Siemens sinamics dcp - Fig. 3-34 6818 - Voltage controller

3 Function diagrams 3.9 Closed-loop control
SINAMICS DCP
354 List Manual (LH21), 05/2016
Fig. 3-34 6818 – Voltage controller
fp_6818_89.vsd
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- 6818 -
SINAMICS DCP
25.04.2016 v 1.2
DO: DCP_CTRL
- Voltage controller
Function diagram
Pulse frequency
+
-
y
x
U_ctrl Tn
p54126
r54132
U_ctrl I-comp disp [%]
[6850.2]
[6850.2]
[2585.8]
r00899.11
Pulses enab
PWM limit reached
[6825.8]
r54135.00
U_ctrl lim reach
1
0
r55073
I_set corrected [%]
[6806.6]
p54100
(1)
U_ctrl setp s_src
r55115
Lim I_lim actual [%]
U_ctrl Kp
p54125
U_ctrl act val T
p54122
U_ctr act val Tv
p54121
r55501
Act val U S1 [%]
r55502
Act val U S2 [%]
p54102
U_ctrl act val sel
p54105
(0)
U_ctrl act s_src
p54141
(52002)
U_ctr I_lim posS_s
Lead-
Lag-
Block
[6810.7]
+
r54131
U_ctrl Kp disp [%]
Boost side 2
[6835.2]
Boost side 1
[6835.2]
>1
_
&
U_ctr VDC dead rng
p54124
r55505
Act val U inner S1 [%]
1
2
3
4
r55506
Act val U inner S2 [%]
[6850.2]
[6850.2]
[6820.1]
p54142
(52004)
U_ctr I_lim negS_s
y
x
Setpoint
--->
Reactor
current
r55170
Lim I_ re_sp U dyn [%]
[6817.7]
1
0
Boost side 2
[6835.2]
Boost side 1
[6835.2]
>1
_
+
I_set significance
p55060
0
0
p54102
U_ctrl act val sel
+/-
U_ctrl t_RU/t_RD
p54101 (0.050 s)
+
+
+
1
0
0%
+
dc link
buffering
1
[6818.7]
r54135.01
U_act dead range
r54135.02
U_ctrl enabled
>1
_
U_ctrl Vdc t_min
p54146
1
[6818.2]
p54145
(1)
U_ctrl enab s_src
+
current setpoint
U_ctrl droop
p54127