Siemens SINAMICS S Series - Figure 2-240 8940 - Controller modulation depth reserve; controller DC link voltage (p3400.0 = 0)

Function Diagrams Active Infeed 2-1368
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Figure 2-240 8940 – Controller modulation depth reserve / controller DC link voltage (p3400.0 = 0)
- 8940 -
Function diagram
87654321
fp_8940_01_eng.vsd
DO: A_INF
SINAMICS S
23.01.07 V02.05.00
Active Infeed - Controller modulation depth reserve / controller DC link voltage (p3400.0 = 0)
mod_depth limit
p3480
Controller, modulation depth reserve
–
r3517
I_active ctrl set
+
+
+
[8946.1]
I_distr_factor
p3516
I_limit mot
p3530
P3531
I_limit regen
I_suppl_active stat
p3514
+
+
p3515
I_suppl active
r0074
Modulation depth
[8950.4]
r0077
Iq_set
<1>
<1> This controller increases (boosts) the DC link voltage when the modulation depth limit has been reached (p3480).
p0115[0] (250.00 µs)
P3481
Res_ctrl dyn
pre-control P
(0)
p3520[0]
pre-control P scal
p3521[0]
Power pre-control
pre-control P
(0)
p3520[3]
p3521[3]
pre-control P scal
+
+
PI = P/U
+
[8950.4]
U_line supply calculated
1,5
<2> When the pulses are enabled, the DC link voltage is ramped (p3566) from the actual value to the setpoint p3510.
Kp Tn
Vdc setpoint
300.00...1600.00 V
p3510 (600.00)
Controller DC link voltage
–
+
+
+
+
+
1
p3400.3
Kp
p3560
Tn
p3562
p0280
r3554
Vdc_ctrl I_comp
p3511
Vdc Z_set
r0088
Vdc setpoint
Vdc_max stat
[8960.7]
[8964.6]
r0070
Vdc_act
[8950.1]
<2>
0
1
0
Res_ctrl outpt
r3485
<3> Applies only if the " Master/slave“ function module is activated (r0108.19 = 1).
<3>
[8948.6]
[8948.8]
<3>
&
1
0
r0108.19
Close U_contr oper
p3513
0
1