Limit Switch Overview - Tractel L 500 P Serie Manual Original De Montaje Y Uso

Operation and Installation Manual
18

Limit switch overview

Item Function of the limit switch
1 Load limiting device, trigger-
ing limit: permissible operat-
ing load x 1.25 (no picture)
2 Emergency limit switch UP
(example)
Limit switch (depending on the application, the accessories and the equipment of the hoist)
3 Operating limit switch UP
(example)
4 3 phase monitoring (three-
phase current only) (no
picture)
5
Hand crank limit switch (on
hoists with hand crank only)
6 Slack rope switch (on hoists
with reeler only, winding
monitor) (example)
7 Limit switch DOWN (not
shown)
8 Rope limit switch (application-
related required) (example)
9 Limit switch BSO (example)
EN-28
Effect
Limit switches required
Triggers an alarm, prevents lifting when the permissible
load is exceeded, lowering is permitted
Switch off the drive, the hoist stops
Prevents lifting, lowering is permitted
Monitors the drive direction of rotation; prevents the drive
being switched off, and the interchanging of the direction
of travel 'Up' and 'Down' between the hoist and control unit
Prevents the electric drive being switched on when in
manual mode
Prevents the formation of a slack rope on a reeler when
winding the rope; prevents lowering, lifting is permitted
Prevents lowering, lifting is permitted; must intervene
before the rope limit switch
Prevents lowering, lifting is permitted
Prevents lowering, lifting is permitted
Installed in models:
Triggers the EMER-
GENCY STOP
_ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _
No
Yes
No
Yes
Yes
No
No
No
No
G1035.2 - 11/2014
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