4
Installation
50
07.2020
ba
-o
.2
.6
.0
-us
-3
.2
-ys
|
A1
18
67
50
1 Re
v A
E
4.12
Hook operated hoist limit switch with switch rod “
PL
S” (option)
The hook operated hoist limit switch is also available as “hook operated hoist limit switch
with weight ball” variant. Only one varia
nt can be mounted.
(1) C-profile
(2)
“PLS” switching unit
(3) Microswitch
(4) Shaft with switching cams
(5) Retaining plate
(6) Screw
(7) Switch rod
a
min. distance to first obstacle
c
Dimension between emergency and
operational hoist
limit switching, “top”
x1 Dimension between hook operated
hoist limit switching and emergency
hoist limit switching, “top”
S
(C
)
Hook operated hoist limit switch
S1
(A
)
Emergency hoist limit switching, “top”
S3
(B
)
Operational hoist limit
switching, “top”
Function
•
The bottom hook block moves against the shift rod (7) and hoists it.
•
The microswitch (3) is actuated via the shaft with switching cams (4).
•
The hoisting movement is stopped.
