTICE!
1 hPa = 1mbar.
Fahrenheit Celsius
°F = 9/5 (°C + 32) °C = 5/9 (°F - 32)

8en | System Overview Battery Charger
180110011Aa | V1.1 | 2011.05 Installation and Operation manual Bosch Security Systems B.V.
3 System Overview
3.1 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 microprocessor 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.
3.2 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.
3.3 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)

Battery Charger System Overview | en 9
Bosch Security Systems B.V. Installation and Operation manual 180110011Aa | V1.1 | 2011.05
3.4 Product view
3.4.1 Indicators on the front panel
Figure 3.1 Front view of battery charger
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 ).
Status LED Green Yellow
A Mains status OK - Mains voltage threshold <165 Vac ±5% (Auto
reconnect at >185 Vac ±5%).
- Primary fuse (F1) is blown.
- Power supply is broken.
- Internal battery charger temperature is too high
(>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: <23.5 Vdc ±3%
PRS-48CH12: <47,0 Vdc ±3%
- When the mains is present and the battery voltage
during start-up is:
PLN-24CH12: Vbat ≤ 14 Vdc, Vbat ≥ 30 Vdc (±3%)
PRS-48CH12: Vbat ≤ 40 Vdc, Vbat ≥ 60 Vdc (±3%)
- When battery is connected in reverse when
commisioning the system
C Output voltage status OK - No voltage on one or more output.
- Fuse (F8) broken.
A
B
C
xxV Battery Charger

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180110011Aa | V1.1 | 2011.05 Installation and Operation manual Bosch Security Systems B.V.
3.4.2 Connections on the rear panel
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 Auxiliary 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.).
1
7 8 9
23 456
A B
ED C F