Then the bolts securing the transmitter bracket are slightly tightened so as to be able to shift the transmitter bracket
to a position where the A or B wheel are in engagement with the drive wheel. In this position, recheck the engagement of
the wheels and possibly using the spacers on the shaft adjust the height of the wheelset to the free wheel. There must be
a small play between the wheel A (or wheel B) and the driving wheel, so that the transmitter shaft is not stressed in the
direction perpendicular to its axis. Then correctly tighten the mounting bolts of the transmitter bracket and secure with
varnish.
Selection of gear of the wheel K3 and A, B wheels is performed according to the following table. If the required working
stroke is in overlap of two zones, it is preferable to choose a lower band.
Table for setting the operating stroke of the position resistive transmitter
Upon setting the suitable gear adjust the resistive transmitter according to the following procedure:
Due to the graduated gear ratio of the signal unit the potentiometer cursor does not move in the entire range of the
resistive track, but only in certain part.
When setting the signal unit to the end positions
"open"
and
"closed"
according to paragraph b) the resistive transmitter
is automatically set to a specific value.
Final setting of the transmitter is performed in the following manner:
Adjust the output shaft of the actuator to the
"closed"
position. Then loosen the screws of the transmitter contact plates
so that the entire transmitter can be rotated. Afterwards, rotate the transmitter to adjust it to the lowest resistance value
(approx. 4
Ω
, not less)
and re-tighten screws on adapters. When you turn on the actuator or turn the handwheel to
"open"
the resistance begins to rise up to the resistance value corresponding to the end position
"open" (50
Ω
to 98
Ω
max).
Thereby the transmitter is adjusted.
Local position indicator
Local position indicator
(Figure 8a)
serves to approximately determine the output shaft position. It is mechanically
attached to cam shaft of signalling unit pos. 49, and can detached. When setting up cam shafts of signalling unit, the whole
indicator assembly must be removed after releasing fixing screws pos. 48.
Position indicator setting
First of all, position and signalling unit must be adjusted as per point b) of Installation Manual. Once this unit
has been adjusted, attach indicator assembly to cam shaft and adjust indicator according to the following
procedure:
Adjust actuator output shaft to
“closed”
position. When actuator is in this position, after releasing screw pos. 47,
set
“closed”
sign of bottom indicator against signalling unit’s pillar, indicated on figure 2a with bold print.
(The
position of this pillar then corresponds to the position of the sign on the eye sight of the cover, once attached).
Tighten screw pos. 47 and move output shaft of actuator to
“open”
position. In this position, use the same approach
to adjust
“open”
sign of the top indicator, again against the same signalling unit pillar. While doing so, make sure
not to change the already set up position of bottom
“closed”
indicator. After attaching the cover, check the accuracy
of signs setting against sign on eye sight, and adjust position if necessary. Now the indicator has been adjusted
for both end positions.
11
I
A
0,5 - 1,1
1,2 - 2,5
0,9 - 1,8
B
0,9 - 1,9
2,3 - 4,6
1,7 - 3,4
II
A
1,7 - 3,5
4,0 - 8,2
3,1 - 6,4
B
3,2 - 6,4
7,7 - 15,4
5,9 - 11,7
III
A
5,8 - 11,7
13,8 - 27,7
10,6 - 21,4
B
10,4 - 20,8
25,6 - 51,3
19 - 38
IV
A
20 - 39,9
46,8 - 93,8
36,4 - 73
B
37,4 - 74,8
86 - 172,2
68,5 - 137
V
A
67,1 - 134,2
155,4 - 311,1
122,9 - 245,7
B
122,5 - 245,3
292 - 584,5
224,3 - 450
Type number
Wheel
on the
transmitter
Gear
52020
52021 - 52022
52023 - 52026
