Lenze 8400 protec Manual - Manual (Page 81)

Electrical installation − HighLine/StateLine version
Installation according to EMC (installation of a CE−typical drive system)
Motor cable
6
l
81 EDS84DPS424 EN 5.0
6.4.2 Motor cable
ƒ Only use shielded motor cables with braids made of tinned or nickel−plated copper.
Shields made of steel braids are not suitable.
– The overlap rate of the braid must be at least 70 % with an overlap angle of 90 °.
ƒ The cables used must correspond to the requirements at the location (e.g.
EN 60204−1).
ƒ Use Lenze system cables.
ƒ Extensively apply the shielding in the plug and attach it in a way which ensures
electrical conductivity.
ƒ The motor cable is optimally installed if
– it is separated from mains cables and control cables,
– it only crosses mains cables and control cables at right angles,
– it is not interrupted.
ƒ If the motor cable must be opened all the same (e.g. due to chokes, contactors, or
terminals):
– The unshielded cable ends may not be longer than 100 mm (depending on the
cable cross−section).
– Install chokes, contactors, terminals etc. spatially separated from other
components (with a min. distance of 100 mm).
– Install the shield of the motor cable directly before and behind the point of
separation to the mounting plate with a large surface.
ƒ Connect the shield with a large surface to PE in the terminal box of the motor at the
motor housing.
– Metal EMC cable glands at the motor terminal box ensure a large surface
connection of the shield with the motor housing.