FOG 442 9020, Manual

Page: 30 / 72

444 9160 / 444 9180 / 442 9020
E 219 GB - Issue 1
3 0
Adjustment of control platform:
Remove cable binding which provide safe transportation of the potentiometer.
Check the holder and the free movement of the toothed belt from the initiating rod of the carrying nut break
safety device via the roller of the analogue path counter to the free-running counter weight.
Before the initial operation of the lift, the two potentiometers which are responsible for measuring the lifting
carriage position are adjusted to.
The potentiometers must be aligned as follows:
1.) Do not place the toothed belts on the plastic wheels -> During the movement of the lift
carriages the toothed wheels of the potentiometers must not move.
2.) The lift carriages (main/opposite column) are driven into the mechanical reference
position (into lower end position in each case).
Drive control and opposite column into lower end position:
a.) Press H-Mode (Help Mode Key) until signal initiator sends out bleeps.
b.) Insert service plug on the electronic board (10-pole box socket).
c.) LED is switched off.
d.) Press H-Mode key -> LED turns orange.
e.) By pressing the key “down” both columns can be sent descending.
f.) Press H-key again -> LED turns green.
g.) Opposite column can be moved in either direction with the up / down key.
h.) Drive the auxiliary column in this mode into the lower end position.
Drive control column into lower end position:
i.) Press H-Taste again -> LED turns red.
i.) Main column can be moved in either direction with the up / down key.
j.) In this mode, drive the main column into the lower end position.
k.) Switch off lift with main switch.
l.) Remove service plug.
3.) Alignment of both potentiometers
a.) Switch lift on again -> LED turns orange.
b.) Position the service plug -> LED is switched off.
c.) Press the “up” key and hold down.
d.) Next: also press the “down” key twice until the LED blinks alternately orange/green.
Alignment of potentiometer opposite column:
e.) Case 1 : No tone is audible -> potentiometer is already in correct position.
When turning the potentiometer wheel a bleeping tone must be audible.
Next: turn again until the bleeps are no longer audible.
Case 2 : A continuous tone (far from the alignment point) or an interval tone (near the
alignment point) is audible.
Turn the potentiometer wheel cautiously in the direction of the lifting carriage until the tone
stops (alignment point is reached) or until mechanical bumper is hit (end position of
potentiometer). In this case the potentiometer wheel must be turned back by approx. One
quarter turn until the tone stops (alignment point is reached).
f.) Position the toothed belt from the lifting carriage on the potentiometer wheel. No tone
should now be audible. Should a tone be audible nevertheless, then the potentiometer
position must be corrected.