Control Techniques Focus 3R User Manual page 6

General warning
Failure to follow safe installation guidelines can cause death or serious injury. The
voltages used in this unit 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 this
equipment. The installation must comply with all relevant safety legislation in the country
of use.
AC supply isolation device
The AC supply must be removed from the drive using an approved isolation device or
disconnect before any servicing work is performed, other than adjustments to the
settings or parameters specified in the manual. The drive contains capacitors, which
remain charged to a potentially lethal voltage after the supply has been removed.
Grounding (Earthing, equipotential bonding)
The drive must be grounded by a conductor sufficient to carry all possible fault current
in the event of a fault. The ground connections shown in the manual must be followed.
Fuses
Fuses or over-current protection must be provided at the input in accordance with the
instructions in the manual.
Isolation of control circuits
The installer must ensure that the external control circuits are isolated from human
contact by at least one layer of insulation rated for use at the applied AC supply voltage.
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