Siemens CU240B-2 Parameter Manual page 581

Ramp-function generator selection
n_set_4
[3060.8]
From the basic ramp-function generator
n_set_5
[3070.8]
From the expanded ramp-function generator
ZSW n_ctrl
r1407
[2522.7] r1407 .7
For p1145 > 0, ramp-function generator tracking is activated when the torque limiting
<1>
responds. This means that the speed controller output only exceeds the torque limit by a
deviation that can be set via p1145.
For OFF1/OFF3, the ramp-function generator ramp is active. The ramp-function generator is
<2>
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.
Behavior of the response ramp of the torque limiting:
<4>
p1145 = 0.0: No ramp-function generator tracking. The ramp-function generator ramp is no longer in the range of the
frequency 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
r0898 .6
[2501.7]
Hochlaufgeber freigeben (von STW Ablaufsteuerung)
STW seq_ctrl
r0898.4
n_ctrl n_set 1
[2501.7]
p1155 [C]
1
(0)
<2>
<3>
0
0
n_ctrl n_set 2
p1160 [C]
(0)
<2>
RFG selection
p1115
RFG n_set at outp [1/min]
0
r1150
1
RFG track intens
0.0 ... 50.0
p1145 [D] (0.0)
<4>
[3060.8]
[3070.8]
[3060.8]
[3070.8]
[3080.8]
[3050.8]
3 4
1
x,y
0
T1
0 +
x
+
Interpolator
x,y
T1
x
Interpolator
Ramp-function generator tracking
Ramp-function generator status word
Bit Hochlaufgeber-Zustandswort
0 Ramp-up active
1 Ramp-down active
Ramp-function generator active
2
1
3 Ramp-function generator set
4 Ramp-function generator held
5 Ramp-function generator tracking active
6 Maximum limiting active
7 Reserved
8 Reserved
9 Reserved
10 Reserved
Reserved
11
12 Reserved
13 Reserved
14 Reserved
15 Reserved
5 6
FP_3080_97_51.vsd
13.12.2010 V4.4
x
y
n_ctrl n_set 1/2 [1/min]
y
<5>
r1169
t
+
n_ctrl setp sum [1/min]
r1170
[6030.1]
+
x
y
y
t
[3060.1]
Ramp flattening-off
[3070.3]
RFG ZSW
r1199
r1199 .5
RFG ZSW
r1199
r1199
RFG ZSW
r1199
r1199 .2 (p2148)
<1>
7 8
Function diagram
- 3080 -
G120 CU240B/E-2