FOG 442 9020, Manual

Page: 31 / 72

444 9160 / 444 9180 / 442 9020
31
E 219 GB - Issue 1
Alignment of potentiometer main column.
a.) Press the “up” key and hold down.
b.) Next: also press the “down” key until the LED blinks alternately red / orange.
c.) Further alignment, see points a.), b.)
d.) Switch off lift.
e.) Remove service plug.
f.) Switch lift on again.
Setting upper or lower end position.
Two potentiometers for setting the upper (potentiometer R4) and the lower end position (potentiometer R3) are
available on the platform.
When both lifting carriages have reached the same level, then align the lower end position with the Poti R3.
Note: During adjustment, take into account the after-running of the lifting carriages when they are lowered.
After 1-2 weeks the lifting carriages have more after-running than in a new condition.
Note: During lowering, switching off is made via the poti values and the adjustment of the Poti R3 on the control
platform. There is no additional limit switch active and adjusting the potentiometer wrongly leads to the
lifting carriage driving on the floor or the column base plates and can damage the drive system.
Before ascending to the upper end position, check that the Poti R4 is not placed at the limit stop but in central
position on the control platform.
If ascending to the upper end position takes place without checking the poti alignment, the
lifting carriage can drive against the end plate mechanically and the sliding elements of the
lifting carriages are damaged and the drive system can be damaged.
Connection of the external upper and lower safety switches:
ATTENTION : ONLY POTENTIAL FREE SWITCHES MUST BE USED.
IF THESE CONTACTS ARE NOT USED;THEN BRIDGES MUST BE INSERTED.
At the plug “WIE1” an external safety OFF-switch can be connected at the bottom between connection 1 & 3.
At the plug “WIE1” an external safety OFF-switch can be connected at the top between connection 2 & 4.
Volume control is operated through potentiometer (R5).
A further plug (6 poles) is designed for production/update and is not used during normal operation.
The key pad can optionally be connected to one of the two plugs (J1/J2).
Mounting of housing:
Insert the spindle protection sheets through the lift
carriage and screw to the columns at the top and at
the bottom.