▶
Cable shields not ending in a connector inside of the switch cabinet such as motor
cables must be connected to the ground bus.
▶
Both ends of the shield of shielded cables must generally be connected to the shell.
The line cross-sections should be selected carefully so that the maximum admissible
current is not exceeded at the maximum ambient temperature (see technical data). DIN
EN 60204-1 defines the admissible values for the individual line cross-sections which
must absolutely be taken into account.
The current carrying capacity in connection with the line cross-section of copper con-
ductors isolated with PVC or cables according to DIN EN 60204-1 for different types of
wiring are indicated in the following table. All values are related to an ambient temper-
ature of +40 °C and an operating temperature at the conductor of 70 °C.
Admissible current I [A]
Conductor cross-
section A [mm²]
Wiring type B2
(1)
Wiring type C
(2)
Wiring type E
(3)
0.75
8.5
9.8
10.4
1.00
10.1
11.7
12.4
1.50
13.1
15.2
16.1
2.50
17.4
21
22
4
23
28
30
6
30
36
37
10
40
50
52
16
54
66
70
25
70
84
88
35
86
104
110
50
103
125
133
70
130
160
171
95
156
194
207
120
179
225
240
Tab. 3: Current carrying capacity according to DIN EN 60204-1
(1)
cable laying in installation tubes or closed installation channels on or under the wall surface or in chan-
nels for underfloor (multicore or sheathed cables)
(2)
direct cable laying on or under the wall/ceiling or in cable trays (multicore or sheathed cables)
(3)
free cable laying with suspension ropes or on cable racks with a min. distance of 0.3 × cable diameter
to the wall (multicore or sheathed cables)
The following correction factors are provided for deviating ambient temperatures:
Ambient temperature T [°C]
Correction factor
30
1.15
35
1.08
40
1.00
45
0.91
50
0.82
55
0.71
60
0.58
95
Drive System SD2M - Hardware Description 036228xxF
General Information Regarding the Wiring
