Electrical connection
8.3 System integration
1FT2 synchronous motors for SINAMICS S120
Configuration Manual, 03/2021, A5E50645584B AA
117
Current-carrying capacity for power and signal cables
The current-carrying capacity of PVC/PUR-insulated copper cables is specified for routing types
B1, B2 and C under continuous operating conditions in the table with reference to an
ambient air temperature of 40° C. For other ambient temperatures, the values must be
corrected by the factors from the "Derating factors" table.
Table 8- 1
Cable cross-section and current-carrying capacity
Cross-section in mm²
Current-carrying capacity rms; AC 50/60 Hz or DC for routing type
B1 in A
B2 in A
C in A
Electronics (according to EN 60204-1)
0.20
-
4.3
4.4
0.50
-
7.5
7.5
0.75
-
9
9.5
Power (according to EN 60204-1)
0.75
8.6
8.5
9.8
1.00
10.3
10.1
11.7
1.50
13.5
13.1
15.2
2.50
18.3
17.4
21
Table 8- 2
Derating factors for power and signal cables
Ambient air temperature in °C
Derating factor according to EN 60204-1 Table D1
30
1.15
35
1.08
40
1.00
45
0.91
50
0.82
55
0.71
60
0.58
8.3.1.2
Rotating the connector on the motor
You can rotate power connectors and signal connectors within a limited range of angles.
Use a suitable socket connector to rotate the angle plug.
Unscrew and open the socket connector completely to avoid damaging the pin contacts.
Note
Rotating the connectors
•
Do not exceed the permissible range of rotation.
•
To ensure the degree of protection, do not rotate more than 10 times.
