Emergency Operating Mode For Drive-Cliq Components - Siemens Sinamics S120 Function Manual

Figure 12-26 Sample topology for vector V/f control
12.11

Emergency operating mode for DRIVE-CLiQ components

In order to protect the drive system against excessive voltage when the Control Unit or
DRIVE-CLiQ communication fails (e.g. while a spindle is rotating), an autonomous
emergency operating mode (independent operation) is integrated in DRIVE-CLiQ
components for the following functions:
● Chopper mode (for Basic Line Module 20 kW / 40 kW in combination with an external
● Integrated voltage protection for machines with a high kinetic energy (armature short
Features
● Resumption and re-synchronization of DRIVE-CLiQ communication in emergency mode
● Changeover from emergency operation to normal operation without POWER ON of the
● Defined response with factory setting / project download.
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
braking resistor).
circuit controlled by the Motor Modules on the basis of the DC link voltage).
when necessary (only if clock cycle conditions have not changed) and without POWER
ON.
component.
12.11 Emergency operating mode for DRIVE-CLiQ components
Basic information about the drive system
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