14
L531
2,
1
675D
.0/
10.
10
Construction and function
Operating elements
The SKF operating elements are available as accessories for the TFG and the SKF control
unit. If you have any questions, please consult the corresponding operating manuals for
these devices.
Function
A description of its function allows you to understand what the telescopic pillar and its
individual parts do.
Functional principles
The functional principle of the TFG telescopic pillar is based on a pulling or pushing force
for the movement of centric and excentric loads. A DC motor drives a lead screw via a
worm gear. A spindle nut, which is attached to the push tube, moves up and down on
the lead screw. The rotation direction is determined by the control unit and works on the
reverse polarity voltage principle. The built-in brake decelerates the movement or holds
the position at a standstill.
TFG 1..
The telescopic pillar TFG 1.. is not equipped with a control unit and must be oper-
ated with a suitable SKF control unit and a SKF operating element.
TFG 5.., TFG 9..
: The telescopic pillars TFG 5.. and/or TFG 9.. are equipped with mains
connection and an integrated control unit. A suitable SKF operating element can be con-
nected directly to TFG 5.., TFG 9...
Connections (a1)
❙
TFG 1..
Equipped with a cable with a DIN8 plug for a SKF control unit.
❙
TFG 5.., TFG 9..
Equipped with a mains connection and a connection for a SKF
operating element. With the corresponding options selected, the TFG 5.., TFG 9.. can be
energized (
) via the final plate (
)
Base plate (a2)
The base plate has 4 openings for one fastening screw each. Its purpose is to fasten the
pillar to the application.
Housing (a12)
The housing must not be removed.
The cover is protected with two fastening screws (
) in accordance with IP30 and
must not be removed while in operation. The purpose of the cover is to protect the pillar
unit and the connections.
❙
TFG 1..:
Located under the cover are the connections with the DIN 8 plug for a SKF
control unit, and the optional mains cable and operating element feed through.
❙
TFG 5.., TFG 9..:
Located under the cover are the connections for the optional
mains cable feed through. The control unit housing has openings for the corresponding
cables (
Operating voltage
display (a11)
❙
Only for TFG 5.., TFG 9..:
With mains supply, the operating voltage display will
show a green light.
