Unidrive
LV
model sizes 1 to 3 Installation Guide
Issue code: uliu1
Safety Information 1-1
1 Safety Information
1.1
Warnings, Cautions
and Notes
A Warning contains information which is essential
for avoiding a safety hazard.
A Caution contains information which is necessary
for avoiding a risk of damage to the product or
other equipment.
A Note contains information which helps to ensure
correct operation of the product.
1.2 Electrical safety –
general warning
The voltages used in the Drive can cause severe
electric 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 Installation Guide and the accompanying User
Guide.
The installation must comply with all relevant safety
legislation in the country of use.
1.3 System design
The Drive is intended as a component for
professional incorporation into complete equipment
or systems. 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 mechanical
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 Installation Guide carefully.
To ensure mechanical safety, additional safety
devices such as electro-mechanical interlocks may
be required. The Drive must not be used in a safety-
critical application without additional high-integrity
protection against hazards arising from a
malfunction.
1.4 Environmental limits
Instructions in this Installation Guide regarding
transport, storage, installation and use of Drives
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 Installation Guide contains instructions 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 Safety of personnel
The STOP function of the Drive does not remove
dangerous voltages from the output of the Drive or
from any external option unit.
The Stop and Start controls or electrical inputs of
the Drive must not be relied upon to ensure safety
of personnel. If a safety hazard could exist from
unexpected starting of the Drive, an interlock that
electrically isolates the Drive from the
AC supply
must be installed to prevent the motor being
inadvertently started.
Careful consideration must be given to the
functions of the Drive which might result in a
hazard, either through their intended functions
(eg. Auto-start) or through incorrect operation due
to a fault or trip (eg. stop/start, forward/reverse,
maximum speed).
Under certain conditions, the Drive can suddenly
discontinue control of the motor. If the load on the
motor could cause the motor speed to be increased
(eg. hoists and cranes), a separate method of
braking and stopping the motor must be used (eg. a
mechanical brake).
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