Základní přehled polohových spínačů ...
Poznámky redaktora
56
1 0
\ R
R Reset Device
Snap action:
B Snap
Dependent (slow) action:
L ..... N..
Casing
• mmwidewith standardized dimensions corresponding
to EN50047
Casing fixing
• screws inthetop part
Block contacts
• Contact configuration: N.." normally closed contact(s) (symbol )......" contact(s).............
-------------------------- Blue manual reset button
— -
Cover
• Closed using 3screwfor LS3. S
Plastic casing..
• Immunity electromagnetic disturbances.......
They comply with the requirements European Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform Eu
ropean and international standards...M.O..Limit Switches with Latch and Manual Reset
Plastic Casing IP65 and Metal Casing IP66 Width
Applications
Easy use, the lim itches safety applications ith latch and anual reset ffe cific qualities:
• Visible operation (fault memorisation)......
LS3.....M... N..........C.
• Positive opening operation @
• Snap dependent action
• The contacts are electrically separated
Connecting terminals
• M3...
Assembly using4 screws for LS3........ 55and ........
Limit switches with latch and manual reset are equipped with N. this application they detect monitor: cabin overtravel, cabin speed means speed limiting device, energisation the
parachute block detection excessive speed with respect the set-point value, etc......... 1N..
• Electrically separated contacts.......
Type Example LLLSJ
L I
S G
Casing width: mm. safety contact(s) remain the open position....
Return the initial operating state takes place voluntary action the reset button. 3
1cable inlet 1/2" NPT plastic adaptor (LS35P) 1/2" NPTfor cable gland
(LS35M) ....
Description
LS3.. contact blocks with positive opening operation the
"N......5 (+,-) posidriv screw
(Screw head with captive cable clamp)
• Marking conformto IEC60947-1, IEC60947-5-1,
EN50005 and EN50013 standards
Terminal for protective conductor placed nearthe
cable inlet and marked: (LS3.C..
.-R (plastic casing, width) limit switches with latch and manual reset, which are made fibreglass reinforced UL-V0 thermoplastic
material, offer double insulation and degree protection IP65....Monly)
• M3............
These cific features ake the lim itches ideal detection and onitoring lts hoisting achines, ctric lifts, freig t
elevators, escalators, conveyor belts, etc.......5 cable gland.
• Capability for strong current switching (conventional thermal current A)......Zb Overlapping early make
Operating heads: (see panorama)
11 ............M...C..Slow/ Simultaneous
D ......5 (+,-) pozidriv screw
(Screw headwith captive cable clamp)
A variety operating head options:
• Plain plunger
• Roller plunger
• Roller lever adjustable not, etc.
Metal casing ................Zb Non-overlapping late make
C ..C.............
Assembly using4 screws for LS3...C.P..P. 1
2
1cable inlet M20x 1.
Limit switches with latch and manual reset comply with the requirements standard 81-1: safety rules for the construction and installations
of electric lifts.-R
One piece sealing gasket ensuretightness
„
Electrical connection:
• 1(LS30P/M) cable inlet for 13..
• Precision operating positions (consistency)...
• Contact blocks with positive opening operation the "N.......5 for ISO20cable gland .... N............................-R (metal casing, width) limit switches, which are made zinc alloy (zamack), have degree protection IP66.......... 74, 78.
1cable inlet for 13......P....... 3
0
1cable inlet for cable gland..................O........5 cable gland
• 1(LS31P/M) cable inlet for cable gland
• 1(LS32P/M) cable inlet for ISO cable gland
• 1(LS33P/M) cable inlet for ISO20 cable gland
• 1(LS35P) cable inlet 1/2" plastic adaptor
• 1(LS35M) cable inlet for 1/2" cable gland
Suitable for conduit connection only with use adaptor
sleeve optionally provided manufacturer (on request)........C.. After actuating the control device and overshooting the latching point, the N.
LS
codes
1SBC141157CG2G2
...-R
• Closed using screws for LS3.........C........
