User Manual
Chapter 1 - Safety Precautions 7
Chapter 1 - Safety Precautions
In compliance with EEC directives, make sure that all the safety devices required by EC standard 89/
392/CEE governing industrial automation have been incorporated in the drive before attempting to
operate it. These directives apply only in Europe and have no validity on the American continent.
This drive controls mechanical movements. It is the responsibility of the end user to ensure that
these movements do not themselves cause any danger. Do not bypass or tamper with the drive
manufacturers safety interlocks or operating limits.
Risk of fire and electric shock!
When using test apparatus like oscilloscopes to take measurements from electrically live equipment,
always connect the body of the oscilloscope to ground and always use a differential amplifier. To
ensure accurate readings, choose probes and terminals with care and make sure that the oscilloscope
is correctly set up. Refer to the manual provided by the oscilloscope manufacturer for details of how
to operate and adjust the oscilloscope correctly .
Risk of fire and explosion!
Installation of the drive in hazardous areas and in the presence of flammable substances or
combustible vapours or powders can lead to fire or explosion. Install the drive well away from
hazardous areas even if the controlled motor is suitable for use under such conditions.
Risk of crushing!
Incorrect lifting of the drive can cause serious or even fatal injury. Only suitably trained personnel
should lift the drive, and even then only with suitable lifting equipment.
Connect the drive and the motor to ground in compliance with applicable national electrical standards
.
Replace any covers that may have been removed before powering up the drive. Failure to comply
with this precaution can lead to serious injury or even death.
This variable frequency drive is electrical equipment designed for use in industrial installations.
Parts of the drive are electrically live while it is functioning. The drive must therefore be installed
and opened only by a qualified electrician. Incorrect installation of the drive or the controlled motor
can damage the drive and lead to damage and injury.
The drive has no over-speed protection other than software based protection logic. Carefully follow
the instructions given in this manual and observe all local and national safety standards.
Always connect the drive to a protective earth (PE) through the ground terminals (PE2) and the
metallic casing (PE1). PIX drives and their AC power input filters have an earth leakage current
greater than 3.5 mA. EN 50178 standard specifies that in the presence of earth leakage currents
greater than 3.5 mA, the ground connection cable (PE1) must be fixed and must be doubled for
redundancy.
In the event of a fault, even if the drive has been disabled it may still cause sudden movements if it
has not been disconnected from the mains power.
Never open the drive or remove any covers while the drive is connected to the mains power supply.
See section 5.9 in this manual for the minimum delay that must be respected before any work on the
drives terminals or internal components can be performed.
Never connect the drive to mains supplies with voltage levels outside the specified range. Excess
voltage can damage the drives internal components.
It is forbidden to operate the drive without a correct ground connection. The casing of the motor
must also be grounded separately from the drive to avoid interference.
The ground connection must be comply with national electrical standards or the Canadian Electrical
Code. The drive must be grounded using a closed loop connector certified to UL and CSA standards
sized to match the gauge of the wire used. The connector must be fitted using the crimping tool
