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169 Joseph-Carrier, Vaudreuil-Dorion, Quebec, J7V 5V5, Canada Tel 450 424 5666 Fax 450 424 6611
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Introduction
This manual covers the maintenance of the antenna system, control cabinet and related components.
Maintenance and repairs should only be performed by qualified technicians familiar with the system and
components. Adjustment of drive parameters and setup can cause unwanted sudden movement of the
antenna. This manual provides an overview of basic maintenance tasks. For more detailed information,
refer to the appropriate Control Techniques documentation.
Safety Information
1.2 Electrical safety - general warning
The voltages used in the drive can cause severe electrical shock
and/or burns, and could be lethal. Extreme care is necessary at all
times when working with or adjacent to the drive. Specific
warnings are given at the relevant places in this User Guide.
1.3 System design and safety of personnel
The drive is intended as a component for professional
incorporation into complete equipment or a system. If installed
incorrectly, the drive may present a safety hazard. The drive uses
high voltages and currents, carries a high level of stored electrical
energy, and is used to control equipment which can cause injury.
Close attention is required to the electrical installation and the
system design to avoid hazards either in normal operation or in
the event of equipment malfunction. System design, installation,
commissioning and maintenance must be carried out by
personnel who have the necessary training and experience. They
must read this safety information and this User Guide carefully.
The STOP and SECURE DISABLE functions of the drive do not
isolate dangerous voltages from the output of the drive or from
any external option unit. The supply must be disconnected by an
approved electrical isolation device before gaining access to the
electrical connections.
With the sole exception of the SECURE DISABLE function, none
of the drive functions must be used to ensure safety of
personnel, i.e. they must not be used for safety-related
functions.
Careful consideration must be given to the functions of the drive
which might result in a hazard, either through their intended
behaviour or through incorrect operation due to a fault. In any
application where a malfunction of the drive or its control system
could lead to or allow damage, loss or injury, a risk analysis must
be carried out, and where necessary, further measures taken to
reduce the risk - for example, an over-speed protection device in
case of failure of the speed control, or a fail-safe mechanical brake
in case of loss of motor braking. The SECURE DISABLE function has
been approved1 as meeting the requirements of EN954-1
category 3 for the prevention of unexpected starting of the drive.
It may be used in a safety-related application. The system
designer is responsible for ensuring that the complete system is
safe and designed correctly according to the relevant safety
standards.
1.4 Environmental limits
Instructions in this User Guide regarding transport, storage,
installation and use of the drive must be complied with, including
the specified environmental limits. Drives must not be subjected
to excessive physical force.
1.5 Compliance with regulations
The installer is responsible for complying with all relevant
regulations, such as national wiring regulations, accident
prevention regulations and electromagnetic compatibility (EMC)
regulations. Particular attention must be given to the
cross-sectional areas of conductors, the selection of fuses or other
protection, and protective earth (ground) connections. This User
Guide contains instruction for achieving compliance with specific
EMC standards.
Within the European Union, all machinery in which this product is
used must comply with the following directives:
98/37/EC: Safety of machinery.
89/336/EEC: Electromagnetic Compatibility.
1.6 Motor
Ensure the motor is installed in accordance with the
manufacturer’s recommendations. Ensure the motor shaft is not
exposed. Standard squirrel cage induction motors are designed
for single speed operation. If it is intended to use the capability of
the drive to run a motor at speeds above its designed maximum, it
is strongly recommended that the manufacturer is consulted first.
Low speeds may cause the motor to overheat because the cooling
fan becomes less effective. The motor should be fitted with a
protection thermistor. If necessary, an electric forced vent fan
should be used. The values of the motor parameters set in the
drive affect the protection of the motor. The default values in the
drive should not be relied upon. It is essential that the correct
value is entered in parameter 0.46 motor rated current. This
affects the thermal protection of the motor.
1.7 Adjusting parameters
Some parameters have a profound effect on the operation of the
drive. They must not be altered without careful consideration of
the impact on the controlled system. Measures must be taken to
prevent unwanted changes due to error or tampering.
