Lenze 8400 Manuel d'utilisateur télécharger pdf (Page 169)

Electrical installation

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

Motor cable



169

EDS84ASC552 EN 9.1

6.2.3 Motor cable

ƒ Only use shielded motor cables with braids made of tinned or nickel-plated copper.

Shields m ade 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 c ables used must correspond to the requirements at the location (e.g.

EN 60204-1).

ƒ Shield the cable for motor temperature monitoring (PTC or thermal contact) and

install it separately from the motor cable.

– In Lenze system cables, the cable for brake c ontrol is integrated into the motor

cable. If this cable is not required for brake control, it can also be used to connect

the motor temperature monitoring up to a length of 50 m.

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 Ifthemotorcablemustbeopenedallthesame(e.g.duetochokes,contactors,or

terminals):

– The unshielded cable ends may not be longer than 100 mm (depending on the

cable c ross-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. 6-3 Shielding of the motor cable

1 2 ... 164 165 166 167 168 169 170 171 172 173 174 ... 303 304

Commentaires sur ces manuels

Pas de commentaire

Lenze 8400 Manuel d'utilisateur Page 169

Commentaires sur ces manuels

Produits connexes et manuels pour Équipement Lenze 8400