Siemens 400 V / 210...590 A operating instructions Function Diagrams, 10-1

SIMOVERT MASTERDRIVES AFE Operating	Siemens AG 6SE7087-6CX86-2BA1
Instructions

10-1

Fig. 10-1 Block diagram of the AFE control

Line frequency

r032

Analog input 1				r032 Line frequency
	Vsa	Line synchronization	Θ Phase angle	Θ Phase angle
Analog input 2
	Vsb

V(supply)

P081

Line filter

r030

K

Line filter L

pre-control

Gating unit

I(active,act)

r264

Current controller

Control factor

Phase current 1

r764

Vd correction

Current transformation

and

Phase current 3

P

voltage limiting

I(reactive,act)

r263

r255

r256

I(active,set)

I(reactive,set)

r004

r180

Vd(act) Firing angle limit

Src I setpoint I setpoint Kp

P486

P487

Kp

I(max,mot)

RES

0

0000

BAS

P164

P160

r490

P587

I(active,set)

I(reactive,set)

SST1

2002 to 2016

r263

r255

CB/TB

3002 to 3016

1

SCB 1 with SCI (Slave 1)

4101 to 4103

X

I(reactive,set)

SCB 1 with SCI (Slave 2)

4201 to 4203

0

calculation

SCB1/SCB2 (peer-to-peer)

4501 to 4505

SCB 2 (USS)

4502 to 4516

0: Vd control

1: Current control

Operating mode P164

P125

Src Vd setpoint Vd setpoint Kp

Reactive power

P122

cos(phi)

P120

Vd(set)

r126

P443

P444

Kp

Kp dyn

Ti

P161

Line filter C

P080

factor

Kp

P129.x P130.x P131.x

I(max,gen)

Vn

P071

RES

Imax(set)

0

0000

BAS

Vd(set)

r174

In

P072

1001

2 x P071

r447

Kp

Ti

Fn

P078

r139

In

i²t calculation

SST1

2002 to 2016

P072

Vd(set)

CB/TB

3002 to 3016

X

limitation

+

–

SCB 1 with SCI (Slave 1)

4101 to 4103

SCB 1 with SCI (Slave 2)

4201 to 4203

r004

SCB1/SCB2 (peer-to-peer)

4501 to 4505

2 x r030

PI controller

Output current

SCB 2 (USS)

4502 to 4516

r303

Vd(act)

10

Function Diagrams

01.2004

Function Diagrams