User Manual

Setpoint channel
Function diagrams
2-575
© Siemens AG 2011 All Rights Reserved SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 06/2011
Fig. 2-68 3070 – Extended ramp-function generator
- 3070 -
Function diagram
87654321
FP_3070_97_01.vsd
Setpoint channel
G120 CU230P-2
13.12.2010 V4.4
Extended ramp-function generator
0
Tup
FRIRFRIRFRIRFRIR
Tdn
p1082
Tup_eff <2> Tdn_eff <2>
-p1082
IR FR
[3050.8]
[3080.5]
0
p1082
x
y
<3>
[3050.5]
n_max
x
t
y
dy/dt
y
0 1 0 1 0 1
1
0
1
0
0
1
0
1
x
y
+

10 10
[3080.1]
[2501.7]
p1140
[2501.7]
p1141
[3080.8]
0
p1142
[2505.7]
p1122
[2501.7]
1
0
1
0
0
<1>
t
n
soll
t
t
<2>
<3> p1134 = 0:
p1134 = 1:
1 = Bypass ramp-function generator
STW setpoint chan
r1198
r1198
.15
STW seq_ctrl
r0898
r0898
.6
1 = Enable frequency setpoint
r1119
RFG setp at inp [1/min]
STW seq_ctrl
r0898
r0898
.5
0 = Freeze ramp-
function generator
1 = Internal RFG enable
0 = Internal fast stop
(0)
RFG accept set v
p1143 [C]
RFG round-off type
0 ... 1
p1134 [D] (0)
RFG setting value
(0)
p1144 [C]
Freeze ramp-function generator
Ramp flattening-off
RFG ramp-up time
0.000 ... 999999.000 [s]
p1120 [D] (10.000)
0 = Internal fast stop
RFG OFF3 t_end_del
0.000 ... 30.000 [s]
p1137 [D] (0.000)
f_set_5
STW seq_ctrl
r0898
r0898
.4
1 = Enable ramp-function
generator
r1149
RFG acceleration [1/s²]
Other status bits
Ramp-up active
Ramp-down active
Ramp-function generator, status bits
RFG tol HL/RL act
0.000 ... 1000.000 [1/min]
p1148 [D] (19.800)
Effective ramp-up time: Tup_eff = Tup + (IR/2 + FR/2)
Effective ramp-down time: Tdn_eff = Tdn + (IR/2 + FR/2)
Rounding-off is always active.
Overshoots can occur.
Final rounding-off is not effective
when the setpoint is suddenly
reduced during ramp-up.
Expanded ramp-function
generator
<4>
With activated Technology controller (p2200 > 0, p2251 = 0) the ramp-function generator is bypassed (r2349.5).
<4>
[2634.8]
[2634.8]
[2634.8]
<5>
Value range and/or factory setting depend on Power Module
RFG ramp-down time
0.000 ... 999999.000 [s]
p1121 [D] (30.000)
OFF3 t_RD
0.000 ... 5400.000 [s]
p1135 [D] (30.000)
RFGOFF3 t_strt_rnd
0.000 ... 30.000 [s]
p1136 [D] (2.000)
RFG t_end_delay
0.000 ... 30.000 [s]
p1131 [D] (2.000)
<1>
Inhibited during jogging.
<5> <5> <5>
<5>
RFG t_start_round
0.000 ... 30.000 [s]
p1130 [D] (2.000)
<5>