NAMCO EA530 Series Product Instructions
EA530 Series Compact Limit Switches-
Product Instructions
Publication #
EAIS02
WARNING:
A SWITCH IN A PROTECTIVE INTERLOCKING CIRCUIT SHOULD BE
USED WITH AT LEAST ONE OTHER DEVICE THAT WILL PROVIDE A
REDUNDANT PROTECTIVE FUNCTION, AND THE CIRCUIT SHOULD
BE SO ARRANGED THAT EITHER DEVICE WILL INTERRUPT THE
INTENDED OPERATION OF THE CONTROLLED EQUIPMENT.
(PROPOSED NEMA ICS 2-225.95 St'd.)
SERVICING ENERGIZED INDUSTRIAL CONTROL EQUIPMENT CAN
BE HAZARDOUS. SEVERE INJURY OR DEATH CAN RESULT FROM
ELECTRICAL SHOCK, BURN OR UNINTENDED ACTUATION OF
CONTROLLED EQUIPMENT.
RECOMMENDED PRACTICE IS TO DISCONNECT AND LOCK OUT
CONTROL EQUIPMENT FROM POWER SOURCES, AND
DISCHARGE STORED ENERGY IN CAPACITORS, IF PRESENT. IF IT
IS NECESSARY TO WORK IN THE VICINITY OF ENERGIZED
EQUIPMENT, ONLY QUALIFIED PERSONNEL SHOULD BE
PERMITTED TO PERFORM SUCH WORK , USING ALL APPLICABLE
SAFETY PRACTICES AND PROTECTIVE EQUIPMENT.
• Unless specifically designed for such service limit switches
SHOULD NOT BE submerged in or splashed with oils,
coolant or other liquids. CONSULT FACTORY.
• Limit switches MUST NOT BE used in locations where
temperature or atmospheric conditions are beyond those for
which they have been specifically designed.
• Power from different sources MUST NOT BE connected to
the contacts of one limit switch unless specifically designed
for such service.
• Limit switches MUST BE used within their contact ratings
and the appropriate limits switch bulletin for acceptable
environmental conditions in which the switch has been
designed to function properly.
• Limit switches SHOULD BE mounted rigidly and in readily
accessible locations, with suitable clearances to permit
easy service and replacement when necessary. Cover
plates SHOULD face the maintenance access point.
• Limit switches SHOULD BE placed in locations where
machining chips do not accumulate under normal operating
conditions to avoid chip interference with the lever
operation.
• Opposite polarities MUST NOT BE connected to the
contacts of one limit switch unless the limit switch is
specifically designed for such service.
Remove 4 top screws.
(Mechanism is spring-loaded.
Watch out for parts.)
Remove spring and plunger
assembly from head.
Note orientation of plunger
assembly*
Re-assemble.
IMPORTANT
Instructions for proper applications and uses of
COMPACT LIMIT SWITCHES
EXPERIENCE HAS SHOWN THAT THE MECHANICAL
AND ELECTRICAL OPERATING LIFE OF A LIMIT
SWITCH IS INFLUENCED TO A LARGE DEGREE BY
PROPER INSTALLATION AND APPLICATION
PROCEDURES. THIS PUBLICATION IS INTENDED TO
BE USED AS A GUIDE.
IMPORTANT: MAINTENANCE NOTE
LOW AND HIGH TEMPERATURE LIMIT SWITCHES ARE
MANUFACTURED USING SPECIAL MATERIALS AND
COMPONENTS NOT AVAILABLE AS MAINTENANCE KITS
FROM THE FACTORY. DISCARD DAMAGED OR WORN
LIMIT SWITCHES AND REPLACE WITH NEW SWITCHES
FROM THE FACTORY.
STEP 1
STEP 2
STEP 3
STEP 4
Wiring and Mounting:
* Rotating it clockwise 90° makes it a clockwise-only switch. Rotating it counter-clockwise makes it a counter-clockwise-only switch.
(Switch operates both directions when shipped).
Head Rotation Procedure