Dynacord DEM 317, DEM 316 User Manual

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

2.1 Battery module DEM 316/DEM 317

2.2 Battery module DEM 317 A and DEM 317 B

2.3 Fusing the inputs and outputs

2.4 BATTERY CONTROL connection

2.5 Connection for battery charging

3. Notes for the user

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

3.2 Regulations for battery use

3.3 Storage and additional charging

3.4 Transport

3.5 Battery life

3.6 Battery 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

6 to 15

16 to 30

Module type

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

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

0.8

0.7

0.5

Current consumption at Ebat = 24 V
Standby rated power rated power

-10 dB wert

10 mA
10 mA
10 mA

2.5 A

3.5 A
7 A

5.7 A

10.6 A

19.7 A

Fuse value

7.5 A
10 A
20 A

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
type

DEM 316
DEM 317

* 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.

I max
in A

100
150

Table II Maximum currents and number of power amplifiers

max. number of power amplifiers*
DEM 287 DEM 288 DEM 289

17
25

9
13

5
7