Lenze i700 Manual User Manual download pdf (Page 94)

Electrical installation

Installation according to EMC (installation of a CE−typical drive system)

Motor cable



EDS700ACBA EN 4.0

6.3.3 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 Connect the shield with a large surface and fix it with metal cable binders or a

conductive clamp.

ƒ Connect the shield directly to the corresponding device shield sheet.

– If required, additionally connect the shield to the conductive and earthed

mounting plate in the control cabinet.

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.

Motor supply cable Cable gland

Motor supply cable

max. 500mm

Large-surface

contact of

cable shield

Braid

Heat-shrinkable tube

Cable gland acc. to EMC with

high degree of protection

Cable gland

8200EMV023 8200EMV024

Fig. 6−2 Shielding of the motor cable

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 158 159

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Lenze i700 Manual User Manual Page 94

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