Calian SatService sat-nms ACU-ODU-DC User manual
Antenna Controller
sat-nms ACU-ODU-DC
User Manual
Version 5.0.002
© Copyright
SatService Gesellschaft für Kommunikationssysteme mbH
Hardstrasse 9
D-78256 Steisslingen
satnms-support@satservicegmbh.de
www.satnms.com
www.satservicegmbh.de
Tel +49 7738 99791-10
Table Of Contents
1Table Of Contents ...............................................................................................................................
3sat-nms ACU-ODU DC Version User Manual ....................................................................................
41 Introduction ......................................................................................................................................
62 Safety Instructions ...........................................................................................................................
73 The sat-nms ACU-ODU DC ............................................................................................................
83.1 sat-nms ACU-ODM ...................................................................................................................
83.2 Power supplies for sat-nms ACU-ODM ....................................................................................
93.3 Power supply for motor drivers .................................................................................................
93.4 Motor drivers ..............................................................................................................................
103.5 Circuit breakers .......................................................................................................................
113.6 Contactor .................................................................................................................................
113.7 Terminals .................................................................................................................................
113.8 Heater ......................................................................................................................................
113.9 Optional air ventilation .............................................................................................................
114 Installation ......................................................................................................................................
114.1 Mechanical installation .............................................................................................................
124.2 Interfaces to the Antenna, Pin descriptions .............................................................................
124.2.1 Angle encoder connection .................................................................................................
144.2.2 Limit switch and emergency switch connection ...............................................................
154.2.3 Motors connection .............................................................................................................
154.2.4 Mains connection ..............................................................................................................
164.2.5 Ethernet connection ..........................................................................................................
164.3 Start-up ....................................................................................................................................
164.3.1 Setting the IP Address .......................................................................................................
184.3.2 Limit switches ...................................................................................................................
184.3.3 Angle detectors .................................................................................................................
184.3.4 Motors ...............................................................................................................................
194.3.5 Pointing/ Tracking ..............................................................................................................
194.3.6 Backup of ACU settings ....................................................................................................
205 Operation .......................................................................................................................................
205.1 The Web-based User Interface ...............................................................................................
225.2 Antenna Pointing ......................................................................................................................
245.3 Target Memory .........................................................................................................................
255.4 Tracking Parameters ...............................................................................................................
275.5 Test Page ................................................................................................................................
295.6 Setup .......................................................................................................................................
345.7 Handheld Terminal ...................................................................................................................
356 Frontpanel operation ......................................................................................................................
376.1 Display mode ..........................................................................................................................
376.2 The main menu .......................................................................................................................
386.3 Select targets ..........................................................................................................................
386.4 Set tracking mode ...................................................................................................................
386.5 Step move ...............................................................................................................................
396.6 Jog mode .................................................................................................................................
396.7 Standby ...................................................................................................................................
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 1/67
396.8 Set az, el, pl by editing Numeric Parameters .........................................................................
407 Remote Control .............................................................................................................................
407.1 General command syntax .......................................................................................................
417.2 The TCP/IP remote control interface ......................................................................................
417.3 The RS232 remote control interface .......................................................................................
427.4 Parameter list ..........................................................................................................................
527.5 One line read via TCP/IP .........................................................................................................
538 Theory of Operation .......................................................................................................................
538.1 Angle Measurement .................................................................................................................
548.2 Pointing / Motor Control ...........................................................................................................
558.3 Steptrack .................................................................................................................................
568.3.1 The sat-nms Steptrack Algorithm .....................................................................................
578.3.2 ACU and Beacon Receiver ...............................................................................................
588.3.3 Smoothing .........................................................................................................................
598.3.4 Steptrack Parameters .......................................................................................................
608.4 Adaptive Tracking ....................................................................................................................
618.4.1 The sat-nms Adaptive Tracking Algorithm ........................................................................
638.4.2 The Tracking Memory .......................................................................................................
648.4.3 Adaptive Tracking Parameters ..........................................................................................
658.5 Program Tracking ....................................................................................................................
658.5.1 Practical Usage .................................................................................................................
668.5.2 File Format ........................................................................................................................
668.6 Faults and Tracking .................................................................................................................
679 Specifications ................................................................................................................................
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 2/67
sat-nms ACU-ODU DC Version User Manual
Version 5.0.002 -- 2021-07-29 -- © 2003-2021 SatService GmbH
Abstract
The sat-nms ACU-ODU is a full featured antenna positioner and as an option antenna
tracking system. The electronics of the sat-nms ACU-ODU is build into an outdoor cabinet.
The protection class of the cabinet is IP66 if no optional air ventilation is installed. So it is no
problem to install it outside without any additional roof.
This document describes how to install, setup and operate this antenna controller.
Table Of Contents
1 Introduction
2 Safety Instructions
3 The sat-nms ACU-ODU DC
3.1 sat-nms ACU-ODM
3.2 Power supplies for sat-nms ACU-ODM
3.3 Power supply for motor drivers
3.4 Motor drivers
3.5 Circuit breakers
3.6 Contactor
3.7 Terminals
3.8 Heater
3.9 Optional air ventilation
4 Installation
4.1 Mechanical installation
4.2 Interfaces to the Antenna, Pin descriptions
4.2.1 Angle encoder connection
4.2.2 Limit switch and emergency switch connection
4.2.3 Motors connection
4.2.4 Mains connection
4.2.5 Ethernet connection
4.3 Start-up
4.3.1 Setting the IP Address
4.3.2 Limit switches
4.3.3 Angle detectors
4.3.4 Motors
4.3.5 Pointing/ Tracking
4.3.6 Backup of ACU settings
5 Operation
5.1 The Web-based User Interface
5.2 Antenna Pointing
5.3 Target Memory
5.4 Tracking Parameters
5.5 Test Page
5.6 Setup
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 3/67
5.7 Handheld Terminal
6 Frontpanel operation
6.1 Display mode
6.2 The main menu
6.3 Select targets
6.4 Set tracking mode
6.5 Step move
6.6 Jog mode
6.7 Standby
6.8 Set az, el, pl by editing Numeric Parameters
7 Remote Control
7.1 General command syntax
7.2 The TCP/IP remote control interface
7.3 The RS232 remote control interface
7.4 Parameter list
7.5 One line read via TCP/IP
8 Theory of Operation
8.1 Angle Measurement
8.2 Pointing / Motor Control
8.3 Steptrack
8.3.1 The sat-nms Steptrack Algorithm
8.3.2 ACU and Beacon Receiver
8.3.3 Smoothing
8.3.4 Steptrack Parameters
8.4 Adaptive Tracking
8.4.1 The sat-nms Adaptive Tracking Algorithm
8.4.2 The Tracking Memory
8.4.3 Adaptive Tracking Parameters
8.5 Program Tracking
8.5.1 Practical Usage
8.5.2 File Format
8.6 Faults and Tracking
9 Specifications
1 Introduction
The sat-nms Antenna Control Unit is an antenna controller / positioner with optional satellite
tracking support. It may be operated as a standalone unit or in conjunction of the sat-nms ACU-
IDU, a PC based indoor unit which offers extended tracking capabilities and a full featured
visualization interface.
The sat-nms ACU is available as:
sat-nms ACU-ODM: only the core-module integrated in a compact case prepared for
mounting on a 35mm DIN rail
sat-nms ACU-ODU: complete antenna controller system for AC- or DC-Motors integrated in
an outdoor cabinet that could be mounted directly to the antenna. By mounting a sat-nms
LBRX beacon receiver into this cabinet, you have a complete antenna tracking system in a
compact cabinet directly at your antenna.
sat-nms ACU-RMU: complete antenna controller system for AC-Motors integrated in a 6RU
19inch rack mount case for indoor use
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 4/67
sat-nms ACU19: complete antenna controller system for DC-Motors integrated in a 1RU
19inch rack mount case for indoor use
For detailed description please refer to the sat-nms documentation CD or www.satnms.com/doc
Main benefits of the sat-nms ACU are:
The ACU outdoor unit is able to act as a standalone antenna control and tracking system
without an indoor unit required.
The ACU provides an Ethernet interface using the TCP/IP and HTTP Internet protocols. It
can be controlled using any PC providing an Ethernet interface and a web browser like the
Microsoft Internet Explorer. The ACU runs a web server which acts as a user interface to the
antenna controller.
The ACU is prepared to read the receive level of a sat-nms beacon receiver through the
TCP/IP interface.
The flexible interface design of the ACU enables it to control most types of motor driving
antennas for geostationary satellites. Supported motor controllers are (configurable in the
field):
Power relays: This simple solution is suitable for antennas using 2-speed AC motors.
Freque ncy inv erters: Speed and acceleration ramps are programmed into the inverter
module with this solution.
Servo controllers: Used for DC motors at small antennas. Supported position sensors are
(separate hardware interface modules for each axis:
Resolver Interface: The resolver interface module contains a resolver to digital chip which
does the decoding of the resolver sin/cos signals.
SSI Interface : SSI is a high speed serial interface used by modern digital position encoders.
DC Voltage Interface: The third position encoder interface module contains an A/D
converter which is suited to measure the DC voltages produced by simple inductive angle
encoders. This application is for small antennas especially in the SNG business.
The paragraphs below give a short overview to the contents of the documentation. A subset of
this documentation is stored on the device itself, the complete documentation is available on the
sat-nms documentation CD and at www.satnms.com .
Safety Instructions : This chapter gives an overview about the safety precautions that have
to be observed during installation, operation and maintenance.
Unit Overview : The installation chapter gives informations about the different modules that
are integrated in the ACU (not ACU-ODM and ACU19).
Installation/Start-up : The installation chapter guides through the installation and setup of the
ACU outdoor module. It describes the mechanical concept of the ACU and the assignment of
the ACU's connectors. It gives you informations about the starting up procedure. Finally you
learn in this chapter how to set the ACU's IP address, which is a essential precondition to
operate the ACU by means of a web browser.
Operation : The sat-nms ACU is operated using a standard web browser like the Internet-
Explorer on MS Windows based computers. The user interface design is straight forward and
clearly structured. Operating the ACU is mostly self-explanatory. Nevertheless, the
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 5/67
'Operation' chapter outlines the map of web pages which make up the ACU user interface
and elaborately describe the meaning of each alterable parameter.
Frontpanel Operation : The sat-nms ACU19 and the sat-nms ACU-RMU optionally are
equipped with a frontpanel Human-Machine-Interface. This chapter describes how to use this
interface.
Remote Control : The ACU outdoor module provides a versatile remote control interface. A
monitoring & control software may fully operate the ACU either through a TCP/IP network
connection or through the RS232 interface of the ACU. This chapter describes the
communication protocol used for remote control and lists all parameters accessible through
the remote interface.
Theory of Operation : This chapter gives a short overview how the ACU works. It also
describes the different tracking algorithms and their parameters. The interaction with a
beacon receiver is described as well. Knowing about the theory regarding this functions
helps to find the best parameter settings for a given application.
Specifications : At the end of the document, the specifications applicable to the sat-nms ACU
are summarized in this chapter.
Support and Assistance
If you need any assistance regarding our ACU, don't hesitate to contact us. We would be pleased
to help you by answering your questions.
SatService GmbH
Hardstrasse 9
78256 Steisslingen
Germany
phone +49 7738 99791-10
www.satnms.com
2 Safety Instructions
Safe ty
The mains shall only be connected provided with a protective earth wire. Any interruption of the
protective wire, inside or outside the sat-nms ACU, is likely to make the unit dangerous.
Intentional interruption is prohibited.
The unit described in this manual is designed to be used by properly-trained personnel only.
Adjustment, maintenance and repair of the exposed equipment shall be carried out only by
qualified personnel who are aware of hazards involved.
Refer servicing to qualified personnel.
To prevent electrical shock, do not remove covers.
For the correct and safe use of the instrument, it is essential that both operating and servicing
personnel follow generally accepted safety procedures in addition to the safety precautions
specified in this manual.
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 6/67
Whenever it is likely that safety protection is impaired, the unit must be made in-operative and
secured against unintended operation. The appropriate servicing authority must be informed. For
example, safety is likely to be impaired if the unit fails to perform the intended measurements or
shows visible damage.
Ensure that the cabinet is proper connected to the protective earth conductor.
The circuit breaker, that fuses the mains for the sat-nms ACU has to switch off all phases AND the
neutral wire as well.
WARNINGS
The outside of the equipment may be cleaned using a lightly dampened cloth. Do not use
any cleaning liquids containing alcohol, methylated spirit or ammonia etc.
Follow standard Electrostatic Discharge (ESD) procedures when handling the Unit.
Apply the appropriate voltage according to the attached schematic.
In case of switching off all the circuit breakers is still voltage available at the mains terminals!
Only use shielded cable to connect the AZ- and EL-Motor. The other components in the
cabinet might be jammed through the harmonic waves the frequency inverters inject into the
motor wires.
Use only double shielded twisted pair cables (e.g. CAT7 Ethernet cable) to connect the
resolvers to the sat-nms ACU
Only ACU-ODU : If the Unit is equipped with an optional air ventilation, avoid direct contact
with jets of water, normal rain is no problem.
3 The sat-nms ACU-ODU DC
The sat-nms ACU-ODU is a full featured antenna positioner and as an option antenna tracking
system. The electronics of the sat-nms ACU-ODU is build into an outdoor cabinet. The protection
class of the cabinet is IP66 if no optional air ventilation is installed. So it is no problem to install it
outside without any additional roof.
The unit consists from the components listed in the following table. All of these components are
described in the next chapters. As the unit is available in different versions (optional LNA power
supply, with or without Polarisation drive ect.) the following picture shows one standard cabinet.
The look and the arrangement of the units may vary depending on your demand.
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 7/67
No. component No. component
(1) sat-nms ACU-ODM (5) Circuit breakers
(2) Power supplies for sat-nms ACU-ODM (6) Contactor
(3) Power supply for motor drivers (7) Terminals
(3a) Capacitor for motor driver power supply (8) Thermostat for heater
(4) Motor drivers (n.a.) Optional air ventilation
3.1 sat-nms ACU-ODM
The sat-nms ACU-ODM is the core module of the sat-nms ACU-ODU. For the detailed operation
of the antenna controller please refer to chapter 5 Operation . Another interesting chapter is
belonging the ACU-ODM is 4.3 Startup here you find also the description how to change the IP
address of the unit in order to integrate the antenna controller in your sub-net. A short version of
the documentation could also be found on the internal website of the sat-nms ACU-ODU. Just
enter the IP-address of the unit (standard-IP is: 192.168.2.69) into the Web-browser of a
connected computer and press the HELP button on the left side.
3.2 Power supplies for sat-nms ACU-ODM
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 8/67
In the ACU-ODU you find 2 power supplies: one is for the core processor of the ACU-ODM, it is
labelled with PS ODM. The other one supplies the external contacts of the ACU e.g. the control
signals for the POL drivers relais. This one is labelled with 'PS EXT'. By this, the core processor
of the sat-nms ACU-ODM will not break down if something externally happens (e.g. overload/
short circuit)
3.3 Power supply for motor drivers
As standard type a 24VDC/10A power supply is installed for the motor drivers. On demand
versions with up to 48VDC/15A are available. To provide enough power for starting up the
motors, there is an additionally 15000uF capacitor integrated (3a).
3.4 Motor drivers
Depending on your requirements up to 3 motor drivers are integrated into the ACU-ODU. These
are DC power drivers with power rating of 15A. The standard version has a voltage rating of
35VDC, an extended version for 48VDC is available on demand. The standard power supply
integrated into the sat-nms ACU-ODU is 24VDC/10A, so this is the limiting value. On demand, the
sat-nms ACU-ODU is available with a power supply that provide higher current.
the following picture shows a DC driver
On the upper side, you see the control inputs, on the lower side the power input and motor output
terminals are located. Between three trimmers are located, where the maximum current, high and
low speed could be adjusted. When using a 24VDC power supply, the adjustable range is:
trimmer range
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 9/67
Current Adj. 0.5A...15A
Low Speed 6.5VRMS...11.7VRMS
High Speed 10.5VRMS...22.4VRMS
All interfaces are realized with altogether 4 Phoenix combicon connectors, type MSTBT 2,5/ 3-ST.
By this an easy replacement of the unit is possible. Use 24VDC as control signal. ATTENTION: As
a PWM (puls width modulation) is used to realize the speed control, it is absolutely ne cessary
to use shielded cables for conne cting the motors in order to prevent disturbance due to
harmonic waves. Take care that the shielding of the cable is connected only on one side of the
cable: either on driver or on motor side. This is to prevent ground loops. We recommend to
connect the shield to 'PE'-Pin of the DC-driver and isolate shield on motor side. The following
table shows the pin description of the motor drivers:
pin signal description type
SP speed speed selection, connect 24VDC for low speed, 0V or
floating selects high speed IN
COM COM
control GND for control voltage IN
ER error in 'OK' condition, this pin is connected to COM by an
optocoupler. In case of fault state is high Z OUT
R right apply 24VDC here to drive motor right IN
COM COM
control GND for control voltage IN
L left apply 24VDC here to drive motor right IN
+power
input DC power input + (15...35VDC) IN
-power
input DC power input GND IN
-power
input DC power input GND IN
M1 motor- Motor power output + OUT
PE protective
ground connect cable shield here OUT
M+ motor+ Motor power output - OUT
3.5 Circuit breakers
The circuit breakers disconnect the mains from the units build to the control cabinet. Every circuit
breaker is labeled with the unit it is connected to.
Warning: In case of switching off all the circuit breakers it is still voltage available at the mains
terminals!
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 10/67
3.6 Contactor
The contactor disconnects the motor's mains when the emergency stop contact is open. Please
refer to the schematics shipped together with the sat-nms ACU-ODU to see how to connect the
emergency stop switch.
3.7 Terminals
Here the mains and emergency switch and are connected. Please refer to the schematics
shipped together with the sat-nms ACU-ODU to see how to connect them. The limit switches and
angle encoders are connected directly to the ACU-ODM (1), the motors have to be connected
directly to the motor drivers (4).
3.8 Heater
The sat-nms ACU-ODU is equipped with a temperature controlled heater. In delivery state the
thermostat is set to 10°C, that means as soon as the temperature in the cabinet falls below 10°C
the heater switches to on state.
3.9 Optional air ventilation
For using the sat-nms ACU-ODU in very hot regions, it is possible to equip the sat-nms ACU-
ODU with an optional temperature controlled fan. By this way it is possible to ensure the
availability of the sat-nms ACU-ODU in hot ambients. ATTENTION: If the unit is equipped with an
optional air ventilation, avoid contact with jets of water, rain is no problem. Through the build-in
ventilator the protection class is only IP54. The thermostat for the fan is normally set to 40°C, that
means the fan switches on as soon as the temperature of the cabinet raises above 40°C. We
strongly recommend not to set this threshold below 40°C. The reason for this is, that in the winter
the heater and the fan work against each other. In worst case the fan and the heater run parallel
over a longer time. This behavior is avoided through setting the fan threshold to 40°C.
4 Installation
The following chapter describes how to install the ACU-ODU mechanically and electrically.
Additional a detailed start-up procedure is given in this chapter.
4.1 Mechanical installation
The sat-nms ACU-ODU is integrated into an outdoor cabinet that could be mounted outside
directly at the antenna. There are 2 possibilities to mount the sat-nms ACU-ODU:
If you mount the sat-nms ACU-ODU to a plain wall, make sure that the cabinet has a
minimum distance of 5mm to the wall to ensure that the rain-roof will not be damaged
through mounting the cabinet.
If you mount the sat-nms ACU-ODU to an antenna mast, first fix 2 strong metal bars (e.g. C-
Bars) in horizontal direction to the mast. After that, fix the sat-nms ACU-ODU to these metal
bars Use at least M8 or comparable screws to fix the sat-nms ACU-ODU. On the following
picture you can see an example where the sat-nms ACU-ODU is fixed to the antenna mast
with C-Bars and according special nuts. These C-Bars can optionally be ordered at
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 11/67
SatService.
4.2 Interfaces to the Antenna, Pin descriptions
ATTENTION! Electrical installation shall be carried out only by qualified personnel who are
instructed and aware of hazards of electrical shocks.
The terminals of the sat-nms ACU-ODU are located at the lower side of the case. The angle
encoders and limit switches have to be connected directly at the sat-nms ACU-ODM, the core
module of the ACU-ODU. The Motors have to be connected directly to the motor drivers. Please
refer to the schematic of the sat-nms ACU-ODU that has been delivered to you. It shows you
where to connect all the units and the mains.
4.2.1 Angle encoder connection
The angle encoders have to be connected directly to the core module of the sat-nms ACU-ODU,
which is called sat-nms ACU-ODM. Inside, the sat-nms ACU-ODM consists of a main board and
two or three interface boards with the circuitry for the position sensors. These boards are
different for each type of position sensor. Actually interfaces for three types of position encoders
are available with the sat-nms ACU:
resolvers
SSI digital position encoders
analog voltage based sensors depending on the interface type you use, different pinouts are
used. The following tables show you detailed the pin descriptions: CON18, CON19, CON20
Resolver Interface
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 12/67
Below the pinout of a resolver type interface board is shown. The ACU is available with resolver,
SSI or analog position sensor interfaces. You have to select type of interface when you order the
ACU.
pin signal description type
1 GND
2 SIN resolver SIN IN
3 GND resolver SIN IN
4 COS resolver COS IN
5 GND resolver COS IN
6 REF drive signal to resolver OUT
7 GND drive signal to resolver OUT
8 GND
The ACU resolver interface is designed for resolvers with an impedance of 100 Ohms or more
and transfer factor 0.5. The interface applies 4Veff / 2000Hz to the resolver drive coil. It expects
2Veff at the sine / cosine inputs at the maximum positions.
When connecting a resolver to the ACU, please consider the following:
Use a shielded, twisted pair cable.
Connect the cable shield either to pin 1/8 at the ACU or to the ground at the resolver
housing. Never connect the shield at both ends, this will introduce a ground loop and cause
a significant degradation of the resolver's accuracy.
CON18, CON19, CON20 SSI Positional Encoder Interface
Below the pinout of a SSI type positional encoder interface board is shown. The ACU is available
with resolver, SSI or analog position sensor interfaces. You have to select type of interface when
you order the ACU.
The SSI positional encoder may be powered from the ACU internal power supply. +5V and +24V
clamps are provided at the connector. To avoid ground loops, the cable shield should be
connected eithe r to pin 1 at the ACU or to the ground at the encoder housing, never at both
ends.
pin signal description type
1 GND
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 13/67
2 SSI-Data+ SSI data IN
3 SSI-Data- SSI data IN
4 SSI CLK+ SSI clock OUT
5 SSI CLK- SSI clock OUT
6
7 +5V encoder power supply
8 +24V encoder power supply
CON18, CON19, CON20 Analog Angle Sensor Interface
Below the pinout of an analog type positional sensor interface board is shown. The ACU is
available with resolver, SSI or analog position sensor interfaces. You have to select type of
interface when you order the ACU.
pin signal description type
1 AGND analog ground OUT
2 INPUT A/D converter input IN
3 REF reference voltage OUT
4 AGND analog ground OUT
5 +15V (opt) optional DC out OUT
6 -15V (opt) optional DC out OUT
7 +9V (opt) optional DC out OUT
8 GND digital ground OUT
4.2.2 Limit switch and emergency switch connection
Limit switches have to be connected directly to the sat-nms ACU-ODM, emergency switch has to
be connected to the terminals bottom right of the cabinet. Please refer to the schematics for the
exact cabling. The ACU treats a closed contact as OK, contacts have to be opened to indicate the
'limit reached' or 'emergency stop' condition. Opening the emergency stop contact disconnects
the frequency inverters, motor drivers or conductors from mains supply immediately.
The pinout of limit switch connector is as follows:
CON16 Limit Switches
The limit switch inputs internally are connected to the external 24V / GND rails. The switches are
connected directly to the input pairs without any external ground or supply cabling. The ACU
treats a closed contact as OK, contacts have to be opened to indicate the 'limit reached'
condition.
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 14/67
--- Example for wiring the limit switches
Please note, that the left/right azimuth and polarization limit switches have to be swapped when
the antenna is operated at the southern hemisphere.
pin signal description type
1 AZ High azimuth right limit (view from behind antenna) IN
2 GND EXT IN
3 AZ Low azimuth left limit (view from behind antenna) IN
4 GND EXT IN
5 El High upper limit Elevation IN
6 GND EXT IN
7 El Low lower limit Elevation IN
8 GND EXT IN
9 Pol High polarization right limit (view from behind antenna) IN
10 GND EXT IN
11 Pol Low polarization left limit (view from behind antenna) IN
12 GND EXT IN
4.2.3 Motors connection
Connect the azimuth, elevation and if available polarisation motors directly to the motor drivers.
Use shielded cable only. Take care, that the shield is connected to the PE terminal of the motor
driver and is NOT connected to the crankcase. Please refer to the schematics shipped together
with your sat-nms ACU-ODU for more detailed informations and pin descriptions. The ACU knows
two different configuration modes to control a motor driver. They are called 'DIR-START' and
'DUAL-START'. In 'DIR-START' mode, the 'FWD' signal switches the motor on/off, the 'REV' signal
controls the motor direction. This is the configuration many frequency inverters use. In 'DUAL-
START' mode, the 'FWD' signal switches the motor on in forward direction, 'REV' activates the
motor in reverse direction. This configuration mode is convenient to control a motor with relays. At
sat-nms ACU-ODU it has to be configured as DUAL-START for AZ, EL and if available for POL
drive.
4.2.4 Mains connection
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 15/67
Connect mains to the terminals at the lower side of the cabinet. Please refer to the schematics
shipped with your sat-nms ACU-ODU for detailed pin description.
4.2.5 Ethernet connection
Connect the ethernet cable for remote controlling directly to the sat-nms ACU-ODM, the core
module of the cabinet. Use a standard network cable with RJ45 connectors to connect the sat-
nms ACU-ODU to an ethernet hub. If you want to connect your computer and the ACU directly
without using a hub, you need a crossover cable for this with swapped RX/TX lines. Please refer
to chapter 5 Operation and to chapter 7 Remote Control for detailed informations about remote
controlling.
4.3 Start-up
This chapter describes how to install and set-up the sat-nms ACU-ODU. It is a step-by-step
description without detailed description. If you need more detailed description for e.g. some
parameter settings, please refer to chapter 5 Operation , all of the parameters are described
here.
Before you start, please first read the Safety Instructions chapter. It contains some important
recommendations to prevent damage from the ACU.
Then, we strongly recommend to do a first setup of the ACU on a lab desk before installing it at
it's final location. This is mainly for the following reason:
To setup the ACU's IP parameters, the PC used for configuring and the ACU must either be
connected to the same Ethernet hub or must be connected directly with a crossover cable. The
initialization program does not work through routers or intelligent network switches.
Hence, the typical sequence of tasks when putting an sat-nms ACU outdoor module into
operation is as follows:
1. Read the chapter Safety Instructions .
2. Set the ACU's IP address .
3. Mechanically mount the ACU.
4. Connect the ACU to the antenna (position encoders, limit switches and motor drivers). Finally
connect the UPS power supply and the Ethernet network.
5. Start up the system and set the parameters as described below.
4.3.1 Setting the IP Address
Before you can operate the sat-nms ACU-ODU, you need to set the ACU's IP address. There is a
special configuration program on the documentation CD shipping with the ACU for this purpose.
We recommend to configure the ACU's TCP/IP settings before you install the sat-nms ACU-RMU
at it's final place. To configure the ACU, the following equipment is required:
The sat-nms ACU-ODU itself.
230V AC power at UPS mains terminals.
A Computer running a Microsoft Windows operating system equipped with CD-ROM drive
and Ethernet network card.
A CAT5 crossover network cable or an Ethernet hub and standard network cables to
connect the ACU and the computer.
The CD-ROM shipping with the sat-nms ACU.
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 16/67
Setting the ACU's IP parameters now is easily done within a few minutes.
1. First install a network cable between the ACU and your computer. If you have a crossover
cable available, this is very easy: simply put the cable into the network connectors of
computer and ACU. Without a crossover cable, you need to connect both, the computer and
the ACU to the same network hub using two standard network cables. It is essential, that the
computer and the ACU are connected to the same network segment, the configuration
program is not able to find the ACU through routers or network switches.
2. Now power on your computer and connect the ACU to the UPS power supply. Take care, that
circuit breaker for the ACU inside the sat-nms ACU-ODU is switched to on state, the other
ones have to be switched off.
3. Insert the CD-ROM into the computer's drive and inspect it's contents through the 'My
Computer' icon on your desktop. Double-click to the 'ChipTool.exe' program in the 'ChipTool'
directory.
4. When the ChipTool program is running, the program shows a list containing at least one
entry describing the actual network parameters of the sat-nms ACU-RMU.
5. The serial number of the core module shown in the first column of the list. If the list stays
empty, the ACU is not connected properly. If there are more entries in the list, the
configuration program has found other devices in this network segment which use the same
technology.
6. Now open with a right-click the sub-menu IP configuration to open the IP configuration
window of the program. In this form the ACU's MAC address is shown on top, below you find
the fields to configure the new IP address and network mask. If the ACU later shall be
operated through a router, enter the address of the router on the gateway field, otherwise
leave this field blank. Be sure, that the 'DHCP' mark is unchecked, the other values have to
be set as shown on the picture. Finally click to the 'Yes' button to set the new parameters at
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 17/67
the ACU.
Now the IP configuration of the ACU is completed. You may finally want to test if the ACU is
reachable now. Start your web browser and type the ACU's IP address into the URL field of the
browser. The ACU should reply with it's main page, provided that the ACU and your computer are
configured for the same subnet.
4.3.2 Limit switches
Connect the limit switches to the sat-nms ACU-ODU as described in chapter 4.2 Pin description .
1. Switch on circuit breaker for the ACU-ODM to on state, take care, that the other ones are in
off-position. The ACU should be reachable via Ethernet now.
2. Check the function and correlation of all limit-switches manually. On the sat-nms ACU-ODMs
main-website a limit fault is shown as soon it occurs. On the test-page every single limit
switch is displayed. For more detailed informations see chapter 5 Operation
4.3.3 Angle detectors
Connect the angle detectors directly to the sat-nms ACU-ODU as described in chapter 4.2.1 Pin
description .
1. Configure the desired type of detector on the setup-page.
2. Set the soft-limits to the expected values (at first it is ok if you do this approximately, later on
you need to type in here the exact values).
3. Check the rotational direction of the resolvers. If possible, do this by turning the resolver axis
directly, otherwise you have to move the antenna by hand. Maybe you have to invert the
rotational direction on the setup page.
4. Set the offset of the angle detectors to the desired values by using the calc function.
If you need more detailed information, please refer to chapter 5.6 Setup .
4.3.4 Motors
Before you connect the motors to the sat-nms ACU-ODU, take care that the circuit breakers for
the frequency inverters, motor drivers or conductors are in off position before connecting the
motors.
1. Connect the motors to the sat-nms ACU-ODU as described in chapter 4.2.3 .
2. Connect the emergency stop button to its terminals, see chapter 4.2.2 . If you do not have
one, take care that these terminals are bridged. Without a connection between these pins
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 18/67
one, take care that these terminals are bridged. Without a connection between these pins
the power supply of the motors is disabled.
3. Press the STOP button on the sat-nms ACU-ODMs website. By this you can be shure that
no motor movement will occur by switching on the circuit breakers.
4. Turn on circuit breakers of the frequency inverters, they have to run now.
5. Check the motor rotating directions, if necessary change it by interchanging the power wires
of the motor cable.
6. Drive the antenna in every direction (AZ, EL and POL) until the limit switches stop the motor
movement to ensure that the limit switches work well. ATTENTION! While doing this test it is
absolutely necessary to be very mindful to check, if nothing collides!
7. Set the soft-limits to the desired values (e.g. 1° before the hardware limit switch is activated)
If you need more detailed informations about the motor drivers, please refer to chapter 3.4 .
4.3.5 Pointing/ Tracking
Now, the setup of all interfaces to the antenna is done. By this everything is prepared to configure
the ACU-RMU to the desired operation mode, to save targets and finally to set the sat-nms ACU-
RMU into service.
In chapter 5 Operation you find a detailed description of the pointing and tracking parameters.
To use the function pointing by stating an orbit position you have to configure the 'Location'
parameters on the setup page to the geodetic location of your antenna. Take care to type in
position with enough accuracy (0.001°). For further informations, please refer to chapter 5.6
Setup for location parameters and 5.3 Target Memory for using this pointing function.
4.3.6 Backup of ACU settings
The last step that is recommended to be done is the backup of ACU settings. By this way an easy
replacement of the ACU-ODM could be performed. The following step-by step description shows
how to do this.
1. Open the chiptool
2. Right click to the desired unit. A drop-down list will open, choose FTP
3. A small window like shown on the following picture will be opened. Please double-check the
displayed IP, you might adjust it in the drop-down list here.
4. Login with username service and password service
5. Now you see on the right side the file system of the ACU like shown on the following picture.
On the left side you see the computers file system.
(C) 2022, SatService GmbH www.satnms.com ACU-ODU-DC-UM-2209 Page 19/67
Table of contents
Other Calian Controllers manuals
