Siemens SINAMICS S120 Function Manual page 76

Extended setpoint channel
4.5 Ramp-function generator
Figure 4-8
Specific features of the extended ramp-function generator
The extended ramp-function generator is characterized by the following features:
● Ramp-up time T
● Ramp-down time T
● Initial rounding IR p1130[0...n]
● Final rounding FR p1131[0...n]
● Effective ramp-up time
T
● Effective ramp-down time
T
– OFF3 ramp-down
– OFF3 ramp-down time p1135[0...n]
– OFF3 initial rounding p1136[0...n]
– OFF3 final rounding p1137[0...n]
● Set ramp-function generator
– Setting value ramp-function generator p1144[0...n]
– Signal, set ramp-function generator p1143[0...n]
● Select ramp-function generator rounding type p1134[0...n]
– p1134 = "0": continuous smoothing; rounding is always active. Overshoots can occur. If
– p1134 = "1": discontinuous smoothing; for a setpoint change, the change is immediately
● Ramp-function generator configuration, deactivate rounding at zero point p1151[0...n]
● Freezing of the ramp-function generator using p1141 (not in jog mode r0046.31 = 1)
74
Ramp-up and ramp-down with the basic ramp-function generator
p1120[0...n]
up
p1121[0...n]
dn
= T + (IR/2 + FR/2)
up_eff up
= T + (IR/2 + FR/2)
dn_eff dn
the setpoint changes, final rounding is carried out and then the direction of the new
setpoint is adopted.
made to the direction of the new setpoint.
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions