7.3. Speed/Position measuring system
The basic version of the lift machines
WSG-18
is
equipped with a ECN 1313 sine-cosine encoder from Hei-
denhain GmbH. The encoder is connected via a 17-pole
signal plug connector which is fitted to the measuring
system housing.
Alternatively, the machines can be equipped with the
encoder types ERN 1387 also from Heidenhain GmbH.
These measuring systems are connected via a 17-pole
signal coupling fitted to the motor.
The basic version of the asynchronous lift machines
WLG-18
is equipped with a encoder ROD 426 from Hei-
denhain GmbH. It is connected via a 12-pole signal plug
connector which is fitted to the measuring system hous-
ing.
We can also provide other measuring systems on request.
We recommend the use of an appropriate
cable set to connect the measuring system
to the converter system. Cable sets can be
supplied as accessories.
The measuring system of the WSG-18 lift
machines is matched to the associated con-
verter. Do not change the adjustment as
this may make it impossible to use the
motor.
On the measuring system housing there is a
label showing the "offset angle" deter-
mined at the factory.
Note:
This value depends on the converter.
Warning
Note
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page
12
Datum/date
14.02.2006
Stand/version
0.17
Änderungen vorbehalten!
Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
Earthing
For safety reasons, it is very important that the motor be
properly and carefully earthed.
It is essential to use the earthing terminal
in the terminal box. In addition, an earth-
ing screw is provided on the motor frame
for the connection of a protective or earth-
ing conductor as specified in VDE 0100 and
VDE 0141 respectively.
When using shielded power cables, make sure the cable
shield metal contacts the motor frame over a large area.
This is achieved, for example, by special cable glands pro-
vided for shield contact.
Short-circuiting
The motor terminals of the synchronous lift
machines, type WSG, can be short-circuit-
ed, if required, to brake the lift machine
faster. This is, however, only permissible at
speeds less than the rated speed of the
respective motor.
Warning
Note
PTC-thermistor
The operating voltage of the PTC thermis-
tors is not allowed to exceed 25 V DC.
Caution
3 x 4000
3 x 1330
3 x 550
3 x 250
-20°C
130°C
145°C
150°C
Wider
stand / Resistance [
Ω
]
Temperatur
155°C
165°C
