Getting Started
A5E36037886-003, 04/2017
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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:
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 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 (FSA) does not have a built
Connecting an external braking resistor
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 42)".
You can connect the SINAMICS V90 servo drive to a servo motor with brake to use the function of motor holding brake.
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.
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