Siemens SINAMICS G150 Operating Instructions Manual page 375

Note
The effective ramp-up time increases when you enter initial and final rounding times.
Effective ramp-up time = p1120 + (0.5 x p1130) + (0.5 x p1131)
Signal flow diagram
Figure 7-3
Ramp-function generator tracking
If the drive is in range of the torque limits, the actual speed value moves away from the
speed setpoint. The ramp-function generator tracking updates the speed setpoint in line with
the actual speed value and so levels the ramp.
p1145 can be used to deactivate ramp-function generator tracking (p1145 = 0) or to set the
permissible deviation (p1145 > 1). If the permissible deviation is reached, then the speed
setpoint at the ramp-function generator output will only be increased further in proportion to
the speed setpoint.
Parameter r1199.5 displays whether the ramp-function generator tracking is active.
Figure 7-4 Ramp-function generator tracking
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
Signal flow diagram: Ramp-function generator
Setpoint channel and closed-loop control
7.2 Setpoint channel
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