Power Cables For Motors; Configuring The Cable Length - Siemens S120 Manual

10.6.2

Power cables for motors

10.6.2.1

Configuring the cable length

Where a longer motor cable is required, a higher rating of Power Module must be selected or
the permissible continuous output current I
output current I
Table 10- 10 Permissible cable lengths for shielded motor cables
PM340 Power Module
Rated
output current I
rated
1.3 A
1.7 A
2.2 A
3.1 A
4.1 A
5.9 A
7.7 A
10.2 A
18 A
25 A
32 A
38 A
45 A
60 A
75 A
90 A
110 A
145 A
178 A
Up to 70 m, always permissible
1)
The permissible cable length for an unshielded motor cable is 150% of the length for a
shielded motor cable.
Motor reactors can also be installed in order to permit the use of longer motor cables.
AC Drive
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
. The following configuration applies to Power Modules Blocksize:
rated
Length of the MOTION-CONNECT motor cable (shielded)
> 50 ... 100 m
Not permissible
I ≤ 1.1 × I
max rated
I ≤ 0.6 × I
continuous rated
I ≤ 1.2 × I
max rated
I ≤ 0.7 × I
continuous rated
I ≤ 1.2 × I
max rated
I ≤ 0.7 × I
continuous rated
I ≤ 1.5 × I
max rated
I ≤ 0.9 × I
continuous rated
I ≤ 1.6 × I
max rated
I ≤ 0.95 × I
continuous rated
1)
Always permissible
Always permissible
Cabinet design and EMC for components, Blocksize format
continuous
> 100 ... 150 m > 150 ... 200 m
Not permissible Not permissible
Not permissible Not permissible
Not permissible Not permissible
I ≤ 0.7 × I Not permissible
max rated
I ≤ 0.45 × I
continuous rated
I ≤ 1.3 × I Not permissible
max rated
I ≤ 0.8 × I
continuous rated
I ≤ 1.5 × I I
max rated
I ≤ 0.9 × I I
continuous rated
I ≤ 1.6 × I I
max rated
I ≤ 0.95 × I I
continuous rated
Not permissible Not permissible
10.6 Connection Methods
must be reduced in relation to the rated
>200 m
Not permissible
Not permissible
Not permissible
Not permissible
Not permissible
≤ 1.4 × I Not permissible
max rated
≤ 0.85 × I
continuous rated
≤ 1.5 × I Not permissible
max rated
≤ 0.9 × I
continuous rated
Not permissible
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