Siemens SINAMICS S120 Function Manual page 60

Extended Setpoint Channel
Extended setpoint channel
Properties of the extended ramp-function generator
Fig. 2-13
S RFG ramp-up time Tup
S RFG ramp-down time Tdn
S Initial rounding-off time IR
S Final rounding-off time FR
S Effective ramp-up time
Tup_eff = Tup + (IR/2 + FR/2)
S Effective ramp-down time
Tdn_eff = Tdn + (IR/2 + FR/2)
S OFF 3 deceleration ramp
-- OFF3 ramp-down time
-- OFF3 initial rounding-off time
-- OFF3 final rounding-off time
S Set ramp-function generator
-- Ramp-function generator setting value
-- Set ramp-function generator signal
S Ramp-function generator rounding-off type
-- p1134 = "0": Rounding is always active. Can result in overshoot.
-- p1134 = "1": Final rounding-off is not active if the input word is reduced
abruptly during ramp-up.
2-60
y
Tup
p1082
x
y
--p1082
dy/dt
FR
IR IR
Tup_eff
Extended ramp-function generator
Tdn
FR FR
IR IR
Tdn_eff
p1120[D]
p1121[D]
p1130[D]
p1131[D]
p1135[D]
p1136[D]
p1137[D]
p1144[C]
p1143[C]
p1134[D]
© Siemens AG, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition
FR
t