General-purpose Limit Switch
D4A-
@N
F-21
Limit
Switches
Easy-maintenance Block Mounting
Block mounting makes it possible to easily assemble or disassemble
the head, switch body, and receptacle of the D4A-
@
N by tightening or
loosening the attached screws.
Installation
■
Operation
Changing the Operating Direction
The head of the side rotary type can be converted in seconds to CW,
CCW, or both-way operation. Follow the procedures on the right
hand side for conversion (not applicable to the Maintained, Sequen-
tial Operating, Center Neutral Operating Switches).
Operating Part (Rear of Head)
Procedures
1.
Dismount the head by loosening the four screws that secure it.
2.
Turn over the head to set the desired operation (CW, CCW, or
both). The desired side can be selected by setting the mode
selector knob shown in the figure. This knob is factory set to the
“CW+CCW” (both-way operation) position.
3.
When set to the CW position, the head rotates in clockwise direc-
tion.
When set to the CCW position, the head rotates in counterclock-
wise direction.
In either case, be sure to accurately align the arrow mark to the
setting position.
Actuator
Head
Receptacle
Switch box
Operating position
arrow marks
