External Braking Resistor - Dcp, R1 - Siemens SIMOTICS S-1FL6 Compact Operating Instructions

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"
in the SINAMICS V90, SIMOTICS S-1FL6 Operating Instructions.
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 40)".
4.7 Motor holding brake
You can connect the SINAMICS V90 PN servo drive to a servo motor with brake to use the function of motor holding brake.
NOTICE
Shortening the service life of motor brake
The motor brake is used for holding purpose only. Frequent emergency stops with the motor brake will shorten its service
life.
Unless absolutely necessary, do not apply the motor brake as an emergency stop or deceleration mechanism.
54
Getting Started
A5E37208904-003, 04/2017