Datasheet

Prior to Use
Auto Switch Connection and Example
Basic Wiring
Solid state 3-wire, NPN
• Sink input specifications
3-wire, NPN
• 3-wire
2-wire (Solid state)
• Source input specifications
3-wire, PNP
OR connection for NPN output
2-wire with 2-switch AND connection 2-wire with 2-switch OR connection
2-wire 2-wire
Solid state 3-wire, PNP
Connect according to the applicable PLC
input specifications, as the connection
method will vary depending on the PLC
input specifications.
Load voltage at ON = Power supply voltage – Residual voltage x 2 pcs.
= 24 V – 4 V x 2 pcs.
= 16 V
Load voltage at OFF = Leakage current x 2 pcs. x Load impedance
= 1 mA x 2 pcs. x 3 k Ω
= 6 V
(Power supply for switch and load are separate.)
Auto switch 1
Auto switch 2
Load
Brown
Black
Blue
Brown
Black
Blue
Auto switch 1
Brown
Auto switch 2
Black
Blue
Relay
Relay
Brown
Black
Blue
Load
Relay
contact
Auto switch 1
Auto switch 2
Brown
Blue
Brown
Blue
Load
Auto switch 1
Auto switch 2
Brown
Blue
Brown
Blue
Load
Main
circuit
of switch
Brown
Black
Blue
Load
Brown
Black
Blue
Main
circuit
of switch
Load
Main
circuit
of switch
Brown
Black
Blue
Load
Main
circuit
of switch
Brown
Blue
Load
Brown
Blue
Main
circuit
of switch
Load
Auto switch
Input
Black
COM
Brown
Blue
Auto switch
Input
Blue
COM
Brown
Auto switch
Input
Black
PLC internal circuit
COM
Brown
Blue
PLC internal circuit
PLC internal circuit
PLC internal circuit
Auto switch
Input
Blue
COM
Brown
Example of AND (Series) and OR (Parallel) Connection
Example of Connection with PLC (Programmable Logic Controller)
2-wire (Reed)
Indicator
protection
circuit,
etc.
Brown
Blue
Load
Indicator
protection
circuit,
etc.
Brown
Blue
Load
AND connection for NPN output
(Using relays)
Auto switch 1
Brown
Auto switch 2
Black
Blue
Load
Brown
Black
Blue
AND connection for NPN output
(Performed with auto switches only)
• 2-wire
When two auto switches
are connected in series,
malfunction may occur
because the load voltage
will decrease in the ON
state.
The indicator lights will
light up when both of the
auto switches are in the
ON state.
(Solid state)
When two auto switches
are connected in parallel,
malfunction may occur
because the load voltage
will increase in the OFF
state.
(Reed)
Because there is no
leakage current, the load
voltage will not increase
in the OFF state.
However, depending on
the number of auto
switches in the ON state,
the indicator lights may
sometimes grow dim or
not light up, due to the
dispersion and reduction
of the current flowing to
the auto switches.
Example: Power supply voltage 24 VDC
Auto switch internal voltage drop 4 V
Example: Load impedance 3 kΩ
Auto switch leakage current 1 mA
The indicator lights will light up when both
of the auto switches are in the ON state.
Standard
Large Bore
Size
Long Stroke
Non-rotating
Rod
Axial Piping
Anti-lateral
Load
With End Lock
Water
Resistant
Auto SwitchMade to Order
With Auto
Switch
200