Setting The Braking Function - Siemens SINAMICS V20 Operating Instructions Manual

Commissioning via the built-in BOP
5.6 Function commissioning
Parameter Function
P2354 PID tuning timeout length [s]
P2355 PID tuning offset [%]
Output values
r2224 CO: Actual fixed PID setpoint [%]
r2225.0 BO: PID fixed frequency status
r2245 CO: PID-MOP input frequency of the RFG [%]
r2250 CO: Output setpoint of PID-MOP [%]
r2260 CO: PID setpoint after PID-RFG [%]
P2261 PID setpoint filter time constant [s]
r2262 CO: Filtered PID setpoint after RFG [%]
r2266 CO: PID filtered feedback [%]
r2272 CO: PID scaled feedback [%]
r2273 CO: PID error [%]
r2294 CO: Actual PID output [%]
5.6.2.5

Setting the braking function

Functionality
The motor can be electrically or mechanically braked by the inverter via the following brakes:
● Electrical brakes
– DC brake
– Compound brake
– Dynamic brake
● Mechanical brake
– Motor holding brake
DC braking
DC braking causes the motor to stop rapidly by applying a DC braking current (current
applied also holds shaft stationary). For DC braking, a DC current is impressed in the stator
winding which results in a significant braking torque for an asynchronous motor.
DC braking is selected as follows:
● Sequence 1: selected after OFF1 or OFF3 (the DC brake is released via P1233)
● Sequence 2: selected directly with the BICO parameter P1230
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Setting
Range: 60 to 65000 (factory default: 240)
Range: 0.00 to 20.00 (factory default: 5.00)
Operating Instructions, 11/2016, A5E34559884-006
SINAMICS V20 Inverter