Setpoint channel
Function Diagrams
2-1233
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Figure 2-120 3080 – Ramp-function generator selection, status word, tracking
- 3080 -
Function diagram
87654321
fp_3080_51_eng.vsd
DO: SERVO, VECTOR, VECTORGL, VECTORMV
SINAMICS
09.01.07 V02.05.00
Setpoint channel - Ramp-function generator selection, status word, tracking
[5020.1]
[6030.1]
[8010.5]
[3060.8]
[3070.8]
RFG selection
p1115
Ramp-function generator selection
Ramp-function generator status word
1
Ramp-function generator status word
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Bit
[3060.8]
[3070.8]
Ramp-up active
Ramp-function generator held
Ramp-function generator set
Ramp-function generator active
Ramp-down active
Ramp-function generator tracking active
Maximum limiting active
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
r1199
RFG ZSW
Ramp-function generator tracking
0
1
r1170
n_ctrl setp sum
1
0
0
1
0
0
1
0
Enable speed setpoint (from the STW sequence control)
r0898.6
Enable ramp-function generator (from the STW sequence control)
r0898.4
n_ctrl n_set 1
(0)
p1155[C]
<2>
n_ctrl n_set 2
(0)
p1160[C]
+
+
[2501.7]
[2501.7]
Interpolator
x
y
+
+
<3> The interpolator is only effective for clock-cycle synchronous PROFIBUS operation and sign-
of-life received from the master (STW2.12 ... STW2.15).
<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 (SERVO: to the actual value, VECTOR: 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.
When the function module "extended setpoint channel" (r0108.8 = 0) is not active for OFF1/
OFF3, the down ramp of the basic ramp-function generator is effective (refer to n_set_4 on
[3060.8]).
Interpolator
x y
[3080.8]
[3050.8]
p1189.0
p1189.1
r1150
RFG n_set at the output
Torque limit reached
r1407.7[2522.7]
Ramp flattening-off
[3060.1]
[3070.3]
Ramp-function generator tracking active
r1199.5
RFG tracking intensity
0.0...50.0
p1145[D] (1.3)
0
<4>
<2>
<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").
<1>
Expanded setpoint channel
r0108.8
1
0
<101> To view the pre-assignment of the sampling times in p0115, refer to p0112.
<101>
<5> For SERVO, the following applies: Only when the function module "extended setpoint channel" is activated (r0108.8 = 1).
<5>
r1199.2 [8010.5]
r1169
n_ctrl n_set 1/2
<3>
0
1
0
1
n_set_4
From the expanded ramp-function generator
From the basic ramp-function generator
n_set_5
Refer to [1020.7]
p0115[3] (Drive Object)
1
0
From the ramp-function
generator friction characteristic
[7010.6]
&
No OFF2
Plot friction characteristic
No OFF3
Refer to [1020.7]
p0115[1] (Drive Object)
t
x,y x
y
t
x,y x
y
T1
T1
[3060.8]
[3070.8]
<6>
<6> The value is displayed incorrectly unless the drive is enabled.
&
Synchronization
No OFF1
No OFF2
No OFF3
r3812
1
0
+
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