Vector control
5.4 Speed controller
Drive functions
222 Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Speed controller response when a brake is opened
After a motor has been a magnetized, "Open brake" is controlled. The value that the BICO
input delivers defines the speed controller response:
● BICO input p1475 (torque setting value for the motor holding brake) supplies a value of 0:
– The speed controller I component is immediately enabled; this means that the system
can respond to a slipping load and establish a holding torque.
– Depending on the parameter assignment, the speed setpoint remains inhibited until
the brake opening time has elapsed (p1275.6 = 0) - or until the brake feedback signal
is received (p1275.6 = 1).
● BICO input p1475 (torque setting value for the motor holding brake) supplies a value ≠ 0:
– The speed controller I component is held at the specified setting value until the "Brake
open" feedback signal is received.
– Only then are the speed controller I component and the speed setpoint enabled.
Function diagrams (see SINAMICS S120/S150 List Manual)
6040
- Speed controller with/without encoder
Overview of important parameters (see SINAMICS S120/S150 List Manual)
r0062
filter
r0063[0...2]
p0340[0...n]
Automatic calculation of motor/control parameters
r0345[0...n]
Nominal motor starting time
p1442[0...n]
Speed controller actual speed value smoothing time
p1452[0...n]
Speed controller actual spe
ed value smoothing time (without encoder)
p1460[0...n]
Speed controller P gain adaptation speed, lower
p1462[0...n]
Speed controller integral time adaptation speed, lower
p1470[0...n]
Speed controller encoderless operation P gain
p1472[0...n]
troller sensorless operation integral time
p1475[0...n]
CI: Speed controller torque setting value for motor holding brake
p1478[0...n]
CI: Speed controller integrator setting value
r1482
CO: Speed controller I torque output
r1508
fore supplementary torque
p1960
Rotating measurement selection
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