G-257
D4B-
@
N
D4
B-
@
N
CW, CCW or Two-way Operation
The head of Side Rotary Switches can be converted in seconds to
CW, CCW, or two-way operation. The conversion procedure follows.
Procedure
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 operation can be selected by setting the mode
selector knob shown in the figure. This knob is factory set to the
“CW + CCW” (two-way operation) position.
3.
Set the CW hole on the head at the operation position mark
(arrow) for clockwise operation or set the CCW hole right at the
arrow for counterclockwise operation. In either case, be sure to
set the hole position exactly at the arrow point.
Wiring
Do not connect the bare lead wires directly to the terminals but be
sure to connect each of them by using an insulation tube and M3.5
round crimp terminals and tighten each terminal screw within the
specified torque range.
The proper lead wire is 20 to 14 AWG (0.5 to 2.5 mm
2
) in size.
Make sure that all crimp terminals come into contact with the casing
or cover as shown below, otherwise the cover may not be mounted
properly or the D4B-
#
N may malfunction.
Connector
Make sure that each connector is tightened within the specified
torque range. The casing may be damaged if the connector is tight-
ened excessively.
If the 1/2-14NPT is used, cover the cable and conduit end with seal-
ing tape in order to ensure IP67.
The Pg13.5 connector must be Nippon Flex’s ABS-08Pg13.5 or
ABS-12 Pg13.5.
Use OMRON’s SC-series connector which is suited to the cable in
diameter.
Properly attach the provided conduit cap to the unused conduit open-
ing and securely tighten the cap screw within the specified torque
when wiring the D4B-
#
N.
Others
The load for the actuator (roller) of the Switch must be imposed on
the actuator in the horizontal direction, otherwise the actuator or the
rotating axis may be deformed or damaged.
When using a long lever model like the D4B-
##
16N or
D4B-
##
17N, the Switch may telegraph. To avoid telegraphing, take
the following precautions.
1.
Set the lever to operate in one direction. For details, see page G-
257,
CW, CCW or Two-way Operation
.
2.
Modify the rear end of the dog to an angle of 15° to 30° as shown
below or to a secondary-degree curve.
3.
Modify the circuit so as not to detect the wrong operating signals.
Head cover (Push and rotate)
Operating posi-
tion mark (arrow)
D dia.
dz dia.
dz dia.: 3.7
D dia.: 4.5
B: 7.0
L: 20.2
F: 7.7
l: 9.0
(mm)
Casing
Cover
Terminal screw
Crimp terminal
Terminal screw
Casing
Terminal screw
Cover
Crimp terminal
Correct
Correct
Incorrect
Incorrect
Crimp
terminal
Crimp terminal
Crimp terminal
Correct
Incorrect
Dog
Dog
Top View
Correct
Incorrect
θ
θ
θ
≥
30
°
15
°
≤
θ
≤
30
°
F502-EN2-04.book Seite 257 Dienstag, 26. Juli 2005 5:48 17
