SMC Networks D-F8P, D-F8N, D-F8B User Manual
D-#S-TFI91GB
Installation & Maintenance Manual
Auto Switch (Solid State)
Series D-F8N/D-F8P/D-F8B
Safety Instructions
This manual contains essential information for the protection of users and
others from possible injury and property damage.
To ensure correct handling, please follow the instructions.
Please check that you fully understand the meaning of the following mes-
sages (signs) before going on to read the text, and always follow the
instructions.
Please read the Installation & Maintenance Manual of related apparatus and
understand it before operating the unit.
Read this manual and follow its instructions.
Titles such as DANGER, WARNING, CAUTION and NOTE, will be followed by important safety information which must be carefully followed.
IMPORTANT MESSAGES
Indicates a potentially hazardous situation
which
could result in death or serious injury if you do not
follow instructions.
Indicates a potentially hazardous situation which if
not avoided, may result in minor injury or moderate
injury.
Safety Instructions (
continue
)
Model Indication Method
Specification
EMC Directive 89/336/EEC
EN61000-6-2:2001 Electromagnetic Compatibility (EMC).
Generic standards - lmmunity for industrial environments.
EN55011 A1+A2:2001 Limits and methods of measurement of radio disturbance
characteristics of industrial, scientific and medical
radio-frequency equipment and light industrial environments.
In extreme conditions, there is a possible result of
serious injury or loss of life.
1.1 General recommendation
These safety instructions are intended to prevent a hazardous situation
and/or equipment damage.
These instructions indicate the level of potential hazard by label of
"Caution", "Warning" or "Danger".
To ensure safety, be sure to observe ISO4414 (Note1), JIS B 8370
(Note2) and other safety practices.
(Note 1):ISO 4414:Pneumatic fluid power - Recommendations for the application
of equipment to transmission and control systems.
(Note 2):JIS B 8370:Pneumatic system axiom.
1.1.1.
The compatibility of pneumatic equipment is the responsibility
of the person who designs the pneumatic system or decides
its specifications.
Since the products specified here are used in various operating
conditions,their compatibility for the specific pneumatic system must
be based on specifications or after analysis and/or tests to meet your
specific requirements.
1.1.2.
Only trained personnel should operate pneumatically operated
machinery and equipment.
Compressed air can be dangerous if an operator is unfamiliar with it
Assembly, handling or repair of pneumatic systems should be
performed by trained and experienced operators.
1.1.3.
Do not service machinery/equipment or attempt to remove
component until safety is confirmed.
1) Inspection and maintenance of machinery/equipment should only be
performed after confirmation of safe locked-out control positions.
2) When equipment is to be removed, confirm the safety process as
mentioned above. Switch off air and electrical supplies and exhaust all
residual compressed air in the system.
3) Before machinery/equipment is re-started, ensure all safety measures to
prevent sudden movement of actuators etc. (Supply air into the system
gradually to create backpressure, i.e. incorporate a soft-start valve).
1.1.4.
Contact SMC if the product is to be used in any of the following
conditions:
1) Conditions and environments beyond the given specifications, or if
product is used outdoors.
Design and selection
Confirm the specifications.
Read the specifications carefully and use this product appropriately. The
product may be damaged or malfunction if it is used outside the range of
specifications for load current, voltage, temperature or impact.
Take precautions when multiple actuators are used close together.
When multiple auto switch actuators are used in close proximity, magnetic field interference may cause the switches to malfunction. Maintain
a minimum actuator separation of 40mm.
Pay attention to the length of time that a switch is ON at an intermediate stroke position.
When an auto switch is placed at an intermediate position of the stroke and
a load is driven at the time the piston passes, the auto switch will operate,
but if the speed is too great the operating time will be shortened and the
load may not operate properly. The maximum detectable piston speed is:
Keep wiring as short as possible
Although longer wiring does not affect the function, please keep it to
100m or shorter
Do not use a load that generates surge voltage.
Although a zener diode for surge protection is connected at the output side
of a solid state auto switch, damage may still occur if the surge is applied
repeatedly. When a load such as a relay or solenoid which generates surge is
directly driven, use a type of switch with a built-in surge absorbing element.
Cautions for use in an interlock circuit
When an auto switch is used for an interlock signal requiring high reliability,
devise a double interlock system to avoid trouble by providing a mechanical protection function, or by also using another switch (sensor) together
with the auto switch. Also perform periodic maintenance and confirm proper operation.
Mount / adjustment
Do not drop or bump.
Do not drop, bump or apply excessive impacts (1000m/s2or more for solid
state switches) while handling. Although the body of the switch may not be
damaged, the inside of the switch could be damaged and cause a malfunction.
Do not carry an actuator by the auto switch lead wires.
Never carry an actuator by its lead wires. This may not only cause broken
lead wires, but it may cause internal elements of the switch to be damaged
by the stress.
Mount switches using the proper tightening torque.
If a switch is tightened beyond the range of tightening torque, the mounting
screws, mounting brackets or switch may be damaged.
On the other hand, tightening below the range of tightening torque may allow
the switch to slip out of position.
Mount a switch at the center of the operating range.
Adjust the mounting position of an auto switch so that the piston stops at
the center of the operating range (the range in which a switch is ON). (The
mounting position shown in the catalog indicates the optimum position at
stroke end.) If mounted at the end of the operating range (around the borderline of ON and OFF), operation may be unstable.
Wiring
Avoid repeatedly bending or stretching lead wires.
Broken lead wires can result from wiring patterns which repeatedly apply
bending stress or stretching force to the lead wires.
Confirm proper insulation of wiring.
Be certain that there is no faulty wiring insulation (contact with other circuits, ground fault, improper insulation between terminals, etc.) Damage
may occur due to excess current flow into a switch.
Do not wire with power lines or high voltage lines.
Wire separately from power lines or high voltage lines, avoiding parallel wiring
or wiring in the same conduit with these lines. Control circuits containing auto
switches may malfunction due to noise from these other lines.
Do not allow short circuit of loads.
All models of switches do not have built-in short circuit protection circuits.
Note that if a load is short circuited, the switch will be instantly damaged
because of excess current flow into the switch.
Avoid incorrect wiring
I
f wiring is incorrect, the switches will be damaged.
Operating environment
Do not use in an area where a magnetic field is generated.
Auto switches can malfunction or magnets inside actuators can become
demagnetized.
Do not use in an environment where the auto switch will be continually exposed to water.
Although switches satisfy IEC standard IP67 construction (JIS C 0920: watertight construction), avoid using switches in applications with continual exposure to water splash or spray. Poor insulation or swelling of the potting resin
inside switches may cause malfunction.
Do not use in an environment with oil or chemicals.
Consult SMC if auto switches are to be used in an environment with
coolant, cleaning solvent, various oils or chemicals. If auto switches are
used under these conditions for even a short time, they may be adversely
affected by improper insulation, malfunction due to swelling of the potting
resin, or hardening of the lead wires.
Do not use in an environment with temperature cycles.
Consult SMC if switches are used where there are temperature cycles
other than normal air temperature changes, as there may be adverse
effects inside the switches.
Do not use in an area where surges are generated.
When there are units (solenoid type lifter, high frequency induction furnace,
motor, etc.) which generate a large amount of surge in the area around actuators with solid state auto switches, this may cause deterioration or damage
to the switches. Avoid sources of surge generation and crossed lines.
Avoid accumulation of iron waste or close contact with magnetic
substances.
When a large amount of iron waste such as machining chips or spatter has
accumulated, or a magnetic substance (something attracted by a magnet) is
brought into close proximity with an auto switch actuator, it may cause auto
switches to malfunction due to a loss of the magnetic force inside the
actuator.
Piston moving
direction
ON position
Piston moving
direction
OFF position
Hysteresis
Maintenance
Perform the following maintenance periodically in order to prevent
possible danger due to unexpected auto switch malfunction.
1) Securely tighten switch mounting screws.
If screws become loose or the mounting position is dislocated,
retighten them after readjusting the mounting position.
2) Confirm that there is no damage to lead wires.
To prevent faulty insulation, replace switches or repair lead wires,
etc., if damage is discovered.
Others
For durability against water, elasticity, application at welding
site, please consult us.
If ON and OFF position (hysteresis) cause problems, please
consult us.
S 0.5m
M 1m
Connector pin assignment
Pre-wired connector
A M8-3pin connector
B M8-4pin connector
D M12-4pin connector
D-F8 PC
Lead wire length
N 3wire NPN output
P 3wire PNP output
B 2wire
Switch No.
Output
N 3wire NPN output
P 3wire PNP output
B 2wire
D-F8
Lead wire length
No number 0.5m
L 3m
Z 5m
Switch No.
Output
2) Installations in conjunction with atomic energy, railway, air navigation,
vehicles, medical equipment, food and beverage, recreation equipment,
emergency stop circuits, press applications, or safety equipment.
3) Equipment intended for use in potentially explosive atmospheres.
Applications which have the possibility of having negative effects on
people, property or animals.
Special safety analysis is required.
Ensure sufficient clearance for maintenance activities.
When designing an application, be sure to allow sufficient clearance for
maintenance and inspections.
Safety Instructions (
continue
)
Impact resistance 1000m/s
2
Insulation resistance 50M or more at 500V DC mega
Withstand voltage 1000V AC for 1 minute (lead wire, between cases)
Ambient temperature -10 to 60
Protection structure IEC529 standard IP67, JISC0920
Switch model number D-F8N D-F8P D-F8B
Wiring 3 wire 2 wire
Output NPN PNP
-
Application IC circuit/Relay/PLC
24V DC Relay/PLC
Power voltage 5/12/24V DC (4.5 to 28V DC)
-
Current consumption 10mA or less
-
Load voltage 28V DC or less
-
24V DC(10 to 28V DC)
Load current 40mA or less 2.5 to 40mA
Internal voltage drop 1.5V or less 4V or less
Current leakage 100 A or less at 24V DC 0.8mA or less
Operating time 1ms or less
Indication light ON: Red light emitting diode
Electrical entry system Grommet
Lead wire
Oilproof heavy-duty vinyl cord
2.7, 0.18mm2, 2 wire (D-F8B),
2.7, 0.15mm
2
, 3 wire (D-F8N,D-F8P)
80mA or less
0.8V or less
D-#S-TFI91GB
Specifications are subject to change without prior notice and any obligation on the part
of the manufacturer.
The descriptions of products shown in this document may be used by the other companies as their trademarks.
© 2006 SMC Corporation All Rights Reserved
When you inquire about the product, please contact to followings.
URLhttp://www.smcworld.com
Phone
AUSTRIA / (43) 2262-62 280 ITALY / (39) 02-92711
BELGIUM / (32) 3-355 1464 NETHERLANDS / (31) 20-531 8888
CZECH REP. / (420) 5-414 24611 NORWAY / (47) 67 12 90 20
DENMARK / (45) 70 25 29 00 POLAND / (48) 22-548 50 85
FINLAND / (358) 9-859 580 PORTUGAL / (351) 2 610 89 22
FRANCE / (33) 1-64 76 1000 SPAIN / (34) 945-18 4100
GERMANY / (49) 6103 4020 SWEDEN / (46) 8-603 0700
GREECE / (30) 1- 342 6076 SWITZERLAND / (41) 52-396 3131
HUNGARY / (36) 1-371 1343 TURKEY / (90) 212 221 1512
IRELAND / (353) 1-403 9000 UNITED KINGDOM / (44) 1908-56 3888
Names and Functions of Individual Parts
Installation
Internal Circuit and Wiring Other Functions
Outline with Dimensions (in mm)
Mounting screw
(M2.5
4L)
Indicator light
Vinyl sheath cable
SMC
D-F8B
D-F8N / F8P / F8B
Actuator
Mounting screw
Auto switch
6.How to mount / Mounting bracket
Each actuator has a specified mounting bracket when mounted to the autoswitch.
“How to mount/Mount bracket” depends on actuator type and
tube I.D. Please refer to the actuator catalogue.
When an auto switch is mounted for the first time, please
ensure the actuator is a magnet built-in type, then ensure
brackets correspond to the actuator.
M2.5 mount screw tightening torque shall be 0.1 to 0.2N•m
•Setting the detecting position
Set the actuator at the stroke end. Set the switch in the area to where
the auto switch red lamp lights. (Detecting actuator end)
Based on A and B dimensions in the actuator catalogue, set the switch.
Connection with PLC (sequence controller)
2
M12-4pin connectorM8-4pin connectorM8-3pin connector
43
14
3
1
43
21
D-F8N
Trouble occurs
Trouble
condition
Stay OFF(sometimes ON)
Indicator light
Normal
2wires / 3wires
3wires
Wiring
(output)check
Normal Abnormal
2wires
Load spec.check(1)
Stay OFF
Source voltage
or load voltage
Replace the Switch
Stay ON(Sometimes OFF)
Indicator light
2wires / 3wires
ABACDEBB AAFD
Load spec. check(1) ----- ON voltage > Load voltage-Internal voltage drop
Load spec. check(2) ----- OFF current > Leak current
A
B
C
D
E
F
--- Switch output parts failure(replace)
--- Check wiring and correct fault
--- Replace switch 2 wires --> 3 wires
--- Switch failure
--- Replace cylinder. Detectable magnet field in adequate (No magnet)
--- Replace PLC input board or replace switch 2 wires --> 3 wires
Normal Abnormal
Normal Abnormal
Normal
Abnormal
Load spec.check(2)
3wires
2wires
Normal Abnormal
Normal
Stay OFF
Stay ON
When detection failure occur(stay ON/OFF), please check based on the next flow.
Mark
K
L
M
N
O
P
Q
Year
2006
2007
2008
2009
2010
2011
2012
Mark
O
P
Q
R
S
T
U
V
W
X
Y
Z
Month
January
February
March
April
May
June
July
August
September
October
November
December
Manufacture’s batch marking
Year
Month
44
14
Connector size M12
Connector size M8
10
31.4
D-F8 PC
A
B
D-F8 DPC
Exterior dimension of Pre-wired connector
D-F8P
D-F8B
D-F8N
Switch
main
circuit
D-F8B(Sink input mode) D-F8B(Source input mode)
Switch
main
circuit
Brown
Black
Blue
Brown
Blue
Load
Load
Power
suppy
Power
suppy
D-F8P
Switch
main
circuit
Switch
main
circuit
Brown
Black
Blue
Brown
Blue
Load
Load
Power
suppy
Power
suppy
3 500(3000)(5000)
4
3.1 10.9
2.7
3 500(3000)(5000)
4
3.1 10.9
2.8
2.8
Mountin gscrew M2.5 4
Slotted screw
4.3
Indicator lamp
2
10
Manufacturing code
D-F8N
SMC
8
Most sensitive position
Mountin gscrew M2.5 4
Slotted screw
4.3
Indicator lamp
2
10
Manufacturing code
D-F8P
SMC
Most sensitive position
8
4.6
4.6
2.7
2.8
3 500(3000)(5000)
4
3.1 10.9
Mountin gscrew M2.5 4
Slotted screw
4.3
Indicator lamp
2
10
8 Most sensitive position
4.6
Manufacturing code
D-F8B
SMC
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