8 Electrical connections
FlexiMova
®
mm - Design and Installation
43 of 80
8.3
Selecting and laying the power cables
The choice of connecting cables depends on various factors including the type
of connection, the environmental conditions and the type of system.
The connecting cables must comply with regulations, and selected with
particular attention to: manufacturer’s details, rated voltage, insulation
class, rated current, operating temperature and thermal effects.
Do not lay cables on or near hot surfaces (unless they are cables intended
for this type of use).
If mobile system components are used, use cables with adequate elasticity.
Arrange the power cables and the signal cables in separate conduits.
Arrange the power cables and signal cables separately on the floor, using a
star connection to limit the possibility of disturbances or signal alterations.
See
par. 8.4.6
“Ground connection” for a correct definition of the
connections.
If necessary (also depending on the powers involved) use diversified ground
rods for the signal ground connections and the power ground connections.
Verify that the signal rods are not interfered with by power circuit currents,
being sources of possible disturbances coming from the control system
(PWM, high di/dt, etc.) or from the connection systems (brushes, sliding
contacts, etc.).
Connect the fixed equipment correctly with the shortest cables possible.
8.3.1
Connection to the AC power supply network
FlexiMova
®
mm
requires a shielded cable with ground conductor for its
connection to the power supply network.
FlexiMova
®
mm
is already equipped with a terminal for connecting L1,
L2, L3 and ground.
Содержание FlexiMova mm F0K37 Series
Страница 1: ...Drive for decentralised control systems FlexiMova mm Design and Installation Manual...
Страница 5: ......
Страница 81: ......
Страница 82: ......
Страница 83: ......
Страница 84: ...REEL S r l a Socio Unico Via Riviera Berica 40 42 36024 Ponte di Nanto VI Italy...