Installation; General; Connections; Wiring Precautions - Leroy-Somer VARMECA 30 Inbetriebnahme Und Wartung

LEROY-SOMER

2 - INSTALLATION

• It is the responsibility of the owner or user to
ensure that the
maintenance of the drive and its options comply with
legislation relating to the safety of people and equipment
and with the regulations in force in the country of use.
• Before carrying out any work, disconnect and lock the
drive power supply. For the single-phase range, wait 2
minutes to make sure that the capacitors have
discharged.
• After connection, ensure that the seals are firmly in
place, and that the screws and cable glands are
watertight to ensure IP 65 protection.
• Holes are provided at the lowest points of the
enclosure, depending on the operating position, to drain
off any moisture that may have accumulated inside
during cooling of the machine. In conditions which
encourage the formation of condensation, it is advisable
to leave the drain holes permanently open.

3 - CONNECTIONS

• All connection work must be performed in
accordance with the laws in force in the country
where the drive is installed. This includes earthing to
ensure that no directly accessible part of the drive can be
at the mains voltage or any other voltage which may be
dangerous.
• The voltages on the cables or connections of the mains
supply, the motor, the braking resistor or the filter may
cause fatal electric shocks. Contact must be avoided in
all circumstances.
• The drive must be supplied via a circuit-breaking device
so that it can be powered down safely.
• The drive contains capacitors which remain charged at
a fatal voltage even after the power supply has been cut
off.
• Wait 2 minutes after powering down the drive before
removing the protection devices.
• The drive power supply must be protected against
overloads and short-circuits.
• It is vital to respect the rating of protection devices.
• Connection with copper conductor only.
• Check that the voltage and current of the drive, the
motor and the mains supply are compatible.
• After the drive has been operating, the heatsink or the
braking resistors may be very hot (avoid touching them).

3.1 - Wiring precautions

• When the VARMECA 30 is controlled remotely, avoid
parallel routing of power cables and control cables.
• All remote control cables must be shielded and have a
cross-section between 0.22 mm
should be connected to earth at both ends.
INSTALLATION AND MAINTENANCE
VARMECA 30
Variable speed motor or geared motor
INSTALLATION
installation, operation and
2 and 1 mm 2 . The shielding
• When the cover is open, the VARMECA 30 degree of
protection is IP10. Any work should only be carried out
by experienced, qualified personnel.

2.1 - General

The VARMECA 30 motor is fitted to the machine like a
standard motor, with flange or foot mounting.
The motor ventilation cools the whole assembly. Make sure
that the ventilation air inlet is free of obstruction.
The positions of the potentiometer/cable gland supports are
specified at the time of ordering. However they may be
reversed if necessary.
• Check that the different earth points are actually at the same
voltage.
• Incorporate a bend where the cables enter the cable glands
so that water cannot penetrate the terminal box.
• Tighten the cable gland firmly.
• The VARMECA 30 has a positive logic
configuration.
Using a drive with a control system which has a different
control logic may cause unwanted starting of the motor.
• The control circuits in the drive are isolated from the
power circuits by single insulation (IEC 664-1). The
installer must ensure that the external control circuits are
isolated against any human contact.
• If the control circuits need to be connected to circuits
conforming to SELV safety requirements, additional
insulation must be inserted to maintain the SELV
classification.
3776 en - 07.2007 / h
49