Lenze EY System cables and system connectors - Manual (Page 27)

Product description
System cables
Important notes for trailing cables
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27 EDSYPFLD EN 8.0
2.1.4 Important notes for trailing cables
Store trailing cables correctly
ƒ In closed rooms, store at specified storage temperature.
ƒ Store in delivery state until installation.
ƒ Store at room temperature at least 24 hours before installation to ensure an
optimum installation.
Install trailing cables correctly
ƒ Select trailing cables according to the properties of the trailing cables used. Observe
mounting instructions by the trailing cable manufacturer.
ƒ Unwind trailing cables tangentially from the cable drum or the cable ring. Never
draw them off via the front end of the cable drum or cable ring. If required, lay out or
hang out the cables before installation.
ƒ In the trailing cables, place the cables loosely next to each other.
– Install in a twist−free manner. Observe specified bend radii.
– The cables must be able to move freely any time − also in longitudinal direction.
– The cables must not be forcibly guided or fixed.
– In the radius no tensile force must be exerted on the trailing cable.
ƒ Make sure that free spaces between the cables are maintained:
– In horizontal trailing cables: minimum 10 %, maximum 50 % of the cable
diameter.
– In vertical trailing cables: 20 % of the cable diameter to prevent the cables from
restricting one another in their movements.
– Separators between the cables provide for the individual arrangement of the
cables. This applies in particular if the cables are installed on top of each other.
ƒ Install cables with strongly differing outside diameters and conductor materials
separately.
ƒ Connect both cable ends extensively in the trailing cable. Make sure that a minimum
distance of the 20−fold cable diameter between the fixing point and the last pivot
point of the trailing cable is maintained.
Commissioning/maintenance
ƒ After commissioning and after several test runs, check the correct installation of the
cables.
– If required, adjust them and compensate their lengths.
– Make sure that the cables do not rest on the inside or outside radius.
ƒ Carry out further checks every six months.
ƒ After a break or another damage of the trailing cable always replace all cables, since
the cables may also be permanently damaged.
ƒ Used cables must not be used again in other trailing cables.