26
INSTALLATION AND MAINTENANCE
VARMECA - 10
Variable speed motor or geared motor
CONNECTIONS
LEROY-SOMER
Réf. 3195 - 4.33/d - 12.99
3 - CONNECTIONS
• The voltages on the power terminal
blocks and the cables connected to them may
cause fatal electric shocks. The stop function of the
controller does not protect against these high voltages.
• The controller contains capacitors which remain
charged at a fatal voltage even after the power supply has
been cut off.
• After the controller power supply has been cut
off, wait for 2 minutes (so that the internal circuits
discharge the capacitors) before removing the protective
covers.
• The speed controller power supply must be
protected against overloads and short-circuits.
• It is vital to respect the rating of protections.
3.1 - Wiring precautions
- When the VARMECA - 10 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
2
and 1 mm
2
.
- Incorporate a bend where the cables enter the cable glands
so that water cannot penetrate the terminal box.
- Tighten the cable glands firmly.
3.2 - Terminal blocks
3.2.1 - Layout
• Standard
• With CVI - VMA option
3.2.2 - Mains terminal block
Note :
To open blade terminals, use a flat screwdriver
(maximum width 4 mm).
3.2.3 - EMC filter option terminal block
CAUTION :
Standard VARMECA - 10 motors are supplied with blade
terminals 1 and 4, 2 and 5, 3 and 6 connected together :
to fit the filter undo these connections.
EMC filter option terminal block
2
Control
terminal
block
3
Mains terminal block
1
Fault relay
terminal block
4
Ref.
Function
L1
L2
L3
Connection of the 3 mains protected phases
defined in section 1.3.1
PE
Compulsory connection to earth
Ref.
Function
1
2
3
Filter output
Connection of blue wires
PE
Compulsory connection of filter earth
4
5
6
Filter input
Connection of orange wires
EMC filter option terminal block
2
Control
terminal block
3
Mains terminal block
1
Fault relay
terminal block
4
1
2
