Quick Stop In The Event Of A Power Failure Or Emergency Stop (Servo) - Siemens SINAMICS S120 Function Manual

Applications

12.4 Quick stop in the event of a power failure or emergency stop (servo)

12.4 Quick stop in the event of a power failure or emergency stop (servo)
A drive line-up generally responds when the power fails with an OFF2, even when a Control
Supply Module and a Braking Module is being used. This means that the connected motors
coast down. The Control Supply Module provides the electronics with power via the supply
system or DC link. In this way, controlled movements can be made if a power failure occurs
provided that the DC-link voltage is still available. The following section describes how all the
drives carry out a quick stop (OFF3) if the power fails.
Figure 12-4 Example: interconnection of quick stop due to power failure or emergency off
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Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions