Installation manual

24
Wiring recommendations
Keep the power cables separate from circuits in the installation with low-level signals (sensors, PLCs, measuring apparatus, video, telephone).
The motor cables must be at least 0.5 m (20 in.) long.
In certain situations where the motor cables have to be submerged in water, earth leakage currents can cause tripping, requiring the addition
of output filters.
Do not use surge arresters or power factor correction capacitors on the variable speed drive output.
Control section
Keep the control circuits away from the power circuits. For control and speed reference circuits, we recommend using shielded twisted
cables with a pitch of between 25 and 50 mm (0.98 and 1.97 in.) and connecting the shielding to ground at each end.
If using conduit, do not lay the motor, power supply and control cables in the same conduit. Keep the metal conduit containing the power
supply cables at least 8 cm (3 in.) away from the metal conduit containing the control cables. Keep the non-metal conduits or cable ducts
containing the power supply cables at least 31 cm (12 in.) away from the metal conduits containing the control cables. If it is necessary for
control and power supply cables to cross each other, be sure they cross at right angles.
Length of motor cables
Choice of associated components:
Please refer to the catalog.
CAUTION
IMPROPER USE OF A BRAKING RESISTOR
• Only use the braking resistors recommended in our catalogs.
• Wire the thermal protection contact on the resistor so that the drive power supply is disconnected immediately in the
event of a fault (refer to the manual supplied with the resistor).
Failure to follow these instructions can result in injury and/or equipment damage.
ATV71H 0 m
(0 ft)
10 m
(32.8ft)
50 m
(164 ft)
100 m
(328 ft)
150 m
(492 ft)
300 m
(984 ft)
1000 m
(3280 ft)
037M3 to U75M3
075N4 to D15N4
Shielded
cable
Unshielded
cable
D11M3X to
D45M3X
D18N4 to D75N4
Shielded
cable
Unshielded
cable
U22Y to D90Y Shielded
cable
See catalog
With dv/dt filters
With sinus filters