Nautel VS300 Bedienungsanleitung

VS300 Transmitter

Operations and Maintenance

Manual

Document:NHB-VS300-OPS

Issue: 8.0 2016-03-01

Status: Standard

Nautel Limited

10089 Peggy’s Cove Road

Hackett’s Cove, NS Canada B3Z 3J4

Phone: +1.902.823.3900 or

Toll Free: +1.877.6NAUTEL (6628835) (Canada & USA only)

Fax: +1.902.823.3183

Nautel Inc.

201 Target Industrial Circle

Bangor, Maine USA 04401

Phone: +1.207.947.8200

Fax: +1.207.947.3693

Customer Service (24 hour support)

+1.877.628.8353 (Canada & USA only)

+1.902.823.5100 (International)

Email: [email protected]

Web: www.nautel.com

The comparisons and other information provided in this document

have been prepared in good faith based on publicly available

information. The reader is encouraged to consult the respective

manufacturer's most recent published data for verification.

VS300 Operations and Maintenance Manual Table of contents

Page v

Contents

Release control record vii

Description 1-1

Ac-dc power stage 1-1

Exciter/control stage 1-3

RF drive stage 1-4

RF power stage 1-4

Operating the transmitter 2-1

User Interfaces 2-9

Viewing Transmitter Log 2-23

Viewing AUI Tool Menu Panels 2-30

Viewing Real-Time Meters 2-47

Managing Presets 2-54

Enabling Remote Control 2-97

Resetting Alarms 2-97

Viewing Transmitter Status 2-98

System Settings 2-99

System Settings - Front Panel UI 2-112

Setting User Accounts 2-123

User Settings - AUI 2-126

User Settings - Front Panel UI 2-154

Configuring Remote Inputs and Outputs 2-164

Scheduler 2-178

Audio Player 2-181

Enabling and Operating the Orban Audio Processor 2-186

VS300 Operations and Maintenance Manual Table of contents

Page vi Issue 8.0 2016-03-01

Routine maintenance 3-1

Scheduled maintenance 3-1

Performing on-air checks 3-3

Replacing the exciter/control PWB battery 3-4

Non-standard maintenance 4-1

Upgrading software 4-1

Configuring an audio loss backup preset 4-5

List of terms 5-1

VS300 Operations and Maintenance Manual

Issue 8.0 2016-03-01 Page vii

Release control record

Issue Date Reason

8.0 2016-03-01 Hardware Release 8 (NARF64G and NARF64G/01).

Supports software version VS SW 4.3 and higher.

VS300 Operations and Maintenance Manual

Page viii Issue 8.0 2016-03-01

VS300 Operations and Maintenance Manual Description

Issue 8.0 2016-03-01 Page 1-1

Section 1: Description

Refer to the functional block diagram: Block Diagram - VS300 Transmitter - see page 1-7.

This section provides a high-level description of the transmitter’s key sections. The transmitter

circuitry is subdivided into four basic stages:

•Ac-dc power stage

•Exciter/control stage - see page 1-3

•RF drive stage - see page 1-4

•RF power stage - see page 1-4

VS300 electrical schematics

Some descriptions in this section refer to electrical schematics (SD-#s) . These are located in

Section 5 of the VS300 Troubleshooting Manual.

Ac-dc power stage

See also electrical schematic Figure SD-1.

The ac-dc power stage converts the ac power source to a positive dc voltage (PA volts) for the

transmitter's pre-amp/IPA PWB and PA PWBs. The transmitter accepts a 1-phase ac input voltage

that is between 180 and 264 V ac (208 V ac nominal).

The ac-dc power stage provides +48 V to operate the RF power stage’s cooling fan as well as the low

level dc voltages (+15 V and +5 V) for the control/monitoring circuitry used throughout the

transmitter.

The ac-dc power stage consists of ac power entrance U1, circuit breaker CB1, power supply module

U2, LVPS module U3, +48 V power supply module U4 and PS distribution PWB A2.

VS300 Operations and Maintenance Manual Description

Page 1-2 Issue 8.0 2016-03-01

Power supply module

See also electrical schematic Figure SD-1. Power supply module U2 converts the ac input voltage to a

regulated dc supply (PA volts) for the PA PWB in the RF power stage. The power supply module is

rated for a nominal 2000 W and provides an output voltage between 7 and 53 V (typically 48 V). The

module regulates the output voltage based on a PA Volts Control input from the exciter/control PWB

(A1). The module has a built-in cooling fan, senses excessive temperature conditions, and applies a PS

Temp alarm signal to the exciter/control PWB. The module also senses out-of-regulation on the ac

input and dc output, and applies PS Ac Fail and PS Fail alarm signals to the exciter/control PWB. All

three alarm conditions cause the power supply to shut itself down, thus inhibiting the transmitter's

RF output.

LVPS module

See also electrical schematic Figure SD-1. The LVPS module (U3) converts the ac input voltage to the

regulated low voltage dc supplies. The +5 V and +15 V regulated outputs of the supply are applied

throughout the transmitter.

+48 V power supply

See also electrical schematic Figure SD-1. The +48 V power supply module (U4) converts the ac input

voltage to a regulated +48 V dc supply for the pre-amp PA PWB, and the cooling fan.

PS distribution PWB

See also electrical schematics Figures SD-1 and SD-3. The PS distribution PWB (A2) interfaces

between the dc power supplies (power supply module, +48 V supply and LVPS) and the rest of the

transmitter. It distributes the power supply module output to the PA PWB and distributes the +48 V

output to the pre-amp PWB and the cooling fan.

Dc current samples of the PA and pre-amp power supplies are measured on the PS distribution PWB

and provided to the exciter/control PWB over an SPI bus.

Status and alarm outputs from the power supply module (U2), consisting of PS Present, PS Ac Fail, PS

Temp and PS Fail, are applied to the PS distribution PWB and provided to the exciter/control PWB

over an SPI bus.

A fan enable circuit on the PS distribution PWB controls the application of +48 V to the cooling fan.

The exciter/control PWB (A1) provides a Fan Enable signal that enables or disables the fan voltage

when the RF power stage is on or off, respectively.

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