Siemens SIMATIC ET 200pro FC-2 Operating Instructions Manual page 144

Advanced commissioning
7.9 Setpoint calculation
Extended ramp-function generator
The ramp-up and ramp-down times of the extended ramp-function generator can be set
independently of each other. The optimum times that you select depend on your particular
application in question and can range from just a few 100 ms (e.g. for belt conveyor drives)
to several minutes (e.g. for centrifuges).
Initial and final rounding permit smooth, jerk-free acceleration and braking.
The ramp-up and ramp-down times of the motor are increased by the rounding times:
● Effective ramp-up time = p1120 + 0.5 × (p1130 + p1131).
● Effective ramp-down time = p1121 + 0.5 × (p1130 + p1131).
142
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257324B AF
SIMATIC ET 200pro FC-2 converter