Lenze 9400 - Manual (Page 388)

11 Basic drive functions
11.3 Quick stop
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Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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11.3 Quick stop
In contrast to Stop , the purpose of quick stop (QSP) is a stop in case of error. If quick stop is activated,
the drive is brought to standstill within the deceleration time set irrespective of the setpoint that is
preselected.

Tip!
Quick stop can also be set as error response for many monitoring functions ("quick stop by
trouble"). Detailed information can be found in the chapter " Diagnostics & fault analysis ".
( 598)
The source from which the quick stop was activated is shown in a bit coded manner in
C00159 .
11.3.1 Internal interfaces | "LS_Quickstop" system block"
The LS_Quickstop system block provides the internal interfaces for the basic function "Stop" in the
function block editor.

Note!
Through this, superimposed controls (e.g. synchronous or position control) may produce
following errors. If several drives execute a coordinated motion, the quick stop function
should only be used for the motion master (master drive) in order to maintain the
coordination.
When the basic function is activated, a start acceleration is considered.
 Start
acceleration/acceleration reduction when the basic function changes ( 380)

Note!
Ensure that the system block is called in a cyclic application task.
Basically, projects which only contain an unsolicited task and no cyclic task are not
permissible!
LS_Quickstop
QSP_bActivate1 QSP_bActive
STOP
n
t
³ 1
QSP_bActivate2
QSP_bActivate3
QSP_bActivateDCBrake