Maximum acceleration or deceleration
Maximum acceleration / deceleration value
Error reaction (=> see Chapter 4.3.1 Errors)
The maximum acceleration or deceleration can be monitored for all operating
modes. The level in pn36 is normalized (in [s-2]) as well as the ramps.
The acceleration is additionally limited to the value in pn36 in operating modes with
interpolator (8, 9, 10).
Thereby errors of the superior control can be compensated. Additionally an error
reaction should be activated in pn37.
Monitor the speed difference
Speed difference in % rated motor speed
Error is triggered if the time of the speed difference is
longer than pn39
speed difference stop mode
Error reaction (=> see Chapter 4.3.1 Errors)
speed difference calcula-
tion mode
Selection which value shall be taken as reference
value for the speed difference calculation.
Monitoring of the difference between the set speed (defined via pn41) and the ac-
tual speed.
By way it can be monitored e.g. whether the drive can follow a setpoint in the cor-
rect manner.
This can prevent e.g "overspeed" of a synchronous motor with wrong system posi-
tion, if the pn39 speed difference time is selected sufficiently small.
Parameter pn38 speed diff level is used to define the difference at which the error
flag is set.
Speed difference in % rated motor speed
With pn41 you can select which value is to be used as speed setpoint. The actual
speed value is either ru08 actual value or the encoder speed of channel A (ru09 A)
or channel B (ru09 B).
This selection of the actual speed value also determines the display in ru83
DiffSpeed.
ru83[1] ... ru83[4] display the 4 differences (ru84 – actual speed), (ramp output –
actual speed) etc.
The selection of "actual speed" for this display is also done via pn41.
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