34 communication parameters (uss, cb) – Siemens 440 User Manual
Page 195
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