Siemens SINAMICS G115D Operating Instructions Manual page 254

Advanced commissioning
6.18 Electrically braking the motor
DC braking when a fault occurs
DC braking initiated by a control command
DC braking when the motor is switched off
252
Requirement:
Fault number and fault response are assigned
via p2100 and p2101.
Function:
1. A fault occurs, which initiates DC braking as
response.
2. The motor brakes along the down ramp to
the speed for the start of DC braking.
3. DC braking starts.
Requirement:
p1231 = 4 and p1230 = control command,
e.g. p1230 = 722.3 (control command via
DI 3)
Function:
1. The higher-level control issues the
command for DC braking, e.g. using DI3:
p1230 = 722.3.
2. DC braking starts.
If the higher-level control withdraws the
command during DC braking, the converter
interrupts DC braking and the motor acceler-
ates to its setpoint.
Requirement:
p1231 = 5 or p1230 = 1 and p1231 = 14
Function:
1. The higher-level control switches off the
motor (OFF1 or OFF3).
2. The motor brakes along the down ramp to
the speed for the start of DC braking.
3. DC braking starts.
Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B
SINAMICS G115D distributed drive