SMC Networks D-M9K User manual

No.D-※S-OMG0006-C
PRODUCT NAME
Trimmer Auto Switch
MODEL / Series / Product Number
D-M9K/D-F7K/D-Y7K
D-RNK/D-RPK

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No.D-※S-OMG0006-C
Table of Contents
Safety Instructions 2
Model Indication and How to Order 9
Summary of Product parts 10
Definition and terminology 12
Mounting and Installation 13
Wiring 13
Internal circuit 15
Offset adjustment 17
Installation 18
Setting 19
Maintenance 32
Troubleshooting 33
Specification 36
Specifications 36
Applicable actuator and operation range 37
Dimensions 39

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No.D-※S-OMG0006-C
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions indicate the level of potential hazard with the labelsof "Caution", "Warning" or "Danger".
They are all important notes for safety and must be followed in addition to International Standards
(ISO/IEC)*1), and other safety regulations.
*1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.
ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery -- Electrical equipment of machines. (Part 1: General requirements)
ISO 10218: Manipulating industrial robots -Safety.
etc.
Caution
Caution indicates a hazard with a low level of risk which, if not avoided, could
result in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk which, if not avoided,
could result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if not avoided, will
result in death or serious injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the
equipment or decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications
based on necessary analysis and test results.
The expected performance and safety assurance of the equipment will be the responsibility of the
person who has determined its compatibility with the product.
This person should also continuously review all specifications of the product referring to its latest catalog
information, with a view to giving due consideration to any possibility of equipment failure when
configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment including our products must be
performed by an operator who is appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is
confirmed.
1. The inspection and maintenance of machinery/equipment should only be performed after measures to
prevent falling or runaway of the driven objects have been confirmed.
2. When the product is to be removed, confirm that the safety measures as mentioned above are
implemented and the power from any appropriate source is cut, and read and understand the specific
product precautions of all relevant products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the
product is to be used in any of the following conditions.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place
exposed to direct sunlight.
2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,
vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or
other applications unsuitable for the standard specifications described in the product catalog.
3. An application which could have negative effects on people, property, or animals requiring special
safety analysis.
4. Use in an interlock circuit, which requires the provision of double interlock for possible failure by using
a mechanical protective function, and periodical checks to confirm proper operation.

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No.D-※S-OMG0006-C
Safety Instructions
Caution
1.The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange
specifications or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/Compliance Requirements
The product used is subject to the following "Limited warranty and Disclaimer" and "Compliance
Requirements".
Read and accept them before using the product.
Limited warranty and Disclaimer
1. The warranty period of the product is 1 year in service or 1.5 years after the product is
delivered, whichever is first.2)
Also, the product may have specified durability, running distance or replacement parts.
Please consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our
responsibility, a replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other
damage incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and
disclaimers noted in the specified catalog for the particular products.
2) Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the
vacuum pad or failure due to the deterioration of rubber material are not covered by the
limited warranty.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of
mass destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by
the relevant security laws and regulation of the countries involved in the transaction. Prior
to the shipment of a SMC product to another country, assure that all local rules governing
that export are known and followed.

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No.D-※S-OMG0006-C
Operator
This operation manual is intended for those who have knowledge of machinery using pneumatic
equipment, and have sufficient knowledge of assembly, operation and maintenance of such
equipment. Only those persons are allowed to perform assembly, operation and maintenance.
Read and understand this operation manual carefully before assembling, operating or providing
maintenance to the product.
■Precautions
Warning
■Do not disassemble, modify (including changing the printed circuit board) or repair.
An injury or failure can result.
■Do not operate the product outside of the specifications.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
■Do not operate in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
This product is not designed to be explosion proof.
■If using the product in an interlocking circuit:
Provide a double interlocking system, for example a mechanical system.
Check the product regularly for proper operation.
Otherwise malfunction can result, causing an accident.
■The following instructions must be followed during maintenance:
Turn OFF the power supply.
Stop the air supply, exhaust the residual pressure and verify that the air is released before performing maintenance.
Otherwise an injury can result.

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No.D-※S-OMG0006-C
Caution
■Do not touch terminals and connectors while the power is ON.
Otherwise electric shock, malfunction or damage to the product can result.
■After completing maintenance, perform appropriate functional checks.
Stop operation if the equipment does not function correctly.
Safety cannot be assured in the case of unexpected malfunction.
Perform periodic maintenance checks as follows.
1) Securely tighten the product mounting screws.
If the screws have become loose and the required mounting position has been lost, re-adjust the product to the
correct mounting position and re-tighten the screws.
2) Check that there is no damage to the cable.
If damage to the cable is found, replace the product, or repair the cable, to avoid faulty insulation.
3) Check the detecting position setting.
Confirm that the product ON/OFF position is at the centre of the operating range (green light range).
If the product operates with a red light ON at the ON/OFF position, the mounting position is not correct. Re-adjust
the product to the optimum position at the centre of the operating range.
Some actuator and cylinder series have their own setting methods. In such cases, follow the instructions given.
■Check the wiring.
Incorrect wiring or short circuit of load may damage the product.

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No.D-※S-OMG0006-C
■NOTE
○Follow the instructions given below when designing, selecting and handling the product.
"Cylinder" or "Actuator" indicates a cylinder, air gripper, rotary actuator, electrical actuator or
cylinder, etc.
●Design and Selection
Product specifications
Pay attention to the length of time the product will operate at an intermediate stroke position.
When a product is placed at an intermediate stroke position, and a load is driven during the time when the piston
passes, the product will operate, but if the piston speed is too great, the operating time will be shortened, and the
load may not operate correctly.
The maximum piston speed is:
V [mm/s] =
Operating range of product [mm]
x 1000
Operating time of load [ms]
Take precautions when multiple actuators are used close together.
When using two or more actuators with auto switches in close proximity to each other, maintain a minimum
separation distance of at least 40 mm. (If the separation distance is specified for the actuator series, then use that
value). The products may malfunction due to magnetic field interference. Use of a magnetic screen plate (MU-S025)
or commercially available magnetic screening tape can reduce the interference of magnetic fields.
Provide sufficient space for maintenance.
When designing an application, allow sufficient clearance for maintenance and inspection.
Never mount the actuator with auto switch in a location that will be used as a footrest.
The product may be damaged if excessive force is applied by stepping or climbing onto it.
Design the circuit to prevent reverse current during open circuit conditions or when the product is forced
to operate for functional checks.
Reverse current can cause product damage or malfunction.
Limitations of the detection position
There will be mounting positions or surfaces where the product cannot be mounted due to physical interference (e.g.
rear side of the foot bracket), depending on the mounting conditions of the actuator. Select a product after confirming
that the product mounting position does not interfere with the mounting bracket (e.g. trunnion, reinforcement ring).
Wiring should be kept as short as possible.
Do not use a cable longer than 100 m. For long cable lengths, we recommend a ferrite core should be attached to
both ends of the cable, to reduce noise. A contact protection box (used for reed type auto switches) is not necessary
for solid state auto switches, because of the type of product construction.
For products, the sensor cable length should be 3 m or less.
If the sensor cable length is longer than 3 m, the product will not be CE compliant.
Do not use a load which generates a surge voltage.
When a load which generates a surge voltage is to be directly driven, operate such as a relay or solenoid, use a
product with built-in surge protection.
Pay attention to the internal voltage drop of the product.
In general, the internal voltage drop will be greater with a 2-lead wire solid state auto switch than with a reed type
auto switch. When products are connected in series, the voltage drop will be "n" times larger when "n" products are
connected. Even though a product may operate normally, the load may not operate. Note that a 12 VDC relay is not
applicable.
The product output will be unstable for 50 ms after power is supplied.
During the time after supplying power, the input device (e.g. PLC, relay) may consider the ON position as OFF
output or the OFF position as ON output. Please set up the application to consider the signals will be invalid within
50 ms after power is supplied.
Perform a similar setting when using the SMC AHC system (Auto Hand Changing system) MAseries.

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No.D-※S-OMG0006-C
●Product handling
Installation
Do not drop or apply impact.
The product may be damaged or malfunction if it is dropped, bumped or applied with excessive impact (the sensor:
980 m/s2, the amplifier: 98 m/s2).
Observe the required tightening torque for mounting a product.
If a product is tightened beyond the specified tightening torque, the product, mounting screws, or mounting bracket
may be damaged.
Tightening below the specified tightening torque will allow the product to move out of position.
Use only the screws installed in the product body for mounting the product.
If other screws are used, the product may be damaged.
Set the product based on the instructions for the cylinder or actuator.
Mounting the product close to the edge of its operating range (close to the border of ON/OFF operation) may cause
unstable operation. Some actuator and cylinder series have their own setting methods. In such cases, follow the
instructions given.
For products with 2-colour display, the operation may be unstable due to the installation environment and the
effects of disturbance, even if the product is mounted in the correct operating range (green light range). (e.g. close
proximity of actuators with built-in magnet, magnetic substances, external magnetic fields, temperature changes, or
other fluctuating magnetic forces).
Check and adjust the actual product operation during installation.
The product may not operate in the correct actuator mounting position due to the installation environment.
Also check and adjust the product operation when used in intermediate stroke positions, according to the operating
environment.
Ensure that the FG terminal is connected to ground when using a commercially available switch-mode
power supply.
Wiring
Do not pull hard on the cable. In particular, do not carry an actuator by the product cable.
This may cause a broken cable or damage to the product internal elements.
Check the insulation of the wiring.
Check that there is no faulty wiring insulation (short circuits, faulty ground connections, improper insulation between
terminals, etc.), as this may damage the product due to over current.
Do not route the product wiring in the same place as power cables or high voltage cables.
Otherwise product malfunction may result due to noise and inrush current.
Avoid repeatedly bending or stretching the cable.
Wiring with repetitive bending stress or tensile stress can cause broken cable or peel of a sheath. If the cable can
move, fix it near the body of the product.
Turn the power ON after connecting a load.
Other wise it can cause excess current causing instantaneous breakage of the product.
Avoid incorrect wiring
If connections are reversed (power supply wire + and -), the product will be protected by a protection circuit.
However, if the blue wire is connected to the power supply (+) and the black wire is connected to the power supply (-),
the product will be damaged.

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No.D-※S-OMG0006-C
Environment
Do not use in a location where magnetic fields are generated.
Products will malfunction or the magnets inside actuators will become demagnetized.
Do not use in an environment where the product will be continually exposed to water.
Although products satisfy the IEC standard IP67 construction, do not use in applications continually exposed to
water splashes or spray. Otherwise, insulation failure or malfunction may result.
Do not use in an environment where oil or chemical splashes can occur.
If products are used in an environment with coolants, cleaning solvents, oils or chemicals for even a short time, they
may be adversely affected by insulation failure, malfunction due to swelling of the potting resin, or hardening of the
cable.
Do not use in an environment where there are cyclic temperature changes.
Temperature cycles other than normal temperature changes can adversely affect the product internally.
Avoid accumulation of iron debris 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 the actuator, it may cause the product to
malfunction due to a weakening of the magnetic force inside the actuator.
Contact SMC for information regarding product water resistance, elasticity of cables, applications in
welding sites, etc.
Do not use in direct sunlight.
Do not mount the product in locations where it is exposed to radiant heat.
The product is CE marked, but not immune to lightning strikes. Take measures against lightning strikes in
the system.
Do not use in a location where surges are generated.
When there are units (solenoid lifter, high frequency induction furnace, motor, etc.) which generate a large amount of
surge in the area around the actuator with solid state auto switches, this may cause damage to the product internal
circuit
Do not install this product in a place subject to vibration and impact. (980 m/s2 or less for the sensor unit,
98 m/s2or less for the amplifier unit)
The internal parts can be damaged leading to malfunction even if the product body is not damaged.
Take appropriate measure to prevent freezing when the operating temperature is 5 oC or less.
Maintenance
Do not use solvents such as benzene, thinner, alcohol etc. to clean the product.
This may damage the surface of the body or erase the markings on the body.
For heavy stains, use a cloth soaked with diluted neutral detergent and fully squeezed, then wipe up the stains again
with a dry cloth.

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No.D-※S-OMG0006-C
Model Indication and How to Order
○Sensor unit
: One sensor connector (e-con) is included in each package.
: One sensor connector (e-con) is included in each package.
○Amplifier unit
○Accessories (Option)
Product number
Contents
Remarks
ZS-28-C-1
Sensor Connector (e-con)
1 pc.
D-MS-A
Mounting screw (M2.5 x 4 L, Steel (Black zinc chromate))
1 pc.
D-MS-AP
Mounting screws (M2.5 x 4 L, Steel (Black zinc chromate))
10 pcs.
D-MS-B
Mounting screw (M2.5 x 4 L, SUS)
1 pc.
D-MS-BP
Mounting screws (M2.5 x 4 L, SUS)
10 pcs.
ISA-2-1
DIN rail (Width 35 mm x Length 105 mm)
1 pc.
ISA-2-2
DIN rail (Width 35 mm x Length 140 mm)
1 pc.
ISA-2-3
DIN rail (Width 35 mm x Length 175 mm)
1 pc.
ISA-2-4
DIN rail (Width 35 mm x Length 210 mm)
1 pc.
ISA-2-5
DIN rail (Width 35 mm x Length 245 mm)
1 pc.
ISA-2-6
DIN rail (Width 35 mm x Length 280 mm)
1 pc.
ISA-2-7
DIN rail (Width 35 mm x Length 315 mm)
1 pc.
: Each accessory is not assembled with the product, but shipped together.

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No.D-※S-OMG0006-C
Summary of Product parts
○Sensor unit
D-M9K
Sensor Connector (e-con)
D-F7K
D-Y7K
Element
Description
Mounting screw
Screw for securing the sensor unit in the groove in the actuator.
3.2 mounting hole
Hole for mounting the product to the actuator rail.
(Use the mounting bracket included with the actuator)
Indicator light (Sensor unit)
The indicator is ON (red or green) when the Sensor unit detects the magnetic field.
Lead wire
Lead wire for power supply and outputs. (3 m)
Sensor Connector (e-con)
Sensor Connector supplied loose with the product.

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No.D-※S-OMG0006-C
○Amplifier unit
Element
Description
Indicator light (OUT1)
Indicates the output status of OUT1.
The OUT1 light is ON (Green) when the output is ON.
Adjustment trimmer (OUT1)
For adjusting the detection range of OUT1.
Indicator light (OUT2)
Indicates the output status of OUT2.
The OUT2 light is ON (Orange) when the output is ON.
Adjustment trimmer (OUT2)
For adjusting the detection range of OUT2.
Indicator light (READY)
The READY light is ON (Red) when the sensor unit detects the magnetic field.
The detection ranges of OUT1 and OUT2 should be adjusted when this light is ON.
Lead wire
Lead wire for power supply and outputs. (3 m)
Through hole
Hole for direct mounting.
Sensor socket
For connecting the sensor.
Adjustment trimmer (ADJ.)
For adjusting the sensor unit when it is connected for the first time. Refer to Offset
adjustment (page 17) for details.
Indicator light (OFF SET)
The OFFSET light is ON (Red) when the adjustment is completed.

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No.D-※S-OMG0006-C
■Definition and terminology
Terms
Meaning
2
2-colour indication
Indication in which a red light is
ON in the operating position, and
a green light is ON in the
optimum operating range.
H
Hysteresis
The difference between the
points where the product turns
ON and OFF, which is provided
to prevent chattering.
I
Internal voltage drop
The voltage applied between the COM and signal line when the product turns ON.
L
Load current
The current flowing to the load when the product turns on.
M
Most sensitive position
The centre position of the sensor (which provides the strongest reaction from the
sensor), and also the centre position of the operating range.
N
Non-polarity
A 2-lead wire type of connection for which polarity is not important.
For example the load can be connected to either of (+) or ( - ).
S
Sequence controller
(PLC)
A device which performs sequence control, such as receipt of inputs from the
product along with programming and sending of the output to other equipment.
Solid state Auto switch
Product which generates ON and OFF outputs with or without mechanical contact
by using for example a transistor.

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No.D-※S-OMG0006-C
Mounting and Installation
■Wiring
Connections should only be made with the power supply turned OFF.
Use separate routes for the product wiring and any power or high voltage wiring. Otherwise, malfunction
may result due to noise.
Ensure that the FG terminal is connected to ground when using a commercially available switch-mode
power supply. When a switch-mode power supply is connected to the product, switching noise will be
superimposed and the product specification can no longer be met. This can be prevented by inserting a
noise filter, such as a line noise filter and ferrite core, between the switch-mode power supply and the
product, or by using a series power supply instead of a switch-mode power supply.
●Connecting the wiring
Attaching the sensor connector to the sensor wire
Strip the sensor wire as shown. Do not cut the insulator.
Insert the corresponding wire colour shown in the table into the pin number printed on the sensor connector,
to the bottom.
Pin number on connector
Wire colour
Contents
1
Black
SOUT1
2
Blue
GND
3
White
SOUT2
4
Brown
Vsw
Check that the above preparation has been performed correctly, then part A shown should be pressed in by
hand to make temporary connection.
Part A should then be pressed in using a suitable tool, such as pliers.
The sensor connector cannot be re-used once it has been fully crimped.
In cases of connection failure such as incorrect order of wires or incomplete insertion, please use a new
connector. (ZS-28-C-1)

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No.D-※S-OMG0006-C
●Installation / Removal of the sensor connector to the amplifier unit
When connecting the connector, insert it straight into the socket until the connector clicks.
When removing the connector, press down the lever to release the hook from the sensor socket and pull
the connector straight out.

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No.D-※S-OMG0006-C
■Internal circuit
○Sensor unit internal circuit
D-M9K / D-7K

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No.D-※S-OMG0006-C
○Amplifier unit internal circuit
NPN (2 output) type
D-RNK:
Max. load current: 80 mA
Max. applied voltage: 28 V
Internal voltage drop: 1.5 V or less
PNP (2 output) type
D-RPK:
Max. load current: 80 mA
Internal voltage drop: 1.5 V or less
[Note] Please contact SMC if using AND connection.

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No.D-※S-OMG0006-C
■Offset adjustment
(1) Connect the sensor unit to the amplifier unit, and connect the amplifier unit to the power supply.
(2) Insert a small flat blade screwdriver into the adjustment trimmer (ADJ.) to turn the trimmer clockwise or
counterclockwise.
Be careful where the screwdriver is inserted. Inserting the screwdriver into the indicator light (OFFSET)
hole may damage the light.
The recommended torque applied to the adjustment trimmer must be 20 mNm or less. The effective
rotation is 12 turns.
The adjustment trimmer does not have any rotational stop. If the desired adjustment is not achieved by
rotating in one direction, then try the other direction.
(3) When the indicator light (OFF SET) is red, adjustment is complete.
[Note] During offset adjustment, if the sensor unit is mounted to an actuator, remove the sensor unit
from the actuator so that no magnetic field is present. Keep the sensor unit away from any
magnetic field as far as possible because the sensor may detect a magnetic field even when the
operation light is not ON.
Offset Adjustment
Offset Adjustment is the optimization of the electrical reference point of the sensor.
Without offset adjustment, ON/OFF of the output signal cannot be operated correctly.
When the sensor unit is used for the first time, always perform offset adjustment.
After the adjustment, further adjustment is not necessary unless the sensor unit is replaced.

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No.D-※S-OMG0006-C
■Installation
●Installation of the amplifier unit
Perform offset adjustment before the installation of the amplifier unit. Refer to page 17.
○Direct installation
For direct mounting, use M3 screws (2 pcs.) or equivalent.
The recommended tightening torque of the screw is 0.5 to 0.7 Nm.
Mount the product on a flat and even surface. Mounting on an uneven surface can damage the case.
Screws and washers should be supplied by the user.
○Installation using DIN rail
Mounting
(1) Hook the claw part 1 to the DIN rail (35 mm width).
(2) Push the claw part 2 down until it clicks.
Removal
(1) Push the body towards the Sensor socket end.
(2) Pull the Sensor socket end upwards.
: We recommend using an end plate when mounting onto DIN rail. Refer to DIN rail end plate manufacturers for further details.

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No.D-※S-OMG0006-C
■Setting
Setting using the Adjustment trimmer.
“How to mount” depends on the actuator type and tube I.D.. Please refer to the actuator catalogue.
The size of the work piece (correct, too small, too large, or no work piece) can be verified by setting the
detection range of OUT1 and OUT2 within the operation range using the adjustment trimmer. (See below)
: As for standard products, the operating range depends on the actuator and tube I.D.. It cannot be varied.
The recommended torque applied to the adjustment trimmer is 2 to 20 mNm. The maximum rotation is 260
degrees. Make the adjustment within the specification range.
The scale of the trimmer does not show the operation range. Please only use this as a guide for setting.
<<Cautions when designing>>
For setting, do not move the actuator by hand. Use air to start the actuator.
The Detection range may vary depending on the air supply pressure, variation of the ambient magnetic field,
or the presence of any magnetic material.
The Minimum detection distance is 0.5 mm. This product is not applicable when the size difference of the
work piece is less than 0.5 mm in the stroke direction.
This product is not suitable for work pieces with unstable shapes such as rubber parts.