Extended setpoint channel
3.6 Ramp-function generator
Drive functions
76
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
3.6
Ramp-function generator
Function of the ramp-function generator
The ramp-function generator is used to limit the acceleration in the event of abrupt setpoint
changes and so helps to prevent load surges throughout the complete drive train. The ramp-
up time p1120[0...n] and ramp-down time p1121[0...n] can be used to set mutually
independent acceleration and deceleration ramps. This allows a controlled transition to be
made in the event of setpoint changes.
The maximum speed p1082[0...n] is used as a reference value for calculating the ramps
from the ramp-up and ramp-down time. For a quick stop (OFF3), a special adjustable ramp
is available via the ramp-down time p1135[0...n] (e.g. for quick, controlled stopping after an
EMERGENCY OFF button has been pressed).
There are two types of ramp-function generator:
●
Basic ramp-function generator with
–
Ramp up and ramp down
–
Ramp down for quick stop (OFF3)
–
Tracking configurable via parameter p1145
–
Setting values for the ramp-function generator
●
The extended ramp-function generator also has
–
Initial and final rounding
Note
The ramp-function generator cannot be frozen (via p1141) in jog mode (r0046.31 = 1).
Properties of the basic ramp-function generator
Figure 3-8
Ramp-up and ramp-down with the basic ramp-function generator
●
Ramp-up time T
up
p1120[0...n]
●
Ramp-down time T
dn
p1121[0...n]
Содержание SINAMICS S120
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Страница 24: ...Contents Drive functions 24 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Страница 202: ...Servo control 4 21 Voltage precontrol Drive functions 202 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Страница 296: ...Vector control 5 23 Asynchronous pulse frequency Drive functions 296 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Страница 312: ...V f control vector control 6 5 Vdc control Drive functions 312 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
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Страница 1044: ...Appendix A 2 Documentation overview Drive functions 1044 Function Manual 11 2017 6SL3097 4AB00 0BP5 A 2 Documentation overview ...
Страница 1082: ...Appendix A 7 Functions of SINAMICS S120 Combi Drive functions 1082 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
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