Siemens SINAMICS S120 Installation And Start-Up Manual page 99

A_CTW1 (control word for A_INF)
See function diagram [8920].
Table 4-5 Description of A_CTW1 (control word for A_INF)
Bit Meaning
0 ON/OFF1
OFF2
1
Note:
Control signal OFF2 is generated by ANDing BI: p0844 and BI: p0845.
2 Reserved
3 3 Enable operation Enable operation
4 Reserved
Inhibit motor operation Inhibit motor operation
5
Note:
When "Inhibit motoring operation" is present, power can still be taken from the DC link. The DC
link voltage is then no longer controlled. The voltage level is the same as the rectified value of the
current line voltage.
Inhibit regenerating Inhibit regenerating
6
Note:
If regenerative operation is inhibited and power is fed to the DC link (e.g. by braking the motor),
the DC link voltage increases (F30002).
Acknowledge error
7 Note:
Acknowledgement takes place at a 0/1 edge via BI: p2103 or BI: p2104 or BI: p2105.
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
Comments
ON
0/1
Pulse enable possible
OFF1
0
Reduce DC link voltage via ramp (p3566), then
pulse inhibit/line contactor open
No OFF2
1
Enable possible
OFF2
0
Immediate pulse cancellation and power-on
inhibit
- -
Enable operation
1
Pulse enable is present
Inhibit operation
0
Pulse inhibit is present
- -
Inhibit motor operation
1
Motoring operation as step-up converter is
inhibited.
Enable motoring operation
0
Motoring operation as step-up converter is
enabled.
Inhibit regenerating
1
Regenerative operation is inhibited.
Enable regenerative operation
0
Regenerative operation is enabled.
0/1 Acknowledge error
Communication via PROFIBUS
Cyclic communication
BI: p0840
BI: p0844
-
BI: p0852 BI: p0852
-
BI: p3532 BI: p3532
BI: p3533 BI: p3533
BI: p2103
BICO
4-99