Simple Brake Control - Siemens SINAMICS S120 Function Manual

7.15

Simple brake control

The "Simple brake control" is used exclusively for the control of holding brakes. The holding
brake is used to secure drives against unwanted motion when deactivated.
The trigger command for releasing and applying the holding brake is transmitted via DRIVE-
CLiQ from the Control Unit, which monitors and logically connects the signals to the system-
internal processes, directly to the Motor Module.
The Motor Module then performs the action and activates the output for the holding brake.
The exact sequence control is shown in function diagrams 2701 and 2704 (see
SINAMICS S120/S150 List Manual). The operating principle of the holding brake can be
configured via parameter p1215.
Figure 7-7
The start of the closing time for the brake depends on the expiration of the shorter of the two
times p1227 (standstill detection monitoring time) and p1228 (pulse cancellation delay time).
Dangerous overload of the holding brake
The holding brake must not be used as a service brake.
When holding brakes are used, the special technological and machine-specific conditions
and standards for ensuring personnel and machine safety must be observed.
The risks involved with vertical axes, for example, must also be taken into account.
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Sequence diagram, simple brake control
WARNING
Basic functions
7.15 Simple brake control
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