Siemens SINAMICS G120 List Manual page 855

RFG t_RD scal
p1139 [C]
RFG ramp-up time
0.000 ... 999999.000 [s]
p1120 [D] (10.000)
RFG t_RU scal
p1138 [C]
(1)
STW setpoint chan
p1122 r1198
1 = Bypass ramp-function generator
<5>
r1198 .15
[2505.7]
1 = Speed setpoint enable
r0898
p1142
r0898 .6
[2501.7]
RFG setp at inp [rpm]
1
r1119
[3050.8]
0
0
STW seq_ctrl
r0898
p1141
0 = Freeze ramp-
<1>
r0898 .5
[2501.7]
function generator
1 = Internal RFG enable
[2634.8]
0 = Internal quick stop
[2634.8]
RFG accept set v
p1143 [C]
(0)
RFG setting value
<1> Inhibited during jogging.
<2> Effective ramp-up time: Tup_eff = Tup + (Ti/2 + Tf/2)
Effective ramp-down time: Tdn_eff = Tdn + (Ti/2 + Tf/2)
<3> p1134 = 0: Rounding-off is always active.
Overshoots can occur.
p1134 = 1: Final rounding-off is not effective
when the setpoint is suddenly
reduced during ramp-up.
<4> Value range and/or factory setting depend on Power Module.
<5> With activated Technology controller (p2200 > 0, p2251 = 0) the ramp-function generator is bypassed (r2349.5).
1 2
Setpoint channel
Extended ramp-function generator
RFG ramp-down time
0.000 ... 999999.000 [s]
p1121 [D] (10.000)
<4>
(1)
0 = Internal quick stop
[2634.8]
Ramp flattening-off
[3080.8]
Freeze ramp-function generator
y
0
1
x
p1082
1
0
0
1
<3> -p1082
RFG round-off type dy/dt Ti
0 ... 1
p1134 [D] (0)
p1144 [C]
(0)
t
t
n
soll t
3 4
OFF3 t_RD RFG t_start_round RFGOFF3 t_strt_rnd
0.000 ... 5400.000 [s] 0.000 ... 30.000 [s] 0.000 ... 30.000 [s]
p1135 [D] (0.000) p1130 [D] (0.000)
<4> <4>
0 1 0 1
0 0
0 1 0 1
Ti
Tup Tdn
Extended ramp-function
x
generator
y
Tf Ti Tf Ti Tf
Tdn_eff <2>
Tup_eff <2>
x
+
y
p1082
[3050.8]
Reference value for the ramp-
function generator
5
fp_3070_97_51.vsd
05.09.2017
RFG t_end_delay RFG OFF3 t_end_del
0.000 ... 30.000 [s] 0.000 ... 30.000 [s]
p1136 [D] (0.000) p1131 [D] (0.000) p1137 [D] (0.000)
<4> <4>
0 1
Tf
y
0
STW seq_ctrl
p1140 r0898
r0898 .4
[2501.7]
1 = Enable ramp-function generator
Ti Tf
t
Other status bits
Ramp-up active
1
Ramp-down active
0
–
RFG tol HL/RL act
0.000 ... 1000.000 [rpm]
p1148 [D] (19.800)
6 7
Function diagram
G120 CU250S-2
V4.7.9
1
n_set_5
[3080.1]
0
RFG acceleration [rev/s²]
r1149
[3080.5]
Ramp-function generator,
status bits
8
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