Lenze E94AxPExxxx - Manual (Page 424)

12 Basic drive functions
12.2 Stop
424
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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12.2 Stop
The standard stop (in the following called "stop") of the drive will be automatically activated by the
internal state machine if a basic function is deactivated and the drive is not yet at standstill.
• The drive is decelerated to standstill along a parameterised deceleration ramp
• While the drive is braked to standstill, the state machine is in the "Drive is stopped" function
state.
• If meanwhile another basic function is activated, this basic function takes over the control of
the drive from the current speed on and the function state "Drive is stopped" is abandoned.
• If the drive is at standstill, a change-over to the basic state "Drive at standstill" is
automatically effected.
• An acceleration phase active at the time of activated stopping process is considered by the
normal stop, i.e. the current acceleration is first lead to "0" with the parameterised S-ramp time
before the real deceleration process starts.
• If the controller is enabled with the shaft coasting (controller inhibit and pulse inhibit are
deactivated), the drive is lead to standstill from the current speed.

Stop!
The basic functions " Speed follower ", " Torque follower ", and " Position follower " do not
take over the control of the from the current speed, but immediately with the setpoint
defined, which may cause a jerk!

Note!
• As the stop function takes into account the acceleration active at the moment of
activation, the deceleration of the stop function should always be set greater than the
deceleration of the active process in order to avoid a possible overshoot.
• If the stop function is activated while the basic function " Torque follower " or the
states "Controller inhibited" or "Error" are active, the drive is braked to standstill
starting from the current speed and without taking into account the current
acceleration.
 Start acceleration/acceleration reduction when the basic function changes ( 420)