Limit Switch Overview - Tractel Tirak L 500 P Série Manuel D'installation Et De Maintenance

13

Limit switch overview

Item Function of the limit switch
1 Load limiting device,
triggering limit: permissible
operating load x 1.25 (no
picture)
2 Ultimate lifting limit switch
(example)
Limit switch (depending on the application, the accessories and the equipment of the hoist)
3 Lifting limit switch (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 Lowering limit switch (not
shown)
8
Rope limit switch (application-
related required) (example)
9 Limit switch BSO (example)
G1035.4 – 01/2019
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
Installation and operating manual
Triggers the Installed in models:
EMERGENCY stop
_ _ _ _ _ _ _ _ _ _ _ _ _

No

Yes

No

Yes

Yes

No

No

No

No
EN-59