R.V.R. Elettronica HC5-10 Manuale utente

Marca: R.V.R. Elettronica

Modello: HC5-10

Tipo: Manuale utente

Manufactured by Italy

HC5-10

User Manual

Volume 1

HC5-10 - Manuale Utente

Versione 1.0

R.V.R. Elettronica SpA

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

Telefono: +39 051 6010506

Fax: +39 051 6011104

Email: info@rvr.it

Web: www.rvr.it

Tutti i diritti sono riservati. Stampato in Italia. Nessuna parte di questo

manuale può essere riprodotta, memorizzata in sistemi d’archivio o

trasmessa in qualsiasi forma o mezzo, elettronico, meccanico, foto-

copia, registrazione o altri senza la preventiva autorizzazione scritta

del detentore del copyright.

Nome File: HC5-10_EN.P65

Versione: 1.0

Data: 26/03/2004

Storia del documento

Data Versione Ragione Autore

26/03/04 1.0 Prima versione J.Berti

HC5-10

iManuale Utente Rev. 1.0 - 26/03/04

Table of Contents

1. Preliminary Instructions 1

2. Warranty 1

3. First Aid 2

3.1 Treatment of electrical shocks 2

3.2 Treatment of electrical Burns 3

4. General Description 4

5. Quick reference to instalaltion and use 6

5.1 Preparation 6

5.2 Operation 7

5.3 Software 14

6. Controls, Indicators and Connectors 21

6.1 Front Panel 21

6.2 Rear Panel 23

6.3 Connectors Description 24

7. Technical Specifications 26

7.1 Dimensional and Environmental Specifications 26

7.2 Electrical Specifications 26

8. Electrical description 27

8.1 Modules Identificarion (upper view) 28

8.2 Modules Identificarion (bottom view) 29

9. Theory of Operation 30

9.1 Operating Blocks 30

9.2 Phase Regulation between the several Amplifiers 32

10. Maintenance Procedures 34

10.1 Routine Maintenance 34

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1 / 34User Manual Rev. 1.0 - 26/03/04

1. Preliminary Instructions

This manual is written as a general guide for those having previous knowledge and experience with this kind of

equipment, well conscious of the risks connected with the operation of electrical equipment.

It is not intended to contain a complete statement of all safety rules which should be observed by personnel in using this

or other electronic equipment.

The installation, use and maintenance of this piece of equipment involve risks both for the personnel performing them and

for the device itself, that shall be used only by trained personnel.

R.V.R. Elettronica SpA doesn’t assume responsibility for injury or damage resulting from improper procedures or

practices by untrained/unqualified personnel in the handling of this unit.

Please observe all local codes and fire protection standards in the operations of this unit.

WARNING: always disconnect power before opening covers or removing any part of this unit. Use appropriate grounding

procedures to short out capacitors and high voltage points before servicing.

WARNING: this device can irradiate radio frequency waves, and if it’s not installed following the instructions contained

in the manual and local regulations it could generate interferences in radio communications. This is a "CLASS A"

equipment. In a residential place this equipment can cause hash. In this case can be requested to user to take the

necessary measures.

R.V.R. Elettronica SpA reserves the right to modify the design and/or the technical specifications of the product and this

manual without notice.

2. Warranty

Any product of R.V.R. Elettronica is covered by a 24 (twenty-four) month warranty.

For components like tubes for power amplifiers, the original manufacturer’s warranty applies.

R.V.R. Elettronica SpA extends to the original end-user purchaser all manufacturers warranties which are transferrable

and all claims are to be made directly to R.V.R. per indicated procedures.

Warranty shall not include:

1 Damage while the equipment is being shipped to R.V.R. for repairs;

2 Any unauthorized repair/modification;

3 Incidental/consequential damages as a result of any defect

4 Nominal non-incidental defects

5 Re-shipment costs or insurance of the unit or replacement units/parts

Any damage to the goods must be reported to the carrier in writing on the shipment receipt.

Any discrepancy or damage discovered subsequent to delivery, shall be reported to R.V.R. Elettronica within 5 (five)

days from delivery date.

To claim your rights under this warranty, you shold follow this procedure

1 Contact the dealer or distributor where you purchased the unit. Describe the problem and, so that a possible easy

solution can be detected.

Dealers and Distributors are supplied with all the information about problems that may occur and usually they can

repair the unit quicker than what the manufacturer could do. Very often installing errors are discovered by dealers.

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2 If your dealer cannot help you, contact R.V.R. Elettronica and explain the problem. If it is decided to return the unit to

the factory, R.V.R. Elettronica will mail you a regular authorization with all the necessary instructions to send back

the goods.

3 When you receive the authorization, you can return the unit. Pack it carefully for the shipment, preferably using

the original packing and seal the package perfectly. The customer always assumes the risks of loss (i.e., R.V.R. is

never responsible for damage or loss), until the package reaches R.V.R. premises. For this reason, we suggest you

to insure the goods for the whole value. Shipment must be effected C.I.F. (PREPAID) to the address specified by

R.V.R.’s service manager on the authorization

DO NOT RETURN UNITS WITHOUT OUR AUTHORIZATION AS THEY WILL BE REFUSED

4 Be sure to enclose a written technical report where mention all the problems found and a copy of your original

invoice establishing the starting date of the warranty.

Replacement and warranty parts may be ordered from the following address. Be sure to include the equipment model

and serial number as well as part description and part number.

R.V.R. Elettronica SpA

Via del Fonditore, 2/2c

40138 BOLOGNA

ITALY

Tel. +39 051 6010506

3. First Aid

The personnel employed in the installation, use and maintenance of the device, shall be familiar with theory and practice

of first aid.

3.1 Treatment of electrical shocks

3.1.1 If the victim is not responsive

Follow the A-B-C's of basic life support

• Place victim flat on his backon a hard surface.

• Open airway: lift up neck, push forehead back (Figure 1).

• clear out mouth if necessary and observe for breathing

• if not breathing, begin artificial breathing (Figure 2): tilt head, pinch nostrils, make airtight seal, four quick full

breaths. Remember mouth to mouth resuscitation must be commenced as soon as possible

Figure 1 Figure 2

• Check carotid pulse (Figure 3); if pulse is absent, begin artificial circulation (Figure 4) depressing sternum (Figure

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3 / 34User Manual Rev. 1.0 - 26/03/04

Figure 3 Figure 4 Figure 5

• In case of only one rescuer, 15 compressions alternated to two breaths.

• If there are two rescuers, the rythm shall be of one brath each 5 compressions.

• Do not interrupt the rythm of compressions when the second person is giving breath.

• Call for medical assistance as soon as possible.

3.1.2 If victim is responsive

•Keep them warm

• Keep them as quiet as possible

• Loosen their clothing (a reclining position is recommended)

• Call for medical help as soon as possible

3.2 Treatment of electrical Burns

3.2.1 Extensive burned and broken skin

•Cover area with clean sheet or cloth

• Do not break blisters, remove tissue, remove adhered particles of clothing, or apply any salve or ointment.

• Treat victim for shock as required.

• Arrange transportation to a hospital as quickly as possible.

• If arms or legs are affected keep them elevated

If medical help will not be available within an hour and the victim is conscious and not vomiting, give him a weak solution

of salt and soda: 1 level teaspoonful of salt and 1/2 level teaspoonful of baking soda to each quart of water (neither hot

or cold). Allow victim to sip slowly about 4 ounces (half a glass) over a period of 15 minutes. Discontinue fluid if vomiting

occurs.

DO NOT give alcohol

3.2.2 Less severe burns

•Apply cool (not ice cold) compresses using the cleansed available cloth article.

• Do not break blisters, remove tissue, remove adhered particles of clothing, or apply salve or ointment.

• Apply clean dry dressing if necessary.

• Treat victim for shock as required.

• Arrange transportation to a hospital as quickly as possible

• If arms or legs are affected keep them elevated.

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4. General Description

The HC5-10, produced by R.V.R. Elettronica, is a hybrid coupler at 5 way that allows

to join up to 5 R.F. power amplifier. Its function is to split the RF signal coming from a

RF exciter, adjusting the relative phases, to pass them through five external RF power

amplifiers and then to combine the output of the amplifiers into a single RF amplified

signal to be forwarded to the antenna output.

The HC5-10 is produced in the version for five transmitters of 2 kW max output power

everyone (for example PJ2000M-C), for a total nominal power of 10 kW.

Exciter

HC5

Amplifier #4

Amplifier #5

Spl

Amplifier #2

Amplifier #1

Amplifier #3

The nominal working principle of a FM transmitter based on a hybrid coupler scheme

like HC5-10, foresees that the used amplifiers shall produce the same RF power

that will be added with the same phase. Possible differences in the power level or

phase of the amplifiers generate the so-called unbalancement power that is in part

dissipated inside the coupler. The HC5-10 guarantees the overall working of the

transmitter even if one of the amplifiers is completely off-service. In such case, the

power generated by the surviving amplifier is routed to the antenna anyway; the other

part of the delivered power (that is unbalancement power) is dissipated inside the

combiner.

The HC5-10 is controlled by a microcontroller system, that includes a LCD display

and a series of keys for the interaction with the user, that realizes the following functions:

• Measurement and visualization of the coupler’s working parameters

• Activation and deactivation of the power output of the system

• Protection of the coupler with respect to potentially dangerous situations like

exceeding emitted or unbalancement power, overdrive or overtemperature

• Detection of user-settable attention thresholds (e.g. output power being below a

certain value), that are made externally available as digital states on the "telemetry"

connector

• Communications with external devices

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The management software of the HC5-10 is based on a menu system.

The user can navigate through the menu system using four buttons, ESC, move LEFT/

UP, move RIGHT/DOWN and ENTER. A fifth button is used to reset the alarm counters,

if any alarm has been triggered before.

The state of the machine comes indicated from nine LEDs present on the frontal

panel.

A switch on the front panel allows to select the LOCAL or REMOTE working mode:

•LOCAL mode allows to control the machine using the buttons on the front panel,

while remote control (that is using the telemetry connector) is disabled;

•In REMOTE mode, remote control is enabled, while the buttons on the front panel

can be used only to read parameters and not to change them

The LOCAL working mode is signalled by a yellow LED on the front panel being lit.

The different working parameters are made available for the remote control

applications on the telemetry connector, as voltage levels that are proportional to the

value of the parameter under consideration. Digital output signals related to alarms

or warnings are also present on the connector, together with the digital input like ON/

OFF switching or alarms reset.

The HC5 can be connected to the exciter of the transmitter using a “interlock” cable,

so that it is possible for it to deactivate RF power emission in case of misfunctioning

of the transmitting system. An analogous effect can be reached also in case the

exciter misses the interlock functionality, connecting the mains supply of the exciter

to the auxiliary mains plug of the HC5-10 “AUX OUT AC LINE”. This plug is in fact

opened using a relay under the same conditions that cause the activation of the

interlock.

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5. Quick reference to instalaltion and use

This chapter is intended to summarize the necessary points for the installation of the

device. In case any of the arguments is unclear, for example when you use the

combiner for the first time, we suggest to carefully read the whole manual.

5.1 Preparation

Unpack the HC5-10 and before any other operation check the unit for any shipping

damage; in particular, check that all the controls and connectors on the front and rear

panels are in good conditions.

Inside the HC5-10 are inclusive:

•Nr. 1 5-way RF splitter;

•Nr. 1 5-way RF combiner;

•Service electronic circuits that control the entire system composed of HC5-10

with Nr. 5 2kW amplifiers connected (for example PJ2000M-C);

•Connection cables for the RF input signals of each amplifier;

•Connection cables for the RF output signals of each amplifier;

•Connection cables for the signals that exchange the HC5-10 combiner and the

PJ2000M-C amplifier. In the case the cable is not in good conditions or doesn't

come connected, the combined system is not able to manage the various

parameters interconnected correctly. This condition involves a high probability to

create permanent damages to the load of HC5-10.

If it is necessary, check the integrity and the value of the fuse inside the voltage changer

block; the required fuse type is:

•Aux Fuse 10A

•Mains fuse 10A

Connect the RF output cable of the exciter to the N-type input of the splitting section

of the combiner. Connect five cables between the output N connectors of the splitting

section of the combiner and the RF input of five suitable amplifiers. Connect five

cables between the RF output of the amplifiers and the input connectors of the

combining section of the coupler.

Connect the RF output cable of the exciter to the input connector (N type) of the

splitter section of the combiner. Connect each of the five outputs (N type) of the splitter

section with the RF input of the relative power amplifier. Connect the outputs of the

amplifiers (type 7/ 8") to the inputs of the combiner joining section (type 7/ 16").

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7 / 34User Manual Rev. 1.0 - 26/03/04

Connect the connector (type 1+5/ 8") of general RF output of the combiner to the

antenna or to a dummy load able to dissipate the power. Connect, through a coaxial

cable, a BNC connectors with a "Alarms/ Interlock"cable to the Interlock connector of

the exciter (you see the scheme included in each station like reference). Connect the

telemetry connector to the "Telemetry" connector of the exciter, if forecasted in the

configuration (see the manual of station).

Connect the feeding cable to the relative MAINS connector on the rear panel.

WARNING: the feeding connector is a bare terminals, make sure that the cable

is not under voltage during the connection.

WARNING: is essential that the machine comes connected correctly to ground

to ensure both the safety of operation as well as the correct working of the

equipment.

5.2 Operation

To perform its intended pourpose, the HC5-10 is always used in a transmitter

comprising an exciter, five RF amplifiers and one RF driver able to furnish an output

power up to 250W, if the exciter doesn't give the output power demand. The HC5-10

verifies the excitation group only for as concern the interruption of RF power and the

power supply.

When the HC5-10 comes put under voltage, verify that the two ON LED are lit. The

LCD display shows a presentatio screen, and after a few seconds it will pass to the

default screen, showing the values of the forward and reflected power.

Switch the exciter on (at its minimum power level) and wait for it to lock on the working

frequency. When the PLL has locked, progressively increase its output power, while

controlling the displays of the exciter, of the amplifiers and of the hybrid coupler.

Keep increasing the exciter output overall output of the combiner reaches the desired

value, that is at most the nominal power rating of the transmitting station.

At this point, it is possible for the user to verify all the working parameters of the

amplifier using the management software.

Normally, the device doesn’t require any human supervision for its normal operation.

If any alarm condition arise, these are automatically managed by the embedded

protection system, and notified to the user with the LEDs on the panel or via messages

on the LCD display.

5.2.1 General behavior with PJ2000M-C

The HC5-10 includes electronic circuits that adjust the complete system of connected

amplifiers, that allows to obtain the following performances:

•Service partial operation, when any connected amplifiers are out of service also.

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•Service partial operation, when only the main power phase remains active on

which are connects the monophase devices also.

•Service total interruption, when the system conditions are incompatible with the

functioning.

The commands that control the system HC5-10 with PJ2000M-C are:

•"ON" command, switch on the complete system.

•"OFF" command, switch off the complete system.

•"Inhibit" command, the system operation is totally suspends until to persists the

signal that drives it.

•"Reset" command, effect one reset of the protections that is propagated for all

the PJ2000M-C apparatuses.

Of norm the system HC5-10 with PJ2000M-C must work with all the apparatuses

setting in "Remote" position. In the case any apparatus is not in the "Remote"

condition, it doesn't constitute a condition of risk of damages to any electric part of all

the system.

When HC5-10 is set in "Remote", then the complete system accepts commands

only from the remote connections.

When HC5-10 is set in "Local" and all PJ2000M-C apparatuses are in "Remote",

then it’s possible to command the complete system from the HC5-10 frontal panel.

When some apparatus was not connected in "Remote," the behavior of that apparatus

is not conforming to the behavior of the others in answered to the orders operated on

the system.

The operation parameters of each apparatus can be seen, in any moment, navigating

through the settable menu with the keys on the frontal panel. This navigation is possible

with the apparatus in "Remote" or in "Local" position.

The commands through keys on frontal panel, instead, are possible only when the

apparatus is in "Local" position.

The need to effect commands only on the amplifiers apparatuses could have utility of

diagnostic character, the normal operation of the apparatuses foresees that they are

set in position "Remote", therefore in condition of answer to the deriving commands

from the HC5-10. The set of the apparatus HC5-10, instead, could be select on the

base of the option foreseen from the plan of the station. The HC5-10 could be

commanded through telemetry or from the operator, in the first case must be set in

"Remote," in the second case in "Local."

When the system works to regime and regularly, then the following indications are

switched on :

•On HC5-10 are been switched on the two green LEDs with "ON" label. When the

apparatus is adjusted up to 10KW RF output, it could be alight the yellow LED

with indication "Over" too. The yellow LED, with "Local" indication, it could be

alight or not alight according to the set planned from the operator.

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•On each PJ2000M-C amplifier are been switched on the two green LEDs with

"ON" label. When the apparatus is adjusted up to 10KW RF output, it could be

alight the yellow LED with indication "Fold Back" too. The yellow LED with "Local"

indication it must be not alight, it is previewed of norm that the amplifiers

apparatuses are always set in "Remote."

5.2.2 General norms of di funzionamento con PJ2000M-C

The normal functioning of the HC5-10 system with PJ2000M-C foresees that the five

amplifiers apparatuses are working with equal output powers and electrical phase of

their signals equalized to the input of the combiner.

Each PJ2000M-C amplifier disposes of power regulation practicable through a

trimmer present on the frontal panel of the RF section. This regulation must be set for

the maximum of the amplifier power adjusting the trimmer completely in clockwise

sense. The equalization of the power of each amplifier comes obtained for effect of

the regulator that it is present on the HC5-10, (trimmer labelled "Power Adjust").

The system is able to distributing a power up to 10KW RF guaranteed in output, but

it has been projected in a such way for work to lower power with an acceptable

electrical efficiency. Each power of output programmed requires a different excitation

power.

In order to use completely the potentialities of the system, it is necessary to make

reference to this small trick: the excitation of RF input must be greater of that it allows

to obtain the regime RF power, this surplus of power must be such to obtain an

output power increased of the quantity described in the following table.

Values table of output power surplus for every regime power value programmed.

Output Power Output Power Surplus

10kW 400W

8kW 800W

6kW 1000W

5kW 1500W

4kW 2000W

3kW 2000W

The system could be adjusted without danger of damages also with an excitation

power scarcely efficiency to obtain the power final programmed (then without surplus),

in this case it is reduced the stability of the RF power output, and is obtained an

electrical efficiency not optimal for lower powers than 10KW.

The electrical phase regulation of the signals of the combined amplifiers, allows to

obtain a heavy reduction of the RF power wasted on the absorbers resistors. This

operation gives the best results if it comes effected when the apparatuses are been

adjusted to the regime power programmed from the regulator located on the frontal

panel of the HC5-10 (Power Adjust).

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The electrical phase of the amplifiers comes optimized in the working frequency

programmed for the transmitter, but there are operational possibility that foresees

that the transmitter could alternatively work on different frequencies, see systems

composed of more transmitters with common reserve. In these cases the regulation

of the electrical phase must be effected considering to get a compromise with working

parameters acceptable for all the possible working frequencies.

This second signals setup, however, allows to get operation values of the system

combined in which the wasted power stays always lower than 2% of the total. The

systems optimized on a single frequency could arrive to wasted powers lower than

0.5%. Is necessary, however, adjust the phase so that the value of wasted power "Rej

PWR" is inferior always than 200W. In contrary case the condition can be introduced

for which the HC5-10 falls in protection with reduction of output power and it cannot

return to full power for the lacked reenter of the conditions that would allow it ("Rej

PWR" it; lesser than 200W).

5.2.3 Behavior of the system in function of the working parameters

The HC5-10 apparatus puts in action various operation modality according to the

different conditions of work in which it is come to be situated. The HC5-10 apparatus

has two groups of disposed fans on the panels and to the inside: ordinary group and

emergency group.

The ordinary group must always work when the apparatus is set in "ON" position and

during the short moments of post-ventilation, the emergency group enters in function

when the total power on the absorbers resistances exceeds 200W and/or when the

temperature of the warmer resistance exceeds 40 °C. When the emergency fans

group enters in function, on the frontal panel of the HC5-10 an yellow LED, with "Fans

On" label, is lit on.

For post-ventilation is understood that the ordinary fans group continues to work for

around 3 minutes after the set in "OFF" position of the HC5-10. Each hour spent in

“OFF" position, the HC5-10 switched on for around 3 minutes the ordinary fans group,

this to remove the heat accumulated to the inside of the circuits. An electronic circuit

check if the fans are regularly feeding, in case of irregularity comes generated an

"Fault" alarm that interrupts the operation of the apparatus without attempts of restart.

This alarm appears on the display and on a red LED positioned between the fans of

the frontal panel.

An advanced measure circuit checks the power value on each of the absorbers

resistances and carries out the sum. This sum is available as measured parameter

on display as "Rej PWR". When the power of one of the absorbers resistances

exceeds the limit of 800W, the HC5-10 reacts reducing the power of all PJ2000M-C

amplifiers to maximum 1KW.

The power reduction reenters only when the total power on absorbers resistances

returns under the 200W. In case that the phase regulation between the apparatuses

is not optimal, with "Rej PWR" value at regime superior to 200W, the system doesn't

return to full power after a phase of protection that foresees the reduction. The reduction

of power comes signalled on the HC5-10 frontal panel with a yellow LED and with the

"Fold Back" label.

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5.2.4 Protection Circuits

The HC5-10 apparatus disposes of protection circuits that arrest temporarily and/or

definitely the functioning of the whole transmitter system.

1) Protection from excessive output forward power "Fwd PWR".

It intervenes at 12.5KW, and it effect until to 8 attempts in the short period; exhausted

the restoration attempts blocks the apparatus definitely, signalling the status with a

"Fault" red LED placed on the frontal panel. If the total of the 8 attempts doesn't

happen within the period of an hour, the counter of the interventions is reset giving

back again to others 8 possibilities of restoration. During the temporary arrest on the

HC5-10 frontal panel appears the yellow LED indication with "Wait" label.

2) Protection from excessive output reflected power "Ref PWR".

It intervenes at 1800W, and it effects until to 8 attempts in the short period, exhausted

the restoration attempts blocks the apparatus definitely signalling the status with a

"Fault" red LED placed on the frontal panel. If the total of the 8 attempts doesn't

happen within the period of an hour, the counter of the interventions is reset giving

back again to others 8 possibility of restoration. During the temporary arrest on the

HC5-10 frontal panel appears the yellow LED indication with "Wait" label.

3) Protection from excessive excitement input power "Inp PWR".

It intervenes at 250W, and it effects until to 8 attempts in the short period, exhausted

the restoration attempts blocks the apparatus definitely signalling the status with a

"Fault" red LED placed on the frontal panel. If the total of the 8 attempts doesn't

happen within the period of an hour, the counter of the interventions is reset giving

back again to others 8 possibility of restoration. During the temporary arrest on the

HC5-10 frontal panel appears the yellow LED indication with "Wait" label.

4) Protection from excessive Rejected power “Rej PWR”.

It intervenes at 1650W, and it effects until to 8 attempts in the short period, exhausted

the restoration attempts blocks the apparatus definitely signalling the status with a

"Fault" red LED placed on the frontal panel. If the total of the 8 attempts doesn't

happen within the period of an hour, the counter of the interventions is reset giving

back again to others 8 possibility of restoration. During the temporary arrest on the

HC5-10 frontal panel appears the yellow LED indication with "Wait" label.

5) Protection from excessive temperature on at least one of the 5 "Temp"

absorber resistances.

It intervenes at 80°C and it maintains until that the value has exceeded the threshold,

when the value descends again under the limit, the functioning returns normal.

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6) Protection of electric net feeding "Mains."

It intervenes when the mains voltage that feeds the apparatus HC5-10 exceeds the

limits of ± 20% and the value until to that is maintained is outside from the limit interval,

returns normal the operation when the value is within the limits interval.

5.2.5 Functioning Anomalies

Some operational conditions could cause a way of work of the apparatus not optimal.

Anomaly: When at least one of the PJ2000M-C amplifiers doesn't disburse the

same power of the others, the power on "Rej PWR" absorbers resistances could

exceed the threshold value of 200W. If during the operational period of the transmitter,

a situation is verified that involves the intervention of the protection with the power

reduction (es.: one of the amplifiers suspends his operation temporarily, while the

others continues to work), in this case the system with HC5-10 doesn't return to the

power value of RF out precedent to this event.

Remedy: Reduce the power of all the transmitter adjusting the trimmer "Power Adjust",

on the HC5-10 frontal panel, until to obtain a value of "Rej PWR" inferior to 200W.

Anomaly: When the signal phase regulation of the 5 amplifiers is not optimized, the

power on resistances absorbers "Rej PWR" it could exceed the value of 200W. If

during the operating period of the transmitter, a situation is verified that involves the

intervention of protection with power reduction (es.: one of the amplifiers it suspends

its operation temporary, while the others continues to work), in this case the system

with HC5-10 doesn't return to the power value of RF out precedent to this event.

Remedy: Regulate the signals phase of the of the amplifiers until to obtain a value

of "Rej PWR" inferior to 200W.

When one of the amplifiers is set in "Local" position, its way of work is differentiated

from the way of the other amplifiers.

When it comes controled a set of "OFF" acting on HC5-10, the amplifier in "Local"

reacts with a set of "Inhibit", instead that "OFF." The situation doesn't constitute risk

of damage for the whole system, only an imperfection of form.

When it comes controled a set of "Reset" of protections acting on the command of

HC5-10, the amplifier in "Local" it doesn't effect his reset.

When the amplifier set in "Local" is in position "OFF," isn’t possible change its position

to "ON" acting through the commands on HC5-10.

When the amplifier set in "Local" it comes commuted in "Remote", this aligns itself to

the set planned from the commands operated on HC5-10.

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When left one phase of the mains power, that is not what it feeds the HC5-10, the

transmitter reduces its RF output power to a value that doesn't exceed the 5KW. If the

power of programmed regime is inferior to the value of 5KW, doesn't happen any

reduction.

When left two phases of mains power, but stays the phase that feeds the HC5-10, the

transmitter reduces its RF output power to a value that doesn't exceed 1KW. If the

power of programmed regime is inferior to the value of 1KW, doesn't happen any

reduction.

5.2.5 Risks for the HC5-10 system with PJ2000M-C

Some operational situations are potentially harmful for some part of the system.

When the cable of interconnection of the signals of command doesn't connect all the

apparatuses of the system, the amplifiers not connected doesn't react the deriving

commands from the HC5-10 apparatus . This constitutes possible cause of permanent

damages to the HC5-10.

If the connection of the neutral of the mains power stops in any part of the electric

installation, inside or outside of the apparatus, are possible permanent SERIOUS

DAMAGES to all the apparatuses of the system.

The apparatus HC5-10 MUST be connected to its driver/ exciter apparatus through

a cable that allows the interrupt of the oiperation in case of intervention in protection.

This connection could be of two types:

•Signal of low voltage that cuts off the power of the driver/exciter system.

•Feeding of the exciter connected to the plug of mains voltage foreseen, and

available on the rear panel.

The first solution is indispensable when HC5-10 system with PJ2000M-C is connected

to the telemetry, whose circuits are install on the exciter.

If at least one of the two connections doesn't come done, are possible permanent

damages to the HC5-10.

The RF power cables that connect the output of each PJ2000M-C amplifier with the

HC5-10 combiner must be well locked. If the contact between the connectors is not

correct, leaks of energy in RF could be verified. This energy has the power to influence

dangerously on the behavior of electric circuits of other apparatuses in the vicinities

of the transmitter beyond that on the same transmitter. The power in game on these

connections is potentially able to generate overheatings with possible fire of the cables.

WARNING: The interconnection cables between amplifiers and HC5-10

contains TEFLON, the combustion of the TEFLON generates HIGHLY TOXIC

GAS for each living being.

The amplifier requires high values of current from the mains. If the cables that furnish

the electric general feeding are not well locked, fires could be verified.

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14 / 34 User ManualRev. 1.0 - 26/03/04

5.2.6 Risks for the personnel

The system HC5-10 with PJ2000M-C amplifiers could also work when one or

more amplifiers have been physically removed from the system.

For the same nature of the type of combiner, the transmitter in RF power it is

possible [potenzialmente] effect the removal of an apparatus maintaining in

operation the transmitter in RF power, without generated signals come of

overloaded that interrupts the functioning of it. Because the physical removal

of an amplifier happens through the [maneggiamento] of the connectors of

RF power connected to the amplifier, the operator should handle points where

it is present RF energy that doesn't come interrupted from circuits of

protection.

For the nature of the adopted combiner type , the removal of an apparatus is

potentially possible maintaining in function the transmitter in RF power,

without that come generated signals of overload that interrupts the operation.

Because the physical removal of an amplifier happens through the handling

of the RF power connectors connects to the amplifier, the operator would

have handle points where is present RF energy that does not come

interrupted from protection circuits.

In theory the values of RF power in these points are low, but for effect of the

maladjustment of RF impedance that the handling could cause, the power in

the connectors could go up until to very dangerous values.

These operations, therefore, are to AVOID ABSOLUTELY !

5.3 Software

This chapter describes the way the microprocessor system controls the hybrid

coupler, and how the user can interact with it.

Note that the user can give commands to the device only when it's set in LOCAL

mode using the switch on the front panel. Otherwise, the user will only be allowed to

read the parameters, but not to change any of them.

The management of the HC5-10 is performed by a generic software used in different

classes of equipment produced by R.V.R. Elettronica SpA, like the HC combiners or

the RF amplifiers PJ500M-C and PJ1000M.

For this reason, some options that are related to other kinds of devices are deactivated

in the software version that is installed in the HC5-10 (see for example the P.A. menu).

Note that some of the parameters that are measured and can be read may be, in

some circumstances, not available. This situation mostly arises when, for physical

reasons, the measured values are not significant to be used in the control software.

HC5-10

15 / 34User Manual Rev. 1.0 - 26/03/04

When the value for a parameter is not available for such reasons, it's substituted with

the symbol “==”.

At power on, the LCD display will show the following presentation screen, indicating

the name of the device and informations regards the actual release software (SW)

and hardware (HW):

After a few seconds, the main screen will be displayed, reporting the values od

Forward power and Reflected power:

The management software will remain indefinitely in this default screen, until the user

pushes the ESC button.

Pushing the ESC button, the user will be presented with the menu selection screen,

from which the other screens can be accessed:

Pushing again the ESC button, the software goes back to the default screen.

To enter into one of the submenus, just select the corresponding name (that will be

indicated by a flashing underscore) with the LEFT and RIGHT buttons, and then push

ENTER.

5.3.1 Function menu (Fnc)

From this menu, the user can “switch” ON and OFF the hybrid coupler.

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16 / 34 User ManualRev. 1.0 - 26/03/04

The result of this command is that when the HC5-10 is put in OFF mode, the inner

conductor of the “Alarm” connector is shorted to ground, so that the exciter is put in

stand-by mode (this will happen only if provided with an interlock connector, and if

correctly connected with the hybrid coupler). At the same time, the auxiliary mains

output is opened, so that if an exciter is connected to it, il will be shut off.

Whe the hybrid coupler is switched OFF, the software waits a few minutes to permit

the proper cooling of the device, and then sends a signal to the relays of the blowers

to turn them off too.

Each two hours, while the machine is OFF, the software enables the blowers for a

while to dissipate the heat generated by the circuitry and to avoid possible

malfunctions of the blowers due to long inactivity periods.

Switching ON again the hybrid coupler, the interlock circuit is opened, reenabling the

power emission in the connected exciter, the auxiliary mains plug supply is powered

and the blowers are restarted.

5.3.2 Power menu (Pwr)

This multi-line scrollable menu allows the user to read all the measurements related

to the behaviour of the power section of the combiner:

•Forward Power (Fwd Pwr)

•Reflected Power (Rfl Pwr)

•Standing Wave Ratio (SWR) (Not active)

•Input Power (Inp Pwr)

•Reject SWR (Rej SWR)

Depending on the configuration of the machine, some of the measures could be

deactivated.

The complete aspect of the screen is the following figure (please note that only two

lines at a time are visible, use the UP and DOWN buttons to scroll):

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