Lenze 9400 - Manual (Page 502)

11 Basic drive functions
11.11 Limiter
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Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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11.11 Limiter
The basic function "Limiter" monitors the travel range limits via limit switches and parameterised
software limit positions and can lead the drive to defined limit ranges when being requested
accordingly by the safety module.
See also:  Safety engineering ( 366)
11.11.1 Internal interfaces | "LS_Limiter" system block
The LS_Limiter system block provides the internal interfaces for the basic function "Limiter" in the
function block editor.

Danger!
The safety is exclusively ensured by the safety module!
When the request for the safety function is cancelled, the drive can restarts
automatically.
Ensure by external measures that the drive only starts after a confirmation (EN 60204).

Note!
In order to make it possible for the basic function "Limiter" to lead the drive to the limit
ranges defined after a corresponding request by the safety module, before the limits set
for the safety module have been reached and it shuts down the drive, the limits for the
basic function "Limiter" have to be set lower than the limits of the safety module!

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_Limiter
LIM_dwControl
LIM_bLimitSwitchPositive
LIM_bLimitSwitchNegative
LIM_dnState
n
t
LIM_bActivateLimitedSpeed1
LIM_bLimitationActive