Commissioning 43
Unlike the AUTO pre-assignment, the running
curve can be changed by means of the
parameters shown in figure 5.4.
Reference if the decelerating distance has to be
reduced:
- Increase A_NEG or decrease
R_NEG1 up to 40 %.
- With elevators, leave R_NEG2
generally at 90 %.
? Arch travel in case of several different
floor distances.
Recommendation: Set R_POS2 to 90 % so that
the control device generates an optimally
rounded running curve even in the most
unfavourable case.
? Balance weight
If it is not possible to remove unnecessary
balance weights when old installations are
retrofitted, it can become necessary to set the
roundings R_POS2 and R_NEG as large as
possible.
? Parameter /Controller/DYN
The elevator has to work in the setting range of
70 to 100 %. In case of smaller values, the
control is increasingly attenuated, i.e. that the
reaction of the control is weaker and there can
be noticeable standard tolerances at the speed
transfers.
If - in case of a
setting of DYN = 70 %
- the
controller exit quickly travels with a constant high
running speed in the larger range, you have to
check whether the motor speed is correctly
recorded by the control device. This is of
particular importance if you do not use a high
wave tacho. The mounting of the incremental
speed transmitter has to be effected without
clearance and vibration. Possible mechanical
defects (e.g. squeezing of a guide shoe) can
influence the control in the same way.
Optimization of the positioning distance S_1
- Select parameter /Distances & Times/
S_1
.
- Check whether the rat runs are almost equal on all floors.
- With the parameter /DECELERATING/
S_DI3
it is possible to shift the disconnecting tag until the rat
run is about 5 cm.
Flush setting
If the elevator cabin comes to a halt on all floors with the same distance to flush, it is possible to shift the
disconnecting tag by means of the parameter /DECELERATING/S_D1. If the distance is not the same,
the correction has to be made directly in the shaft.
Setting of the average speed V2
In case of installations where the average speed is used, V2 is increased as far as the rat run is equal to
that achieved when the high speed V3 is decelerated. There is also the possibility to disconnect the
disconnecting tag for V2 by using the distance /DECELERATING/S_DI2.
Optimization of the start-up reaction
A final optimization assumes that the state of the rail guidance, the gear oil level, the cabin suspension
etc. are in order. The start-up reaction is determined by the parameters
T_VB
,
M_VB
and
M0
in menu
"ACCELERATING". The procedure depends on the existing type of installation (/INSTALLATION/ANL).
