SMC Networks Reed Switch Solid State Switches - Manual (Page 21)

Auto Switch Internal Circuit
Diagnostic Output Operation
Dimensions
Auto switch model
0.5
3
5
13
56
90
D-F79F
Grommet
Lead wire length
(m)
ø3.4
Since the output signal can be
detected in an unsteady detecting
area, the difference of detecting
position can be confirmed by the
side of PLC (Programmable Logic
Controller).
The diagnostic signal is
output within unsteady
detecting area (where
indicator light is Red), and
the diagnostic output
becomes OFF when the
detecting position remains
within the optimum
operating position (where
indicator is Green). When
the detecting position is not
adjusted, the diagnostic
output becomes ON.
OUT (Normal output)
Black
DC ( + )
Brown
DC ( – )
Blue
Diagnosis OUT
(Diagnostic output)
Orange
D-F79F (With indicator light)
Auto switch model
Wiring
Output
Diagnostic output
Applicable load
Power voltage
Current consumption
Load voltage
Load current
Internal voltage drop
Current leakage
Indicator light
D-F79F
4-wire
NPN
Normal operation
IC circuit, Relay, PLC
5, 12, 24 VDC (4.5 to 28 VDC)
10 mA or less
28 VDC or less
50 mA or less at the total amount of normal output and diagnostic output
1.5 V or less (0.8 V or less at 5 mA)
100 µA or less at 24 VDC
Operating position······Red LED lights when ON.
Optimum operating position······Green LED lights when ON.
• Lead wire — Oil resistant vinyl heavy-duty cord, ø3.4, 0.2 mm 2 , 4 cores (Brown, Black, Orange, Blue), 0.5 m
Note 1) Regarding the common specifications of the solid state switches, refer to page 12-13-5.
Note 2) Regarding the lead wire length, refer to page 12-13-5.
Auto Switch Specifications
PLC: Abbreviation of Programmable Logic Controller
Weight
(g)
ø3.2 mounting hole
Indicator light
Most sensitive position
Indicator light
OUT
(Normal output)
Diagnosis OUT
(Diagnostic output)
OFF OFF
ON
Red Green Red Red
2-color Indication Type with Diagnostic Output
Solid State Switch: Rail Mounting Style
D-F79F
Main circuit
of switch
For details about certified products
conforming to international standards,
visit us at www.smcworld.com.
12-13-21
1st
MHZ
MHF
MHL
MHR
MHK
MHS
MHC
MHT
MHY
MHW
MRHQ
Misc.
D-
20-
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