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34 communication parameters (uss, cb) – Siemens 440 User Manual

Page 195

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Issue 01/06

Parameter Description

MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0

195

3.34

Communication parameters (USS, CB)

P2009[2] USS

denormalization

Min: 0

CStat:

CT

Datatype: U16 Unit:

-

Def:

0

P-Group: COMM

Active: first confirm

QuickComm.: No

Max: 1

Enables denormalization for USS.

Possible Settings:

0 Disabled
1 Enabled

Index:

P2009[0] : Serial interface COM link
P2009[1] : Serial interface BOP link

Note:

If denormalization is enabled, the main setpoint (word 2 in PZD) is not interpreted as 100 % = 4000H, but as
"absolute" instead (e.g. 4000H = 16384 means 163.84 Hz ) if this is a frequency. Denormalization (P2009 =
1) only works for frequencies and is intended for backwards compatibility with MM3.

P2010[2] USS

baudrate

Min: 4

CStat:

CUT

Datatype: U16 Unit:

-

Def:

6

P-Group: COMM

Active: first confirm

QuickComm.: No

Max: 12

Sets baud rate for USS communication.

Possible Settings:

4 2400

baud

5 4800

baud

6 9600

baud

7 19200

baud

8 38400

baud

9 57600

baud

10 76800

baud

11 93750

baud

12 115200

baud

Index:

P2010[0] : Serial interface COM link
P2010[1] : Serial interface BOP link

P2011[2] USS

address

Min: 0

CStat:

CUT

Datatype: U16 Unit:

-

Def:

0

P-Group: COMM

Active: first confirm

QuickComm.: No

Max: 31

Sets unique address for inverter.

Index:

P2011[0] : Serial interface COM link
P2011[1] : Serial interface BOP link

Note:

You can connect up to a further 30 inverters via the serial link (i.e. 31 inverters in total) and control them
with the USS serial bus protocol.

Level

3

Level

2

Level

2