IED Globalcom DNA7874L Manuale utente

IED GLOBALCOM

Installation Instructions

Digital Network 4ch Power Amplifier

DNA7874L / DNA7874H / DNA7814H

PAGE ii DOC1212B REV: 02-13

DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER INSTALLATION INSTRUCTIONS

If this document is distributed with software that includes an end user agreement, this document, as well as the software described

in it, is furnished under license and may be used or copied only in accordance with the terms of such license. Except as permit-

ted by any such license, no part of this document may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying, recording, storage in an information retrieval system, or otherwise, without the prior written

permission of Innovative Electronic Designs, LLC. Please note that the content in this guide is protected under copyright law even if

it is not distributed with software that includes an end user license agreement.

The content of this document is furnished for informational use only and is subject to change without notice. It should not be con-

strued as a commitment by Innovative Electronic Designs, LLC. Innovative Electronic Designs, LLC assumes no responsibility or

liability for any errors or inaccuracies that may appear in the informational content contained in this document.

Any reference to company names in examples are for demonstration purposes only and are not intended to refer to any actual

organization or an endorsement of any kind.

Innovative Electronic Designs, IED, GLOBALCOM, 500ACS, 500ACS Announcement Control System, CAS, Courtesy Announce-

ment System, T-CAS, FAS, Flight Announcement System, IED On Call, IED On Call & Design, and LANcom are all registered trade-

marks or trademarks of Innovative Electronic Designs, LLC in the United States and/or other countries.

CobraNet is a registered trade mark of Cirrus Logic in the United States and/or other countries.

Microsoft, Windows, Windows Vista, Windows 7, Windows Server, SQL Server, and Internet Explorer are all registered trademarks

or trademarks of Microsoft Corporation in the United States and/or other countries.

Innovative Electronic Designs, LLC

9701 Taylorsville Road

Louisville, KY 40299

United States of America

www.iedaudio.com

Document Number: 1212B

REV: 02-13 DOC1212B PAGE 1

INSTALLATION INSTRUCTIONS DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS ....................................................................................... 2

SAFETY SYMBOLS.............................................................................................................. 2

SAFETY CONSIDERATIONS ........................................................................................................ 3

SAFETY PRECAUTIONS ..................................................................................................... 3

GENERAL PRECAUTIONS .................................................................................................. 3

02-13 PRECAUTIONS.......................................................................................................... 3

PRECAUTIONS WHEN MEASURING HIGH VOLTAGE POTENTIALS................................ 4

PRECAUTIONS WHEN WORKING ON ENERGIZED EQUIPMENT.................................... 4

AC POWER CIRCUITS......................................................................................................... 4

RESUSCITATION ................................................................................................................. 5

DESCRIPTION .............................................................................................................................. 5

CONNECTIONS ............................................................................................................................ 6

DNA78x4 INSTALLATION........................................................................................................... 10

INSTALL UNIT INTO A RACK ............................................................................................ 10

CONNECT LOUDSPEAKERS............................................................................................ 11

CONNECT NETWORK CABLES........................................................................................ 11

OPTIONAL – CONNECT FAULT RELAY ............................................................................ 12

OPTIONAL - CONNECT AMBIENT SENSORS ................................................................. 13

CONNECT POWER PLUG................................................................................................. 14

COMPLETE UNIT CONFIGURATION................................................................................ 14

SPECIFICATIONS....................................................................................................................... 15

WARRANTY AND SERVICE........................................................................................................ 16

PAGE 2DOC1212B REV: 02-13

DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER INSTALLATION INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with

the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat

registers, stoves, or other apparatus (including amplifiers) that

produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-

type plug. A polarized plug has two blades with one wider than

the other. A grounding type plug has two blades and a third

grounding prong. The wide blade or the third prong is provided

for your safety. If the provided plug does not fit into your outlet,

consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched par-

ticularly at plugs, convenience receptacles, and the point where

they exit from the apparatus.

11. Only use attachments/accessories specified by the manufac-

turer.

12. Use only with the cart, stand, tripod, bracket,

or table specified by the manufacturer, or

sold with the apparatus. When a cart is used,

use caution when moving the cart/apparatus

combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or

when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Ser-

vicing is required when the apparatus has been dam-

aged in any way, such as power-supply cord or plug

is damaged, liquid has been spilled or objects have

fallen into the apparatus, the apparatus has been ex-

posed to rain or moisture, does not operate normally,

or has been dropped.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK

DO NOT REMOVE COVER (OR BACK)

NO USER SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain, moisture, dripping,

splashing, or place objects filled with liquids on the equipment.

WARNING: If apparatus is equipped with Class I grounding plugs for safety purposes, it must be connected to

MAINS that employ a protective earth ground connection.

WARNING: The MAINS plug on this device may be used as the DISCONNECT DEVICE for MAINS power and must

remain readily operable.

WARNING: Installation and maintenance of IED equipment is to be made by trained/qualified personnel and must

conform to all applicable local codes.

WARNING: If unit contains a lithium battery, there is a danger of explosion. Replace only with the same or equivalent

type.

SAFETY SYMBOLS

Labeling on products and the Installation Instructions & User Manual may use safety related graphical sym-

bols as shown below to note safety requirements.

Lightning Bolt: The lightning flash with arrowhead symbol, within an equilateral triangle, WARN-

ING symbol, is intended to alert the user to the presence of uninsulated dangerous voltage within

the product’s enclosure that may be sufficient in magnitude to constitute a risk of electric shock to

persons or domestic animals.

Exclamation Point: The exclamation point within an equilateral triangle, CAUTION symbol, is

intended to alert the user to the presence of important operating and maintenance (servicing)

instructions, or a hazard that can damage equipment.

Do not proceed beyond a WARNING or CAUTION notice until you have understood the hazardous condi-

tion and have taken appropriate steps.

Ne continuez pas avant d’avoir pris connaissance du danger et prendre les mesures appropriées.

REV: 02-13 DOC1212B PAGE 3

INSTALLATION INSTRUCTIONS DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER

SAFETY CONSIDERATIONS

SAFETY PRECAUTIONS

Personnel properly qualified in the application and use of life safety equipment (“qualified personnel”) shall

read this manual carefully before performing any actions to specify, apply, install, maintain and perform op-

erational tests of IED systems, and associated products in accordance with the instructions in this manual.

This manual shall be made available to all qualified personnel who operate, test, maintain, or service IED

systems, and associated products. It is strongly recommend that such personnel read and understand the

entire manual.

WARNING: IF SAFETY PRECAUTIONS, INSTALLATION AND TESTING ARE NOT PERFORMED PROP-

ERLY, CONDITIONS COULD EXIST IN WHICH THE IED SYSTEM MAY NOT OPERATE, OR MAY OPER-

ATE IMPROPERLY. THIS COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH

TO YOU AND/OR OTHERS.

It is very important that only responsible, trained personnel are allowed to operate and maintain these sys-

tems, and that they use only appropriate equipment and tools. If a person is not trained, they shall contact

the IED factory for direction on how to operate and maintain an IED system.

Unauthorized personnel and equipment must be restricted from the areas of operation.

All operations should be performed carefully, methodically, and without hurrying. Greater effectiveness will

be developed by increased familiarity of personnel with their assignments. During any maintenance opera-

tion, if a malfunction occurs or an incorrect indication appears, stop the operation and determine whether

or not it is safe to proceed. Before performing any step in a procedure, be sure that the preceding step has

been properly executed and correct results obtained. Cleanliness and good housekeeping in all installation

areas are major factors in effective accident prevention. Tools and equipment should be maintained in good

working order and should always be returned to their proper storage place after usage. Cleaning agents

and other cleaning aids should be removed from the equipment areas immediately upon completing the

task at hand.

GENERAL PRECAUTIONS

Changes, modifications, or additions in connection with the IED system equipment shall not be made with-

out explicit authorization of IED.

Safety devices found on mechanical, and electrical and electronic equipment are put there for the protec-

tion of personnel and equipment. These devices must be maintained in good working order and operative

at all times. Safety devices shall never be removed or bypassed unless specifically authorized by the IED

factory. Where safety devices have been rendered inoperable by proper and specific authorization, ad-

equate notices shall be posted to warn personnel of the potential hazard.

Avoid the use of flammable or toxic cleaning fluids, and the use of carbon tetrachloride is prohibited.

Maintenance of the equipment shall be at least what is specified in the IED manuals and literature, and

performed only by qualified personnel.

Whenever operation and maintenance is ongoing, personnel in the equipment areas shall have effective

communications among these areas in order to protect people if any accident occurs.

02-13 PRECAUTIONS

Precautions which are applicable to general electrical or electronic maintenance are as follows:

a. Check yourself. Wear no article that might catch on equipment or that might act as a conductor.

b. Check the working area. The equipment area shall be clean and dry. If possible, stand on a special

insulator such as a rubber mat. There should be ample working space and good lighting.

c. Check the tools. Always use proper tools and check them for their safe condition. Use screwdrivers

with plastic handles. Check test equipment periodically and examine test leads carefully as the slight-

est break in insulation is dangerous.

PAGE 4DOC1212B REV: 02-13

DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER INSTALLATION INSTRUCTIONS

d. Check the procedures. Study the entire procedure before taking the first step. Consult the circuit dia-

gram frequently to obtain an understanding of what is accomplished at each step. Know what is in the

equipment and how it differs from others on which you have worked.

e. Be aware that high voltages may be present across terminals that are normally low voltage, due to

equipment breakdown. Be careful when measuring low voltages in equipment containing high voltage

circuits.

f. Do not make resistance measurements with power on.

g. Do not work within the equipment without the presence of a person who is capable of rendering aid,

and who is familiar with the procedure for emergency shutdown of the equipment.

PRECAUTIONS WHEN MEASURING HIGH VOLTAGE POTENTIALS

Observe the following precautions when measurements must be performed on circuits with potentials over

48 volts.

a. Do not measure potentials over 48 volts without the presence or assistance of a person who is capable

of rendering aid, and who is familiar with the procedure for emergency shutdown of the equipment.

b. Be sure you are not grounded when you are adjusting equipment or using measuring equipment.

Stand on a rubber mat or other insulator if possible. Be sure the equipment area is clean and dry. In

general, use only one hand when servicing live equipment.

c. If a test meter must be held or adjusted while voltage is applied, ground the case of the meter before

starting a measurement. Do not touch the live equipment or personnel working on live equipment while

holding the meter. The “common” terminal on some A/C electronic voltmeters is at ground potential;

never connect the “common” terminal to any point above ground potential.

d. High-voltage, high-capacitance capacitors should be discharged before servicing is started.

WARNING! Discharging must be done carefully and judiciously. First ascertain whether there is a

built-in bleeder network. If so, wait a minute or two for the capacitor to discharge through the

network. Otherwise, use an external discharge network. This is most important in the case of high

voltage or high capacitance capacitors. If one terminal is connected to ground, connect the

discharge network between the other terminal and ground. If neither terminal of the capacitor is

grounded, connect the network across the capacitor terminals. Connecting a short circuit across

the terminals is not recommended. Doing so can produce extremely high currents and a flash

which can injure the eyes, vaporize metals, and cause burns.

PRECAUTIONS WHEN WORKING ON ENERGIZED EQUIPMENT

When it is necessary to work on energized equipment, think ahead and anticipate every hazard. Never work

alone on energized equipment.

Interlock switches are installed on some of the doors and panels to break the power circuits when the

enclosure is entered. When it is necessary to work within such an enclosure on energized equipment, the

interlock may be bypassed. Extreme caution should then be exercised, as dangerous voltages are present

within the unit.

AC POWER CIRCUITS

Equipment obtaining power from a secondary distribution system should be grounded at all times by

means of a third grounding wire on the power lines. Equipment permanently wired to a secondary distribu-

tion system should also be grounded separately by connection to a grounding bus or ground rod with a

sufficiently large conductor to handle the current expected if the secondary source is accidentally shorted

to the equipment.

The ground wire should be protected from mechanical damage and periodically inspected for good physi-

cal condition.

REV: 02-13 DOC1212B PAGE 5

INSTALLATION INSTRUCTIONS DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER

Personnel should never depend on a switch to remove power from equipment. If the equipment is connect-

ed to the secondary distribution system by means of a power cable, detach the cable from the receptacle

before attempting any repairs of removal of chassis.

If the equipment is permanently wired to the secondary distribution system, remove the main fuses or open

the power switch. Attach a suitable warning tag to the switch which will warn personnel not to operate the

equipment; only the person who originally attaches the warning tag should be authorized to remove it.

RESUSCITATION

Personnel working with or near high voltage should be familiar with modern methods of resuscitation. Such

information and training is available from the Red Cross or local emergency response personnel such as

the police and fire departments.

DESCRIPTION

The DNA78x4 series of amplifiers are an integral part of the IED GLOBALCOM Communications System,

allowing a few audio zones to be added where necessary when a full 16-zone T9160 amplifier frame is not

required. The amplifiers feature CobraNet®digital audio input and four channels of 200 watt amplification.

The DNA78x4 amplifiers are controlled with network commands for selecting input routing and configuring

EQ, delay, output levels, and ambient noise level compensation. Amplifiers may be controlled by a stand-

alone GLOBALCOM configuration utility or through the GLOBALCOM System Management Center.

The internal amplifier cards are Class D (switching mode) dual channel 200W amplifiers into the rated loads

(70.7 Volts into 25 ohms or 100 Volts into 50 ohms).

Class D operation, combined with an integral switching mode power supply, offers many advantages, and

the unique IED design makes full use of these benefits. They include higher efficiency, increased reliability,

improved performance, and lower operating cost. Switching mode operation combined with high voltage

power MOSFET devices make it possible to eliminate the heavy, costly, bulky transformers. IED’s design is

stable under all load conditions (phase angles of 0 to 360 degrees). The amplifier card has 34 dB of gain

from its analog input to the loudspeaker output. Attenuation is handled ahead of the power amplifier by

DSP controls through software.

Inputs are provided for connecting up to eight (8) 540S ambient noise sensors (2 sensors for each output

channel). This allows the output of each channel to be automatically adjusted in real time based on the

measured ambient noise level in the zone.

The power amplifier has built-in voltage limiting to protect the loudspeakers being driven. In addition, a

temperature sensor on the heatsink will automatically shut down an amplifier that becomes too hot, such as

due to cooling fan blockage or failure, so as to protect the electronics.

The DNA78x4 series amplifiers feature LED indicators for power, audio signals and fault status. A Form C

relay is also included that will indicate that a fault is present.

The DNA7874 amplifiers provide 200 watts per channel for 70.7 volt transformer-distributed loudspeaker

systems. The DNA7814 amplifier provides 200 watts per channel for 100 volt transformer-distributed loud-

speaker systems.

The model DNA7874L operates from a 120 VAC power source. The DNA7874H and DNA7814H models

operate from a 240 VAC power source.

DNA7874L 200W per channel (4 channels) with 70V outputs for 120VAC operation

DNA7874H 200W per channel (4 channels) with 70V outputs for 240VAC operation

DNA7814H 200W per channel (4 channels) with 100V outputs for 240VAC operation

PAGE 6DOC1212B REV: 02-13

DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER INSTALLATION INSTRUCTIONS

CONNECTIONS

PWR

AMP 1

ABPWR

AMP 2

Powered

onto

DNA

DIGITAL NET WORK AM PL IFIER TMP2 CRD2 GND-FLT FAN2 GF-2A GF-2B

TMP1 CRD1 TST-FLT FAN1 GF-1A GF-1B

2 3

Figure 1 - DNA78x4 Front View

PWR

AMP 1

ABPWR

AMP 2

Powered

onto

DNA

DIGITAL NET WORK AM PL IFIER TMP2 CRD2 GND-FLT FAN2 GF-2A GF-2B

TMP1 CRD1 TST-FLT FAN1 GF-1A GF-1B

98 8 101211

4 5 6 7

Figure 2 - DNA78x4 Rear View

PWR

AMP 1

ABPWR

AMP 2

Powered

Ponto

DNA

DIGITAL NET WORK AMPLIFIER TMP2 CRD2 GND-FLT FAN2 GF-2A GF-2B

TMP1 CRD1 TST-FLT FAN1 GF-1A GF-1B

14 16 18 20 22 25

13 15 17 19 21 23

Figure 3 - DNA78x4 CPU Status Panel

1. CPU Status Panel

This group of LEDs is used to display status information for the amplifier mainframe. Refer to Fig-

ure 3 for more detail.

REV: 02-13 DOC1212B PAGE 7

INSTALLATION INSTRUCTIONS DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER

2. Amplifier Card 1 Indicator

The device contains two separate internal power amplifier cards, each with two output channels.

This LED panel indicates the status of amplifier card 1.

AGreen – Indicates signal present on channel A (–39dBu)

Yellow – Indicates signal clipping on channel A (+5dBu)

BGreen – Indicates signal present on channel B (–39dBu)

Yellow – Indicates signal clipping on channel B (+5dBu)

PWR Illuminates to indicate that the card is powered on

3. Amplifier Card 2 Indicator

The device contains two separate internal power amplifier cards, each with two output channels.

This LED panel indicates the status of amplifier card 2.

AGreen – Indicates signal present on channel A (–39dBu)

Yellow – Indicates signal clipping on channel A (+5dBu)

BGreen – Indicates signal present on channel B (–39dBu)

Yellow – Indicates signal clipping on channel B (+5dBu)

PWR Illuminates to indicate that the card is powered on

4. Ethernet 1 (Primary)

This 100 Mbits/sec Ethernet LAN port is used to connect the control and digital audio channels of

the device to the network using a standard RJ45 connector. Two LEDs are provided to indicate the

status as shown in the table below.

This is the primary port and should be used in all applications.

Condition Left LED Right LED

Conductor Flashing Orange Flashing Green

Performer Solid Orange Flashing Green

Fault Flashing Orange Flashing Orange

5. Ethernet 2 (Secondary)

This 100 Mbits/sec Ethernet LAN port is used to connect the control and digital audio channels of

the device to the network using a standard RJ45 connector. Two LEDs are provided to indicate the

status as shown in the table below.

PAGE 8DOC1212B REV: 02-13

DNA78X4 DIGITAL NETWORK 4CH POWER AMPLIFIER INSTALLATION INSTRUCTIONS

This is the secondary port and should only be used in applications that utilize a redundant network

topology. It is critical that the primary and secondary Ethernet ports are never connected to the

same the same network or vLAN.

Condition Left LED Right LED

Conductor Flashing Orange Flashing Green

Performer Solid Orange Flashing Green

Fault Flashing Orange Flashing Orange

6. Fault Relay

This connector utilizes a 3-pin Phoenix plug with 3.8mm spacing to access the status of the fault

relay. The relay is energized when no fault condition is present and the contact is closed between

the NC and C terminals. The relay will de-energize when a power supply fault is present and the

contact is closed between the NO and C terminals.

Nominal switching capacity 1A 30 V DC, 0.3A 125 V AC (resistive load)

Max. switching power 30 W (DC), 37.5 V A (AC) (resistive load)

Max. switching voltage 110 V DC @ 0.27A, 125 V AC @ 0.3A

7. Ambient Sensor Inputs

These connectors utilize 3-pin Phoenix plugs with 3.88mm spacing to connect up to eight (8) 540S

ambient sensors. The following connections are required for each sensor.

V +27 VDC to power 540S sensor

IN Input signal from 540S sensor

GND Ground for 540S sensor

Up to two (2) sensors can be used to control each amplifier output channel. When two sensors are

used, the signals from both sensors are averaged to provide a signal to adjust the associated out-

put channel. Sensors must be configured and calibrated in the system software in order to operate

properly. Sensors are assigned to output channels as shown below.

Sensor

Input

Amplifier Channels

Controlled

1 and 2 1A

3 and 4 1B

5 and 6 2A

7 and 8 2B

8. Ground Terminal

This connection is provided for the shield if shielded speaker wire is used.

9. Amplifier Card 2 Outputs

This socket provides the outputs for both channels on amplifier card 2. Use the provided 4-pin

Phoenix plug to connect the loudspeaker lines to the device. Use stranded 2-conductor unshield-

ed wire of the appropriate gauge for loudspeaker connections.

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