Základní přehled polohových spínačů ...
Poznámky redaktora
Put the cable tension byusing the turnbuckle tillthe green
mark appear the metal plunger the extremity the red head (fig.
'13-14 Max.. Insert theside the Limit
Switch turnbuckle, and the other side the cable extremity spring.P98-SCR series: maximum
LS4. When the head well place, re-screw the screws with tightening torque 0. 1).
5.
| Starting position (green mark): the safety system
-21-22 pulling the blue reset button.Safety Limit Switches with Pulling Cable for
Emergency Stop with Latching and Manual Reset
Travel and Operating diagrams and Installation
Starting position
(green mark)
Po Co
Cable traction
Cl
21-22
13-14-
F Ces
StPl ,
F1
A
R R1
Ces’
1
F
Cl -
Contacts position
21-22 Contact closed
21-22 Contact open
Contacts identification (example)
Po Free position: position the switch actuator
(ring plunger) when external force exerted
on it... travel posi
tion L.-SCR and LS3.M98.
4.
6.
§ Minimum travel for arming the safety system and
3 obtain the starting position under the effect
of force F.
Cp Positive opening travel: minimum travel the
switch actuator (ring plunger), from the starting
position, ensure the positive opening opera
tion the normally closed contact (N.M98.). necessary, according the Limit Switch position turn the head unscrewing the fixing screws oder that the blue reset button become
accessible. Check that the apparatus operate correctly before switch the machine following the below test procedure :
a) pull slowly the cable, the blue reset button doesn’t change position but the N.-SCR and LS6.. travel position: maximum acceptabletravel
position the switch actuator (ring plunger). contact open and operate the "normal" stop the
machine.M98-SCR series: maximum
End spring
G maximum
G 3^5 maximum
-----------1 1------------1------------ 1-----------1 1------------
G
I
G
J
« G
J I
« ^
ikllll
49
1SBC141157C0202
. order have the cable correctly guided, fix tightly the apparatus and the cable support rigid elements..
Ces, Ces’ Emergency Stop and Latching travel: minimum
travel obtain the emergency stop and the
mechanical latching the safety system under
the effect force F1.8 Nm. Pull the blue reset button arm the safety system and close the safety contacts.-SCR and LS6. The inside contacts the Limit Switch will always change position each time the cable will operated (by pulling) shown the above
diagram.
C Max.
3.M98.C.
C Distance between the starting position and
the free position the cable breaks...
o L
Installation
To obtain the right operation the apparatus, please follow carefully below instructions:
1.
2.
Pp Positive opening position: position switch
actuator (ring plunger) from which positive
opening ensured.M98.P98-SCR series:
LS4..M98-SCR series:
L maximum
L maximum
LS3.C...-SCR and LS3.. travel (maximum travel): distance between
the starting position and the max.
c) order switch again the device, please come back point and repeat the operation (if necessary). The use those apparatus involve the respect following standard: 1088, 292, 954-1
LS3.
b) Pull the cable with force, the blue reset button change position and operate the emergency stop the machine with latching of
the safety system.
