SMC Networks D-F7NJL Series Installation & Maintenance Manual
Avoid incorrect wiring
I
f connections are reversed (power supply line +and power supply line –) ona 3-
w
ire type switch, the switchwill be protected by a protection circuit. However, if
t
he power supply line (+)is connected to the blue wire and the power supply line
(–) is connected to theblack wire, the switch will be damaged.
Do not cut lead wire between sensor and amplifier part.
C
ircuit of sensor and amplifierare adjusted integrally, if sensor partis replaced,
switch can not operate properly.
Operating environment
Do not use in an area where a magnetic field is generated.
Auto switches can malfunction ormagnets inside actuators can become
d
emagnetized.
Do not use in an environment where the auto switch will be
continually exposed to water.
Although switches satisfy IEC standardIP67 construction (JIS C 0920: watertight
c
onstruction), avoid using switches inapplications with continual exposure to
water splash or spray. Poorinsulation or swelling of the potting resin inside
s
witches may cause malfunction.
Do not use in an environment with oil or chemicals.
C
onsult SMC if auto switchesare to be used in an environment with coolant,
cleaning solvent, various oils orchemicals. If auto switches are usedunder
t
hese conditions for even ashort time, they may be adversely affected by
improper insulation, malfunction due toswelling of the potting resin, or
h
ardening of the lead wires.
Do not use in an environment with temperature cycles.
C
onsult SMC if switches areused where there are temperature cycles other
than normal air temperature changes,as there may be adverse effects inside
t
he switches.
Do not use in an area where surges are generated.
When there are units (solenoidtype lifter, high frequency induction furnace,motor,
etc.) which generate a largeamount of surge in the area around actuators with
s
olid state auto switches, thismay cause deterioration or damage to the switches.
Avoid sources of surge generationand crossed lines.
Mount / adjustment
Do not drop or bump.
Do not drop, bump orapply excessive impacts (1000m/s2or more for solid state
switches) while handling. Although thebody of the switch may notbe damaged,
the inside of the switchcould be damaged and cause amalfunction.
Do not carry a actuator by the auto switch lead wires.
Never carry an actuator byits lead wires. This may not only cause broken lead
wires, but it may causeinternal elements of the switch to be damaged by the
stress.
Mount switches using the proper tightening torque.
If a switch is tightenedbeyond the range of tightening torque, the mounting
screws, mounting brackets or switchmay be damaged.
On the other hand, tighteningbelow the range of tightening torquemay allow the
switch to slip out ofposition.
Mount a switch at the center of the operating range.
Adjust the mounting position ofan 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 thecatalog indicates the optimum position at
stroke end.) If mounted atthe 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 resultfrom wiring patterns which repeatedly apply
bending stress or stretching forceto the lead wires.
Confirm proper insulation of wiring.
Be certain that there isno faulty wiring insulation (contact with other circuits,
ground fault, improper insulation betweenterminals, etc.) Damage may occur
due to excess current flowinto a switch.
Do not wire with power lines or high voltage lines.
Wire separately from power linesor high voltage lines, avoiding parallelwiring or
wiring in the same conduitwith these lines. Control circuits containingauto
switches may malfunction due tonoise from these other lines.
Do not allow short circuit of loads.
All models of PNP outputtype switches do not have built-in short circuit
protection circuits.
Note that if a loadis short circuited, the switch will be instantly damaged
because of excess current flowinto the switch.
*Take special care to avoidreverse wiring of the brown power supply line and
the black output line on3-wire type switches.
Piston moving
direction
ON position
Piston moving
direction
OFF position
Hysteresis
Installation & Maintenance Manual
Auto Switch (
Solid State)
Series D-F7NJL
R
ead this manual before using this product.
For future reference, please keep this manual in a safe place.
This manual should be read in conjunction with the current catalogue.
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 of personnel and equipment the safety instructions in
this manual and the product catalogue must be observed, along with
other relevant safety practices.
Operator error could result in injury or
equipment damage.
Operator error could result in serious injury
or loss of life.
In extreme conditions, there is a possible
result of serious injury or loss of life.
Caution
Warning
Danger
:
:
:
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 hereare used in various operating
conditions,their compatibility for the specificpneumatic system must
be based on specifications orafter analysis and/or tests to meet your
specific requirements.
1.1.2.Only trainedpersonnelshould operate pneumatically operated
machinery andequipment.
Compressed air can be dangerousif an operator is unfamiliar withit
Assembly, handling or repair ofpneumatic systems should be
performed by trained and experiencedoperators.
1.1.3.Do not service machinery/equipment or attempt to remove
component until safety is confirmed.
1) Inspection and maintenance of machinery/equipmentshould onlybe
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 airand electrical supplies and exhaust all
residual compressed air in thesystem.
3) Before machinery/equipment is re-started, ensure all safetymeasures to
prevent sudden movement of actuators etc. (Supply air into thesystem
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.
2) Installations in conjunction with atomic energy, railway, air navigation,
vehicles, medical equipment, food and beverage, recreation equipment,
emergency stop circuits, press applications,or safetyequipment.
3) Equipment intended for usein potentially explosive atmospheres.
Applicationswhich havethe possibility of having negative effects on
people, property or animals.
Special safety analysis is required.
Design and selection
Confirm the specifications.
Read the specifications carefully anduse this product appropriately. The
p
roduct may be damaged ormalfunction if it is used outside the range of
s
pecifications for load current, voltage,temperature or impact.
Take precautions when multiple actuators are used close together.
W
hen multiple auto switch actuatorsare used in close proximity, magnetic
f
ield interference may cause theswitches to malfunction. Maintain a minimum
a
ctuator separation of 40mm.
Pay attention to the length of time that a switch is ON at an
intermediate stroke position.
W
hen an auto switch isplaced at an intermediate position ofthe stroke and a
load is driven at thetime the piston passes, the auto switch will operate, but if
t
he speed is too greatthe operating time will be shortened and the load may
n
ot operate properly. The maximumdetectable piston speed is:
Keep wiring as short as possible
A
lthough longer wiring does notaffect the function, please keep itto 100m or
shorter.
Do not use a load that generates surge voltage.
A
lthough a zener diode forsurge protection is connected at the output side of
a
solid state auto switch, damagemay still occur if the surge is applied
repeatedly. When a load suchas a relay or solenoid whichgenerates surge is
d
irectly driven, use a typeof switch with a built-in surge absorbing element.
Cautions for use in an interlock circuit
When an auto switch isused for an interlock signal requiring high reliability,
devise a double interlock systemto avoid trouble by providing amechanical
protection function, or by alsousing another switch (sensor) together with the
a
uto switch.
Also perform periodic maintenance andconfirm proper operation.
Ensure sufficient clearance for maintenance activities.
When designing an application, besure to allow sufficient clearance for
maintenance and inspections.
Avoid accumulation of iron waste or close contact with magnetic
substances.
When a large amount ofiron waste such as machining chips or spatter has
accumulated, or a magnetic substance(something attracted by a magnet) is
brought into close proximity withan auto switch actuator, it may cause auto
switches to malfunction due toa loss of the magnetic force inside the
actuator.
Maintenance
Perform the following maintenance periodically in order to prevent
possible danger due to unexpected auto switch malfunction.
1) Securely tighten switch mountingscrews.
If screws become loose orthe mounting position is dislocated, retighten
them after readjusting the mountingposition.
2) Confirm that there isno damage to lead wires.
To prevent faulty insulation, replaceswitches 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.
2. INSTALLATION AND OPERATING ENVIRONMENT
3.Model Indication Method
D-F7NJ
L
ead wire length
L 3m
Z 5m
Switch No.
D-#S-TFI88GB-A
4.INTENDED CONDITIONS OF USE
Impact resistance
Sensor : 1000m/s
2
Ambient temperature
Sensor : 0 to 150
Protection structure IEC60529 standard IP67
Wiring 3 wire
Output NPN
Application Relay, Sequence control
Power voltage 24VDC (20 to 26VDC)
Current consumption 25mA or less
Load voltage 28V DC or less
Load current 40mA or less
Internal voltage drop
Current leakage 100 A or less
Operating time 1ms or less
Indication light
(Amplifier)
Operating range Red LED
Switch model number D-F7NJL
Most sensitive range Green LED
0.8V or less
Amplifier : 300m/s
2
Amplifier : 0 to 60
Danger
Warning
Caution
Warning
Warning
A
utoswitch operating range [
mm]
L
oad operating time [
ms]
Warning
Piston moving
direction
Piston moving
ON position
OFF position
Hysteresis
Switch No.
L
ead wirelength
direction
6.How to mount / Mounting bracket
(Sensor)
Each actuator has a specified mounting bracket when
mounted to the auto switch. “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 of the magnet built-in
type, then prepare brackets that correspond to the actuator.
The application actuator : CDQ2 -XB14.
7.Basic wiring
5
.Names and Functions of Individual Parts
Indicator lamp
Heat resistant cord
Mounting hole
SMC
22
40
11
3.4
3.4
(64.5) 0.7
36.2
(4)
3000
21.6
8
15
4 7
3.8
3000(5000)
Indicator lamp
Heat resistant cord
Slide the auto switch mounting nut inserted into the mounting rail
and set it at the auto switch mounting position.
Fit the convex part of auto switch mounting arm into the concave
part of auto switch mounting rail. Then slide the switch over the nut.
(CDQ2 series:Fit the convex part of auto switch mounting arm
through the auto switch spacer into the concave part of auto switch
mounting rail.)
Push the auto switch mounting screw lightly into the mounting nut
through the hole of auto switch mounting arm.
After reconfirming detection position, tighten the mounting screw to
secure the auto switch. (Tightening torque of M3 screw should be
0.5 to 0.7N•m.)
Modification of the detecting position should be made referring to item
.
8.Exterior dimension
9.Check flow
W
hen detection failure occurs(stay ON/OFF), please check based on
the following flow chart.
D-#S-TFI88GB-A
A B C D B B A C
A
B
C
D
---
---
---
---
(Amplifier)
The Solid state switch amplifier unit should mounted on DIN rail.
H
ow to mount on DIN terminal
As described below, hook the bottom of the body on the DIN rail,
and then push and hold the unit down in direction of arrow.
For removal, release the unit from the DIN rail using a screw driver.
Remove
Mount
Indicator lamp
Mounting hole
Heat resistantcord
Switch mounting screw
Switchspacer
Switch
mounting
nut
Autoswitch
Remove
Mount
Switch
main
circuit
DC(+)
B
rown
OUT
Black
DC(-)
Blue
Power
supply
Load
HEATPROOF
AUTOSWITCH
AMPLIFIRE
MODEPOSITION
Indicator lamp
Heat resistant cord
Problem occurs
T
rouble
condition
Indicator
lamp lights
Wiring
(output) check
Stay ON (Sometimes OFF)
Stay OFF(Sometimes ON)
N
ormal
Normal
Abnormal
Stay OFF
Source voltage
o
r load voltage
Normal
Abnormal
Stay OFF
Normal
Normal
Abnormal
R
eplace the Switch
Indicator
lamp lights
S
tay ON
Switch output failure (replace)
Check and correct wiring
Switch failure
Replace actuator. Detectable magnet field not adequate (No magnet)
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
Mark
J
K
L
M
.
.
.
Year
2005
2006
2007
2008
.
.
.
Year
Month
Manufacturer’s batch marking
AUSTRIA (43) 2262 62280 NETHERLANDS (31) 20 531 8888
BELGIUM (32) 3 355 1464 NORWAY (47) 6712 90 20
CZECH REP.
(420) 541 424 611
POLAND (48)22 211 9600
DENMARK (45) 7025 2900 PORTUGAL (351) 21 4711880
FINLAND (358) 207 513513 SLOVAKIA (421) 2444 56725
FRANCE (33) 1 6476 1000 SLOVENIA (386) 73 885412
GERMANY (49) 61034020 SPAIN (34) 945 184 100
GREECE (30) 210 271 7265 SWEDEN (46) 8 603 1200
HUNGARY (36) 23 511 390 SWITZERLAND (41) 52 396 3131
IRELAND (353) 1 403 9000 UNITED KINGDOM (44) 1908 563888
ITALY (39) 02 92711
URL http://www.smcworld.com (Global) http://www.smceu.com (Europe)
Specifications are subject to change without prior notice from the manufacturer.
The descriptions of products in this document may be used by other companies.
© SMC Corporation All Rights Reserved.
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