Velocity Edge GX440 Instrucciones de operaciones Pagina 85

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Electrical installation
4.9 Other connections
Drive converter cabinet units
Operating Instructions, 10/2008, A5E00288214A
85
Connecting the braking resistor
WARNING
The cables must only be connected to terminal block -X5 when the cabinet unit is switched
off and the DC link capacitors are discharged.
CAUTION
The braking resistor cables must be laid in such a way that they are short-circuit and
ground-fault proof.
The length of the connecting cables between the cabinet unit and external braking resistor
must not exceed 100 m.
Table 4- 30 Terminal block -X5 – connection for external braking resistor
Terminal Description of function
1 Braking resistor connection
2 Braking resistor connection
Max. connectable cross-section: 70 mm²
Recommended cable cross-sections:
For L61/L64 (25 kW): 35 mm²
For L62/L65 (50 kW): 50 mm²
Table 4- 31 Installing the thermostatic switch for the external braking resistor in the monitoring train
of the cabinet unit
Terminal Description of function
T1 Thermostatic switch connection: connection with terminal X541:1 (P24 V)
T2 Thermostatic switch connection: connection with terminal X541:5 (DI11)
Max. connectable cross-section (due to TM31): 1.5 mm²
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