Siemens SINAMICS G120 - Control and Status Word 1

Configuring the fieldbus
7.3 PROFIdrive profile for PROFIBUS and PROFINET
Inverter with CU230P-2 Control Units
118 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Figure 7-4 Interconnection of the receive words
The telegrams use - with the exception of telegram 999 (free interconnection) – the word-by-
word transfer of send and receive data (r2050/p2051).
If you require an individual telegram for your application (e.g. for transferring double words),
you can adjust one of the predefined telegrams via parameters p0922 and p2079. For
details, please refer to the List Manual, function diagrams 2420 and 2472.
7.3.1.1
Control and status word 1
The control and status words fulfill the specifications of PROFIdrive profile version 4.1 for the
"closed-loop speed controlled" mode.
Control word 1 (STW1)
Control word 1 (bits 0 … 10 in accordance with PROFIdrive profile and VIK/NAMUR, bits 11
… 15 specific to the inverter).
Bit
Significance
Explanation
Signal
interconnection
in the inverter
Telegram 20
All other
telegrams
0 0 = OFF1 The motor brakes with the ramp-down time p1121 of the
ramp-function generator. The inverter switches off the motor
at standstill.
p0840[0] =
r2090.0
0 → 1 = ON The inverter goes into the "ready" state. If, in addition
bit 3 = 1, then the inverter switches on the motor.
1 0 = OFF2 Switch off the motor immediately, the motor then coasts
down to a standstill.
p0844[0] =
r2090.1
1 = No OFF2
The motor can be switched on (ON command).