Siemens SINAMICS G120 List Manual page 659

Ramp-function generator selection
n_set_4
[3060.8]
From the basic ramp-function generator
n_set_5
[3070.8]
From the extended ramp-function
generator
ZSW n_ctrl
r1407
[2522.7]
r1407 .7
1 = Torque limit reached
<1> For p1145 > 0, ramp-function generator tracking is activated when the torque limiting
responds. This means that the speed controller output only exceeds the torque limit by a
deviation that can be set via p1145.
<2> For OFF1/OFF3, the ramp-function generator ramp is active. The ramp-function generator is set to
the setpoint (r1170) and stops the drive with the ramp-downtime (p1121 or p1135). STW1.4 (enable
ramp-function generator) is effective while the drive is stopped via the ramp-function generator.
Depending on the p1115, the basic ramp-function generator [3060] or the extended ramp-function
generator [3070] is effective.
<3> If technology controller is activated (p2200 > 0, p2251 = 1) connected with r2294.
<4> Behavior of the response ramp of the torque limiting:
p1145 = 0.0: No ramp-function generator tracking. The ramp-function generator ramp is no longer in the range of the speed actual value.
p1145 = 1.0: The ramp-function generator ramp remains as close as possible to the speed actual value.
p1145 > 1.0: The ramp-function generator ramp is steeper than for p1145 = 1.0 (higher "speed following error").
<5> The value is displayed correctly only with r0899.2 = 1 (operation enabled)
1 2
Setpoint channel
Ramp-function generator selection, status word, tracking
r0898
[2501.7]
r0898 .6
STW seq_ctrl
n_ctrl n_set 1
p1155 [C]
1
<2> (0)
<3>
0
0
n_ctrl n_set 2
p1160 [C]
<2> (0)
RFG selection
p1115
RFG n_set at outp [rpm]
0 r1150
1
RFG track intens
p1145 [D] (0.0)
3 4
Ramp-function generator enable
r0898.4
[2501.7]
1
x,y
T1
0
0 +
x
+
Interpolator
x,y
T1
x
0.0 ... 50.0
Interpolator
Ramp-function generator tracking
<4>
Ramp-function generator status word
Ramp-function generator status word
Bit
0 Ramp-up active
[3060.8], [3070.8]
Ramp-down active
1
2 Ramp-function generator active
1
3 Ramp-function generator set
Ramp-function generator held
4
5 Ramp-function generator tracking active
Maximum limiting active
[3050.8] 6
7 Ramp-function generator acceleration positive
Ramp-function generator acceleration negative
8
9 Reserved
10 Reserved
Reserved
11
12 Reserved
Reserved
13
14 Reserved
Reserved
15
5 6
fp_3080_97_53.vsd
09.12.2015
n_ctrl n_set 1/2 [rpm]
<5>
r1169
x
y
y
Plot friction characteristic
No OFF2
&
t
No OFF3
+
x
0
n_ctrl setp sum [rpm]
y
y r1170
+
1
t
From the ramp-function generator
friction characteristic [7010.6]
Ramp flattening-off
RFG ZSW
r1199
r1199 .5
RFG ZSW
r1199
r1199
r1199.2
<1>
7
Function diagram
G120 CU240B/E-2
V4.7.6
[3050.1]
[6030.1]
[6822.1]
[8011.2]
[3060.1]
[3070.3]
(p2148)
8
- 3080 -