Dynacord DEM 317, DEM 316 User Manual

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ELA-MODULE-SYSTEM

OWNER’S MANUAL

DEM 316 Batterie-MODULE 24 V / 38 Ah

DEM 317 Batterie-MODULE 24 V / 65 Ah

Features of the battery modules

19 “ drawer-type chassis with 3 HU, 4 HU and 2x4 HU

Rated voltage 24 V

Energy storage

completely maintenance-free, universal-location lead batteries with grid plates and fixed electrolyte, suitable for cycle operation, continuous battery power supply and trickle charge.

Exhaustive discharge protection relay controlled by DEM 313 charger

Charging input and battery outputs via AMP flat pin terminals 6.3 x 0.8 mm charging input and all battery outputs fused.

Temperature tracking of charging voltage at standby charge depending on the battery temperature with integrated temperature sensor.

Batteries with VdS-registration and UL recognition.

The technical specifications comply with the requirements issued by the “Leistungsgemeinschaft Beschallungstechnik”, pertaining to the professional association for audio and video technology in the ZVEI.

Table of Contents

1.Emergency power supply of alarm apparatus

2.Commissioning the battery module

2.1Battery module DEM 316/DEM 317

2.2Battery module DEM 317 A and DEM 317 B

2.3Fusing the inputs and outputs

2.4BATTERY CONTROL connection

2.5Connection for battery charging

3.Notes for the user

3.1Use of the battery is to be avoided in the following locations

3.2Regulations for battery use

3.3Storage and additional charging

3.4Transport

3.5Battery life

3.6Battery recycling

4.Registrations and Standards

5.Testing and inspecting alarm devices

6.Explanation of terms

7.Specifications Battery Modules DEM 316 / DEM 317

8.Block Diagram

1. Emergency power supply of alarm devices

Alarm devices require 2 independent energy sources, both of which must be able to power the alarm device alone. One of the energy sources must be the general mains supply or a similar network in non-stop operation. The other must be part of the apparatus (e.g. a battery) or an equivalent network fused separately. If the mains power supply is interrupted, the second source of energy must guarantee constant non-stop operation automatically and without interruption. If the energy source belonging to the alarm device consists of a battery, the user must ensure that the batteries used are suitable for stationary and floating operation. The power supply for alarm devices must not be used to supply other apparatus or parts. However, electrical equipment which serves to pass on messages may also be powered by the said source. An automatic charging device is required to charge and maintain the battery. It must be able to charge a battery which is discharged to its discharge voltage up to 80% max. of its rated capacity within 24 hours. The battery capacity must be sufficient to guarantee the fixed alarm duration at the end of the stored energy time. When selecting new batteries, the user should make sure that their capacity is sufficient to compensate the capacity loss due to natural ageing of the batteries during the prescribed service life.

2. Commissioning the battery module

2.1 Battery module DEM 316/DEM 317

The following points must be observed:

The battery may only be connected to the charging apparatus without load (i.e. all types of consumers must be disconnected) and when the mains is switched OFF.

The battery must be charged directly after discharging. The battery must not be left uncharged. It becomes impossible to maintain a charge if the battery is left uncharged for any length of time.

Please ensure that the temperature inside the rack is always within the admissible temperature range specified in the data sheet.

2.2 Battery module DEM 317 A and DEM 317 B

The following points must be observed:

The insulated screw terminals on the rear side of the battery module DEM 317 are directly connected to the battery poles and are live.

Before removing the insulating caps, all the connections of the battery modules DEM 317A and DEM 317B are to be disconnected.

When connecting the cables, the insulating caps on the battery poles should never be removed at the same time because this could cause a short. After the cables have been connected they should be replaced immediately.

The cables between the battery modules DEM 317A and DEM 317B connect the pole B+ with B+, M with M and B- with B-. When connecting the cables, the lock washer is to be mounted between the cable lug and the nut to secure the screw.

2.3 Fusing the inputs and outputs

The batteries have individually fused outputs for the load connections. Thus all plus and minus lines are protected against excess currect and short. Different line cross-sections for consumers with low and high current can be connected to a battery at the same time, providing that the fuse values of their individual outputs are chosen accordingly. The maximum value of the fuses must not, however, exceed 20 A.

The total amount of the currents of all the output fuses in a fuse block must not exceed 50 A.

If the fuse values are changed, the current values printed on the units above the fuse switch are to be covered with the enclosed sticky labels. The fuse values for the appropriate plus and minus outputs must always be the same.

If any outputs are not used, the fuses are to be removed and and fuse values above the fuse switches are to be covered over with the enclosed blank sticky labels.

The output secured with 3 A is intended for connection of the control module DEM 207.

The cross-sections of the lines connected must be correctly dimensioned for the fuse value selected. Please note that lines laid in cable channels have a lower permissible current loading due to lower heat dissipation.

The following are guidelines for bundled lines

Number of lines

Reduction factor

2 to 5

0.8

6 to 15

0.7

16 to 30

0.5

Module type

DEM 287 power amp. 125 W DEM 288 power amp. 250 W DEM 289 power amp. 400 W with NRS 90 144

Current consumption at Ebat = 24 V

Standby rated power rated power Fuse value -10 dB wert

10 mA

2.5 A

5.7 A

7.5 A

10 mA

3.5 A

10.6 A

10 A

10 mA

7 A

19.7 A

20 A

Table I Fuse values of the battery outputs for connection of power amplifiers

Dynacord DEM 317, DEM 316 User Manual

Table II shows the maximum currents which can be drawn from the batteries. These must not be exceeded. This gives the maximum number of power amplifiers which can be powered by the batteries.

Battery

I max

max. number of power amplifiers*

 

type

in A

DEM 287

DEM 288

DEM 289

DEM 316

100

17

9

5

DEM 317

150

25

13

7

Table II Maximum currents and number of power amplifiers

* The number of power amplifiers which can be directly connected to the battery drawers can be lower than the values specified in Table II (see number of outputs, section 8, specifications). The values specified in the Table only refer to the connection of one amplifier type to one battery type. As long as the maximum current drawn is observed, however, various types of amplifier can be supplied by one type of battery.

Circuit diagram of the battery connection to the charging device.

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