Technical data

Drive functions
7.2 Basic functions
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
195
7.2.6 Simple brake control
Features
● Automatic activation by means of sequence control
● Standstill (zero-speed) monitoring
● Forced brake release (p0855, p1215)
● Application of brake for a 1 signal "unconditionally close holding brake" (p0858)
● Application of brake after "Enable speed controller" signal has been canceled (p0856)
Description
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 control command for opening and closing the holding brake is transferred directly to the
drive via by the Control Unit that logically links and monitors the signals with the system-
internal processes.
The Power Module then performs the action and activates the output for the holding brake.
The exact sequence control is illustrated in the SINAMICS S110 List Manual (FP 2701). The
operating principle of the holding brake can be configured via parameter p1215.
OFF
Output signal
Holding brake
Speed setpoint
ON
Speed actual value
Pulse enable
Magnetizing completed
Closing timeOpening time
Threshold
[1/min]
[1/min]
n
Threshold
p1227
p 1228
p1226
p1226
p 1216 p1217
/ 1 (p0840[0]=0)
n
t
t
1
1
t
t
1
t

Figure 7-31 Function chart: simple brake control