Siemens SINAMICS G120X - Control Word 3 (STW3)

Bit Significance Remarks Signal inter‐
connection
in the con‐
verter
Telegram 20 All other tele‐
grams
14 1 = Motor rotates clockwise Internal converter actual value > 0. p2080[14] =
r2197.3
0 = Motor rotates counter-clock‐
wise
Internal converter actual value < 0.
15 1 = CDS display 0 = Alarm, con‐
verter thermal
overload
p2080[15] =
r0836.0 /
r2135.15
1)
If you change over from another telegram to telegram 20, then the assignment of the previous
telegram is kept.
Control word 3 (STW3)
Bit Significance Explanation Signal interconnection
in the converter
1)
Telegram 350
0 1 = fixed setpoint bit 0 Selects up to 16 different fixed
setpoints.
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 p1023[0] = r2093.3
4 1 = DDS selection bit 0 Changes over between settings
for different motors (drive data
sets).
p0820 = r2093.4
5 1 = DDS selection bit 1 p0821 = r2093.5
6 Not used
7 Not used
8 1 = technology controller enable -- p2200[0] = r2093.8
9 1 = enable DC braking -- p1230[0] = r2093.9
10 Not used
11 1 = Enable droop Enable or inhibit speed control‐
ler droop.
p1492[0] = r2093.11
12 1 = torque control active
0 = speed control active
Changes over the control mode
for vector control.
p1501[0] = r2093.12
13 1 = no external fault
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.
Advanced commissioning
6.3 Drive control
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC 211