
Configuring the fieldbus
6.1 Communication via PROFIBUS
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
105
6.1.4.2
Control and status word 3
The control and status words fulfill the specifications of PROFIdrive profile version 4.1 for
"speed control" mode.
Control word 3 (STW3)
Control word 3 has the following default assignment. You can change the assignment with
BICO technology.
Table 6- 8
Control word 3 and interconnection with parameters in the converter
Meaning
Bit Value
Telegram 350
Comments
BICO interconnection
1)
0 1
Fixed setpoint, bit 0
p1020[0] = r2093.0
1 1
Fixed setpoint, bit 1
p1021[0] = r2093.1
2 1
Fixed setpoint, bit 2
p1022[0] = r2093.2
3 1
Fixed setpoint, bit 3
Selects up to 16 different fixed
setpoints.
p1023[0] = r2093.3
4 1
DDS selection, bit 0
p0820 = r2093.4
5 1
DDS selection, bit 1
Changes over between settings for
different motors (drive data sets).
p0821 = r2093.5
6 –
Not used
7 –
Not used
8 1
Technology controller enable
--
p2200[0] = r2093.8
9 1
DC braking enable
--
p1230[0] = r2093.9
10 –
Not used
11 1
1 = Enable droop
Enable or inhibit speed controller
droop.
p1492[0] = r2093.11
1
Torque control active
12
0
Speed control active
Changes over the control mode for
vector control.
p1501[0] = r2093.12
1
No external fault
13
0
External fault is active (F07860)
--
p2106[0] = r2093.13
14 –
Not used
15 1
CDS bit 1
Changes over between settings for
different operation interfaces
(command data sets).
p0811[0] = r2093.15
1)
If you switch from telegram 350 to a different one, then the converter sets all interconnections p1020, … to "0".
Exception: p2106 = 1.
Summary of Contents for SINAMICS G120 CU230P-2
Page 2: ......