Installation
Installation according to EMC (installation of a CE-typical drive system)
Motor cable
5
60
EDS84DG752 EN 5.0
5.4.2 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 Ifthemotorcablemustbeopenedallthesame(e.g.duetochokes,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 o ther
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.
Wiring on the motor side
Stop!
The motor cable is highly susceptible to interference. Therefore you will
achieve an optimum wiring on the motor side if you
ƒ exclusively use shielded and low-capacitance motor cables.
ƒ do not integrateanyfurthercableintothemotorcable(e.g.forblowers
etc.).
ƒ shield the supply c able for temperature monitoring of the motor (PTC or
thermostat) and install it separately from the motor cable.
Special conditions allow you to integrate the supply cable for temperature monitoring of
the motor into the motor cable: ( 60)
To Next Page
Loading...
Need help?
General