E2
1-12-2 Kawana, Fujisawa
Kanagawa 251-8522 Japan
URL
: https://www.azbil.com
(12)
The information and specifications in this document are subject to change without notice.
E2
© 1997–2022 Azbil Corporation. All Rights Reserved.
1st edition: July 1997
6th edition: June 2022
CAUTION
Do not use silicon rubber cable, silicon adhesive or grease that contains silicon. Using such items might
impair electrical continuity.
Wire the switch as shown in the figure below. (This figure is for the LS series.)
Installation
CAUTION
•
Tighten the screws according to the tightening torques indicated in the product specifications. Take care not to over-tighten
the screws. Over-tightening may strip threads and damage other parts. Also, undertightening may impair performance
such as the sealability of switches and other characteristics.
•
When the limit switch is used in locations where it is subject to water, oil, dust or chips, it may allow ingress of them
through conduit switch via the conduit. For this reason, take measures such as covering the switch after installation until
wiring is completed. Be sure to use seal connectors that are compatible with the cable size when wiring.
Typical Tightening Torques
Series
Item
LS
SL1
Housing (front mounting screw)
M5
5 to 6 N•m
M4
1.3 to 1.7 N•m
Housing (rear mounting screw)
M6
5 to 6 N•m
M4nut 4 to 6 N•m **
Cover
M4
1.3 to 1. 7 N•m
-
Head
M3.5
0.8 to 1.2 N•m
-
Switch terminal
M4
1.0 to 1.4 N•m
M3
0.4 to 0.6 N•m
Lever (roller lever)
M5
4 to 5.2 N•m
-
** Attachment of nut on SL 1 plunger type - None
Adjustment, Maintenance & Inspection
CAUTION
•
Set overtravel (OT) between 70 to 100% of the stipulated characteristic value. If OT is set too small, vibrations or impact
may result in chattering of contact or contact failure.
•
Prevents dogs from touching the lever. Failure to do so might result in the operating shaft deforming or faulty switch
resetting.
Treating Conduits
(Switches Not Provided With Cable)
CAUTION
•
Use seal connectors (PA1 series, to be ordered separately) or flexible piping (PA3 series, to be ordered separately) that en-
sure a sealing performance equivalent to or higher than IP67 for the conduits.
•
Select connectors that match the outer diameter of the cable in use.
•
Tighten connectors with a tightening torque of 8 to 12 N•m.
•
Turn the connector compression nut 1.5 or 2 turns further after the cable feels firmly tightened.
