Gearless Lift Machine
WSG-S2.3
Operating Instructions
Seite/page
11
Datum/date
08.10.2013
Stand/version
0.8
Änderungen vorbehalten!
Subject to changes without notice!
Short-circuiting the motor terminals
• The motor terminals of the synchronous lift machines, type WSG, can be short-circuited, if required, to brake
the lift machine faster.
• However, this is only permissible at speeds less than or equal to the rated speed of the respective motor.
PTC thermistors
The maximum operating voltage of the PTC thermis-
tors is not allowed to exceed 2.5 VDC
3 x 4000
3 x 1330
3 x 550
3 x 250
-20°C
130°C
145°C
150°C
W
id
e
r
s
t
a
n
d
/
R
e
s
is
t
a
n
c
e
[
Ω
]
Temperatur
155°C
165°C
Cable cross-section required:
The currents specified under the machine data refer to duty type S3-40%. This must be taken into account
when selecting the cable cross-section required. The continuous r.m.s. value required for the selected cable is
approximated
from:
I
r.m.s. (cable)
»
I
N (motor, S3-40%)
/ 1,58
The table on the right gives the standard values for
the current-carrying capacity of PVC cables at a
maximum ambient temperature of 40 °C:
Cable cross-
section
Permissible max.
current
(r.m.s. value)
Permissible max.
motor current IN
(S3 - 40%)
1,0 mm
2
13,1 A
20,7 A
1,5 mm
2
15,7 A
24,8 A
2,5 mm
2
22,6 A
35,7 A
4,0 mm
2
29,6 A
46,7 A
