ATUPT10KHR1 - RVR Elettronica SpA Documentation Server

ATUPT10KHR1 - RVR Elettronica SpA Documentation Server

ATUPT10KHR1

Manufactured by

User Manual

Volume 1

Italy

File Name: ATUPT10KHR1_ING_1.1.indd

Version: 1.1

Date: 09/08/2012

Revision History

Date Version

12/03/2012 1.0

09/08/2012 1.1

Reason

First Version

Minor Upgrades

Editor

J. H. Berti

J. H. Berti

ATUPT10KHR1 - User Manual

Version 1.1

© Copyright 2012

R.V.R. Television

Via del Fonditore 2/2c - 40138 - Bologna (Italia)

Telephone: +39 051 6010506

Fax:

Email:

Web:

+39 051 6011104 [email protected]

www.rvr.it

All rights reserved

Printed and bound in Italy. No part of this manual may be reproduced, memorized or transmitted in any form or by any means, electronic or mechanic, including photocopying, recording or by any information storage and retrieval system, without written permission of the copyright owner.

Notification of intended purpose and limitations of product use

This product is a FM transmitter intended for FM audio broadcasting. It utilises operating frequencies not harmonised in the intended countries of use.

The user must obtain a license before using the product in intended country of use. Ensure respective country licensing requirements are complied with.

Limitations of use can apply in respect of operating freuency, transmitter power and/or channel spacing.

Declaration of Conformity

Hereby, R.V.R. Elettronica SpA, declares that this FM transmitter is in compliance with the essential requirements and other relevant provisions of

Directive 1999/5/EC.

Table of Contents

1. Preliminary Instructions

2. Warranty

3. First Aid

3.1 Treatment of electrical shocks

3.2 Treatment of electrical Burns

4. General Description

4.1 Composition

4.2 Make-Up

4.3 Operating Principles

5. Installation and use

5.1 Assembly

5.2 Amplifier Check

5.3 First Start

5.4 Management of the exciters

5.5 Protections and alarms

6. Technical Description

6.1 Software - Reference guide

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User Manual

ATUPT10KHR1

IMPORTANT

The symbol of lightning inside a triangle placed on the product, evidences the operations for which is necessary gave it full attention to avoid risk of electric shocks.

The symbol of exclamation mark inside a triangle placed on the product, informs the user about the presence of instructions inside the manual that accompanies the equipment, important for the efficacy and the maintenance (repairs).

1. Preliminary Instructions

• General Warnings

This equipment should only be operated, installed and maintained by “trained” or “qualified” personnel who are familiar with risks involved in working on electric and electronic circuits.

“Trained” means personnel who have technical knowledge of equipment operation and who are responsible for their own safety and that of other unqualified personnel placed under their supervision when working on the equipment.

“Qualified” means personnel who are trained in and experienced with equipment operation and who are responsible for their own safety and that of other unqualified personnel placed under their supervision when working on the equipment.

WARNING: Residual voltage may be present inside the equipment even when the ON/OFF switch is set to

Off. Before servicing the equipment, disconnect the power cord or switch off the main power panel and make sure the safety earth connection is connected.

Some service situations may require inspecting the equipment with live circuits. Only trained and qualified personnel may work on the equipment live and shall be assisted by a trained person who shall keep ready to disconnect power supply at need.

Operation of this equipment in a residential area may cause radio interference, in which case the user may be required to take adequate measures.

The specifications and data contained herein are provided for information only and are subject to changes without prior notice. R.V.R. Television disclaims all warranties, express or implied.While R.V.R. Television attempts to provide accurate information, it cannot accept responsibility or liability for any errors or inaccuracies in this manual, including the products and the software described herein.

R.V.R. Television reserves the right to make changes to equipment design and/or specifications and to this manual at any time without prior notice.

• Notice concerning product intended purpose and use limitations.

This product is a radio transmitter suitable for frequencymodulation audio radio broadcasting. Its operating frequencies are not harmonised in designated user countries.

Before operating this equipment, user must obtain a licence to use radio spectrum from the competent authority in the designated user country.

Operating frequency, transmitter power and other characteristics of the transmission system are subject to restrictions as specified in the licence.

R.V.R. Television shall not be liable for injury to persons or damage to property resulting from improper use or operation by trained/untrained and qualified/unqualified persons.

WARNING: The equipment is not water resistant.

Any water entering the enclosure might impair proper operation. To prevent the risk of electrical shock or fire, do not expose this equipment to rain, dripping or moisture.

Please observe local codes and fire prevention rules when installing and operating this equipment.

WARNING: This equipment contains exposed live parts involving an electrical shock hazard. Always disconnect power supply before removing any covers or other parts of the equipment.

Ventilation slits and holes are provided to ensure reliable operation and prevent overheating; do not obstruct or cover these slits. Do not obstruct the ventilation slits under any circumstances. The product must not be incorporated in a rack unless adequate ventilation is provided or the manufacturer’s instructions are followed closely.

WARNING: This equipment can radiate radiofrequency energy and, if not installed in compliance with manual instructions and applicable regulations, may cause interference with radio communications.

WARNING: This equipment is fitted with earth connections both in the power cord and for the chassis.

Make sure both are properly connected.

2. Warranty

La R.V.R. Television warrants this product to be free from the limitations set forth in the supplied Terms and Conditions.

Please read the Terms and Conditions carefully, as purchase of the product or acceptance of the order acknowledgement imply acceptance of the Terms and Conditions.

For the latest updated terms and conditions, please visit our web site at WWW.RVR.IT. The web site may be modified, removed or updated for any reason whatsoever without prior notice.

The warranty will become null and void in the event the product enclosure is opened, the product is physically damaged, is repaired by unauthorised persons or is used for purposes other than its intended use, as well as in the event of improper use, unauthorised changes or neglect.

In the event a defect is found, follow this procedure:

1 Contact the seller or distributor who sold the equipment; provide a description of the problem or malfunction for the event a quick fix is available.

Sellers and Distributors can provide the necessary information to troubleshoot the most frequently encountered problems. Normally, Sellers and Distributors can offer a faster repair service than the Manufacturer would. Please note that Sellers can pinpoint problems due to wrong installation.

2 If your Seller cannot help you, contact R.V.R. Television appropriate, you will receive an authorisation to return the equipment along with suitable instructions;

3 When you have received the authorisation, you may return the unit. Pack the unit carefully before shipment; use the original packaging whenever possible and seal the package perfectly. The customer bears all risks of loss (i.e., R.V.R. shall not be liable for loss or damage) until the package reaches the R.V.R. factory. For this reason, we recommend insuring the goods for their full value. Returns must be sent on a C.I.F. basis (PREPAID) to the address stated on the authorisation as specified by the R.V.R. Service Manager.

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Units returned without a return authorisation may be rejected and sent back to the sender.

4 Be sure to include a detailed report mentioning all problems you have found and copy of your original invoice (to show when the warranty period began) with the shipment.

Please send spare and warranty replacement parts orders to the address provided below. Make sure to specify equipment model and serial number, as well as part description and quantity.

R.V.R. Television

Via del Fonditore, 2/2c

40138 BOLOGNA ITALY

Tel. +39 051 6010506

3. First Aid

All personnel engaged in equipment installation, operation and maintenance must be familiar with first aid procedures and routines.

3.1 Electric shock treatment

3.1.1 If the victim is unconscious

Follow the first aid procedures outlined below.

• Lay the victim down on his/her back on a firm surface.

• the neck and tilt the head backwards to free the airway system ( Figure 1).

Figure 1

• If needed, open the victim’s mouth and check for breathing.

• If there is no breathing, start artificial respiration without delay ( Figure 2) as follows: tilt the head backwards, pinch the nostrils, seal your mouth around the victim’s mouth and give four fast rescue breaths.

• Do not stop chest compressions while giving artificial breathing.

• Call for medical help as soon as possible.

3.1.2 If the victim is conscious

• Cover victim with a blanket.

• Try to reassure the victim.

• Loosen the victim’s clothing and have him/her lie down.

• Call for medical help as soon as possible.

3.2 Treatment of electric burns

3.2.1 Large burns and broken skin

• Cover affected area with a clean cloth or linen.

• Do not break any blisters that have formed; remove any clothing or fabric that is stuck to the skin; apply adequate ointment.

• Administer adequate treatment for the type of accident.

• Get the victim to a hospital as quickly as possible.

• Elevate arms and legs if injured.

If medical help is not available within an hour, the victim is conscious and is not retching, administer a solution of table salt and baking soda (one teaspoon of table salt to half teaspoon of baking soda every 250 ml of water).

Have the victim slowly drink half a glass of solution for four times during a period of 15 minutes.

Stop at the first sign of retching.

Do not administer alcoholic beverages.

3.2.2 Minor burns

• Apply cold (not ice cold) strips of gauze or dress wound with clean cloth.

• Do not break any blisters that have formed; remove any clothing or fabric that is stuck to the skin; apply adequate ointment.

• If needed, have the victim change into clean, dry clothing.

• Administer adequate treatment for the type of accident.

• Get the victim to a hospital as quickly as possible.

• Elevate arms and legs if injured.

Figure 2

• Check for heartbeat ( Figure 3); if there is immediately ( Figure 4) placing your hands in the centre of the victim’s chest ( Figure 5).

Figure 3 Figure 4 Figure 5

• One rescuer: give 2 quick rescue breaths after each 15 compressions.

• Two rescuers: one rescue breath after each 5 compressions.

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4. General Description

The ATUPT10KHR1 is a trasmitter for TV broadcasting, manufactured by , manufactured by R.V.R. Elettronica S.p.A.. It is a fully solid-state apparatus of modern design that uses LD-MOSFET as active components in the FM amplifying modules

The ATUPT10KHR1 transmitter constitutes the end power section for TV transmitters fitted with different possible configurations. A control system for the exciters is built into the machine so that in order to have a system with redundant exciters, all that needs to be done is to include two exciters in the transmitter such as the STU05 exciters.

It is a fully solid-state apparatus of modern design that use MOSFET as active components in the TV amplifying modules. This chapter briefly describes the machine’s main features.

4.1 Composition

The ATUPT10KHR1 transmitter is made up of modules inserted in two 19” rack.

The main modules are as follows:

• 1 x 10 W TV exciters (STU05)

• 1 x 10 kW TV amplifier modules (ATVHA10K)

• 1 Control Unit

10 x 1.2 kW RF amplifier modules

2 Power supply unit carriages

1 Splitter/Input RF

1 Combiner/Output RF

• 1 Dummy Load (Unbalanced Unit)

Note: ATUPT10KHR1D transmitter is composed of 2 exciters.

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Frontal View

The transmitter is supplied complete with all its parts, not really “modules”, essential for its operation such as the pumps for dissipating the heat generated by the machine inside the room and all the accessories for the electrical and RF wiring.

The transmitter is supplied with two TV exciters that it manages will be provided and connected (a service exciter and a spare exciter).

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4.2 Make-Up

Frequency range:

Nominal RF power:

Power supply voltage:

Exciting power:

Consumption:

Power factor:

Weight:

UHF IV&V band 470 to 862 MHz

10,000 W

PS

(Analog Mode)

400 Three-phase, 3F+N

About 6 W

About 20 kW (with red pattern)

> 0.95

500 kg (rack) – 20 kg (module) – 140 kg

(Power supply)

Additional important features of the ATUPT10KHR1 are as follows:

• The 1.2 kW amplifying modules are implemented by means of plug-in technology: the individual modules may be removed for performing maintenance operations, for instance, without having to turn off the transmitter. The transmitter keeps working at reduced power even if the module has been removed. This operation may be carried out without any risk of damaging the module itself, or the amplifier as a whole, thanks to the control system and to the RF connectors, the power supply and the purposely designed data-exchange. For further information refer to the maintenance section.

• Each amplifying module is controlled by a microprocessor-based card that checks and adjusts its operating mode. The resulting data are transmitted to the control unit.

• The transmitter can work as usual even if the control unit is not present. In fact, the control unit may be substituted temporarily with an electromechanical interface by means of which the user may give the ON and OFF commands to the machine. However, in this case all the numeric type information will be missing and the power level remains the last one enabled before removing the control unit.

4.3 Operating Principles

The ATUPT10KHR1 exciter essentially comprises three blocks:

• The power supply section

• The Splitter-Coupler section

• The RF amplifier section

• The Exciter section

The power supply section of the ATUPT10KHR1 transmitter is made up of two three-phase transformers, each one associated with a rectifier circuit for generating the non-stabilized voltage of 80V that supplies the RF modules. The transformers and the rectifier circuits are mounted on removable carriages together with power inductors that help achieve a power factor of about 0,96.

The power supply section is controlled by a microprocessor-based card installed in the rack.

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The Splitter-Coupler section performs all the treatment of the RF signal except for the power amplification.

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Block Diagram of Trasmitter

The RF signals generated by two exciters (in the redundant configuration) are first attenuated by 3 dB to improve the uncoupling among the stages and then connected to a coaxial relay commanded by the control unit. One of the two signals is closed on a dummy load built into the machine whereas the other signal is connected to the input splitter. The power of both signals is measured by specific directional couplers.

The RF signal of the selected exciter is divided into ten branches (five branch for each rack), each of which is passed to the input of an amplifying module.

The ten RF amplifiers branches are recombined by the coupler at the output of the amplifying modules. The overall amplified RF signal is filtered by a band-pass filter for eliminating the harmonics and is therefore available at the output connector.

The Splitter-Coupler section is controlled by a microprocessor-based card, which makes the values detected at the various measuring points available for the user and for the diagnostics functions.

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The machine contains 10 R.F. amplifier modules each of which is capable of supplying a maximum of 1.2 kW RF. Each module includes a switching mode power supply unit that regulates and stabilizes the power supply voltage supplied by the power supply section.

Each amplifying module contains a ten stage with gain that varies according to the

LD-MOSFET MRF373. The RF signal amplified by the driver is then separated into four branches, amplified by four modules based on LD-MOSFET BLF888.

Each RF amplifying module is controlled by a microprocessor-based card, connected to the other microprocessor-based cards of the machine by means of a RS485 type bus.

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5. Installation and use

This chapter contains the basic instructions for installing and using the

ATUPT10KHR1 transmitter. If necessary, more in-depth information about the operating principles may be traced in the next chapters.

5.1 Assembly

For practical reasons and for transport safety, the machine is usually supplied disassembled to the customer. The assembly procedure is rather simple and can be carried out by any qualified technician.

Note: In order to avoid the risk of damaging the machine and/or of injuring the operators, it is advisable to closely adhere to the instructions provided below. always respect all the safety regulations and standards in force.

Identify the machine components:

• The racks (various components are assembled, such as the coupler, the splitter, the control unit, the amplifiers and exciters)

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Check that all the components are in perfect working order. Should there be any kind of problem, for instance if there is any damage caused by the transport of the components, read the instructions associated with the Warranty at the beginning of this manual.

1 Combine the two bulk rack between them near the location where the transmitter will work.

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Fix the racks with the screws (x4) positioned 2 in front side and 2 in rear side in conjunction, indicated by LOCK labels.

2 Install the racks in the location where the transmitter will work.

The transmitter is cooled by liquid cooling and the liquid outlet is on the machine’s roof.

Once removed the packaging protections, place it in the position you want it to run.

Fix on the floor with the screws (x4) positioned in the corners at the base of the racks.

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3 Perform the connection of the low power supply by connecting the red and black cables of rack 1 to that of rack 2.

4 Connect the machine’s interconnection cable.

Route the cable (13-pole type), from rack 2 to rack 1, through the internal side and fix the conductors to the terminals of the master switch.

Danger: connect the conductors using the same numbering placed on the wire

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5 Connect the machine’s main power supply cable. Route the cable (5-pole type) through the raceway on the machine’s roof and fix the conductors to the terminals of the master switch.

External view (Power supply cable)

It is recommended not to turn on the machine without first have connected the RF exit to the antenna or to the dummy load!

The ATUPT10KHR1 requires a three power supply 3F (black, brown and grey)

+ N (blue) + GND (green yellow) able to give threephase 380 or threephase

220, 50 or 60 Hz for phase (otherwise it could seriously damage). Keep this requirement in mind in connecting to the personal distribution board.

User Manual

Interrnal view (Power supply cable)

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Danger: The connection of the machine to the electric alimentation is performed fixing to a 5 poles cable with bare terminals to a terminal block. Making sure without any possibility of error that the cable is not under tension while working on it.

7 Perform the connection between DB9 ( CN1 SECOND SPLITTER and CN2KDI) from rack 1 to rack 2 through the internal side.

8 Perform the interconnetion between BUS INT from rack 1 to rack 2 through the internal side.

9 Perform the RF connetion between rack 1 and rack 2 through the internal side by connect the SPLITTER IN1-B 29 cable of rack1 to input of rack 2.

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10 Connect the hybrid coupler between the RF output of rack 1 (

PWR OUT RACK

1) and the RF output of rack 2 (PWR OUT RACK 2) located on relative roofs, remembering to fix the screws. Connect using the same name on the labels, for a proper installation.

11 Connect the rejected power-line between the first output of hybrid coupler

( REJECTED POWER-LINE “A”) and dummy load input (TO DUMMY LOAD

INPUT “G”) placed inside the rack 2, remembering you must tighten the screws to fixing.

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In case that the rejected power-line was supplied dismantled, for a correct assembly, use the same name on the labels to combine the several parts.

12 Connect the directional coupler ( IN DCPLR “A”) on the second output of hybrid coupler, remembering that you must tighten the screws to fixing.

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13 Perform the connection of the forward power control by connecting the

TX FWD

OUT 11 cable of rack 1 to FWD of directional coupler.

Perform the connection of the reflected power control by connecting the

TX RFL OUT 13 cable of rack 1 to RFL of directional coupler.

Perform the connection of the RF monitor control by connecting the

RF

MONITOR 23 cable of rack 1 to RF MONITOR of directional coupler.

14 Insert the first amplifying module into the RF modules compartment.

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The modules have a groove at the top and one at the bottom: insert the modules so that the guides in the compartment fit into these grooves.

Slide the module until the two fixing screws fit into their seats. Then tighten the fixing screws at the same time so that the module inserts into its compartment remaining parallel until it is perfectly in place.

Repeat the operation with the other four RF modules.

15 Insert the first transformer carriage into the left-hand side of the specific compartment of rack 1. The carriage is mounted on three wheels (two are fixed on the front side and one pivoting rear wheel) to facilitate this operation. Move the carriage toward the left-hand wall of the rack and then move it forward until the connectors at the back are perfectly inserted into their seats.

Note: The power supply unit carriage is very heavy and its barycenter is high, therefore be careful when handling it to avoid tipping it over.

Insert the second power supply unit carriage as you did with the first one.

Position the stop bar of the power supply unit carriages.

Make the necessary connections of the power supply unit carriages :

Power supply connector

Data connectors

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Connect the machine’s main power supply cable. Route the cable (5-pole type) through the raceway on the machine’s roof and fix the conductors to the terminals of the master switch. The last operation is usually performed by removing the knob and the cover of the isolating switch.

Note: The connection of the machine to the electric alimentation is performed fixing to a 5 poles cable with bare terminals to a terminal block. Making sure without any possibility of error that the cable is not under tension while working on it. It is reccomended not to turn on the machine without first have connected the RF exit to the antenna or to the dummy load!

16 Identify the dummy load and, and as a first step, open the red valve on the dummy load by removing the screw on it.

Insert the dummy load in the rack 2 and secure through 4 screws, being careful to have the RF output facing the rear of the transmitter.

Connect the power cord to the rack 2.

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17 Reposition the roof panels, the protection panels of the RF modules, the protection panel of dummy load and of the transformer/rectifier carriages.

18 Perform the connection of the unbalanced power ouput control by connecting the EXT. UNBAL PWR-OUT cable to UNBAL POWER OUT of rigid line.

The other side of EXT. UNBAL PWR-OUT cable must be connected with UNBAL

PWR INPUT (DB9 connector) placed on the top, on the plate connectors.

19 Always on the top, on the plate connectors, put the VDE bridge or the UPS

(opt.) and turn it on, otherwise the control logic will not work.

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.

20 Connect the rigid line ( IN RIGID LINE “A”) to the directional coupler output (TO

IN RIGID LINE “A”), remembering that you must tighten the screws to fixing.

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The other side of the rigid line ( TO FILTER INPUT “F”) must be connected to the filter input on the roof of rack 2 ( FILTER INPUT “F”), remembering that you must tighten the screws to fixing.

In case that the rigid line was supplied dismantled, for a correct assembly, use the same name on the labels to combine the several parts.

19 Connect the antenna cable to FILTER OUPUT (TO ANTENNA).

20 Perfom all connections video and audio from its source to the transmitter.

.

• Connect AUDIO INPUT “EXCITER 1” - MONO OUT “XLR” cable between

AUDIO IN 1 of STU05 and MONO OUT of NICAM encoder.

• Connect IF OUTPUT MCX - NICAM INPUT BNC cable between IF OUT (VISION

MODULATOR) of STU05 and NICAM IN of NICAM encoder.

• Connect IF INPUT MCX - NICAM OUTPUT BNC cable between IF IN (IF

PRECORRETTOR) of STU05 and NICAM OUT of NICAM encoder.

Note: The video and audio connectors are not in parallel but directly connect to the exciters.

21 Now you may perform the preliminary checks on the transmitter and start it up.

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5.2 Amplifier Check

The operator controls and checks the status of the ATUPT10KHR1 by means of the control unit. Two control groups are present on this unit:

• LCD and scroll buttons

• Buttons, selector switches and LEDs

• Analogue instrument and rotary selector switch

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Default Screen

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Menu select Screen

5.2.1 LCD and scrolls buttons

The operator uses the control software of the transmitter by means of a series of menus that are displayed on the LCD. Four specific keys are provided for scrolling through the menus, performing the settings and giving the commands:

Function

OK

ESC

Description

Click this button to access a sub-menu, to enter the editing mode or to confirm a modified value.

Click this button to exit from a menu or to cancel the modification of a value.

Click this button to scroll inside a menu (to the right or down) or to reduce the value of a parameter being modified.

Click this button to scroll inside a menu (to the left or up) or to increase the value of a parameter being modified.

When the operator is not using the various buttons to navigate, the LCD displays the preset screenful that shows the overall status of the machine’s modules. The control unit acquires, every second, the status of the other modules by means of a COM serial bus. The activity at the bus is signalled by the “BUS INT” LEDs on the unit’s panel.

As indicated on the preset screenful, push the ESC button to access the screenful for selecting the menus.

On reaching the selection screenful, move the cursor (full rectangle) using the arrow keys to display the concerned line. Then click OK to access the associated menu. Select the “General Status” menu to return to the preset screenful.

5.2.2 Buttons, selector switches and LEDs

The typical machine-control operations are performed using the buttons of the control unit’s panel. Specific LEDs correspond to each button and selector switch for indicating the machine’s status.

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The functions performed by the controls are as follows:

Function

OFF

STDBY

ON

LOC/REM

ALARM RESET

NOMINAL POWER

POWER LOWER

EXCITER CHANGEOVER

LEDs (Wait, Warning, Fault)

Description

Button for turning off the machine. A LED signals that the machine is OFF. In this status, the exciters and the fan are off and the RF amplifying modules are not powered.

Button for setting the machine in standby. In

Not Used.

Button for turning on the transmitter. The RF power supply is activated.

Selector switch for setting the transmitter in remote or local mode. In local mode the buttons and the controls via the menus are active. In remote mode the buttons and the controls via the menus are inhibited and the commands may be given only remotely via the parallel interface or via the remote control software.

Button for zeroing the FAULT or WARNING alarms.

Not Used.

Not Used.

Use this button to set the changeover system in manual or automatic mode.

The signaling LED turns on when the manual mode is selected. On performing a changeover, the exciter connected to the amplifier is deviated toward the internal dummy load and vice-versa. The operator must use the exciters menu to perform the changeover in manual mode.

Other signaling LEDs are connected to the alarm states and to the serial data transmissions that take place among the microprocessorbased cards. The function of these LEDs is described further on in this manual.

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5.2.3 Analogue instruments

The control unit of ATUPT10KHR1 contains an analog meter with a rotating selector that are useful for an immediate display of the following parameters:

Function

FWD PWR

RFL PWR

UNBAL

PWR EXC1

PWR EXC2

EXT FWD PWR

EXT RFL FWD

EXT UNBAL

Description

Transmitter direct power

Transmitter reflected power

Transmitter unbalancing power

Power supplied by the exciter currently connected to the amplifier. This value is measured by the machine in the splitter section

Power supplied by the exciter currently connected to the internal load. This value is measured by the amplifier in the splitter section

Direct power of an external combiner.

Reflected power of an external combiner.

Unbalancing power of an external combiner.

These three values are used when the transmitter is connected to a 1+1 system.

The SET outputs may also be connected to these quantities.

5.3 First Start

This section describes the procedure for powering-on the machine the first time. For simplicity’s sake, the automatic control capacities of the exciters are temporarily disabled.

Refer to chapter 5.4 that provides the instructions for turning on the

ATUPT10KHR1

in the various cases.

5.3.1 Preliminary operation

Before activating this piece of equipment, the necessary connections must be performed, and in particular:

• Power supply

• Modulating signals (TV, Audio or MPX, RDS...)

• RF load (antenna feeder or dummy load)

About to the connections of the power supply and the modulating signals, please refer to chapter 5.1.

The machine’s RF output is the “EIA 1 5/8” flanged type and is accessed on the roof of the ATUPT10KHR1 . If a dummy load capable of dissipating the RF power generated by the transmitter is available, it is advisable to run the first tests by connecting to it rather than to the transmission antenna.

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5.3.2 Power-on

When powering-on the transmitter the first time, perform the operations outlined in the table below.

The “Result” column indicates the immediate results of the operations performed plus a few indications that confirm that the machine is working efficiently.

Should any inconsistencies occur as compared to these indications, interrupt the procedure and identify the reason for the malfunction before resuming the procedure.

Operation Result

Close the “Transformer Breaker” isolating switches

The power supply unit carriages are powered

Turn the “Mains” switch The whole transmitter is powered. The machine is activated in the same status it was in when it was turned off the last time

Press the OFF key of the control unit RF emission by the transmitter is inhibited; the exciters are off; the RF amplifier modules are off

Press the EXCITER CHANGEOVER key of the control unit

The automatic management for the exciters changeover is disabled. The MANUAL LED must be on (otherwise press the key again)

Set the parameters of the control unit This procedure is described in chapter

5.3.3 on in this manual. The control unit communicates the nominal power and reduced power values to the RF modules. It also handles the coaxial relays so that the on air exciter is the desired one and sets the

Set the exciters

Press NOMINAL POWER and ON exciter to ON mode

Adhere to the instructions of the exciters used for setting the required work frequency on the exciters. Regulate the output power of the exciters to 20 W.

The current exciter is activated (the interlock is released from the exciter) and its power emission is enabled. The power emitted by the ATUPT10KHR1 amplifier increases gradually until it attains the level that had been set previously as “Nominal power”.

Check the emitted power level by means of the analog instrument with the selector switched to FWD PWR position.

When the transmitter is on and works at its nominal power, the whole series of

“accessory” checks and settings deemed necessary may be carried out before starting up the apparatus.

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5.3.3 Control unit settings

The settings of the control unit that are required for starting up the machine, mentioned in the powering-on procedure, are the following:

1 Setting of the power levels

2 Setting of the on air exciter

Before performing the first operation, click the ESC button. The display shows the screenful for selecting the menus. Click the arrow keys until the cursor highlights the line associated with the Setting menu. Click OK: the software will show the associated screenful on the display.

Menu Settings Screen

Before performing the first operation, click the ESC button. The display shows the screenful for selecting the menus. Click the arrow keys until the cursor highlights the line associated with the Setting menu. Click OK: the software will show the associated screenful on the display.

On having accessed the Settings menu, use the arrow keys to select the nominal power line (Pwr. Out) and click OK. Use the arrow keys to decrease or increase the indicated percentage value up to the required level. Click OK again to set this value. Repeat the operation for the line associated with the reduced power level

(Pwr. Lower).

The new power level is transmitted to the combiner module and then stored in

EEPROM only when the ESC button is clicked.

When inside this menu, it is advisable to check the date and time lines and update them if necessary. Note: the date and time are used only for marking the events in the alarms register.

The date and time do not need to be updated in the transmitter in order for it to work efficiently.

On having completed these settings, click ESC to return to the selection screenful.

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In order to set the on air exciter, select the Exciters menu. Take into consideration the On Air Exciter line: the number to the right indicates the exciter being used.

To change it simply highlight the line and click OK.

Menu Exciters Screen

The exchange of the exciters is assisted from the software, that is when the commutation is carried out, the interlock comes systematized in the correct way independently from like they were. The interlock could be modified also manually in case of necessity.

5.4 Management of the exciters

This chapter describes the ways in which the microprocessor controls the amplifier and how the user may interact with the software.

The control unit can perform the automatic changeover between exciters if one malfunctions. The Manual LED on the panel indicates, when it is lighted up, that the automatic changeover function is disabled. In order to enable it, click the

EXCITER CHANGEOVER button and check that the LED turns off. In operation of the ATUPT10KHR1 automatism state, the behavior of the machine will be different.

In this chapter are described the different cases.

In function of the state of the

ATUPT10KHR1 automatism, the behaviour of the machine will be various. In this chapter are described the different cases.

5.4.1 Start-up from power-on with exciters in manual mode

When powering on the machine with the exciters in manual mode, the apparatus does not perform any check, both mute RF signals are active and the changeover relay remains in standby status. Use the exciters menu to activate an exciter.

This is why, if the transmitter is left in manual mode, any momentary power failure will cause the transmitter to be inactive when turned on again. Therefore it is advisable to leave the ATUPT10KHR1 in automatic mode when you are not performing maintenance operations.

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5.4.2 From OFF to ON with exciters in manual

When switching from OFF (or STDBY) to ON with the exciters in manual mode, the apparatus does not perform any check and the exciter that is currently set to on air is the one that is aired.

If the mains signal is not OK, the exciters turn off automatically.

If the maximum drive power is exceeded during operations (> 35W), the

ATUPT10KHR1 is set to fault status and power supply is cut to the exciters.A message in the alarms menu signals this fault.

When the apparatus is set to STDBY, the mute RF signals of the exciters are not activated and may be modified by the operator.

When the apparatus is set to EXT INT or AUX INT, the mute RF signals of the exciters are not activated and may be modified by the operator.

5.4.3 Automatic changeover

When the

ATUPT10KHR1 is in the exciter automatic changeover mode, the power emitted by the on air exciter is checked constantly. If at any time the on air exciter is no longer good (i.e. power drops to below the preset level), the apparatus is kept operational whereas the exciter connected to the internal Dummy Load turns on.

If the latter one is good (i.e. it is capable of supplying the required power), then the two exciters are changed over. Instead if the alternative exciter is not good, no changeover takes place, the control unit commands the mute RF of the exciter to

Dummy Load, it waits 120 s. and repeats the attempt. This procedure is repeated indefinitely until one of the two exciters is considered to be good.

During the whole length of time during which there is no good exciter, the ATUPT10KHR1 keeps the WAIT LED on for signalling this status.

Each exciter is fitted with its own mute RF. On being commanded, the piloting signal must return to zero within 3 seconds at the most. If this does not occur, the fault is recorded by an error message that is entered in the alarms menu.

If the mains signal is not OK, the exciters turn off automatically. If the piloting power exceeds the limit during operations, the ATUPT10KHR1 is set to the FAULT status and the power supply of the exciters is turned off. A message in the alarms menu signals the fault. Keep in mind that the operator’s intervention is required to exit from the FAULT status.

If the MAINS signal coming from the bus is not OK, the exciters are all turned off.

As soon as the MAINS signal is regular again, the evaluation cycle of the exciters begins.

When the apparatus is set to STDBY, the mute RF signals of the exciters are activated and as such both exciters are inhibited. If the ON key is pressed, the system re-evaluates both exciters in the same manner as in the procedure from

OFF to ON.

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When the apparatus is set to EXT INT or AUX INT, the mute RF signals of the exciters are activated and therefore both exciters are inhibited. When the external interlocks are released, the system re-evaluates both exciters as during the phase from OFF to ON.

5.4.4 Phase from ON to OFF

When the apparatus is set to OFF status and you press the ON button, the power supply of the exciters is activated and the logic starts to evaluate the exciters.

During the evaluation phase, the WAIT LED stays ON.

When the apparatus is turned OFF, it memorizes the exciter on air. Consequently when the machine restarts it can attempt to restore the previous conditions. On the machine restarting, if the exciter that is to be aired does not attain the preset power level whereas the spare one is operational, the apparatus performs the changeover when the evaluation time (120 s.) expires.

On the machine restarting, if both exciters do not attain the preset power level, the apparatus airs the one that had been present when the machine was turned off, after the evaluation time has expired.

5.4.5 Start-up with exciters in automatic mode

The sequence run by the ATUPT10KHR1, when the power supply is activated while it is already in ON status and the exciters are in automatic mode, is identical to the one run for switching from OFF to ON. The only difference is that a screenful displays the countdown for determining the fault of the exciters. During this phase the manual/automatic button is inhibited and in order to set the exciters to manual mode you must press the OFF button of the apparatus.

5.4.6 Start-up with exciters in automatic mode

The control unit of the ATUPT10KHR1 can manage a fault signal, for each exciter, which normally has an “Audio Alarm” meaning. The control software of the

ATUPT10KHR1 does not intervene in triggering these signals since they must be checked by the exciters (or by any other connected devices).

The Audio Alarm signals are made up of two inputs for the logical signals on the parallel interface and on the “mute RF” command connector of the exciters.

The control unit manages these signals just like it manages the power good signals:

• Each “Audio alarm” signal is associated with its own exciter

• If the audio signal, associated with the exciter that is currently on air, enters an alarm status, the ATUPT10KHR1 waits for the time configured in the exciter menu before it attempts the restoring operation

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• If the audio of the aired exciter is still in alarm status on the elapsing of the aforesaid time interval, the control unit checks if the audio of the exciter on the dummy load is regular. In this case the changeover between the exciters is performed.

Observe the following differences as compared to the case in which power is missing:

• The management of the “Audio alarm” signals is not active during the startup phase and during the switching phase from OFF to ON, but only when the exciters are working in automatic.

• In the standard configuration, the aforesaid sequence continues until the audio signal associated with one of the exciters becomes regular again. In the “N+1” configuration, the switching attempt is performed only twice, after which the

ATUPT10KHR1 enters the fault status.

• An Audio Alarm output is provided on the parallel interface: this signal is activated

(with no delays) when the audio of the exciter that is currently on air is in alarm status.

5.5 Protections and alarms

The ATUPT10KHR1 contains a complete protection and alarms system, both at the individual modules level and at the control unit level.

The modules are fitted with a micro-processor-based system that manages any malfunctions locally. The associated information is communicated to the control unit for displaying and storing the events and for the centralized management of the events that require it.

Certain LEDs of the ATUPT10KHR1 panel are dedicated to the management of the alarms:

LED

WARNING

FAULT

WAIT

Description

This LED indicates a warning (something is not correctly working, but the amplifier is still working)

This LED indicates a fault (the transmitter is shut off, the operator’s intervention is required)

This LED indicates the wait status (the transmitter is temporarily off, it will be restarted as soon as the reason that keeps it from working will be removed, or after a fixed amount of time depending on the reason of the intervention of the protection system)

The ALARM RESET button is used for resetting the alarms and restarting the machine.

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6. Technical Description

6.1 Software - Reference guide

This chapter gives a point to point description of the screens composing the software of the ATUPT10KHR1.

Since the management software is able to control up to 10 modules, some of the menus configurate themselves for the number of modules. For example, in a

ATUPT10KHR1 the menu Overall Status has four “RF Unit” lines, so only four of them will be shown.

6.1.1 Overall Status Menu

This is the default menu appearing when the user switches the unit on.

This menu includes only indications, therefore the user cannot insert any input in its different lines.

Menu Line

Timer

Control Unit

Power Supply

R.F. Combiner

R.F. Unit - N

Hours

Description

Not Used.

Status of the control unit (Off or On) and indication of the exciter actually connected to the amplifier (Exct.1 or Exct.2)

Status of the power-supply cart (Off or On)

Status of the RF combiner (Off or On)

Status of the Rf power amplifier number N

(Off or On)

Timer counting the hours of operation of the transmitter. For example, this indication is useful in order to define when a maintenance operation can be made

From the predefined menu, by pressing the Esc key as indicated on the last line, you can shift to the exchange screen from which you can have access to all the other menus of the unit.

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6.1.2 Select Menu

This is the exchange menu from which you can select the different sub-menus that compose the software.

In order to enter a sub-menu, select the correspondent line with the arrow buttons and press Enter.

Menu Line

General Status

Power Supply

R.F. Combiner

R.F. Units

Alarms

Service

Settings

Exciters

Info

Release

Modem

Description

General status of the

ATUPT10KHR1

Status of the power-supply cart

Status of the RF combiner

Status of the RF power amplifiers

Summary of the occured alarms

Service menu for the switching on/off of the modules

Not Used.

Parameters of the exciters (i.e. output power, on air exciter)

Information concerning the configuration of the

ATUPT10KHR1

Information concerning the hardware and software versions of the modules composing the unit

Settings related to the optional telemetry system

To return to the predefined menu, select General Status and press OK.

Menu Select Screen

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6.1.3 Control Unit Menu

Informative menu on the inputs and the outputs of the control unit of the machine.

Menu Line

Ext Intl

Aux Intl

Exc1 A.Audio

Exc2 A.Audio

Reserve 1

Reserve 2

Reserve 3

Reserve 4

Relay Exc

Exc 1 Mute

Exc 2 Mute

Audio Alarm

Exc’s Mains

Stand_by (In)

Stand_by (Out)

Total Eff

Description

Input status “external interlock” (JP4/4 parallel interface)

Input status “auxiliary interlock” (JP4/5)

Input status “audio alarm exciter 1” (JP4/8)

Input status “audio alarm exciter 2” (JP4/9)

Input status “Reserve 1” (JP8/2 parallel interface)

Input status “Reserve 2” (JP8/3)

Input status “Reserve 3” (JP8/4)

Input status “Reserve 4” (JP8/5)

Exciters exchange relay status (Off = exciter

1 on air)

Exciter 1 interlock status (Off = RF power enabled)

Exciter 2 interlock status (Off = RF power enabled)

Output Audio Alarm status (JP47/1)

Exciters power supply status (On = power supply enabled)

“Stand by” input line status

“Stand by” output line status from the control unit

Total efficiency of the machine

Menu Control Unit Screen

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6.1.4 Power Supply Menu

Information menu showing the status of the Power Supply / Rectifier carriage.

Menu Line

Bus Bar

Room T.

Safety

Mains

Trafo-1T

Fuse-1

Trafo2-2T

Fuse-2

C.B. Blower

Supply-1

Supply-2

Blower

Description

Output voltage from the rectifier on the common 80V dc supply bus.

Temperature of the air at the input of the unit

Status of the safety arrest button. On indicates the functioning is enabled, Off means the unit was arrested through the button

Status of the main voltage supply. On indicates that the voltage is within the functioning range of the unit and that the phase sequence is correct

Status of the AC fuses AC low voltage bus bar rectifier and interblock of module 1

Status of the AC fuses AC low voltage bus bar rectifier and interblock of module 1

Stesso significato di Trafo-1T. Quando il carrello alimentatore/rettificatore 2 non è installato, viene indicato ===.

Same function as Temp.1. When the supply/ rectifier module 2 is not installed, === is indicated

Status of the magnetothermical “motor save” interruptor of the circuit breaker blower.

Control contactor of module 1

Control contactor of module 2

Control contactor of the power of the blower

Power Supply Screen

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6.1.5 R.F. Combiner Menu

This menu contains the information related to the RF part of the complete transmitter. Here the user will find the most interesting parameters, like the overall emitted RF power and the reflected power.

Menu Line

Fwd

Rfl

Unbal

Rej.lT

Exhaust

S.W.R.

(External) Fwd

(External) Rfl

(External) Unbal

Main Exc

Stdby Exc

Temp

RF-Enb

Aux Fan

SET1

SET2

SET3

Description

Overall emitted RF power of the transmitter

Reflected RF power of the transmitter

Unbalancement RF power: sum of the power dissipated on the internal resistors due to unbalanecement in the RF modules

Temperature of the load resistors dissipating the unbalancement power

Temperature of the exhaust air (top of the transmitter)

Standing Wave Ratio, calculated by the

Control Unit on the basis of the measured forward and reflected power

Forward power of an external transmitter

(when configured for this function)

Reflected power of an external transmitter

(when configured for this function)

Unbalancement power of an external transmitter (when configured for this function)

Output power of the exciter currently on air

(the one connected to the input of the RF modules)

Output power of the exciter currently on the internal dummy load

Status of the temperature alarm (sensor included in the combiner)

RF output enable: “On” means that the RF combiner unit is giving its permission for the regular operation of the transmitter

Switch for an auxiliary fan (not used in the current configurations)

Status of the output “SET1”. See the

Settings Menu

Status of the output “SET2”

Status of the output “SET3”

SET4 Status of the output “SET4”

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6.1.6 R.F. Units Menu

Information menu showing the status of the RF power amplifier modules. It is composed of 10 screens, one for each module, that can be scrolled using the arrow buttons.

Menu Line

Fwd

Rfl

Input

V.P.A.

Driver

MOS N

I. Tot

Eff

Temp

Fuse

Unit. Intl

RF enb.

Description

Measurement of the forward power of the amplifier module

Measurement of the forward power of the amplifier module

Measurement of the driving power at the input of the amplifier module

Measurement supply voltage of the module

(generated from the switching power supply included in each module)

Measurement of the current absorbed by the preamplifier stage

Measurement of the current absorbed by the

MOS N amplifier module (each RF module contains 4 MOS modules)

Measurement of the total current absorbed by the RF module

Efficiency of the amplifier module, as a result of the ratio between the electrical power absorbed and the RF output power

Temperature alarm, Ok or Ko

Status of the fuse of the RF module: Ok or

Ko

State of the RF module interlock microswitch

Enabled of power distribution from part of the module

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6.1.7 Alarms Menu

This screen describes all the registered events which are relevant to determine the probable causes of any dysfunction. The screen is composed of a variable number of pages (up to 10) in function of the number of events occurred. The last events in chronological order are shown in the first page and so on. To shift to the different pages, use the arrow buttons.

Menu Line

Unit

Err

Time

Date

It is not possible to cancel the alarms in the display

Description

Module of the system which generated the failure

Type of failure and description. The type of failure can be W (Wait) - the unit goes in stand-by until the cause of the failure is removed, R (Retry) - the unit is locked for a predefined time lag after which a reset attempt is launched, or F (Fault) - the unit is completely locked and requires the intervention of the user in order to remove the cause of the failure.

Time (hrs and minutes) at which the failure occured

Date at which the failure occured

Menu Alarms Screen

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6.1.8 Service Menu

This menu is normally used during the maintenance operations. When this screen is visualized, the Control Unit checks the status of the modules of the unit more frequently in order to have a visualization of the different parameters as fast as possible. When this menu is entered, all the secondary functions are interrupted, therefore a possible alarm may not be visualized and registered immediately; when exiting this menu all the alarms which were temporarily put in “stand-by” are registered. If the user sets some modules in OFF modality, these will be automatically reactivated when exiting the menu. This menu is deactivated after

60 minutes if no key is selected.

Menu Line

Fwd

Unb

RF UnitN - On

Fwd

Rfl

Description

Forward power globally emitted by the amplifier

Unbalancing power dissipated in the combiner module.

Fields used to switch ON and OFF the amplifier modules. Before the removal of an amplifier module for its replacement or maintenance switch it off with the help of the corresponding line.

Forward power generated by the RF module

Reflect power from the RF module

Service Screen

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6.1.9 Settings Menu

This menu is used for the settings of the unit. It is therefore the menu which is used more often apart from the possible maintenance operations.

Menu Line

Nominal Power

Pwr. Lower

SET1

SET2

SET3

SET4

Exct. Wait time

Description

Setting of the level of nominal power, expressed as a percentage of the maximum power level. This is the level that the

ATUPT10KHR1 must reach when the Power

Nominal button is pressed, except in case of dysfunction.

Setting of the reduced power level, expressed as a percentage of the maximum power level. This is the level that the

ATUPT10KHR1 must reach when the Power

Lower button is pressed, except in case of dysfunction.

Level (Limit) at which the “Power Good”

SET1 is launched. This level is expressed as a percentage of the full-scale to which SET1 is connected, indicated in the column Assign

See SET1

See SET1

See SET1

Delay before assuming the on air exciter is faulty

Address of the unit in the RS485 network

Visualization and setting of the internal clock

Talk Address

Clock

Calendar

L.P. Timer of the unit

Visualization and setting of the internal calendar of the unit

Setting of the automatic power reduction feature: this can be “Auto” (enabled) or

“Manual” (disabled).

The feature consists in reducing the power to the low power level and then returning to the nominal power at fixed times. The start

Write Config and stop times are set in this menu selecting

“Auto”.

Button for the registration of the configurations in each module of the unit.

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6.1.10 Exciters Menu

This menu is used to configure the settings of the exciters.

Menu Line

Main Exc

Stdby Pwr

On Air Exciter

Exct.1

Description

Output power of the exciter currently on air

Output power of the exciter currently on the internal dummy load

Visualization of the “on air” exciter. When positioning the cursor on this line, with the arrow buttons and by pressing Enter, it is possible to operate the switching between the on air exciter and the exciter on dummy load.

Status of the exciter 1. By positioning the cursor on this line with the arrow buttons and by pressing Enter it is possible to switch on and off the exciter.

This is an inhibite (or mute) signal, not a true switch on/off of the exciter.

Exct.2 Same as Exct.1 for the second exciter

Exciters Screen

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6.1.11 Info Menu

This screen informs the user about the configuration of the transmitter.

Menu Line

Type

Talk Addr.

Baud Rate

Power Supply

Exciter

External

Reset Safety

Cfg. N+1

Description

Configuration type (model of the transmitter)

Address of the RS485 port of the transmitter

Baud rate of the serial port

Number of the transformer/rectifier carriages in the transmitter: this can be “Single” or

“Dual”

Number of the exciters in the transmitter: this can be “Single” or “Dual”

Checking of the external Fwd, Rfl, Unbal values (Enabled or Disabled)

Resetting of the machine after a trip caused by the safety button. It can be “Automatic” or

“Manual”

Configuration of the transmitter as a N+1 system

Info Screen

6.1.12 Release Menu

This menu show the address, the kind of configuration, the software version and the hardware version of all the microprocessor boards of the transmitter.

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Release Screen

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6.1.12 Modem Menu

This screen informs the user about the configuration of the optional telemetry.

Modem Screen

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