Siemens SINAMICS S120 Manual page 518

Options
8.40 L61/L62, L64/L65, braking units
Note
Maximum length of the connection cables
The length of the connecting cables between the Braking Module and external braking
resistor must not exceed 100 m.
Braking resistor connection
The connection between the braking resistor on the Braking Module and R1 / R2 must be
made by the customer.
Table 8- 66
Terminal
R1
R2
Max. connectable cross-section: 50 mm²
Recommended connection cross sections:
● For option L61/L64 (25 kW): 35 mm²
● For option L62/L65 (50 kW): 50 mm²
To relieve the strain on the cables from the Braking Module to the external braking resistor,
they must be propped on the cable propping bar (C-type mounting bar) above the Braking
Modules.
Thermostatic switch
Table 8- 67
Terminal
T1
T2
Max. connectable cross-section: 1.5 mm²
Thermal overheating
The thermostatic switch must be evaluated by the Control Unit or a higher-level controller,
and a shutdown must be carried out if necessary.
516
Connection for external braking resistor
Function
Braking resistor connection
Braking resistor connection
Thermostatic switch connection
Function
Thermostatic switch connection
Thermostatic switch connection
WARNING
Cabinet Modules
Manual, 03/2013, A5E03263538A