Communication via PROFIBUS DP
4.2 Commissioning PROFIBUS
Communication
92 Function Manual, 12/2018, 6SL3097-5BD00-0BP0
4.2.6 Monitoring telegram failure
When monitoring the telegram failure, SINAMICS differentiates between two cases:
● Telegram failure with a bus fault
After a telegram failure and the additional monitoring time has elapsed (p2047), bit
r2043.0 is set to "1" and alarm A01920 is output. Binector output r2043.0 can be used for
a quick stop, for example.
Once the delay time p2044 has elapsed, fault F01910 is output. Fault F01910 triggers
fault response OFF2 (pulse inhibit) for the infeed and OFF3 (quick stop) for
SERVO/VECTOR. If no OFF response is to be triggered, the fault response can be
reparameterized accordingly.
Fault F01910 can be acknowledged immediately. The drive can then be operated even
without PROFIdrive.
Figure 4-5 Monitoring telegram failure with a bus fault
● Telegram failure with a CPU stop
After telegram failure, bit r2043.0 is set to "1". Binector output r2043.0 can be used for a
quick stop, for example.
Once the delay time p2044 has elapsed, fault F01910 is output. Fault F01910 triggers
fault response OFF2 (pulse inhibit) for the infeed and OFF3 (quick stop) for
SERVO/VECTOR. If no OFF response is to be triggered, the fault response can be
reparameterized accordingly.
Fault F01910 can be acknowledged immediately. The drive can then be operated even
without PROFIdrive.
Figure 4-6 Monitoring telegram failure for a CPU stop
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