External Braking Resistor - Dcp, R1 - Siemens SINAMICS V90 Operating Instructions Manual

Connecting

4.6 External braking resistor - DCP, R1

Grounding
To ensure better EMC effects, you are recommended to strip the encoder cable and connect
the cable shield to earth, as shown in the following figure:
4.6 External braking resistor - DCP, R1
The SINAMICS V90 PN 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 more information about how to select a braking resistor, see Section
"Accessories (Page 36)".
Note
The 200 V variant servo drive with rated power of 0.1 kW (FSB) does not have a built-in
resistor.
Connecting an external braking resistor
NOTICE
Damage to the drive
Before connecting an external resistor to DCP and R1, remove the connection between
terminals DCP and R2; otherwise, the drive may be damaged.
For more information about how to connect the external braking resistor, see Section
"System connection (Page 87)".
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SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2017, A5E37208830-003