Vertex Standard 7122B, 7133B user guide
CG-1045
REV D
APRIL 2000
OPERATION AND MAINTENANCE MANUAL
FOR
MODEL 7122B/7133B ANTENNA CONTROL UNIT
INCLUDING UNITS WITH
3 PHASE POLARIZATION MOTORS
Controls & Structures Division
1915 Harrison Road
Longview, Texas 75604
CAUTIONARY NOTICE
Although the manufacturer has attempted to detail in this manual all areas of possible
danger to personnel in connection with the use of this equipment, personnel should
use caution when installing, checking out, operating, and servicing this equipment.
Care should be taken to avoid electrical shock, whether the hazard is caused by
design or malfunction.
The manufacturer is specifically not liable for any damage or injury arising from failure
to follow the instructions contained in this manual or failure to exercise due care and
caution in the installation, operation, checkout, and service of this equipment.
PROPRIETARY NOTICE
All computer software, technical data, or other information pertaining to the
equipment covered by this manual is considered proprietary by Vertex
Communications Corporation. Such information is transmitted in this manual or
related documents for the benefit of Vertex customers and is not to be disclosed to
other parties verbally or in writing without prior written approval of Vertex
Communications Corporation. Additionally, this manual may not be reproduced in
whole or in part without written consent from Vertex Communications Corporation.
WARNING
THE CURRENTS AND VOLTAGES IN THIS EQUIPMENT ARE
DANGEROUS. PERSONNEL MUST AT ALL TIMES OBSERVE
SAFETY REGULATIONS.
PLEASE READ THE FOLLOWING PRECAUTIONS
This manual is intended as a general guide for trained and qualified personnel who are
aware of the dangers of handling potentially hazardous electrical and electronic
circuits. This manual is not intended to contain a complete statement of all safety
precautions that should be observed by personnel in using this or other electronic
equipment.
The installation, operation, maintenance, and service of this equipment involves risks
both to personnel and equipment and must be performed only by qualified personnel
exercising due care. Vertex Communications Corporation shall not be responsible for
injury or damage resulting from improper procedures or from the use of improperly
trained or inexperienced personnel performing such tasks.
During installation and operation of this equipment, local building codes and fire
protection standards must be observed.
WARNING
ALWAYS DISCONNECT POWER BEFORE OPENING COVERS,
DOORS, ENCLOSURES, GATES, PANELS, OR SHIELDS.
ALWAYS USE GROUNDING STICKS AND SHORT OUT HIGH
VOLTAGE POINTS BEFORE SERVICING. NEVER MAKE
INTERNAL ADJUSTMENTS OR PERFORM MAINTENANCE OR
SERVICE WHEN ALONE OR FATIGUED.
Do not remove, short-circuit, or tamper with interlock switches on access covers, doors,
enclosures, gates, panels, or shields. Keep away from live circuits. Know your equipment
and don't take chances.
WARNING
IN CASE OF EMERGENCY BE SURE THAT POWER IS DISCONNECTED.
TABLE OF CONTENTS
PARAGRAPH
NO.
1.1 The Purpose of the 7122B/7133B Manual 1-1
1.2 General Information about the 7122B/7133B ACU 1-1
1.2.1 System Hardware 1-1
1.2.1.1 7122B/7133B ACU 1-1
1.2.1.2 7122B/7133B OU Drive Cabinet 1-2
2.0 Installation and Initial Set-Up 2-1
2.1 Overview 2-1
2.2 Mechanical Installation 2-1
2.2.1 Antenna Mounted Components 2-1
2.2.2 Installing the 7122B/7133B ACU 2-1
2.3 System Cabling 2-2
2.4 Display Offset Adjustment 2-4
3.0 Operation 3-1
3.1 7122B/7133B ACU 3-1
TITLE PAGE NO.
3.2 7122B/7133B OU 3-1
3.2.1 7122B/7133B OU Controls 3-2
4.0 Acceptance Test Procedure 4-1
4.1 Preliminary Information 4-1
4.2.1 Maintenance Mode 4-1
4.2.2 Remote Mode 4-2
5.0 Recommended Spares 5-1
6.0 Engineering Drawings 6-1
Appendix A Acronyms and Abbreviations A-1
Appendix B Technical Support B-1
INTRODUCTION
1.0 INTRODUCTION
1.1 The Purpose of the 7122B/7133B Manual
The purpose of this manual is to provide the user with the information necessary to
install and operate the Vertex Model 7122B/7133B Antenna Control Unit (ACU). This
manual contains only the information related to the 7122B/7133B ACU and contains
only limited information about the antenna structure or other equipment peripheral to
the 7122B/7133B.
1.2 General Information about the 7122B/7133B ACU
The 7122B/7133B controller series is designed for applications requiring high
reliability and low cost. The readout system provides 0.02E resolution, using
brushless 2.5 KHz resolvers. The motor drive circuit provides the operator with single
speed, real-time drive control.
The 7133B controls the elevation and azimuth movement of the antenna and the
polarization movement of the feed horn. The 7122B controls only the elevation and
azimuth movement of the antenna. Otherwise, the 7122B and the 7133B are
identical.
1.2.1 System Hardware
The 7122B/7133B controller consists of the following subsystems:
Model 7122B/7133B ACU
·
Model 7122B/7133B OU
·
Resolver
·
7122 and 7133 are Vertex's basic system model numbers. ACU is the acronym for
antenna control unit, which refers to the 19-inch rack-mountable unit used in the
shelter or other antenna control room. OU is the acronym for outside unit, which
refers to the weather-proof cabinet typically installed near the antenna.
The ACU interfaces with starters and motors for elevation, azimuth, and polarization
positioning of the antenna. The elevation, azimuth, and polarization limit interfaces
are normally closed switches that open upon engagement.
1.2.1.1 7122B/7133B ACU
The primary components of the 7122B/7133B ACU are:
Front Panel
·
1 - 1
INTRODUCTION
Power Supply
·
Resolver/Digital PC Board
·
Display Board Assembly
·
Binary/BCD Board Assembly
·
Switch PC Board Assembly
·
The front panel contains the POWER ON/OFF switch that controls the power to the
circuit boards on the 7122B/7133B ACU.
The 7122/7133 Controller Resolver to Digital PC Board Assembly (800029) converts
the analog output of the elevation, azimuth, and polarization resolvers to digital.
The 7122/7133 A, B, and C Antenna Control Unit Front PC Board (800026) contains
seven-segment displays and associated circuitry for display of the elevation, azimuth,
and polarization positions of the antenna.
The Front Switch PC Board (800032 - 7133B; 800050 - 7122B) contains threeposition momentary on/off switches that control the elevation, azimuth, and
polarization movement of the antenna.
1.2.1.2 7122B/7133B OU Drive Cabinet
The 7122B/7133B OU consist of the following major components:
Swing-Out Panel
·
MAIN POWER Circuit Breaker
·
EMERGENCY STOP Switch
·
24 VDC Power Supply
·
Reversing Starters
·
Relay PC Board
·
The swing-out panel allows the operator to control antenna movement from the
proximity of the antenna.
The MAIN POWER circuit breaker controls the main power and the power to the OU
cabinet and the limit switches.
The EMERGENCY STOP switch, when pressed, removes power from the drive
motors.
The 24 VDC power supply provides operating voltage to the 7122B/7133B OU
antenna drive relay circuit board.
1 - 2
INSTALLATION
2.0 INSTALLATION AND INITIAL SET-UP
WARNING
Always disconnect power before opening covers, doors,
enclosures, gates, panels, or shields. Never make internal
adjustments or perform maintenance or service when alone
or fatigued. Main power connections and grounding should
be performed by qualified personnel. Keep away from live
circuits; know your equipment and don't take chances. In
case of emergency, be sure to disconnect power before
touching equipment or personnel in contact with the
equipment.
2.1 Overview
This section of the manual provides the information necessary for the installation and
initial set-up of the 7122B/7133B ACU.
The system installation and set-up instructions are presented in the following general
order.
Mechanical Installation
·
System Cabling
·
Power-Up and Set-Up
·
2.2 Mechanical Installation
2.2.1 Antenna Mounted Components
Proper and complete installation of the 7122B/7133B outside unit, motors, resolvers,
and limit switches is imperative for safe and accurate system operation. Refer to the
mechanical drawings supplied in the drawing package separate from this manual for
mechanical interface details and complete this phase of installation first.
2.2.2 Installing the 7122B/7133B ACU
Using four No. 10 screws, mount the 7122B/7133B ACU inside a standard 19-inch
EIA rack. No added support is necessary.
2.3 System Cabling
Refer to Figure 2-1 for a block diagram of the 7122B/7133B Antenna Control
System. The following paragraphs describe the cabling and list the connections for
the 7122B/7133B. Cables must be connected from the antenna to the OU, from the
OU to the 7122B/7133B ACU, and from the antenna resolvers to the ACU. Be sure
the cables are connected correctly and securely because proper functioning of the
system during power-up is important for the protection of the equipment and for
timely completion of the installation.
2 - 1
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