External Braking Resistor - Dcp, R1; Motor Holding Brake - X7 - Siemens SINAMICS V90 Operating Instructions Manual

4.6

External braking resistor - DCP, R1

The SINAMICS V90 has been designed with an internal braking resistor to absorb
regenerative energy from the motor. When the internal braking resistor cannot meet the
braking requirements (e.g. the alarm A52901 is generated), you can connect an external
braking resistor. For the selection of braking resistors, refer to Accessories (Page 35).
Connecting an external braking resistor
Damage to the drive
Before connecting an external resistor to DCP and R1, remove the short-circuit stick on the
connectors. Otherwise, the drive may be damaged.
For the connection of the external braking resistor, refer to System connection (Page 63).
4.7

Motor holding brake - X7

You can connect the SINAMICS V90 servo drive to a servo motor with brake to use the
function of motor holding brake.
The relevant information about the interface and wiring is described as follows.
Note
Motor holding brake
For detailed information about the function of motor holding brake, refer to the section "Motor
holding brake (Page 140)".
Motor holding brake - drive side
Maximum conductor cross-section: 1.5 mm
Input voltage tolerance: 24 V ± 10%
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 07/2015, 6SL3298-0AV60-0BP0
WARNING
Illustration Signal
B+
B-
4.6 External braking resistor - DCP, R1
+ 24 V, motor brake voltage positive
0 V, motor brake voltage negative
2
Description
Connecting
105