Communication via PROFIBUS
Cyclic communication
4-110
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
Table 4-11 Description of A_STW1 (status word for A_INF), continued
Bit BICOCommentsMeaning
11 Bypass energized
1
Bypass energized
Pre-charging is complete and the bypass
relay for the pre-charging resistors is
energized.
BO: r0899.11
0
Bypass not energized
Pre-charging not yet complete
1 Line contactor energized
12 Line contactor energized
0 Line contactor not energized
BO: r0899.12
13
14
15
Reserved - - -
A_STW1 (status word for B_INF)
See function diagram [8926].
Table 4-12 Description of A_STW1 (status word for B_INF)
Bit
Meaning Comments BICO
1 Ready to power up
0 Ready to power up
0 Not ready to power up
BO: r0899.0
1 Ready
1
Ready
DC link pre-charged, pulses inhibited
BO: r0899.1
0 Not ready
2 Operation enabled
1
Operation enabled
Vdc = Vdc_setp
BO: r0899.2
0 Operation inhibited
1 Fault active
3 Fault active
0 No fault
BO: r2139.3
1 No OFF2 active
4 No OFF2 active
0 OFF2 active
BO: r0899.4
5 Reserved - - -
6 Power-up inhibit
1
Power-up inhibit
Fault active
BO: r0899.6
0 No power-up inhibit
1 Warning active
7 Warning active
0 No alarm
BO: r2139.7
8 Reserved - - -