Siemens SINAMICS DCM Betriebsanleitung Seite 569

A three-phase feeder protected using a motor circuit breaker is provided to supply a motor
fan as standard.
The motor fan circuits are controlled using a contactor in the SINAMICS DCM Cabinet. The
control is performed simultaneously with the device or cabinet fan via the output at the
customer terminal strip X71:19.
If none of the options W20 to W41 (motor fan 1) or W70 to W91 (motor fan 2) are selected,
the setting range of the motor circuit breaker is set according to following table:
Table 11- 17 Motor circuit breaker setting range for the standard motor fan feeder
Rated DC current of the unit
15 A to 60 A
90 A to 280 A
400 A to 450 A
600 A to 850 A
950 A to 1200 A
1500 A to 3000 A
Note
These options are intended for operation on grounded line supplies.
Connection
Table 11- 18 Terminal strip –X3 – connection for motor fan
Terminal
3
4
5
PE
Max. connectable cross-section: 4 mm²
Commissioning
The motor circuit breaker is set by the customer on the plant side. The setting must be
documented in the system-specific circuit diagram when commissioning the system.
Cable routing
The cables are routed into the cabinet corresponding to the following diagrams.
SINAMICS DCM Cabinet
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Setting range of the motor circuit breaker
0.35 A to 0.5 A
0.9 A to 1.25 A
2.8 A to 4 A
7 A to 10 A
11 A to 16 A
2 x (11 A to 16 A)
Designation
L1
L2
L3
PE
Options
11.6 Motor-relevant options
Technical data
Feeder, motor fan 1
PE protective conductor
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