SMC Networks D-B53 Series User manual

D#ZZ-TF223-002EN
Page 1 of 2
Instruction Manual
Reed Auto switch - Band mounting
Series D-B53 / D-B54 / D-B64 / D-B59W
The intended use of the auto switch is to detect and control the position
of an actuator using magnetic detection.
1 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 labels of “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 10218-1: Manipulating industrial robots -Safety. etc.
•Refer to product catalogue, Operation Manual and Handling
Precautions for SMC Products for additional information.
•Keep this manual in a safe place for future reference.
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
•Always ensure compliance with relevant safety laws and
standards.
•All work must be carried out in a safe manner by a qualified person in
compliance with applicable national regulations.
•This product is class A equipment intended for use in an industrial
environment. There may be potential difficulties in ensuring
electromagnetic compatibility in other environments due to conducted
or radiated disturbances.
Warning
•Special products (-****) might have specifications different from those
shown in the Specifications section. Contact SMC for specific
drawings.
2 Specifications
2.1 Specifications
Model D-B53
D-B54 D-B64 D-B59W
Wiring style 2 wire
Application Relay, PLC
Maximum Load
voltage
24
VDC
24
VDC
100
VAC
200
VAC
24 V
AC/DC
100
VAC
200
VAC
24
VDC
Maximum Load
current (or range)
5 to 50
mA
5 to
50 mA
5 to
25 mA
5 to
12.5
mA
50
mA
25
mA
12.5
mA
5 to 40
mA
Contact protection None Built in
Max. internal
voltage drop
2.4 V 2.4 V (< 20 mA)
3.5 V (< 50 mA)
- 4 V
Internal resistance
- 25 Ωor less -
Operating time 1.2 ms
Indicator lamp Red LED is ON when
switch is ON -
Operating
:
Red
Optimum
:
Green
Impact proof 300 m/s
2
Insulation
resistance
50 MΩor more at 500 VDC mega
Proof voltage 1500 VAC for 1 minute
(between case and lead wire)
Ambient
temperature
-10 to 60°C
Enclosure
Protection
IP67 to IEC 60529 (JISC 0920)
Lead wire φ4 oilproof heavy duty vinyl cable,
2 cores: 0.
3
mm
2
3 Names and function of parts
4 Installation
4.1 Installation
Warning
•Do not install the product unless the safety instructions have
been read and understood.
4.2 Design and Selection
1) Confirm the specifications.
Read the specifications carefully and use the product correctly. The
product may be damaged or malfunction if it is used outside of the
specification range.
2) 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 40 mm.
3) 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 short
and the load may not operate correctly. The maximum detectable
piston speed is:
V (mm/s) =
Auto switch
operating range (mm)
X 1000
Load operating time (ms)
4) Keep wiring as short as possible
As the wire length to a load is increased, the inrush current at switch
ON becomes greater, which may shorten the product life (the switch
will stay constantly ON).
Use a contact protection box (CD-P11/CD-P12) when the wire length
is 5 m or longer.
5) Pay attention to the internal voltage drop of the switch.
1) Switches with an indicator LED
•If auto switches are connected in series, take note that there will be
a large volt drop because of internal resistance in the LED’s (refer
to internal voltage drop in the auto switch specifications).
[The voltage drop will be “n” times larger when “n” auto switches
are connected]. Even though an auto switch operates normally, the
load may not operate.
•In the same way, when operating below a specified voltage,
although the auto switch may operate normally, the load may not
operate. Therefore, the formula below should be satisfied after
confirming the minimum operating voltage of the load.
Supply
voltage
-- Internal volt drop > Minimum operating
voltage of load
of switch
2) If the internal resistance of an LED causes a problem, select a
switch without an indicator light (model D-B64).
6) Do not use a load that generates a surge voltage.
If driving a load such as a relay that generates a surge voltage, use a
contact protection box.
7) Caution for use in an interlock circuit
When an auto switch is used for an interlock signal requiring high
reliability, devise a double interlock system by providing a mechanical
protection function, or by using another switch (sensor) together with
the auto switch.
8) Perform periodical maintenance and confirm proper operation.
Ensure sufficient clearance for maintenance activities. When
designing an application, be sure to allow sufficient clearance for
maintenance and inspections.
4.3 Mounting and Adjustment
1) Do not drop or bump the product.
Do not drop, bump or apply excessive impact (300 m/s
2
or more) while
handling. Although the body of the switch may not appear damaged,
the inside of the switch may be damaged and cause a malfunction.
2) Do not carry an actuator by the auto switch 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.
3) Mount switches using the correct tightening torque.
If a switch is tightened beyond the tightening torque range, the
mounting screw, mounting bracket or switch may be damaged.
On the other hand, tightening below the tightening torque range may
allow the switch to slip out of position.
4 Installation (continued)
4) Mount a switch at the centre of the operating range.
Adjust the auto switch mounting position so that the piston stops at
the centre of the operating range (the range in which the switch is
ON). The auto switch Red LED will turn ON.
For the 2 colour type auto switch (D-B59W) the Green LED turns ON
to indicate the optimum position.
The mounting position shown in the catalogue indicates the optimum
position at the end of stroke. If mounted at the end of the operating
range (around the borderline of ON and OFF) operation may be
unstable.
5) The auto switch ON and OFF position operates with a hysteresis. If
the hysteresis causes a problem, please consult with SMC.
4.4 Mounting using a mounting bracket
Each actuator has a specified mounting bracket type.
Mounting depends on the actuator type and tube I.D. Please refer to the
actuator catalogue.
When an auto switch is mounted for the first time, ensure that the actuator
is the type with a built-in magnet, and prepare a mounting bracket
corresponding to the actuator.
•Mounting procedure
1) Place a mounting band on to the cylinder tube and set it at the required
auto switch mounting position.
2) Put the mounting part of the auto switch between the band mounting
holes, then adjust the position of the switch mounting holes to those
of the mounting band.
3) Lightly thread the auto switch mounting screw through the mounting
hole into the threaded part of the band fitting.
4) After sliding the whole body to the detecting position, tighten the
mounting screw to secure the auto switch while properly contacting
the auto switch bottom part to the cylinder tube.
Tightening torque of the M4 screw should be 1.0 to 1.2 N•m.
5) Modification of the detecting position should be made following step
number (3).
Caution
Note 1) Tighten the screw according to the specified torque when
mounting the auto switch.
Note 2) Set the auto switch mounting band perpendicular to cylinder tube.
ORIGINAL INSTRUCTIONS
Piston moving
direction
Piston moving
direction
OFF position
ON position
Hysteresis
D
-
B59W
D-B53 / D-B54 / D-B64
Note: There is no indicator lamp in model “D-B64”
Mounting hole
Lead wire
Lead wire
Indicator lamp
Indicator lamp
Mounting hole
Auto switch
Auto switch mounting
screw M4 x 0.7 x 22L
Auto switch mounting band
(with bracket)
Correct mounting Incorrect mounting

D#ZZ-TF223-002EN
Page 1 of 2
Instruction Manual
Reed Auto switch - Band mounting
Series D-B53 / D-B54 / D-B64 / D-B59W
The intended use of the auto switch is to detect and control the position
of an actuator using magnetic detection.
1 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 labels of “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 10218-1: Manipulating industrial robots -Safety. etc.
•Refer to product catalogue, Operation Manual and Handling
Precautions for SMC Products for additional information.
•Keep this manual in a safe place for future reference.
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
•Always ensure compliance with relevant safety laws and
standards.
•All work must be carried out in a safe manner by a qualified person in
compliance with applicable national regulations.
•This product is class A equipment intended for use in an industrial
environment. There may be potential difficulties in ensuring
electromagnetic compatibility in other environments due to conducted
or radiated disturbances.
Warning
•Special products (-****) might have specifications different from those
shown in the Specifications section. Contact SMC for specific
drawings.
2 Specifications
2.1 Specifications
Model D-B53
D-B54 D-B64 D-B59W
Wiring style 2 wire
Application Relay, PLC
Maximum Load
voltage
24
VDC
24
VDC
100
VAC
200
VAC
24 V
AC/DC
100
VAC
200
VAC
24
VDC
Maximum Load
current (or range)
5 to 50
mA
5 to
50 mA
5 to
25 mA
5 to
12.5
mA
50
mA
25
mA
12.5
mA
5 to 40
mA
Contact protection None Built in
Max. internal
voltage drop
2.4 V 2.4 V (< 20 mA)
3.5 V (< 50 mA)
- 4 V
Internal resistance
- 25 Ωor less -
Operating time 1.2 ms
Indicator lamp Red LED is ON when
switch is ON -
Operating
:
Red
Optimum
:
Green
Impact proof 300 m/s
2
Insulation
resistance
50 MΩor more at 500 VDC mega
Proof voltage 1500 VAC for 1 minute
(between case and lead wire)
Ambient
temperature
-10 to 60°C
Enclosure
Protection
IP67 to IEC 60529 (JISC 0920)
Lead wire φ4 oilproof heavy duty vinyl cable,
2 cores: 0.
3
mm
2
3 Names and function of parts
4 Installation
4.1 Installation
Warning
•Do not install the product unless the safety instructions have
been read and understood.
4.2 Design and Selection
1) Confirm the specifications.
Read the specifications carefully and use the product correctly. The
product may be damaged or malfunction if it is used outside of the
specification range.
2) 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 40 mm.
3) 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 short
and the load may not operate correctly. The maximum detectable
piston speed is:
V (mm/s) =
Auto switch
operating range (mm)
X 1000
Load operating time (ms)
4) Keep wiring as short as possible
As the wire length to a load is increased, the inrush current at switch
ON becomes greater, which may shorten the product life (the switch
will stay constantly ON).
Use a contact protection box (CD-P11/CD-P12) when the wire length
is 5 m or longer.
5) Pay attention to the internal voltage drop of the switch.
1) Switches with an indicator LED
•If auto switches are connected in series, take note that there will be
a large volt drop because of internal resistance in the LED’s (refer
to internal voltage drop in the auto switch specifications).
[The voltage drop will be “n” times larger when “n” auto switches
are connected]. Even though an auto switch operates normally, the
load may not operate.
•In the same way, when operating below a specified voltage,
although the auto switch may operate normally, the load may not
operate. Therefore, the formula below should be satisfied after
confirming the minimum operating voltage of the load.
Supply
voltage
-- Internal volt drop > Minimum operating
voltage of load
of switch
2) If the internal resistance of an LED causes a problem, select a
switch without an indicator light (model D-B64).
6) Do not use a load that generates a surge voltage.
If driving a load such as a relay that generates a surge voltage, use a
contact protection box.
7) Caution for use in an interlock circuit
When an auto switch is used for an interlock signal requiring high
reliability, devise a double interlock system by providing a mechanical
protection function, or by using another switch (sensor) together with
the auto switch.
8) Perform periodical maintenance and confirm proper operation.
Ensure sufficient clearance for maintenance activities. When
designing an application, be sure to allow sufficient clearance for
maintenance and inspections.
4.3 Mounting and Adjustment
1) Do not drop or bump the product.
Do not drop, bump or apply excessive impact (300 m/s
2
or more) while
handling. Although the body of the switch may not appear damaged,
the inside of the switch may be damaged and cause a malfunction.
2) Do not carry an actuator by the auto switch 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.
3) Mount switches using the correct tightening torque.
If a switch is tightened beyond the tightening torque range, the
mounting screw, mounting bracket or switch may be damaged.
On the other hand, tightening below the tightening torque range may
allow the switch to slip out of position.
4 Installation (continued)
4) Mount a switch at the centre of the operating range.
Adjust the auto switch mounting position so that the piston stops at
the centre of the operating range (the range in which the switch is
ON). The auto switch Red LED will turn ON.
For the 2 colour type auto switch (D-B59W) the Green LED turns ON
to indicate the optimum position.
The mounting position shown in the catalogue indicates the optimum
position at the end of stroke. If mounted at the end of the operating
range (around the borderline of ON and OFF) operation may be
unstable.
5) The auto switch ON and OFF position operates with a hysteresis. If
the hysteresis causes a problem, please consult with SMC.
4.4 Mounting using a mounting bracket
Each actuator has a specified mounting bracket type.
Mounting depends on the actuator type and tube I.D. Please refer to the
actuator catalogue.
When an auto switch is mounted for the first time, ensure that the actuator
is the type with a built-in magnet, and prepare a mounting bracket
corresponding to the actuator.
•Mounting procedure
1) Place a mounting band on to the cylinder tube and set it at the required
auto switch mounting position.
2) Put the mounting part of the auto switch between the band mounting
holes, then adjust the position of the switch mounting holes to those
of the mounting band.
3) Lightly thread the auto switch mounting screw through the mounting
hole into the threaded part of the band fitting.
4) After sliding the whole body to the detecting position, tighten the
mounting screw to secure the auto switch while properly contacting
the auto switch bottom part to the cylinder tube.
Tightening torque of the M4 screw should be 1.0 to 1.2 N•m.
5) Modification of the detecting position should be made following step
number (3).
Caution
Note 1) Tighten the screw according to the specified torque when
mounting the auto switch.
Note 2) Set the auto switch mounting band perpendicular to cylinder tube.
ORIGINAL INSTRUCTIONS
Piston moving
direction
Piston moving
direction
OFF position
ON position
Hysteresis
D
-
B59W
D-B53 / D-B54 / D-B64
Note: There is no indicator lamp in model “D-B64”
Mounting hole
Lead wire
Lead wire
Indicator lamp
Indicator lamp
Mounting hole
Auto switch
Auto switch mounting
screw M4 x 0.7 x 22L
Auto switch mounting band
(with bracket)
Correct mounting Incorrect mounting

D#ZZ-TF223-002EN
Page 1 of 2
Instruction Manual
Reed Auto switch - Band mounting
Series D-B53 / D-B54 / D-B64 / D-B59W
The intended use of the auto switch is to detect and control the position
of an actuator using magnetic detection.
1 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 labels of “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 10218-1: Manipulating industrial robots -Safety. etc.
•Refer to product catalogue, Operation Manual and Handling
Precautions for SMC Products for additional information.
•Keep this manual in a safe place for future reference.
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
•Always ensure compliance with relevant safety laws and
standards.
•All work must be carried out in a safe manner by a qualified person in
compliance with applicable national regulations.
•This product is class A equipment intended for use in an industrial
environment. There may be potential difficulties in ensuring
electromagnetic compatibility in other environments due to conducted
or radiated disturbances.
Warning
•Special products (-****) might have specifications different from those
shown in the Specifications section. Contact SMC for specific
drawings.
2 Specifications
2.1 Specifications
Model D-B53
D-B54 D-B64 D-B59W
Wiring style 2 wire
Application Relay, PLC
Maximum Load
voltage
24
VDC
24
VDC
100
VAC
200
VAC
24 V
AC/DC
100
VAC
200
VAC
24
VDC
Maximum Load
current (or range)
5 to 50
mA
5 to
50 mA
5 to
25 mA
5 to
12.5
mA
50
mA
25
mA
12.5
mA
5 to 40
mA
Contact protection None Built in
Max. internal
voltage drop
2.4 V 2.4 V (< 20 mA)
3.5 V (< 50 mA)
- 4 V
Internal resistance
- 25 Ωor less -
Operating time 1.2 ms
Indicator lamp Red LED is ON when
switch is ON -
Operating
:
Red
Optimum
:
Green
Impact proof 300 m/s
2
Insulation
resistance
50 MΩor more at 500 VDC mega
Proof voltage 1500 VAC for 1 minute
(between case and lead wire)
Ambient
temperature
-10 to 60°C
Enclosure
Protection
IP67 to IEC 60529 (JISC 0920)
Lead wire φ4 oilproof heavy duty vinyl cable,
2 cores: 0.
3
mm
2
3 Names and function of parts
4 Installation
4.1 Installation
Warning
•Do not install the product unless the safety instructions have
been read and understood.
4.2 Design and Selection
1) Confirm the specifications.
Read the specifications carefully and use the product correctly. The
product may be damaged or malfunction if it is used outside of the
specification range.
2) 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 40 mm.
3) 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 short
and the load may not operate correctly. The maximum detectable
piston speed is:
V (mm/s) =
Auto switch
operating range (mm)
X 1000
Load operating time (ms)
4) Keep wiring as short as possible
As the wire length to a load is increased, the inrush current at switch
ON becomes greater, which may shorten the product life (the switch
will stay constantly ON).
Use a contact protection box (CD-P11/CD-P12) when the wire length
is 5 m or longer.
5) Pay attention to the internal voltage drop of the switch.
1) Switches with an indicator LED
•If auto switches are connected in series, take note that there will be
a large volt drop because of internal resistance in the LED’s (refer
to internal voltage drop in the auto switch specifications).
[The voltage drop will be “n” times larger when “n” auto switches
are connected]. Even though an auto switch operates normally, the
load may not operate.
•In the same way, when operating below a specified voltage,
although the auto switch may operate normally, the load may not
operate. Therefore, the formula below should be satisfied after
confirming the minimum operating voltage of the load.
Supply
voltage
-- Internal volt drop > Minimum operating
voltage of load
of switch
2) If the internal resistance of an LED causes a problem, select a
switch without an indicator light (model D-B64).
6) Do not use a load that generates a surge voltage.
If driving a load such as a relay that generates a surge voltage, use a
contact protection box.
7) Caution for use in an interlock circuit
When an auto switch is used for an interlock signal requiring high
reliability, devise a double interlock system by providing a mechanical
protection function, or by using another switch (sensor) together with
the auto switch.
8) Perform periodical maintenance and confirm proper operation.
Ensure sufficient clearance for maintenance activities. When
designing an application, be sure to allow sufficient clearance for
maintenance and inspections.
4.3 Mounting and Adjustment
1) Do not drop or bump the product.
Do not drop, bump or apply excessive impact (300 m/s
2
or more) while
handling. Although the body of the switch may not appear damaged,
the inside of the switch may be damaged and cause a malfunction.
2) Do not carry an actuator by the auto switch 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.
3) Mount switches using the correct tightening torque.
If a switch is tightened beyond the tightening torque range, the
mounting screw, mounting bracket or switch may be damaged.
On the other hand, tightening below the tightening torque range may
allow the switch to slip out of position.
4 Installation (continued)
4) Mount a switch at the centre of the operating range.
Adjust the auto switch mounting position so that the piston stops at
the centre of the operating range (the range in which the switch is
ON). The auto switch Red LED will turn ON.
For the 2 colour type auto switch (D-B59W) the Green LED turns ON
to indicate the optimum position.
The mounting position shown in the catalogue indicates the optimum
position at the end of stroke. If mounted at the end of the operating
range (around the borderline of ON and OFF) operation may be
unstable.
5) The auto switch ON and OFF position operates with a hysteresis. If
the hysteresis causes a problem, please consult with SMC.
4.4 Mounting using a mounting bracket
Each actuator has a specified mounting bracket type.
Mounting depends on the actuator type and tube I.D. Please refer to the
actuator catalogue.
When an auto switch is mounted for the first time, ensure that the actuator
is the type with a built-in magnet, and prepare a mounting bracket
corresponding to the actuator.
•Mounting procedure
1) Place a mounting band on to the cylinder tube and set it at the required
auto switch mounting position.
2) Put the mounting part of the auto switch between the band mounting
holes, then adjust the position of the switch mounting holes to those
of the mounting band.
3) Lightly thread the auto switch mounting screw through the mounting
hole into the threaded part of the band fitting.
4) After sliding the whole body to the detecting position, tighten the
mounting screw to secure the auto switch while properly contacting
the auto switch bottom part to the cylinder tube.
Tightening torque of the M4 screw should be 1.0 to 1.2 N•m.
5) Modification of the detecting position should be made following step
number (3).
Caution
Note 1) Tighten the screw according to the specified torque when
mounting the auto switch.
Note 2) Set the auto switch mounting band perpendicular to cylinder tube.
ORIGINAL INSTRUCTIONS
Piston moving
direction
Piston moving
direction
OFF position
ON position
Hysteresis
D
-
B59W
D-B53 / D-B54 / D-B64
Note: There is no indicator lamp in model “D-B64”
Mounting hole
Lead wire
Lead wire
Indicator lamp
Indicator lamp
Mounting hole
Auto switch
Auto switch mounting
screw M4 x 0.7 x 22L
Auto switch mounting band
(with bracket)
Correct mounting Incorrect mounting

D#ZZ-TF223-002EN
Page 1 of 2
Instruction Manual
Reed Auto switch - Band mounting
Series D-B53 / D-B54 / D-B64 / D-B59W
The intended use of the auto switch is to detect and control the position
of an actuator using magnetic detection.
1 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 labels of “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 10218-1: Manipulating industrial robots -Safety. etc.
•Refer to product catalogue, Operation Manual and Handling
Precautions for SMC Products for additional information.
•Keep this manual in a safe place for future reference.
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
•Always ensure compliance with relevant safety laws and
standards.
•All work must be carried out in a safe manner by a qualified person in
compliance with applicable national regulations.
•This product is class A equipment intended for use in an industrial
environment. There may be potential difficulties in ensuring
electromagnetic compatibility in other environments due to conducted
or radiated disturbances.
Warning
•Special products (-****) might have specifications different from those
shown in the Specifications section. Contact SMC for specific
drawings.
2 Specifications
2.1 Specifications
Model D-B53
D-B54 D-B64 D-B59W
Wiring style 2 wire
Application Relay, PLC
Maximum Load
voltage
24
VDC
24
VDC
100
VAC
200
VAC
24 V
AC/DC
100
VAC
200
VAC
24
VDC
Maximum Load
current (or range)
5 to 50
mA
5 to
50 mA
5 to
25 mA
5 to
12.5
mA
50
mA
25
mA
12.5
mA
5 to 40
mA
Contact protection None Built in
Max. internal
voltage drop
2.4 V 2.4 V (< 20 mA)
3.5 V (< 50 mA)
- 4 V
Internal resistance
- 25 Ωor less -
Operating time 1.2 ms
Indicator lamp Red LED is ON when
switch is ON -
Operating
:
Red
Optimum
:
Green
Impact proof 300 m/s
2
Insulation
resistance
50 MΩor more at 500 VDC mega
Proof voltage 1500 VAC for 1 minute
(between case and lead wire)
Ambient
temperature
-10 to 60°C
Enclosure
Protection
IP67 to IEC 60529 (JISC 0920)
Lead wire φ4 oilproof heavy duty vinyl cable,
2 cores: 0.
3
mm
2
3 Names and function of parts
4 Installation
4.1 Installation
Warning
•Do not install the product unless the safety instructions have
been read and understood.
4.2 Design and Selection
1) Confirm the specifications.
Read the specifications carefully and use the product correctly. The
product may be damaged or malfunction if it is used outside of the
specification range.
2) 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 40 mm.
3) 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 short
and the load may not operate correctly. The maximum detectable
piston speed is:
V (mm/s) =
Auto switch
operating range (mm)
X 1000
Load operating time (ms)
4) Keep wiring as short as possible
As the wire length to a load is increased, the inrush current at switch
ON becomes greater, which may shorten the product life (the switch
will stay constantly ON).
Use a contact protection box (CD-P11/CD-P12) when the wire length
is 5 m or longer.
5) Pay attention to the internal voltage drop of the switch.
1) Switches with an indicator LED
•If auto switches are connected in series, take note that there will be
a large volt drop because of internal resistance in the LED’s (refer
to internal voltage drop in the auto switch specifications).
[The voltage drop will be “n” times larger when “n” auto switches
are connected]. Even though an auto switch operates normally, the
load may not operate.
•In the same way, when operating below a specified voltage,
although the auto switch may operate normally, the load may not
operate. Therefore, the formula below should be satisfied after
confirming the minimum operating voltage of the load.
Supply
voltage
-- Internal volt drop > Minimum operating
voltage of load
of switch
2) If the internal resistance of an LED causes a problem, select a
switch without an indicator light (model D-B64).
6) Do not use a load that generates a surge voltage.
If driving a load such as a relay that generates a surge voltage, use a
contact protection box.
7) Caution for use in an interlock circuit
When an auto switch is used for an interlock signal requiring high
reliability, devise a double interlock system by providing a mechanical
protection function, or by using another switch (sensor) together with
the auto switch.
8) Perform periodical maintenance and confirm proper operation.
Ensure sufficient clearance for maintenance activities. When
designing an application, be sure to allow sufficient clearance for
maintenance and inspections.
4.3 Mounting and Adjustment
1) Do not drop or bump the product.
Do not drop, bump or apply excessive impact (300 m/s
2
or more) while
handling. Although the body of the switch may not appear damaged,
the inside of the switch may be damaged and cause a malfunction.
2) Do not carry an actuator by the auto switch 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.
3) Mount switches using the correct tightening torque.
If a switch is tightened beyond the tightening torque range, the
mounting screw, mounting bracket or switch may be damaged.
On the other hand, tightening below the tightening torque range may
allow the switch to slip out of position.
4 Installation (continued)
4) Mount a switch at the centre of the operating range.
Adjust the auto switch mounting position so that the piston stops at
the centre of the operating range (the range in which the switch is
ON). The auto switch Red LED will turn ON.
For the 2 colour type auto switch (D-B59W) the Green LED turns ON
to indicate the optimum position.
The mounting position shown in the catalogue indicates the optimum
position at the end of stroke. If mounted at the end of the operating
range (around the borderline of ON and OFF) operation may be
unstable.
5) The auto switch ON and OFF position operates with a hysteresis. If
the hysteresis causes a problem, please consult with SMC.
4.4 Mounting using a mounting bracket
Each actuator has a specified mounting bracket type.
Mounting depends on the actuator type and tube I.D. Please refer to the
actuator catalogue.
When an auto switch is mounted for the first time, ensure that the actuator
is the type with a built-in magnet, and prepare a mounting bracket
corresponding to the actuator.
•Mounting procedure
1) Place a mounting band on to the cylinder tube and set it at the required
auto switch mounting position.
2) Put the mounting part of the auto switch between the band mounting
holes, then adjust the position of the switch mounting holes to those
of the mounting band.
3) Lightly thread the auto switch mounting screw through the mounting
hole into the threaded part of the band fitting.
4) After sliding the whole body to the detecting position, tighten the
mounting screw to secure the auto switch while properly contacting
the auto switch bottom part to the cylinder tube.
Tightening torque of the M4 screw should be 1.0 to 1.2 N•m.
5) Modification of the detecting position should be made following step
number (3).
Caution
Note 1) Tighten the screw according to the specified torque when
mounting the auto switch.
Note 2) Set the auto switch mounting band perpendicular to cylinder tube.
ORIGINAL INSTRUCTIONS
Piston moving
direction
Piston moving
direction
OFF position
ON position
Hysteresis
D
-
B59W
D-B53 / D-B54 / D-B64
Note: There is no indicator lamp in model “D-B64”
Mounting hole
Lead wire
Lead wire
Indicator lamp
Indicator lamp
Mounting hole
Auto switch
Auto switch mounting
screw M4 x 0.7 x 22L
Auto switch mounting band
(with bracket)
Correct mounting Incorrect mounting

D#ZZ-TF223-002EN
Page 2 of 2
4 Installation (continued)
4.5 Wiring
1) Avoid repeatedly bending or stressing lead wires.
Broken lead wires can result from wiring layouts which repeatedly
apply bending stress or stretching force to the lead wires.
2) Be sure to connect the load before power is applied.
If the power is turned ON when an auto switch is not connected to a
load, the switch will be instantly damaged due to excess current.
3) Confirm proper insulation of wiring.
Check 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.
4) Do not route wiring with power lines or high voltage lines.
Avoid parallel wiring or wiring in the same conduit with these lines.
Control circuits containing auto switches may malfunction due to noise.
5) Do not allow short circuit of loads.
If power is turned ON with a load in a short circuit condition, the switch
will be instantly damaged due to excess current flow.
6) Avoid incorrect wiring
An auto switch with indicator light has polarity. The brown [red] lead
wire is (+), and the blue [black] lead wire is (–).
If connections are reversed, the switch will operate, however, the LED
will not light up. Also note that a current greater than that specified will
damage the LED and it will no longer operate.
4.5.1 Wiring diagram
4 Installation (continued)
4.6 Environment
Warning
•Do not use in an environment where oil, corrosive gases, chemicals,
salt water or steam are present.
•Do not install in a location subject to vibration or impact in excess of
the product specifications.
•Do not mount in a location exposed to radiant heat that would result in
temperatures in excess of the product specification.
•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.
•Do not use in an environment with temperature cycles.
•Avoid accumulation of iron waste or close contact with magnetic
substances. A large amount of accumulated iron waste such as
machining chips or spatter may cause the auto switch to malfunction.
5 How to Order
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for How to order information.
6 Outline dimensions
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for outline dimensions.
7 Maintenance
7.1 General Maintenance
Caution
•Not following proper maintenance procedures could cause the product
to malfunction and lead to equipment damage.
•If handled improperly, compressed air can be dangerous.
•Maintenance of pneumatic systems should be performed only by
qualified personnel.
•Before performing maintenance, turn off the power supply and be sure
to cut off the supply pressure. Confirm that the air is released to
atmosphere.
•After installation and maintenance, apply operating pressure and
power to the equipment and perform appropriate functional and
leakage tests to make sure the equipment is installed correctly.
•If any electrical connections are disturbed during maintenance, ensure
they are reconnected correctly and safety checks are carried out as
required to ensure continued compliance with applicable national
regulations.
•Do not make any modification to the product.
•Do not disassemble the product, unless required by installation or
maintenance instructions.
•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, re-tighten 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.
8 Troubleshooting
When detection failure occurs check the switch according to the chart
9 Limitations of Use
9.1 Limited warranty and Disclaimer/Compliance Requirements
Refer to Handling Precautions for SMC Products.
10 Product disposal
This product should not be disposed of as municipal waste. Check your
local regulations and guidelines to dispose of this product correctly, in
order to reduce the impact on human health and the environment.
11 Contacts
Refer to www.smcworld.com or www.smc.eu for your local
distributor/importer.
URL :
http
s
//
www.smcworld.com
(Global) http
s
//
www.smc
.
eu
(Europe)
SMC Corporation, Akihabara UDX15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101 0021
Specifications are subject to change without prior notice from the manufacturer.
© 2021 SMC Corporation All Rights Reserved.
Template DKP50047-F-085M
Stays ON
(sometimes stays ON)
Lamp lights up
Stays OFF
(sometimes stays OFF)
Lamp does not light up
Problem
Output Normal,
Lamp does not light up
Check Wiring (output)
Normal
Normal
Normal
Normal Abnormal
Abnormal
Abnormal
Replace the auto switch
Check operating
environment,
Load specification
Abnormal
Abnormal
Check Wiring (output)
Check operating environment,
Load specification and Wire length
Normal
(A) (B) (C) (D) (A) (E) (D)
(A) = Auto switch failure
(B) = Replace the actuator. Detectable magnetic field inadequate (or no magnet).
(C) = Correct the wiring, replace the load or replace the auto switch after correcting the wiring.
(D) = After checking the operating environment, replace the auto switch.
(E) = Replace the auto switch after correcting the wiring.
D
-
B53
Resistor LED
Reed
switch
Zener diode
OUT (+)
Brown
OUT (-)
Blue
D-B59W
OUT (+)
Brown
OUT (-)
Blue
Reed switch
Zener
diode
LED
Choke coil
D
-
B54
Resistor LED
Choke coil
OUT (+)
Brown
OUT (-)
Blue
Zener
diode
Reed
switch
Surge
absorber
Choke coil
Surge
absorber
Reed
switch
OUT (-)
Blue
OUT (+)
Brown
D
-
B64

D#ZZ-TF223-002EN
Page 2 of 2
4 Installation (continued)
4.5 Wiring
1) Avoid repeatedly bending or stressing lead wires.
Broken lead wires can result from wiring layouts which repeatedly
apply bending stress or stretching force to the lead wires.
2) Be sure to connect the load before power is applied.
If the power is turned ON when an auto switch is not connected to a
load, the switch will be instantly damaged due to excess current.
3) Confirm proper insulation of wiring.
Check 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.
4) Do not route wiring with power lines or high voltage lines.
Avoid parallel wiring or wiring in the same conduit with these lines.
Control circuits containing auto switches may malfunction due to noise.
5) Do not allow short circuit of loads.
If power is turned ON with a load in a short circuit condition, the switch
will be instantly damaged due to excess current flow.
6) Avoid incorrect wiring
An auto switch with indicator light has polarity. The brown [red] lead
wire is (+), and the blue [black] lead wire is (–).
If connections are reversed, the switch will operate, however, the LED
will not light up. Also note that a current greater than that specified will
damage the LED and it will no longer operate.
4.5.1 Wiring diagram
4 Installation (continued)
4.6 Environment
Warning
•Do not use in an environment where oil, corrosive gases, chemicals,
salt water or steam are present.
•Do not install in a location subject to vibration or impact in excess of
the product specifications.
•Do not mount in a location exposed to radiant heat that would result in
temperatures in excess of the product specification.
•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.
•Do not use in an environment with temperature cycles.
•Avoid accumulation of iron waste or close contact with magnetic
substances. A large amount of accumulated iron waste such as
machining chips or spatter may cause the auto switch to malfunction.
5 How to Order
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for How to order information.
6 Outline dimensions
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for outline dimensions.
7 Maintenance
7.1 General Maintenance
Caution
•Not following proper maintenance procedures could cause the product
to malfunction and lead to equipment damage.
•If handled improperly, compressed air can be dangerous.
•Maintenance of pneumatic systems should be performed only by
qualified personnel.
•Before performing maintenance, turn off the power supply and be sure
to cut off the supply pressure. Confirm that the air is released to
atmosphere.
•After installation and maintenance, apply operating pressure and
power to the equipment and perform appropriate functional and
leakage tests to make sure the equipment is installed correctly.
•If any electrical connections are disturbed during maintenance, ensure
they are reconnected correctly and safety checks are carried out as
required to ensure continued compliance with applicable national
regulations.
•Do not make any modification to the product.
•Do not disassemble the product, unless required by installation or
maintenance instructions.
•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, re-tighten 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.
8 Troubleshooting
When detection failure occurs check the switch according to the chart
9 Limitations of Use
9.1 Limited warranty and Disclaimer/Compliance Requirements
Refer to Handling Precautions for SMC Products.
10 Product disposal
This product should not be disposed of as municipal waste. Check your
local regulations and guidelines to dispose of this product correctly, in
order to reduce the impact on human health and the environment.
11 Contacts
Refer to www.smcworld.com or www.smc.eu for your local
distributor/importer.
URL :
http
s
//
www.smcworld.com
(Global) http
s
//
www.smc
.
eu
(Europe)
SMC Corporation, Akihabara UDX15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101 0021
Specifications are subject to change without prior notice from the manufacturer.
© 2021 SMC Corporation All Rights Reserved.
Template DKP50047-F-085M
Stays ON
(sometimes stays ON)
Lamp lights up
Stays OFF
(sometimes stays OFF)
Lamp does not light up
Problem
Output Normal,
Lamp does not light up
Check Wiring (output)
Normal
Normal
Normal
Normal Abnormal
Abnormal
Abnormal
Replace the auto switch
Check operating
environment,
Load specification
Abnormal
Abnormal
Check Wiring (output)
Check operating environment,
Load specification and Wire length
Normal
(A) (B) (C) (D) (A) (E) (D)
(A) = Auto switch failure
(B) = Replace the actuator. Detectable magnetic field inadequate (or no magnet).
(C) = Correct the wiring, replace the load or replace the auto switch after correcting the wiring.
(D) = After checking the operating environment, replace the auto switch.
(E) = Replace the auto switch after correcting the wiring.
D
-
B53
Resistor LED
Reed
switch
Zener diode
OUT (+)
Brown
OUT (-)
Blue
D-B59W
OUT (+)
Brown
OUT (-)
Blue
Reed switch
Zener
diode
LED
Choke coil
D
-
B54
Resistor LED
Choke coil
OUT (+)
Brown
OUT (-)
Blue
Zener
diode
Reed
switch
Surge
absorber
Choke coil
Surge
absorber
Reed
switch
OUT (-)
Blue
OUT (+)
Brown
D
-
B64

D#ZZ-TF223-002EN
Page 2 of 2
4 Installation (continued)
4.5 Wiring
1) Avoid repeatedly bending or stressing lead wires.
Broken lead wires can result from wiring layouts which repeatedly
apply bending stress or stretching force to the lead wires.
2) Be sure to connect the load before power is applied.
If the power is turned ON when an auto switch is not connected to a
load, the switch will be instantly damaged due to excess current.
3) Confirm proper insulation of wiring.
Check 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.
4) Do not route wiring with power lines or high voltage lines.
Avoid parallel wiring or wiring in the same conduit with these lines.
Control circuits containing auto switches may malfunction due to noise.
5) Do not allow short circuit of loads.
If power is turned ON with a load in a short circuit condition, the switch
will be instantly damaged due to excess current flow.
6) Avoid incorrect wiring
An auto switch with indicator light has polarity. The brown [red] lead
wire is (+), and the blue [black] lead wire is (–).
If connections are reversed, the switch will operate, however, the LED
will not light up. Also note that a current greater than that specified will
damage the LED and it will no longer operate.
4.5.1 Wiring diagram
4 Installation (continued)
4.6 Environment
Warning
•Do not use in an environment where oil, corrosive gases, chemicals,
salt water or steam are present.
•Do not install in a location subject to vibration or impact in excess of
the product specifications.
•Do not mount in a location exposed to radiant heat that would result in
temperatures in excess of the product specification.
•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.
•Do not use in an environment with temperature cycles.
•Avoid accumulation of iron waste or close contact with magnetic
substances. A large amount of accumulated iron waste such as
machining chips or spatter may cause the auto switch to malfunction.
5 How to Order
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for How to order information.
6 Outline dimensions
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for outline dimensions.
7 Maintenance
7.1 General Maintenance
Caution
•Not following proper maintenance procedures could cause the product
to malfunction and lead to equipment damage.
•If handled improperly, compressed air can be dangerous.
•Maintenance of pneumatic systems should be performed only by
qualified personnel.
•Before performing maintenance, turn off the power supply and be sure
to cut off the supply pressure. Confirm that the air is released to
atmosphere.
•After installation and maintenance, apply operating pressure and
power to the equipment and perform appropriate functional and
leakage tests to make sure the equipment is installed correctly.
•If any electrical connections are disturbed during maintenance, ensure
they are reconnected correctly and safety checks are carried out as
required to ensure continued compliance with applicable national
regulations.
•Do not make any modification to the product.
•Do not disassemble the product, unless required by installation or
maintenance instructions.
•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, re-tighten 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.
8 Troubleshooting
When detection failure occurs check the switch according to the chart
9 Limitations of Use
9.1 Limited warranty and Disclaimer/Compliance Requirements
Refer to Handling Precautions for SMC Products.
10 Product disposal
This product should not be disposed of as municipal waste. Check your
local regulations and guidelines to dispose of this product correctly, in
order to reduce the impact on human health and the environment.
11 Contacts
Refer to www.smcworld.com or www.smc.eu for your local
distributor/importer.
URL :
http
s
//
www.smcworld.com
(Global) http
s
//
www.smc
.
eu
(Europe)
SMC Corporation, Akihabara UDX15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101 0021
Specifications are subject to change without prior notice from the manufacturer.
© 2021 SMC Corporation All Rights Reserved.
Template DKP50047-F-085M
Stays ON
(sometimes stays ON)
Lamp lights up
Stays OFF
(sometimes stays OFF)
Lamp does not light up
Problem
Output Normal,
Lamp does not light up
Check Wiring (output)
Normal
Normal
Normal
Normal Abnormal
Abnormal
Abnormal
Replace the auto switch
Check operating
environment,
Load specification
Abnormal
Abnormal
Check Wiring (output)
Check operating environment,
Load specification and Wire length
Normal
(A) (B) (C) (D) (A) (E) (D)
(A) = Auto switch failure
(B) = Replace the actuator. Detectable magnetic field inadequate (or no magnet).
(C) = Correct the wiring, replace the load or replace the auto switch after correcting the wiring.
(D) = After checking the operating environment, replace the auto switch.
(E) = Replace the auto switch after correcting the wiring.
D
-
B53
Resistor LED
Reed
switch
Zener diode
OUT (+)
Brown
OUT (-)
Blue
D-B59W
OUT (+)
Brown
OUT (-)
Blue
Reed switch
Zener
diode
LED
Choke coil
D
-
B54
Resistor LED
Choke coil
OUT (+)
Brown
OUT (-)
Blue
Zener
diode
Reed
switch
Surge
absorber
Choke coil
Surge
absorber
Reed
switch
OUT (-)
Blue
OUT (+)
Brown
D
-
B64

D#ZZ-TF223-002EN
Page 2 of 2
4 Installation (continued)
4.5 Wiring
1) Avoid repeatedly bending or stressing lead wires.
Broken lead wires can result from wiring layouts which repeatedly
apply bending stress or stretching force to the lead wires.
2) Be sure to connect the load before power is applied.
If the power is turned ON when an auto switch is not connected to a
load, the switch will be instantly damaged due to excess current.
3) Confirm proper insulation of wiring.
Check 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.
4) Do not route wiring with power lines or high voltage lines.
Avoid parallel wiring or wiring in the same conduit with these lines.
Control circuits containing auto switches may malfunction due to noise.
5) Do not allow short circuit of loads.
If power is turned ON with a load in a short circuit condition, the switch
will be instantly damaged due to excess current flow.
6) Avoid incorrect wiring
An auto switch with indicator light has polarity. The brown [red] lead
wire is (+), and the blue [black] lead wire is (–).
If connections are reversed, the switch will operate, however, the LED
will not light up. Also note that a current greater than that specified will
damage the LED and it will no longer operate.
4.5.1 Wiring diagram
4 Installation (continued)
4.6 Environment
Warning
•Do not use in an environment where oil, corrosive gases, chemicals,
salt water or steam are present.
•Do not install in a location subject to vibration or impact in excess of
the product specifications.
•Do not mount in a location exposed to radiant heat that would result in
temperatures in excess of the product specification.
•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.
•Do not use in an environment with temperature cycles.
•Avoid accumulation of iron waste or close contact with magnetic
substances. A large amount of accumulated iron waste such as
machining chips or spatter may cause the auto switch to malfunction.
5 How to Order
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for How to order information.
6 Outline dimensions
Refer to the catalogue or operation manual on the SMC website (URL:
https// www.smcworld.com ) for outline dimensions.
7 Maintenance
7.1 General Maintenance
Caution
•Not following proper maintenance procedures could cause the product
to malfunction and lead to equipment damage.
•If handled improperly, compressed air can be dangerous.
•Maintenance of pneumatic systems should be performed only by
qualified personnel.
•Before performing maintenance, turn off the power supply and be sure
to cut off the supply pressure. Confirm that the air is released to
atmosphere.
•After installation and maintenance, apply operating pressure and
power to the equipment and perform appropriate functional and
leakage tests to make sure the equipment is installed correctly.
•If any electrical connections are disturbed during maintenance, ensure
they are reconnected correctly and safety checks are carried out as
required to ensure continued compliance with applicable national
regulations.
•Do not make any modification to the product.
•Do not disassemble the product, unless required by installation or
maintenance instructions.
•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, re-tighten 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.
8 Troubleshooting
When detection failure occurs check the switch according to the chart
9 Limitations of Use
9.1 Limited warranty and Disclaimer/Compliance Requirements
Refer to Handling Precautions for SMC Products.
10 Product disposal
This product should not be disposed of as municipal waste. Check your
local regulations and guidelines to dispose of this product correctly, in
order to reduce the impact on human health and the environment.
11 Contacts
Refer to www.smcworld.com or www.smc.eu for your local
distributor/importer.
URL :
http
s
//
www.smcworld.com
(Global) http
s
//
www.smc
.
eu
(Europe)
SMC Corporation, Akihabara UDX15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101 0021
Specifications are subject to change without prior notice from the manufacturer.
© 2021 SMC Corporation All Rights Reserved.
Template DKP50047-F-085M
Stays ON
(sometimes stays ON)
Lamp lights up
Stays OFF
(sometimes stays OFF)
Lamp does not light up
Problem
Output Normal,
Lamp does not light up
Check Wiring (output)
Normal
Normal
Normal
Normal Abnormal
Abnormal
Abnormal
Replace the auto switch
Check operating
environment,
Load specification
Abnormal
Abnormal
Check Wiring (output)
Check operating environment,
Load specification and Wire length
Normal
(A) (B) (C) (D) (A) (E) (D)
(A) = Auto switch failure
(B) = Replace the actuator. Detectable magnetic field inadequate (or no magnet).
(C) = Correct the wiring, replace the load or replace the auto switch after correcting the wiring.
(D) = After checking the operating environment, replace the auto switch.
(E) = Replace the auto switch after correcting the wiring.
D
-
B53
Resistor LED
Reed
switch
Zener diode
OUT (+)
Brown
OUT (-)
Blue
D-B59W
OUT (+)
Brown
OUT (-)
Blue
Reed switch
Zener
diode
LED
Choke coil
D
-
B54
Resistor LED
Choke coil
OUT (+)
Brown
OUT (-)
Blue
Zener
diode
Reed
switch
Surge
absorber
Choke coil
Surge
absorber
Reed
switch
OUT (-)
Blue
OUT (+)
Brown
D
-
B64