Electro-Voice Precision P1200RL Bedienungsanleitung

OWNER‘S MANUAL

BEDIENUNGSANLEITUNG

CONTENTS

IMPORTANT SAFETY INSTRUCTIONS

.......................

IMPORTANT SERVICE INSTRUCTIONS

.......................

DESCRIPTION

.......................

UNPACKING & WARRANTY

.......................

INSTALLATION NOTES

.......................

FRONT VIEW

.......................

REAR VIEW

.......................

INPUT A / INPUT B

.......................

PARALLEL CONNECTION

.......................

DSP OUT

.......................

CONTROL PORT

.......................

RS-232 INTERFACE

.......................

ADDRESS

.......................

REMOTE CAN-BUS

.......................

EASY REMOTE

.......................

POWER AMP OUTPUT

.......................

OUTPUT VOLTAGE CONFIGURATION

.......................

GROUND-LIFT SWITCH

.......................

MAINS INPUT

.......................

CABLING

.......................

LF-CONNECTION CORDS

.......................

REMOTE CONTROL NETWORK

.......................

NETWORK EXAMPLES

.......................

CAN-BUS

.......................

MAINS OPERATION & RESULTING TEMP

.......................

SPECIFICATIONS / TECHNISCHE DATEN

.......................

BLOCK DIAGRAM AMPLIFIER

.......................

BLOCK DIAGRAM RCM-24

.......................

DIMENSIONS / ABMESSUNGEN

.......................



WICHTIGE SICHERHEITSHINWEISE

.......................

WICHTIGE SERVICEHINWEISE

.......................

BESCHREIBUNG

.......................

AUSPACKEN & GARANTIE

.......................

INSTALLATIONSHINWEISE

.......................

FRONTSEITE

.......................

RÜCKSEITE

.......................

INPUT A / INPUT B

.......................

PARALLEL

.......................

DSP OUT

.......................

CONTROL PORT

.......................

RS-232 INTERFACE

.......................

ADDRESS

.......................

REMOTE CAN-BUS

.......................

EASY REMOTE

.......................

ENDSTUFENAUSGÄNGE

.......................

KONFG. DER AUSGANGSSPANNUNG

.......................

GROUND-LIFT SCHALTER

.......................

NETZEINGANG

.......................

VERKABELUNG

.......................

NF-VERBINDUNGSKABEL

.......................

REMOTE CONTROL NETZWERK

.......................

NETZWERK-BEISPIELE

.......................

CAN-BUS

.......................

LEITUNGSSPEZIFIKATIONEN

.......................

NETZBETRIEB & WÄRMEENTWICKLUNG

.......................

SPECIFICATIONS / TECHNISCHE DATEN

.......................

BLOCK DIAGRAM AMPLIFIER

.......................

BLOCK DIAGRAM RCM-24

.......................

ABMESSUNGEN

.......................

The lightning  ash with arrowhead symbol, within an

equilateral triangle is intended to alert the user to the

presence of uninsulated „dangerous voltage“ within

the product’s enclosure that may be of suf cient

magnitude to constitute a risk of electric shock to

persons

The exclamation point within an equilateral

triangle is intended to alert the user to

the presence of important operating and

maintance (servicing) instructions in the

literature accompanying the appliance.

Read these instructions.

Keep these instructions.

Heed all warnings.

Follow all instructions.

Do not use this apparatus near water. Do not expose this apparatus to dripping or splahing and

ensure that no objects  lled with liquids, such as vases, are placed on this apparatus.

Clean only with a dry cloth.

Do not block any of the ventilation openings. Install in accordance with the anufactures instructions.

Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus

(including ampli ers) that produce heat.

Only use attachments/accessories speci ed by the manufacturer.

10.

Refer all servicing to quali ed service personnel. Servicing is required when the apparatus has been

damaged 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 exposed to rain or moisture, does not

operate normally, or has been dropped

11.

To completely disconnect mains power from this apparatus, the power supply cord must be

unplugged.

CAUTION:

These servicing instructions are for use by quali ed personnel only. To reduce

the risk of electric shock, do not perform any servicing other than that ontained

in the Operating Instructions unless you are quali ed to do so. Refer all ervicing

to quali ed service personnel.

Security regulations as stated in the EN 60065 (VDE 0860 / IEC 65) and the CSA E65 - 94 have to

be obeyed when servicing the appliance

Use of a mains separator transformer is mandatory during maintenance while the appliance is

opened, needs to be operated and is connected to the mains

Switch off the power before retro tting any extensions, changing the mains voltage or the output voltage.

The minimum distance between parts carrying mains voltage and any accessible metal piece (metal

enclosure), respectively between the mains poles has to be 3 mm and needs to be minded at all times.

The minimum distance between parts carrying mains voltage and any switches or breakers that are not

connected to the mains (secondary parts) has to be 6 mm and needs to be minded at all times.

Replacing special components that are marked in the circuit diagram using the security symbol (Note) is

only rmissible when using original parts.

Altering the circuitry without prior consent or advice is not legitimate.

Any work security regulations that are applicable at the location where the appliance is being serviced

have to be strictly obeyed. This applies also to any regulations about the work place itself.

All instructions concerning the handling of MOS - circuits have to be observed.

SAFETY COMPONENT ( MUST BE REPLACED BY ORIGINAL PART )

NOTE:

IMPORTANT SAFETY INSTRUCTIONS

For US and CANADA only:

Do not defeat the safety purpose of the grounding-type plug. A grounding type plug has two blades and a third

grounding prong. The wide blade or the third prong are provided for your safety. When the provided plug does not

 t into your outlet, consult an electrican for replacement of the absolete outlet.

IMPORTANT SERVICE INSTRUCTIONS

Congratulations!

With buying an Electro-Voice PRECISION SERIES power ampli er you have chosen

an appliance that employs the most advanced technology.

P-Series power amps combine outstanding audio performance, highest reliability and operational

stability. Each power ampli er employs an RCM-24 Remote Control module allowing centralized

con guration, control and monitoring of all relevant power amp parameters (like output current, output

voltage, load impedance, etc.).

The power ampli ers employ two high-performance output transformers each and offer  oating

loudspeaker outputs.

The gapless protection circuitry concept not only prevents the power amp itself but also the connected

loudspeaker systems from being damaged. These extensive protections include Dynamic Audio

Limiters, DC/HF-Protections, Back-EMF-Protection, Inrush Current Limiter, Short Circuit Protection

and of course Thermal Overload Protection for the output transistors and mains transformers.

Three-speed high performance fans guarantee outstanding thermal stability at absolute low running

noise. The ventilation is directed front-to-rear allowing trouble-free operation even in smaller amp-racks.

Comprehensively dimensioned power supply units with low-leakage toroidal transformers provide

extensive headroom far above the stated nominal power.

The RCM-24 provides full-size

overview of the system’s entire status

and control over all rele vant system

parameters at any time. The RCM-24

module allows integration into a Remote

Control Network consisting of up to 250 power amps. The Windows Software IRIS – Intelligent Remote &

Integrated Supervision – allows controlling and monitoring an entire PA-system from a single or several

PCs. Any operational status like initial power-on status, temperature, modulation, limiting, activation of

protections, deviation in the load impedance, etc., are centrally registered and displayed, which provides

the opportunity to take speci c measures prior to the occurrence of critical operational states. Programming

an automatic response for exceeding or falling below speci c limits is possible as well. All parameters,

e.g. power-on/off, levels, muting,  lters, etc. can be controlled in real-time and saved in any power amp

Monitoring the connected loudspeaker systems is performed through measuring output currents

and –voltages of the two power ampli er channels. Each time the signal falls below or exceeds set

limit values is immediately indicated and logged, thus detecting and indicating short circuits and line

interruption during normal operation. The integrated impedance test function allows more precise

checking the connected loudspeaker systems. The integrated signal generator is employed together

with the current/voltage testing to measure the connected loudspeakers’ and cable’s impedance

plus over the entire frequency range. The resulting impedance graph is displayed on the PC-screen.

Comparing the measured impedance progression to a reference value is possible at all times, which

allows recognizing even the slightest loudspeaker defects or irregularities.

DESCRIPTION

Next to controlling and monitoring, the RCM-24 Remote Control module provides comprehensive signal

processing functions. It includes a total of 20 parametric  lter–, X-over functions, delays, routing and

level control as well as compressors and limiters per channel. All parameters can be freely edited and

stored in the module’s 8 user presets. Independent from network control all DSP-settings ( lter, delay,

level) are maintained in case of failure. Additionally, the control inputs of the power amps can be used

for network-independent switching to another preset (e.g. alarm settings with maximum energy for voice

and text announcements). Therefore, P-Series amps with RCM-24 modules installed ful l even the

highest safety requirements.

When designing the RCM-24, uncompromising audio quality was the highest maxim. AD/DA-conversion

is performed at a resolution of 24-bit and 128-times oversampling with linear phase; the internal word

length is 48 bits. With this the RCM-24‘s dynamic range reaches 115 dB, which is an absolute peak

value for digital audio appliances.

All con guration, control and monitoring details of P-Series power amps are explained in the

documentation accompanying the PC Windows software IRIS.

UNPACKING & WARRANTY

Carefully open the packaging and take out the power ampli er. Next to the power ampli er itself, the

package also includes this owner’s manual, a mains cord, the warranty certi cate, four stand-feet, six

screw-on connectors (1x 2-pole, 4x 3-pole, 1x 6-pole) plus a set of rack shelf mounting adapters. Please

inspect carefully whether all information in the warranty certi cate has been  lled in completely, since

only a completely  lled in warranty certi cate entitles you to stake any warranty claims. The appliance

comes with a 36 months warranty, starting with the date when receiving the good from your dealer.

NSTALLATION NOTES

Generally, installing or mounting power amps should be carried out in a way that guarantees continuously

unopposed front-to-rear air circulation. When including an appliance in a closed cabinet or rack shelf

system make sure to provide suf cient ventilation. Leave a gap of at least 60mm x 330mm (up to the

cabinet’s top ventilation louvers) for air circulation between the rear of the power ampli er and the

cabinet’s/rack’s rear wall. Make sure to leave at least 100mm of space above the cabinet or rack shelf

system. Since the temperature inside of the cabinet or rack shelf system can easily rise up to 40°C

during operation, bearing in mind the maximally allowable environmental temperature during operation

for all other appliances installed in the same rack shelf system is mandatory. (also refer to “MAINS

OPERATION & RESULTING TEMPERATURE”)

The use of rails or optionally available rack

adapters – NRS 90235 (112733) – is

mandatory as well when installing the

appliance in a rack shelf system to prevent

the front panel from bending.

Caution:

For problem-free operation exceeding the maximally allowable environmental

temperature or +40°C is not permissible.

The power ampli er has to be protected against: dripping or splashing water, direct sunlight, high

temperatures or direct in uence of heat sources, high humidity, extensive dust and vibrations.

Condensation on internal parts may occur after transporting the power ampli er from a cold into a

warmer environment. In that case operation is only permissible after the appliance has gained the

new temperature (after approximately one hour). If foreign objects or liquids have entered the power

ampli er’s enclosure make sure to instantly separate the appliance from the mains power and contact

an authorised DYNACORD service centre for inspection before continuing operation.

Do not use any sprays or solvents for cleaning the appliance, because they might severely damage the

surface of the enclosure or lead to dangerous  re hazard.

31.75

1/4

“

44.45

3/4

“

44.45

1/2

“

DESCRIPTION

FRONT VIEW

This indicator lights when the power ampli er has been switched on. Causes for

the POWER-indicator not lighting are: the appliance is not connected to the mains

network, a defective primary fuse, or the power ampli er is set to stand-by operation

(STAND-BY LED lights).

This indicator light when the power ampli er is in stand-by mode, which can be

activated from the RCM-24 or via Easy Remote. In stand-by operation only the

internal auxiliary power supply unit is activated. The main power supply unit is

separated from the mains.

The PROTECT LED lights indicating that one of the internal protection circuits

against thermal overload, short-circuit, Back-EMF, HF-occurrence at the output, etc.,

has been activated. In that case, the output relays separate the power amps from

the load connected to prevent the connected loudspeaker systems and the power

ampli ers as well from being damaged. Whatever caused the fault – e.g. a short-

circuited speaker cable –

needs to be remedied. In case of thermal overload you

have to wait until the power ampli er automatically regains normal operation

The OUT LED lights as soon as an audio signal of approximately 30dB below full

modulation is present. The LED is dimmed when speaker cables are short-circuited

or a protection circuit has been activated

The 0dB LED lights when the power ampli er is driven at its maximum. Higher input

voltage does not result in higher peak output voltage

This indicator lights as soon as the integrated dynamic limiter is activated and the

power ampli er is driven at the clipping limit or generally at its maximum capacity.

Short-term blinking is not a problem, since the internal limiter trims input levels of up

to +21dBu down to a S/N-ratio of approximately 1%. If, on the other hand, this LED

lights constantly, reducing the volume is recommended to prevent the loudspeaker

systems connected from being damaged by probable overload

Use the

POWER switch

located in the centre of the front panel to switch the appliance’s power

on. The soft-start function prevents current inrush peaks on the mains, which in addition prevents

the mains line protection switch from activating during power-on operation of the power ampli er.

The loudspeaker outputs are activated via relay switching with a delay of approximately 2 seconds

effectively attenuating eventual power-on noise. The PROTECT LED lights during the delay time and

the fans run at maximum speed. This is normal to con rm the immaculate operation of the protection

circuitry. Upon power-on, all power amps with RCM-24 Module installed regain the state of operation

prior to the last power-off.

For example: if a power ampli er had been switched off using the POWER-switch while being in Stand-

by mode, upon power-on it restarts in this exact mode.

INPUT A / INPUT B

The inputs INPUT A & INPUT B are electronically

balanced offering an input sensitivity of +6dBu

(1.55 V) for direct connection of mixing consoles, etc.

Connection can be established via the XLR-type input

connectors or the supplied screw-on connectors,

which are connected in parallel. The pin-assignment

of the XLR-type input connectors is according to the

IEC 268 standard. In case  oating inputs are needed, retro tting optionally available input transformers

is possible. One extension-kit NRS 90208 (Order-No. 121 641) per channel is needed

PARALLEL CONNECTION

Connection can be established via the XLR-type input connectors INPUT A / INPUT B or the supplied

screw-on connectors which are connected in parallel. In addition, using the PARALLEL-connectors

provides the possibility for connecting the input signal through to feed additional power ampli ers,

without the need for extra splitter-cables

DSP OUT

The DSP output signal – i.e. the post-digital-signal-processing-unit audio signal – is present at the

DSP OUT. The DSP output signal is simultaneously fed to the power ampli er output stage and is

correspondingly ampli ed present at the power amp’s main outputs.

The DSP OUT can be utilized for feeding the digitally processed audio signal from the RCM-24 Remote

Control Module to additional power ampli ers (without DSP-module); e.g. for increasing the overall out-

put power. With a nominal level of +6dBu and a maximum level of +21dBu (8.7V) the output signal is

electronically balanced. Output impedance is

100

Ω

CONTROL PORT

The CONTROL PORT offers two freely programmable control inputs and

control outputs as well as the reference connections for ground potential and

+5V. Using the PC Windows software IRIS, the control inputs can be

con gured and serve for instance for Power-On / Stand-by switching, preset

switching or parameter control.

The two control contacts IN1 / IN2 are internally set to +5V (open) via pull-up

resistors. Activating the control inputs is possible by closing the contacts to ground potential (pin 3) via

external switches, pushbuttons or relays.

The two control outputs OUT1 / OUT2 are carried out as Open Collector Outputs. In non-active state

(Off) they provide high ohmic resistance. In the active state (On) these outputs are connected to ground.

The outputs serve for signalling internal operational states. They can be used for the direct triggering

of LEDs, indication lights or relays. The +5V reference connector provides power supply for externally

connected appliances with amperage of maximally 100mA. The control outputs allow signal indication

of operational states (critical temperature, exceeding or decline of de ned limit values, faults, etc.) at

central operator desks or to other systems ( re alarm system, general alert system) even without PC.

For further detail about con guring the control ports, please refer to the documentation accompanying

the IRIS software

REAR VIEW

The CONTROL PORT offers two freely programmable control inputs and

control outputs as well as the reference connections for ground potential and

+5V. Using the PC Windows software IRIS, the control inputs can be

con gured and serve for instance for Power-On / Stand-by switching, preset

switching or parameter control.

The two control contacts IN1 / IN2 are internally set to +5V (open) via pull-up

The inputs INPUT A & INPUT B are electronically

balanced offering an input sensitivity of +6dBu

(1.55 V) for direct connection of mixing consoles, etc.

Connection can be established via the XLR-type input

connectors or the supplied screw-on connectors,

which are connected in parallel. The pin-assignment

of the XLR-type input connectors is according to the

REAR VIEW

RS-232 INTERFACE

The RS-232 interface is for connecting media control systems as

well

as building management systems providing control and monitoring of all

parameters. Communication is established via an easily to implement ASCII-

protocol allowing trouble-free integration of Remote Ampli ers in media and

touch panel control systems. For a programmer’s guide and complete protocol description, please refer

to the documentation accompanying the IRIS software

ADDRESS

The address selection switch allows setting the ampli er’s network address,

which, within a CAN-network, can range from 01 to 250 (FA hex). Caution:

Each address may exist only once within a network. Otherwise network

con icts might occur. Address setting has to be performed in hexadecimal

code. The selection switch LOW represents the low-value digit while the

HIGH-switch represents the high-value digit

Adress-Table:

HIGH

LOW

Adress

HIGH

LOW

Adress

Stand-alone

0 ... F

128 ... 143

1 ... F

1 ... 15

0 ... F

144 ... 159

0 ... F

16 ... 31

0 ... F

160 ... 175

0 ... F

32 ... 47

0 ... F

176 ... 191

0 ... F

48 ... 63

0 ... F

192 ... 207

0 ... F

64 ... 79

0 ... F

208 ... 223

0 ... F

80 ... 95

0 ... F

224 ... 239

0 ... F

96 ... 111

0 ... A

240 ... 250

0 ... F

112 ... 127

B ... F

reserved

Address 0 (00 hex, factory-pre-set) ensures that the ampli er is separated from the remote

communication, so that it does not appear in the system set-up even though it might be connected to

the CAN-bus. When the ampli er is powered-on with its address set to “0”, all internal parameters are set

to “0” respectively to bypass and the routing is set to 2-in-2. In that case the ampli er behaves absolutely

linear, i.e. signal processing is deactivated

REMOTE CAN BUS

Each ampli er employs two RJ-45 sockets for Remote CAN-bus connection.

The sockets are parallel connected and serve as input as well as for

connecting through of the Remote network. Common RJ-45 patch cables

can be used for rack-shelf cabling. The CAN-bus needs to be terminated at

both ends using a 120ohms termination plug.

Detailed guidelines concerning cabling and bus length are provided in the

chapter “REMOTE CONTROL NETWORK”.

Both RJ-45 sockets additionally carry the balanced audio monitor signal. The nominal output level is

+6dBu (1.55V) while the maximum output level is +21dBu (8.7V).

Connector Pin-Assignment:

(

Connector Pin-Assignment:

)

touch panel control systems. For a programmer’s guide and complete protocol description, please refer

(

Connector Pin-Assignment:

)

EASY REMOTE

Easy Remote provides a simple way to remotely power-on/off the power

amplier. The Easy Remote function is only useful for appliances not

employing a RCM-24 Module. Controlling appliances with RCM-24 Module

installed per Easy Remote is practically pointless.

EASY REMOTE IN

Leaving the pins of the EASY REMOTE IN socket open, i.e. when connecting +5V, the appliance power

is switched on. When connecting the EASY REMOTE IN, i.e. when feeding 0V from the control output,

the appliance enters standby mode.

EASY REMOTE SLAVE

The EASY REMOTE SLAVE connector provides connection for additional appliances with Easy-Remote

function (e.g. for switching several devices within a rack-shelf ON/OFF).

The switching of the slave-units is delayed to prevent the mains fuses from blowing.

POWER AMPLIFIER OUTPUTS

REAR VIEW

The STATUS LED provides optical indication of CAN-bus trafc. When the

power amplier’s address is set to “00” so that it is separated from the CAN-

bus, the STATUS LED blinks every 3 seconds.

As soon as CAN-bus communication is recognized, the LED is activated

for at least 100ms whenever the power amplier actively sends data on the

CAN-bus.

The STATUS LED may also be activated from the PC. In this case, the LED

of the according power amplier blinks fast and steady while all other status-

LEDs within the system stay dimmed.

4-pole binding-post terminals are provided for the power amplier channels „A“

and „B“. Two integrated audio output transformers convert the power amp’s

nominal output voltage to 100V or 70V respectively. Depending on the con-

guration, the corresponding output voltage is present at the oating output

terminals.

The maximum amount of connected loudspeaker systems is reached when the

loudspeaker network’s total power consumption equals the power amplier’s

nominal output capacity, without exceeding the power amp’s nominal load impedance.

For further information on nominal output capacity and nominal load impedance, please refer to the

“SPECIFICATIONS”.

Caution: During operation the binding-post terminals might carry high voltages. Therefore, installing

the loudspeaker network has to be in accordance with applicable safety regulations.

Installation has to be carried out by accordingly trained professionals only.

When installing and operating 100V PA-systems obeying the VDE-regulation DIN VDE

0800 is mandatory.

Especially when 100V alarm PA-system installations are concerned, safety measures have

to be in accordance with rating class 3. Before operating the power amplier closing the

coverlid attached to the terminal strip is mandatory.

REAR VIEW

OUTPUT VOLTAGE CONFIGURATION

The power ampli er’s output voltage is factory pre-set to the corresponding voltage setting for

loudspeaker networks as they are usually used in the speci c country of shipment. Changing this setting

takes only little effort.

Mains Voltage

Factory Pre-Set

220V, 230V, 240V

100V Output Voltage

100V, 120V

70V Output Voltage

Caution:

Opening the appliance is necessary to recon gure the output voltage setting.

Therefore, only trained personnel may perform recon guration.

Before changing the con guration the power ampli er has to be separated from the

mains through pulling the mains plug.

For recon guring the output voltage, please proceed as follows:

For the RCM-24 Module to be able to assign the corresponding currents and voltages, the appliance

needs to be modi ed as follows:

- Remove all screws securing the cover plate.

- Remove the plastic screw in the top plate.

- Open the appliance by removing the cover.

- On the printed board assembly 86276:

for 100V output voltage: close the bridge R56

for 70V output voltage: open the bridge R56

- Proceed in reverse order to reassemble the appliance.

GROUND-LIFT SWITCH

The ground-lift switch allows eliminating noise loops. If the power ampli er

is operated together with other equipment in a 19“ rack-shelf, setting the

switch to its GROUNDED position is recommended. If the power ampli er

is operated together with appliances with differing ground potentials, setting

the switch to its UNGROUNDED position is recommended

MAINS INPUT

Under normal circumstances, the mains fuse only blows in case of fault.

Replacing the fuse is only permissible when using a new fuse of the same

type with identical amperage, voltage and blow characteristics. If the mains

fuse blows more often, please contact an authorized service centre.

- Disconnect any cables connected to the appliance; especially

the mains cord.

- Remove all  xing screws of the output connectors panel.

- Pull out the panel by holding it at the terminal strips

(see diagram).

- The connector pins 100V and 70V are for selecting the desired

output voltage for channel A (right channel) & B (left channel).

- Change the output voltage by pulling the corresponding

connector (grey shaded in the diagram) and inserting it to the

connector pin for the desired voltage setting.

- The diagram shows the con guration with both channels set

to 70V.

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