CG Drives & Automation 01-7318-01r1 1
Safety Instructions
Instruction manual
Read this instruction manual before using the system.
The following symbols can appear in this manual. Always
read these first before continuing:
Handling the Active front end unit
Installation, commissioning, demounting, taking
measurements, etc, of or on the active front end may only be
carried out by personnel technically qualified for the task.
The installation must be carried out in accordance with local
standards.
Opening the Active front end unit
Always take adequate precautions before opening the active
front end. Although the connections for the control signals
and the switches are isolated from the main voltage, do not
touch the control board when the active front end is
switched on.
Precautions to be taken with a
connected load (motor)
If work must be carried out on a connected load (motor) or
on the driven machine, the mains voltage must always be
disconnected from the active front end first. Wait at least 7
minutes before starting work.
Earthing
The active front end must always be earthed via the mains
safety earth connection.
Earth leakage current
Residual current device (RCD)
compatibility
This product cause a DC current in the protective
conductor. Where a residual current device (RCD) is used
for protection in case of direct or indirect contact, only a
Type B RCD is allowed on the supply side of this product.
Use RCD of 300 mA minimum.
EMC Regulations
In order to comply with the EMC Directive, it is absolutely
necessary to follow the installation instructions. All
installation descriptions in this manual follow the EMC
Directive.
Mains voltage selection
The active front end may be ordered for use with the mains
voltage range listed below.
VFXR/FDUL/AFR46: 380-460 V
VFXR/FDUL/AFR69: 480-690 V
VFXG/FDUG/AFG46: 380-460 V
VFXG/FDUG/AFG69: 480-690 V
NOTE:
Additional information as an aid to avoid problems.
CAUTION!
Failure to follow these instructions can result
in malfunction or damage to the active front
end or motor inverter.
WARNING!
Failure to follow these instructions can result
in serious injury to the user in addition to
serious damage to the active front end or
motor inverter.
HOT SURFACE!
Failure to follow these instructions can result
in injury to the user.
WARNING!
Always switch off the mains voltage before
opening the drive unit and wait at least 7
minutes to allow the buffer capacitors to
discharge.
CAUTION!
This active front end has an earth leakage
current which does exceed 3.5 mA AC.
Therefore the minimum size of the protective
earth conductor must comply with the local safety
regulations for high leakage current equipment which
means that according to the standard IEC61800-5-1 the
protective earth connection must be assured by one of
following conditions:
PE conductor cross-sectional area shall for phase cable
size <
16 mm
2
(6 AWG) be >10 mm
2
Cu (16 mm
2
Al) or
use a second PE conductor with same area as original
PE conductor.
For cable size above 16 mm
2
(6 AWG) but smaller or
equal to 35mm
2
(2 AWG) the PE conductor cross-
sectional area shall be at least 16mm
2
(6 AWG).
For cables >35 mm
2
(2 AWG) the PE conductor cross-
sectional area should be at least 50 % of the used phase
conductor.
When the PE conductor in the used cable type is not in
accordance with the above mentioned cross-sectional
area requirements, a separate PE conductor should be
used to establish this.
!
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