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High-precision Switch
D5A
CSM_D5A_DS_E_2_2
High-precision Switch for Detecting Micron-unit
Displacement
• Ideal for detecting and measuring wear of cutting
tools or for original point of work.
• Ceramic plungers on M5, M8, and slim models for
superior abrasion resistance and resistance to
temperature changes.
• Direct input possible to microprocessors and
programmable controllers.
• A version with screw-type cable connector available
for easy installation and maintenance.
Be sure to read Safety Precautions on page 5 to 6 and Safety
Precautions for All Limit Switches.
Application Examples
Origin Position Control of an X-Y Table
Coaxiality Inspection
Checking Turret Indexing Position
Turret
Motor
D5A
Motor
D5A
D5A
D5A
Origin can be set to a desired
position and the origin position
can be controlled using the D5A.
Set the D5A on the turret indexing position to check if the turret
is engaged properly at the specified position.
The D5A can be mounted on a jig
used for checking deviation to inspect its coaxiality.
Ordering Information
Contact Output Models (NC Contact)
Actuator
Type
Operation
Indicator
Repeat accuracy
1 µm max.
M5
3 µm max.
Pin plunger
None
1 µm max.
M8
3 µm max.
M16
Operating force
OF max.
Cable lead outlet
Lead outlet
Degree of
protection
Length
0.29 N
D5A-1100
0.49 N
Pre-wired
0.49 N
D5A-2100
D5A-2200
1m
0.98 N
2.45 N
D5A-1200
IP40
0.29 N
0.49 N
Model
D5A-3200
D5A-3300
IP67
D5A-7400
Connector
D5A-7403
Solid-state Output Models (PNP Transistor Output)
Actuator
Type
Operation
Indicator
Repeat accuracy
Cable lead outlet
Lead outlet
1 µm max.
Slim
0.49 N
3 µm max.
2.45 N
D5A-3310
Pre-wired
D5A-5310
D5A-7410
Top plunger
Connector
3 µm max.
D5A-5210
1m
Connector
Pre-wired
Provided
Model
D5A-3210
0.98 N
0.98 N
M16
Limit
Degree of
protection
Length
0.49 N
M8
Pin plunger
Operating force
OF max.
3.92 N
Pre-wired
Bevel plunger
Connector
D5A-7413
3m
5m
3m
IP67
D5A-8511
D5A-8512
D5A-8514
5m
D5A-8515
3m
D5A-9511
5m
D5A-9512
3m
D5A-9514
5m
D5A-9515
1
D5A
Specifications
Ratings
Characteristics
Item
Electrical ratings
Degree of protection
M5, M8, M16 Type: 10 mA at 24 VAC
10 mA at 12 VDC
Contact output models
100 mA at 5 to 24 VDC±10%
Leakage current: 0.15 mA max.
Solid-state output models
Residual voltage: 3 V max.
Power consumption: 3 mW max.
D5A-1@, D5A-2@: IP40
Other than the above models: IP67
M5 (D5A-1 @@@ series), M8, slim type:1 μm max.
Repeat accuracy *1
M5 (D5A-2 @@@ series), M16, limit type:3 μm max.
Mechanical 10,000,000 operations min.
Durability *2
Electrical
Engineering Data
Repeat Accuracy Examples (Reference Data)
M5 Type (Contact Output) With
Repeat Accuracy of 1 μm max.
D5A-1@@@ Series
1,000,000 operation min.
(Contact output models: 24 VAC, 10 mA, resistive load, Solid-state output models: 24 VAC,
100 mA, resistive load)
Deviation in electrical
durability after 1,000,000
operations
M5, M8, M16, slim type: 10 μm max.
Operating speed
1 μm/s to 0.5 m/s
Rated frequency
50/60 Hz
Insulation resistance
100 MΩ min. (at 250 VDC) between each terminal and non-current-carrying metal part
Contact resistance
(Initial value) *4
800 mΩ max. (initial) with 1 m cable,
2.4 Ω max. (initial) with 3 m cable,
4 Ω max. (initial) with 5 m cable
Dielectric strength
1,000 VAC, 50/60 Hz for 1 min between each
terminal and non-current-carrying metal part
Vibration
resistance
Shock
resistance
Limit type: 20 μm max.
Malfunction 10 to 55 Hz, 1.5-mm double amplitude
Mechanical 1,000 m/s2 max.
Malfunction 300 m/s2 max.
M5, M8, slim type: ±20 × 10-6/°C max.
Temperature coefficient *3 M16 type: ±40 × 10-6/°C max.
Limit type: ±50 × 10-6/°C max.
Ambient operating
temperature
−20°C to +75°C (with no icing)
Ambient operating humidity
35% to 85%RH
(35% to 95%RH with the seal rubber)
Note: The above figures are initial values.
*1. Contact your OMRON sales representative for measurement conditions of
the repeat accuracy.
*2. Durability values are calculated at an operating temperature of +5°C to +35°C,
and an operating humidity of 40% to 70%RH. Contact your OMRON sales
representative for more detailed information on other operating environments.
*3. The value indicates the operating position change rate for a change of 1°C
in the ambient temperature. The specifications depend on the model.
Contact your OMRON sales representative for details.
*4. Values for contact output models.
Structure and Nomenclature
Structure
Contact Form/Output Circuit Diagram
Seal rubber
(NBR)
Case
Spring
Spring
Nameplate
Contact Output Models
M5, M8, M16 type
(NC)
Note: NO Switches are not available with contact output models.
Bearing
Plunger
Contact
Contactor
Cable
(V-HKCVV)
Solid-state Output Models (PNP Transistor Output)
M8, Slim, M16, Limit type
Load
Brown (White)
Blue (Black)
Load
HIC (hybrid integrated circuit)
An LED current limit resistor is incorporated.
The ZD absorbs surge.
Note: The load may be connected to either the +V or 0 V terminal.
Core wire colors have been changed accompanying changes in
standards. The old core wire colors are given in parentheses.
2
D5A
Dimensions and Operating Characteristics
M5 Type (Contact Output)
D5A-1100 D5A-2100
D5A-1200 D5A-2200
M8 Type (Solid-state Output)
D5A-3210
D5A-3310
0.6
*1 OP
(FP)
8
(Unit: mm)
S-FLEX V-HKCVV
equal level, 3 dia.
2.5 M5 × 0.5 Two conductors
0.08 mm2 1m
0.8
13
3 dia.
1.3 dia.
2 dia.
3.7R
10 dia.
M8 Type (Contact Output)
D5A-3200
D5A-3300
Slim Type (Solid-state Output)
D5A-5210
D5A-5310
S-FLEX V-HKCVV
equal level, 3 dia.
Two conductors
0.08 mm2 1m
0.8
2.5
*1 OP
(FP)
4.85R
8
Ceramic
plunger
4
Seal
rubber
1.2
4
1/8-inch
ultra-hard ball
OP *1
(FP)
S-FLEX V-HKCVV
equal level, 3 dia.
Operation indicator (LED) Two conductors
0.08 mm2 1m
3 dia.
2 dia.
5
4.85R
M8 × 0.5
16.5
Toothed lock washer Two clamping nuts
M16 Type (Contact Output/Solid-state Output)
D5A-7400
D5A-7410
24
Seal rubber
Ceramic
plunger
12
3 dia.
2 dia.
15 dia.
3 dia.
S-FLEX V-HKCVV
Seal
15 dia.
equal level, 3 dia.
rubber
21.5
Ceramic
Two conductors 0.08 mm2 1m
Toothed lock washer Two clamping nuts
plunger
18
Ceramic
plunger Toothed lock washer Two clamping nuts
13
2.5
M8 × 0.5 Operation indicator fiber,
2 dia. (approx. 450 mm)
*1 OP
(FP)
4.85R
4
12±0.2
20
Two, 2.7+0.1
0 dia.
M16 Type (Contact Output/Solid-state Output)
D5A-7403
D5A-7413
(Connector type)
M16 × 0.5 (Length: 28.5)
Nameplate
Operation indicator (LED) *3
8 dia.
Operation indicator (LED) *3
3 dia.
26 dia.
PT
OP
Two clamping nuts
20
S-FLEX V-HKCVV
equal level, 3 dia.
Two conductors
0.08 mm2 1m
37.5
45
Note: 1. The dimensions are the same as the
left model's.
2. Cables with connectors are not sold
separately.
Toothed lock washer
Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
2. Special screw dimensions apply to the case screws (pitch: 0.5 mm). Mounting is not possible with standard tapping. Use the provided special nuts.
Operating
characteristics
Operating force
Pretravel
Overtravel
Movement
Differential
Operating Position
Free Position
Model D5A-1100
*2
D5A-2100
OF max.
0.29 N
PT max.
--OT min.
1.5 mm
5 µm
MD max.
OP *1
(2 mm)
FP
---
D5A-1200
*2
D5A-2200
D5A-3200
*2
D5A-3210
D5A-3300
*2
D5A-3310
0.49 N
--1.5 mm
5 µm
0.49 N
--1.5 mm
5 µm
0.98 N
--1.5 mm
5 µm
(2 mm)
---
(6.5 mm)
---
(6.5 mm)
---
D5A-5210 *2
D5A-5310 *2
D5A-7400, D5A-7410
D5A-7403, D5A-7413
0.49 N
--1.5 mm
5 µm
0.98 N
--1.5 mm
5 µm
2.45 N
1 mm
2 mm
5 µm
10.5±0.4 mm 10.5±0.4 mm
-----
(4.4 mm)
(5 mm)
*1. The operating position of these types is the same as the free position because of high sensitivity (repeat accuracy: 1 µm max.). This does not apply to M16 limit
switch types.
*2. Total movement is 1.9 to 2.1 mm. Set the appropriate stroke (plunging depth) to 1.0 to 1.5 mm from the FP.
*3. Not available in the contact output type.
3
D5A
Limit Type (Solid-state Output)
D5A-8511
D5A-8512
OP
3
PT
Two, M3 × 0.5
Limit Type (Solid-state Output)
D5A-8514
D5A-8515
(Connector type)
Nameplate
Operation indicator (LED)
20±0.2 15 dia. 8 dia.
30 20±0.2
Operation indicator (LED)
Two, 4.2 dia. holes 8 dia. spot facing depth: 5
6
3 dia. 20
20
16
10
S-FLEX V-HKCVV
equal level, 3 dia.
Two conductors
0.08 mm2 3m/5m
5
37.5
45
Limit Type (Solid-state Output)
D5A-9511
D5A-9512
Limit Type (Solid-state Output)
D5A-9514
D5A-9515
(Connector type)
OP
PT
Two, M3 × 0.5
3
Operation indicator (LED)
Two, 4.2 dia. holes 8 dia. spot facing depth: 5
6
Nameplate
30 20±0.2
Note: 1. The dimensions are the same as the
left model's.
2. Cables with connectors are not sold
separately.
Operation indicator (LED)
20±0.2 15 dia. 8 dia.
3 dia. 20
20
16
10
5
37.5
45
S-FLEX V-HKCVV
equal level, 3 dia.
Two conductors
0.08 mm2 3m/5m
Note: 1. The dimensions are the same as the
left model's.
2. Cables with connectors are not sold
separately.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Operating
characteristics
Operating force
Pretravel
Overtravel
Movement Differential
Operating Position
Free Position
Model
OF
PT
OT
MD
OP
FP
max.
max.
min.
max.
D5A-8511, -8514
D5A-8512, -8515
3.93 N
1 mm
5 mm
5 µm
21.0±0.4 mm
(21.8mm)
D5A-9511, -9514
D5A-9512, -9515
3.93 N
1 mm
4 mm
5 µm
15.2±0.4 mm
(15.8mm)
4
D5A
Safety Precautions
Refer to Safety Precautions for All Limit Switches.
Precautions for Correct Use
Handling of Fiber Cable
• Do not pull or impose any force exceeding 29.42 N on the fiber
cable.
• Make sure that the bending radius of the fiber cable is as large as
possible and at least R20 mm.
• The 40-mm portion of the fiber cable on the connector end as
shown below must not be bent.
• When mounting the Switch to a panel, be sure to use the toothed
lock washer attached as an accessory (to M5, M8, and M16 types
only). Use the washer on the panel surface opposite the object to
be detected by the Switch.
Nut
Panel
Object
to be
detected
40 mm min.
Toothed lock washer
R20 mm min.
Connection of Contact Output
• Do not impose compressing loads on the fiber cable.
Load
Fiber cable
12 VDC
10 mA
Nylon clip
D5A
Load
24 VAC
10 mA
D5A
Consideration of polarity is not required.
• The fiber cable can be cut with OMRON’s E39-F4 Cutting Tool.
• Do not impose any force exceeding 29.42 N on the cable, otherwise
the cord may break. Make sure that the bending radius of the cable
is at least 20 mm.
Mounting
• The screw sections of cases for M5, M8, and M16 types have
special dimensions. Do not use the mounting dimensions specified
for standard types.
• For the mounting dimensions, refer to the following figures and
tables.
Type
Contact
output
Size
B (Panel thickness)
5.2±0.1
mm dia.
3 to 10 mm
C
10 mm dia.
(Toothed lock washer)
Type
Size
A Mounting pitch
B
100 mA max.
Brown (White)
Tapping
Mounting hole
5 to 24 VDC
M16
Solid-state
output
16.2±0.1
mm dia.
8.2±0.1 mm dia.
5 to 8
mm
5 to 13
mm
15 mm dia.
10 to 17 mm
26 mm dia.
Slim
Limit
12±0.2 mm
20±0.2 mm
M2.6
M4
2.8 ±0.2
0 mm dia.
4.2 ±0.2
0 mm dia.
• Do not tighten the nut with too much force. Be sure to apply the
torque shown in this table.
Type
• Be sure to connect the load to the power source in series.
• The operating state of the Switch can be checked by the LED
operation indicator (lights when the Switch is in operation)
incorporated in the solid-state output circuit.
• The output residual voltage is approximately 3 V. Therefore,
exercise care when selecting the load and setting the supply
voltage. The residual voltage, however, can be easily calculated
because it is almost constant and is free from the influence of
fluctuation in the load current.
M8
M5
A (Mounting hole)
Connection of Solid-state Output
D5A
Blue (Black)
Note: The lead wire colors of the D5A have been changed in compliance with
the latest applicable JIS standards.
Colors in parentheses are previous ones.
[Example]
(1) In the above circuit, suppose the MY relay rated at 12 VDC is used as the
load. Since the must operate voltage of the relay is 80% or less than the
rated voltage, it is 12 × 0.8 = 9.6 V. The supply voltage, in turn, is 3 + 9.6 =
12.6 V.
Therefore, the relay may not operate with a 12 V power source.
(2) However, if the relay rated at 24 VDC is employed, the must operate voltage
and supply voltage of the relay are respectively 19.2 V and 22.2 V. The relay
therefore can operate with a 24 V power source.
• When a solid-state circuit is turned OFF, leakage current of 0.15
mA (max.) flows, causing some voltages to remain in the load. For
this reason, be sure to check the must release voltage of the load
before using it.
Appropriate tightening torque
M5
0.98 N·m max.
M8
2.94 N·m max.
M16
9.81 N·m max.
Slim
0.29 N·m max. (M2.6 screw)
Limit
1.47 N·m max. (M4 screw)
5
D5A
Series Connection of Switches
Others
The Solid-state Output-type Switches must not be connected in
series. To obtain the same effect as a series connection, form an AND
gate with a relay inserted between the Switch and load.
• Adjust the mounting of the D5A until the stroke of the pin plunger
and top plunger is aligned with the stroke of the operating body.
Special attention should be paid to the ceramic pushbutton unit. It
might be damaged if undue shock is applied.
Load
Brown (White)
Blue (Black)
D5A
Brown (White)
Blue (Black)
D5A
Load
Brown
(White)
Brown
(White)
D5A
D5A
Blue
(Black)
Blue
(Black)
Parallel Connection of Switches
• In principle, two or more D5A's should not be used in an OR
configuration.
Brown (White) Brown (White)
Load
(A)
(B)
D5A
D5A
Blue (Black)
Blue (Black)
• However, they can be connected in parallel provided that both
switches A and B in the above figure do not operate at the same
time and that the load does not have to be kept energized. In this
circuit, however, the leakage current is increased, multiplied by the
number of Switches connected in parallel. Consequently, the
Switch may not release properly. To keep the load energized,
connect a relay to each of the Switches as shown below.
Brown
(White)
Load
Brown
(White)
Blue
(Black)
Blue
(Black)
Connection to Power Source
• Be sure to connect the Switch to the power source via the load. If
directly connected to the power source, the internal elements of the
Switch may be damaged.
• The harder the material for the dog and the more solidly the
mounting base is fitted, the more accurately a minute displacement
is detected.
• When a limit switch type (D5A-8 @@@, D5A-9 @@@) is used, apply
grease to the dog to reduce friction between it and the plunger.
Do not apply grease to pin plungers, otherwise the grease may
stick to the contacts or generate gas that may cause contact
failures.
• Be sure to use dogs made of hard materials for bevel or top
plungers and apply grease to the surface of the dogs. The hardness
(Hv) of a bevel plunger is 2,000 or over, for which it is
recommended that a dog that has an Hv value of 1,000 or less be
used.
• Do not fail to provide a stopper so as to prevent the enclosure of the
D5A from being used as the stoppers.
Dog
Dog
Stopper
Stopper
• Attach an appropriate cover for the protection of the D5A from
machining oil or cuttings. No protective cover is, however, provided
together with the Switch.
• Exercise care that excessive force is not applied to the ceramic
plunger of M5, M8, or slim type.
If the possibility exists that strong shock may be applied to the
plunger when the Switch is being mounted, use a protective cap.
The plunger may not release if it is depressed with too great a force.
Set its stroke by referring to the OT value indicated in Operating
Characteristics.
M5, M8
Slim
Brown (White)
Blue (Black)
• Correctly connect the white and black lead wires to the positive and
negative sides, respectively, of the power source. Although the
D5A will not be damaged even if the polarity is reversed by mistake,
if this happens, the Switch maintains the ON state (i.e., the contact
is kept open) regardless of the presence or absence of the object
to be detected.
• Do not mount the Switch with its nameplate facing downwards (i.e.,
in the direction of gravity), otherwise the oil drain hole will not work
effectively.
Oil drain hole
Switch
Nameplate
Load
Blue
(Black)
Brown
(White)
Always close
circuit
The core wire colors have been changed to meet new standards. Make sure
that the wires are connected correctly.
6
D5A
7
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
 Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
 Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
 Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2012.8
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2012 All Right Reserved.
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