ZIEHL-ABEGG ZETADYN 1DV Series, Описание системы

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20 Control and controller functions
3.2.8 Readjustment
For the readjustment of the correction of the
elongation of a rope when discharging the cabin,
the driving command "V_Z" is triggered.
For safety reasons, the control device ignores all
other speed settings when triggering the input
"V_Z". Unlike the normal positioning process
(normal stop), the mechanical brake "MB"
engages without delay.
In order to avoid oscillations, the control should
wait a certain time until the rope is put at rest
again.
Figure 3.9 Readjustment with the input "V_Z"
3.2.9 Direction reversal
The control device offers the possibility to change the direction set during running. This characteristic is of
particular importance in case of manual control.
In Figure 3.10, the switching processes between the change of direction are illustrated in detail.
Figure 3.10 Reverse direction during running
V
t
inputs
outputs
V _Z
ST
RB
MB
RF
V_Z
RV1
RV2
V
t
inputs
outputs
V..
-V..
ST
RB
MB
RF
V..
RV1
RV2