Siemens SINAMICS G120 Operating Instructions Manual page 98

Configuring the fieldbus
7.2 Communication via PROFIBUS
Control word 1 (STW1)
Control word 1 (bits 0 ... 10 in accordance with PROFIdrive profile and VIK/NAMUR, bits 11
... 15 specific to inverter).
Table 7- 6 Control word 1 and interconnection with parameters in the inverter
Bit Value Significance
Telegram 20
0 0 OFF1
1 ON
1 0 OFF2
1 No OFF2
2 0 Quick stop (OFF3)
1 No quick stop (OFF3)
3 0 Disable operation
1 Enable operation
4 0 Lock ramp-function generator
1 Operating condition
5 0 Stop ramp-function generator
1 Ramp-function generator enable
6 0 Inhibit setpoint
1 Enable setpoint
7 1 Acknowledging faults
8 Not used
9 Not used
10 0 PLC has no master control
1 Master control by PLC
11 1 ---
1)
12 Not used
13 1 ---
1)
14 1 ---
1)
15 1 CDS bit 0
If you change over from another telegram to telegram 20, then the assignment of the previous telegram is kept.
1)
96
Comments
All other telegrams
Motor brakes with the ramp-down time p1121 at
standstill (f < f
With a positive edge, the inverter goes into the "ready"
state, with additionally bit 3 = 1, the inverter switches on
the motor.
Switch off motor immediately, motor coasts to a
standstill.
---
Quick stop: Motor brakes with the OFF3 ramp-down
time p1135 down to standstill.
---
Immediately switch-off motor (cancel pulses).
Switch-on motor (pulses can be enabled).
The ramp-function generator output is set to 0 (quickest
possible deceleration).
Ramp-function generator can be enabled
The output of the ramp-function generator is "frozen".
Motor brakes with the ramp-down time p1121.
Motor accelerates with the ramp-up time p1120 to the
setpoint.
Fault is acknowledged with a positive edge. If the ON
command is still active, the inverter switches to"closing
lockout" state.
Process data invalid, "sign of life" expected.
Control via fieldbus, process data valid.
Direction reversal Setpoint is inverted in the inverter.
MOP up The setpoint stored in the motorized potentiometer is
increased.
MOP down The setpoint stored in the motorized potentiometer is
decreased.
Not used Changes over between settings for different operation
interfaces (command data sets).
) the motor is switched off.
min
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
P No.
p0840[0] =
r2090.0
p0844[0] =
r2090.1
p0848[0] =
r2090.2
p0852[0] =
r2090.3
p1140[0] =
r2090.4
p1141[0] =
r2090.5
p1142[0] =
r2090.6
p2103[0] =
r2090.7
p0854[0] =
r2090.10
p1113[0] =
r2090.11
p1035[0] =
r2090.13
p1036[0] =
r2090.14
p0810 =
r2090.15
SINAMICS G120C Inverter