Siemens SINAMICS G115D Operating Instructions Manual page 183

Commissioning a motor holding brake
Precondition
The motor holding brake is connected to the converter.
Load can fall if the motor holding brake function is incorrectly set
For applications with a suspended load, such as cranes and elevators, there is a danger to
life if the "Motor holding brake" function is not completely set or is incorrectly set.
• When commissioning the motor holding brake function, secure any suspended loads,
• Set the motor holding brake function according to the following description.
• After commissioning, check that the motor holding brake and the motor control function
Procedure
1. Set p1215 = 1.
The motor holding brake function is enabled.
2. Check the magnetizing time p0346.
The magnetizing time must be greater than zero. The converter assigns the magnetizing
time when it is being commissioned.
3. Find out the mechanical opening and closing times from the technical data of the motor
holding brake.
– Depending on the brake size, brake opening times lie between 25 ms and 500 ms.
– Depending on the brake size, brake closing times lie between 15 ms and 300 ms.
4. Set the following parameters in the converter suitably for the mechanical opening and
closing times of the motor holding brake:
– p1216 ≥ mechanical opening time of the motor holding brake
– p1217 > mechanical closing time of the motor holding brake
5. Switch on the motor.
6. Check the acceleration behavior of the drive immediately after the motor has been switched
on:
– If the motor holding brake opens too late, the converter will accelerate the motor
– If the motor waits too long before accelerating after the motor holding brake has
SINAMICS G115D distributed drive
Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B
WARNING
e.g. by applying the following measures:
– Lower the load down to the floor.
– Secure the dangerous area so that nobody can inadvertently enter it.
reliably.
suddenly against the closed motor holding brake.
Set p1216 larger.
opened, reduce p1216.
Advanced commissioning
6.10 Motor holding brake
181