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Keyence GS-P5C5 Instruction Manual

GS-P5C10\ GS-P8C5\ GS-P12C5\ GS-P12C10\ GS-P8C10\ GS-P12C20\ GS-P5CC5\ GS-P5CC10\ GS-P8CC1\ GS-10PC\ GS-P8CC5\ GS-P8CC10\ GS-11P5\ GS-11N5\ GS-11N10\ GS-11P10\ GS-11PC\ GS-13P5\ GS-13PC

Made by: Keyence
Type: Instruction Manual
Category: Switch
Pages: 10
Size: 0.86 MB

 

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1

E GS (Non-contact) IM

Safety Interlocking
Switch

GS 

(Non-contact)

Instruction Manual

This manual explains items such as the handling, operation, and precautions 

for the Safety Interlocking Switch GS (Non-contact). Read this manual 

carefully and thoroughly understand its contents to use the GS (Non-contact) 

to the full extent of its capabilities.

Also, keep this manual in a safe place for future reference.

Ensure that the end user of this product receives this manual.

This manual is the original instruction manual. 

Symbols

Important

It indicates cautions and limitations that must be followed 

during operation.

Point

It indicates additional information on proper operation.

Reference

It indicates tips for better understanding or useful information.

Safety Precautions

„

General precautions

Important

When disposing the GS (Non-contact), always follow the 

applicable requirements of the laws, rules, regulations and 

standards in the country or region where the GS (Non-

contact) is used.

Dispose of this product as industrial waste.

„

Environment of use

„

Target machines for installation

„

Circuit design and wiring

Precautions on Regulations and Standards

„

CE Marking

KEYENCE Corporation has confirmed that this product complies with the 

essential requirements of the applicable EU Directive(s), based on the 

following specifications. Be sure to consider the following specifications when 

using this product in the Member States of European Union.

Machinery Directive

RE Directive

The GS (Non-contact) is a safety component defined in the EU Machinery 

Directive Annex V and has been certified by TÜV SÜD Product Service 

GmbH. The GS (Non-contact) complies with the following EN Standards.

EN 61508

EN 62061

EN ISO13849-1

EN ISO14119

EN 60947-5-3

EN300 330 

The full text of the EU declaration of conformity is available at the following 

internet address: http://www.keyence.com/cedoc

Frequency band of operation 123kHz

Maximum radio-frequency power 60 dB

μ

V/m

These specifications do not give any guarantee that the end-product with this 

product incorporated complies with the essential requirements of RE and 

Machinery Directive. The manufacturer of the end-product is solely 

responsible for the compliance on the end-product itself according to these 

Directives.

„

CSA Certificate and North American Regulations

The GS (Non-contact) complies with the following UL and CSA standards and 

regulations, and has received CSA certification.

Detailed information and use of the GS (Non-contact) is also described in 

the "GS (Non-contact) User's manual". In order to acquire the "GS (Non-

contact) User's manual", download it from the KEYENCE website or call the 

nearest KEYENCE office.

<KEYENCE website> www.keyence.com/global.jsp

DANGER

It indicates a hazardous situation which, if not avoided, will 

result in death or serious injury.

NOTICE

It indicates a situation which, if not avoided, could result in 

product damage as well as property damage.

DANGER

KEYENCE does not guarantee the function or performance 

of the GS (Non-contact) if it is used in a manner that differs 

from the GS (Non-contact) specifications contained in this 

manual or if the GS (Non-contact) is modified by the 

customer.

The GS (Non-contact) can only be used in combination with 

dedicated actuators. It cannot be used in combination with 

other actuators or similar devices.

Do not bypass the GS (Non-contact), remove it or change its 

installation orientation after installation.

Do not use a replacement actuator to bypass the GS (Non-

contact). Store replacement actuators strictly to prevent 

their easy access.

When using the GS (Non-contact) to protect machine 

operators against a hazard or hazardous zone or when 

using the GS (Non-contact) as a safety component for any 

purpose, always follow the applicable requirements of the 

laws, rules, regulations and standards in the country or 

region where the GS (Non-contact) is used. For such 

regulations, you should directly contact the regulatory 

agency responsible for occupational safety and health in 

your country or region.

Depending on the type of machine on which the GS (Non-

contact) is installed, there may be special safety regulations 

related to the use, installation, maintenance, and operation 

of the safety component. In such a case, you must fulfill 

such safety regulations. The responsible personnel must 

install the GS (Non-contact) in strict compliance with such 

safety regulations.

The responsible personnel must do the training to the 

assigned personnel for the correct use, installation, 

maintenance, and operation of the GS (Non-contact).

The user of the machine must receive specialized training 

related to the GS (Non-contact), and must then understand 

and adhere to the safety restrictions, laws, and regulations 

in the country or area in which the GS (Non-contact) is 

being used.

If the GS (Non-contact) does not operate correctly, the user 

of the machine must report this information to the party 

responsible for the use of the GS (Non-contact) and 

immediately stop the machine.

96M15311

DANGER

The GS (Non-contact) is designed with the assumption that 

it would be correctly installed in accordance with the 

installation procedures described in this manual and 

correctly operated according to the instructions in this 

manual. You must perform an appropriate installation of the 

GS (Non-contact) after performing a sufficient risk 

assessment for the target machine.

Be sure to absolutely confirm that there is nobody in the 

hazardous zone, before you remove the GS (Non-contact) 

from the machine for replacement or disposal.

DANGER

Do not use the GS (Non-contact) in an environment 

(temperature, humidity, interfering light, etc.) that does not 

conform to the specifications contained in this manual.

Do not use a device that emits strong electromagnetic 

waves near the GS (Non-contact).

This product is not intended for use as an explosion-proof 

product. Do not use this product in a hazardous location 

and/or potentially explosive atmosphere.

Do not use the GS (Non-contact) in the presence of 

substances, such as heavy smoke, particulate matter, or 

corrosive chemical agents, that may induce deterioration in 

product quality.

Be sure to absolutely confirm that there is nobody in the 

hazardous zone, before the interlock is released (i.e. the 

machine system restarts) by the interlock reset mechanism.

Indoor use only.

DANGER

It must be possible to perform an emergency stop on the 

machine to which the GS (Non-contact) is installed at any 

and all operation points during the operation cycle. Also, do 

not use the GS (Non-contact) on machines that have 

irregular stop times.

Do not use the GS (Non-contact) to control (stop forward 

motion, etc.) trains, cars and other transportation vehicles, 

aircraft, equipment for use in space, medical devices, or 

nuclear power generation systems.

DANGER

Be sure to turn the power supply off before performing 

electrical wiring.

Perform electrical wiring according to the electrical 

conventions, restrictions, standards, and laws in the 

country or area in which the GS (Non-contact) will be used.

Use cables with length less than or equal to the 

specification in this manual. Usage of cables longer than 

the specified value may cause the improper operation of 

safety functions and may cause a dangerous situation.


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2

E GS (Non-contact) IM

Applicable standards:

CAN/CSA C22.2 No. 61010-1

UL61010-1

Be sure to consider the following specifications when using this product as a 

product certified by CSA.

Overvoltage category II

Pollution degree 3.

Install this product at the altitude of 2000 m or less.

Indoor use only.

When using this product, use the following power supply. CSA or UL 

certified power supply that provides Class 2 output as defined in the CEC 

(Canadian Electrical Code) and NEC (National Electrical Code)

Applicable standard:

FCC Part15 Subpart B, Class A Digital Device

FCC Part15 Subpart C

ICES-003, Class A Digital Apparatus

RSS-210

This device complies with part 15 of FCC Rules and Innovation, Science and 

Economic Development Canada's licence-exempt RSSs. Operation is subject 

to the following two conditions: (1) this device may not cause harmful 

interference, and (2) this device must accept any interference received, 

including interference that may cause undesired operation.

Le présent appareil est conforme à la partie 15 des règles de la FCC et aux 

normes des CNR d’Innovation, Sciences et Développement économique 

Canada applicables aux appareils radio exempts de licence. L’exploitation 

est autorisée aux deux conditions suivantes : (1)l’appareil ne doit pas 

produire de brouillage, et (2) l’appareil doit accepter tout brouillage subi, 

même si le brouillage est susceptible d’en compromettre le fonctionnement.
FCC CAUTION

Changes or modifications not expressly approved by the party responsible 

for compliance could void the user’s authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for 

a Class A digital device, pursuant to part 15 of the FCC Rules. These limits 

are designed to provide reasonable protection against harmful interference 

when the equipment is operated in a commercial environment. This 

equipment generates, uses, and can radiate radio frequency energy and, if 

not installed and used in accordance with the instruction manual, may cause 

harmful interference to radio communications. Operation of this equipment in 

a residential area is likely to cause harmful interference in which case the user 

will be required to correct the interference at his own expense.

Chapter 1 Before Operation

1-1

Overview and Configuration

The GS (Non-contact) is a Type4 Interlocking Device without guard lock 

based on ISO14119.

Coding level: Low or high (switchable)

“4-6 Coding Level” (page 6)

By combining the GS (Non-contact) with a door or similar movable safety 

guard and with a safety-related control system, it is possible to stop 

hazardous machine operations if the door or similar part opens during 

hazardous machine operations.

Reference

The GS (Non-contact) can also be used for other purposes such 
as protecting manufacturing processes.

1-2

Product List

„

Main unit

For details on the main unit models, see 

“5-1 Model Number Description” 

(page 7).

„

M12 connector type cables

z

Standard cables

Use this cable in combination with a main unit (connector type), Y-shaped

connector, or extension cable.

z

Extension cables

„

Mounting brackets

GS-B01

GS-B11

„

Optional parts

z

Y-shaped connector

GS-Y01

z

End connector

GS-Y02

z

Replacement actuator

GS-A01

1-3

Package Contents

„

Main unit

Sensor (main unit)

Actuator

Instruction Manual

Highly visible 

indicator

Detailed indicator

Main unit

Actuator

Type

Model

Number of pins

Length

Simple 

function

GS-P5C5

5

5 m

GS-P5C10

10 m

Standard

GS-P8C5

8

5 m

GS-P8C10

10 m

Advanced 

function

GS-P12C5

12

5 m

GS-P12C10

10 m

GS-P12C20

20 m

Type

Model

Number of pins

Length

Simple 

function

GS-P5CC5

5

5 m

GS-P5CC10

10 m

Standard

GS-P8CC1

8

1 m

GS-P8CC5

5 m

GS-P8CC10

10 m


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3

E GS (Non-contact) IM

Chapter 2 Installation

2-1

Installation Conditions

Note the following items before installation.

„

The effect of surrounding metal

„

Sensor and actuator orientation

Correct installation orientations

Incorrect installation orientations

„

Operating area

„

Mutual interference

When using multiple GS (Non-contact) units in close proximity, they may 

malfunction due to mutual interference. To prevent mutual interference, install 

the GS (Non-contact) units as shown below.

Distance between sensors

Distance between actuators

DANGER

The sensor’s operating distance may be affected by the 

presence of metal in the surrounding area. After installation, 

check that an appropriate safety distance based on the 

detecting distance is used.

DANGER

The above values indicate the recommended distance. 

Check whether there are issues in the actual installation 

environment.

When installing the unit on a sliding door, do so at a distance 

of 6 mm or more to prevent the effect of the side lobe.

From the front

From the side

Reverse orientation

Y

Z

X

Y

X

Y

Z

Y

Z

0

4

8

12

16

10

-10

-20

-30

20

30

Y

X

0

16

4

8

12

-25 -20 -15 -10 -5

25

5

10 15 20

4

0

-4

-8

-12

-16

-20

-24

-28

8

12

16

20

24

28

4

8 12 16

4

8

12

-30

-27

-24

-21

-18

-15

-12

-9

-6

-3

0

3

6

9

12

15

Y

Z

X

ON area

Front installation

Side installation

60 mm or more

50 mm or more

60 mm or more


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4

E GS (Non-contact) IM

2-2

Installation Method

„

Installing the unit to a hinged door

1

2

Reference

When replacing the sensor or actuator, do so by following the 
same procedure.

The appropriate screws must be purchased separately.

2-3

Cascade Connection Between Units

Multiple GS (Non-contact) and GS (Lock) units can be connected in series (in 

a cascade connection).

This makes it possible to monitor the opening and closing of multiple doors or 

similar items on the same machine.

For the wiring method, see 

“Cascade connection wiring example” (page 

5).

Chapter 3 Wiring

3-1

Power Supply

If the power supply for the GS (Non-contact) is the converting type, the power 

supply for the GS (Non-contact) must meet the conditions listed below in 

order to meet the requirements specified in ISO 14119, IEC 60947-5-3, UL 

61010-1, and CAN/CSA-C22.2 No. 61010-1.

(a) The rated output voltage is within 24 V DC ±20 % (Ripple P-P 10 % or 

less, Class2, SELV, Overvoltage category II).

(b)  The insulation between the primary and secondary circuits is reinforced or 

double insulation.

(c) The power supply complies with the laws, regulations, and standards 

related to items such as electrical safety and electromagnetic 

compatibility (EMC) in the country or area in which the GS (Non-contact) 

will be used.

Important

When the power supply used with the GS (Non-contact) is 

shared with other machines or electrical products, the voltage 

supplied to the GS (Non-contact) may drop due to temporary 

increases in the current consumption of these other machines 

and the GS (Non-contact) may also be affected by the noise 

generated by these other machines. Errors or other such 

problems may occur with the GS (Non-contact) in this 

situation, so it is strongly recommended to avoid sharing the 

power supply of the GS (Non-contact) with other machines or 

electrical products.

3-2

Cable Wire Colors and Functions

Simple function type (M12 connector, 5 pins)

Standard type (loose wires or M12 connector, 8 pins)

Advanced function type (loose wires or M12 connector, 12 pins)

*1

This is not present on loose wire types.

„

Pin layout (sensor main unit, M12 connector type)

DANGER

To minimize defeat possibilities, GS (Non-contact) should 

be installed in a position where the accessibility to GS 

(Non-contact) is prevented (e.g. mounting out of reach, 

physical obstruction or shielding or mounting in hidden 

position), otherwise use non-detachable fixing to prevent 

dismantling or de-positioning of GS (Non-contact) (e.g. 

Using a flat head screw and plugging the slot on the screw 

head with a high-strength threadlocker after tightening the 

screw or other equivalent fixing system).

Refer ISO 14119 for more information to minimize defeat 

possibilities.

Securely tighten the screws for the sensor, actuator, and 

mounting brackets according to the specified tightening 

torque.

To prevent self-loosening, use screw locker on the screws 

fixing the GS (Non-contact).

M4 screw

Tightening torque: 1.0 N

m

M4 screw

Tightening torque: 1.0 N

m

Pin number

Wire color

Function

1

Brown

+24 V

2

White

OSSD2

3

Blue

0  V

4

Black

OSSD1

5

Gray

AUX output1

Pin number

Wire color

Function

1

Gray

AUX output1

2

Brown

+24 V

3

Light blue

Not used

4

Red/white

Safety input 2

5

Black

OSSD1

6

White

OSSD2

7

Blue

0  V

8

Red/black

Safety input 1

Pin number

Wire color

Function

1

Brown

+24 V

2

Red/black

Safety input 1

3

Blue

0  V

4

Black

OSSD1

5

Gray

AUX output 1

6

Red/white

Safety input 2

7

White

OSSD2

8

Pink

Interlock/EDM selection input

9

Gray/black

*1

Not used

10

Light blue

*1

Not used

11

Yellow

Reset/EDM input

12

Light blue/black

*1

Not used

Simple function

(M12, 5 pins, male)

Standard type

(M12, 8 pins, male)

Advanced function type

(M12, 12 pins, male)

1

2

3

5

4

2

3

4

8

5

6

7

1

10

6

1

9

3

4

5

7

8

12

11

2


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5

E GS (Non-contact) IM

3-3

Wiring Example

„

Cascade connection wiring example

Wire the safety inputs of a GS (Non-contact) to the OSSDs of the next GS 

(Non-contact) or GS (Non-contact) to implement a cascade connection.

“4-1 OSSD” (page 5)

“4-2 Safety Input” (page 6)

„

Cable length and number of connected units (Standard)

Contact KEYENCE for the maximum number of connected units when using a 

cascade connection that also includes GS (Lock) units.

3-4

I/O Circuit Diagrams

Chapter 4 Functions

The functions that can be used with the GS (Non-contact) vary depending on 

the model of the main unit (simple function type/standard type/advanced 

function type).

*1 The loose wire type has nine cores.

4-1

OSSD

An OSSD output is a safety output for the safety-related part of a machine 

control system.

OSSD 1/2 is a pair of safety outputs that are redundant.

The GS (Non-contact) generates self-diagnosis signals on its internal control 

circuit to perform diagnostics on the OSSD. These signals periodically force the 

OSSD into a temporary OFF-state when the OSSD is in the ON-state.

If the internal control circuit receives a feed-back signal (OFF-signal) based on 

the self-diagnosis, the GS (Non-contact) determines that its OSSD is operating 

normally. If the OFF-signal is not returned to the internal control circuit, the GS 

(Non-contact) determines that there is a problem with the OSSD or wiring and 

goes to an error state.

„

OSSD operation

The OSSDs go to OFF state:

During startup, in the error state, when switching the coding level

When all the conditions shown below are met during normal operation, the 

OSSDs go to ON state. (*1)

The sensor has detected an actuator.

Safety inputs are ON.

*1: The OSSDs go to OFF state in the interlock reset ready state.

A: Maximum cable length

30.3 m

B: Maximum number of connected units

30

Output circuit (PNP type)

Output circuit (NPN type)

Input circuit (PNP type)

Input circuit (NPN type)

4: Black (OSSD1)

7: White (OSSD2)

11: Yellow (reset/EDM input)

8: Pink (interlock/EDM selection input) 

1: Brown (+24 V)

3: Blue (0 V)

5: Gray (AUX output 1)

2: Red/black (safety input 1)

6: Red/white (safety input 2)

4: Black (OSSD1)

7: White (OSSD2)

11: Yellow (reset/EDM input)

8: Pink (interlock/EDM selection input) 

1: Brown (+24 V)

3: Blue (0 V)

5: Gray (AUX output 1)

2: Red/black (safety input 1)

6: Red/white (safety input 2)

K1

K2

K2

K1

S1-1

General-purpose PLC

K1

K2

K1, K2: External device (force guided relay, magnet 

connector, etc.)

S1-1: Reset switch (N.O.)

1st unit
GS (Non-contact)
PNP output
Advanced function type

Interlock: Manual
EDM: Use
Cascade connection: Yes

2nd unit
GS (Non-contact)
PNP output
Advanced function type

Interlock: Automatic
EDM: Do not use
Cascade connection: No

Black or white

Blue

+24

 

V

0 V

Exter

nal de

vice

Main

circuit

Brown 

Brown 

Black or white

Blue

+24 V

0 V

Exter

nal de

vice

Main

circuit

Brown 

(Input wire)

Blue

+24 V

Main

circuit

0 V

Brown 

(Input wire)

Blue

+24 V

0 V

Main

circuit

AUX output circuit (PNP/NPN common)

Simple function 

type

Standard type

Advanced 

function type

Number of pins

5

8

12 (*1)

OSSD

3

3

3

Safety input

3

3

Interlock function

3

EDM function

3

Number of AUX outputs

1

1

1

Coding level switching

3

3

3

DANGER

For the wiring to a safety-related machine control system, 

the output of both OSSD 1 and OSSD 2 must be used by the 

safety-related machine control system in order to create a 

safety system.

If only one OSSD output is used to construct the machine’s 

control system, an OSSD malfunction will make it 

impossible to stop the machine, which may lead to 

extremely dangerous situations including serious injury to 

or death of the machine’s user.

When using a PNP sensor, do not cause a short-circuit 

between the OSSD and +24V. Otherwise, the OSSDs will 

stay in the ON-state and it will cause a dangerous situation.

When using a PNP sensor, be sure to connect the load 

between the OSSD and 0 V. Connecting this between the 

OSSD and +24 V by mistake will invert the OSSD operation 

from its normal behavior, which is extremely dangerous.

When using an NPN sensor, do not cause a short-circuit 

between the OSSDs and 0V. Otherwise, the OSSDs stay in 

the ON-state and it will cause a dangerous situation.

When using an NPN sensor, be sure to connect the load 

between the OSSD and +24 V. Connecting this between the 

OSSD and 0 V by mistake will invert the OSSD operation 

from its normal behavior, which is extremely dangerous.

To prevent malfunctions caused by ground faults on the 

OSSD output wire, perform wiring in a manner such that the 

requirements specified in paragraph 9.4.3 of IEC 60204-1 

are met.

Brown 

(Output 
wire)

Blue

+24 V

0 V

Input 
device

Main

circuit


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6

E GS (Non-contact) IM

4-2

Safety Input

 

This function controls the OSSDs of the GS (Non-contact) with input signals 

from sensors or similar devices connected to the safety inputs.

Safety input 1 and safety input 2 form a safety input pair. If safety input 1 or 

safety input 2 turns OFF, the OSSDs turn OFF.

Multiple GS units can be connected and used in an expanded system (with a 
cascade connection) by connecting the OSSDs of a different GS (Non-
contact) or GS (Lock) to the safety inputs. The system can be expanded to 
include up to thirty units in the case of the GS (Non-contact).

Point

The simple function type has no safety input.

Reference

Wire the safety inputs as shown below when they are not in use.

PNP type: Short circuit to 24 V.

NPN type: Short circuit to 0 V.

If safety input 1 and safety input 2 are mismatched for 3 

seconds or more a Safety Input Error will occur.

„

Emergency stop switch/button wiring

Wiring an emergency stop switch/button to the safety inputs makes it 

possible to perform an emergency stop on the machine by pressing the 

emergency stop switch/button.

4-3

Interlock Function

Interlock is a function that prevents the OSSDs from automatically going into 

the ON-state from the OFF-state. This prevents the unintended start-up and/or 

the unintended restart of the machine if the interlock is applied to the GS 

(Non-contact). It is necessary to perform the reset operation in order for the 

GS (Non-contact) to go back to normal operation from the interlock condition.

Point

The interlock function cannot be set on the simple function 

type and standard type. The interlock function is fixed to 

Automatic.

On the advanced function type, the interlock function setting can be selected 

from two types: Automatic and Manual.

Automatic and Manual indicate the following operations.

Automatic:

The OSSDs immediately switches to the ON state when the conditions for 

doing so-such as the door closed-are met.

Manual:

Even if the conditions for switching the OSSDs to the ON state are met, the 

OSSDs maintain the OFF state (interlock state).

<Terminating the interlock state>

To set the OSSDs to the ON state and to start the machine, close the door to 

which the GS (Non-contact) has been installed and perform the reset 

operation after the preparations for starting the machine are complete. This 

sets the OSSDs to the ON state and terminates the interlock state.

„

Interlock function settings

Use the wiring to configure the settings. The wiring method varies depending 
on whether the 

 “4-4 EDM Function” (page 6) is used.

4-4

EDM Function

The GS (Non-contact) can monitor the state of external devices, such as a 

safety relay or contactors that are connected to the OSSDs, in order to detect 

the failure of the external device. This monitoring function is called the EDM 

function.

„

EDM function settings

Use the wiring to configure the settings. The wiring varies depending on 
whether the interlock function is used. For details, see 

“4-3 Interlock 

Function” (page 6).

4-5

AUX Output

This is an informational output used to check the operating status of the GS 

(Non-contact). 

4-6

Coding Level

The GS (Non-contact) has two coding levels.

DANGER

Use an emergency stop switch/button that has two or more 

independent, NC (normally closed) contacts. For the 

requirements related to emergency stop switches, see IEC 

60204-1, ISO 13850, and all other requirements, regulations, 

standards, and laws related to occupational safety and 

health in the country or area where the GS (Non-contact) 

will be used. For such regulations, you should directly 

contact the regulatory agency responsible for occupational 

safety and health in your country or region.

Ensure that the device does not start or restart automatically 

when the emergency stop switch/button is reset.

Only the devices shown below can be connected to the 

safety inputs. Do not connect any other devices.

GS (Non-contact) OSSDs, GS (Non-contact) OSSDs, and 

emergency stop switch/button

When using a PNP sensor, please connect the OSSDs of the 

PNP type GS (Lock) or GS (Non-contact) to the safety 

inputs.

When using a NPN sensor, plesae connect the OSSDs of the 

NPN type GS (Lock) or GS (Non-contact) to the safety 

inputs.

Interlock

function

EDM 

function

Reset/EDM input

Interlock/

EDM function selection input

Automatic Do not use 0 V

0 V

Automatic Use

Connected to 24 V via a relay 

NC contact

Open

Manual

Do not use Connected to 24 V via an NO 

reset switch

Connected to 24 V

Manual

Use

Connected to 24 V via an NO 

reset switch and a relay NC 

contact

Connected to 24 V

Standard type

Advanced function type

Advanced function type

DANGER

Be sure to absolutely confirm that there is nobody in the 

hazardous zone before the interlock condition is terminated 

(i.e. the machine system restarts) by the interlock reset 

mechanism.

Install the switch, etc. for releasing the interlock state in a 

position where it is possible to check the entirety of the 

hazardous zone and where the switch, etc. cannot be 

operated from within the hazardous zone.

When the interlock function is set to Automatic, it is 

necessary to ensure the safety of the entire control system in 

order to prevent unexpected starts from occurring.

Exercise caution to prevent the reset/EDM input from 

forming a short circuit with other inputs or outputs.

DANGER

The AUX outputs cannot be used as the safety outputs to a 

safety-related control system.

Coding level: Low 

(multi operation)

Any actuator is detected when it enters the range of 
the operating distance from the sensor. (Initial setting)

Coding level: High 

(unique operation)

Only the specific actuator that the sensor has been 
taught to detect is detected when it enters the range of 
the operating distance from the sensor. The sensor 
does not respond if an actuator other than the actuator 
that it has been taught to detect is within the range of 
the operating distance.

Advanced function type


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7

E GS (Non-contact) IM

Chapter 5 Specifications

5-1

Model Number Description

Main unit

Cable

5-2

Specifications

„

Specifications

*1 Risk time according to IEC60947-5-3 is 150 ms + 2 ms × (number of cascaded units - 1).
*2 When AUX outputs of each unit are not used, it is possible to cascade up to 10 units.
*3 When stored for a long period of time, please store it at temperature of  55°C or lower.

„

Safety-related parameters

„

PFH (IEC 61508)

GS

-

1

1

P

*

5

Cable length

C: M12 connector, 

Blank: Loose wires

P: PNP, N: NPN

0: Simple function, 1: Standard, 3: Advanced function

1: Non-contact

* only necessary when using 

loose wire connection

GS

-

P

5

C

5

Cable length

C: Standard cable

CC: Extension cable

5: 5 pins (simple function)

8: 8 pins (standard)

12: 12 pins (advanced function)

Model

GS-

10PC

GS-

11P5

GS-

11N5

GS-

11P10

GS-

11N10

GS-

11PC

GS-

13P5

GS-

13PC

Type

Simple 

function 

type

Standard type

Advanced 

function type

Output type

PNP

PNP

NPN

PNP

NPN

PNP

PNP

PNP

Operating 

distance

Front

Sao (OFF 

 ON)

10 mm

Sar (ON 

 

OFF)

18 mm

Side

Sao (OFF 

 ON)

6 mm

Sar (ON 

 

OFF)

14 mm

Response 

time (ms)

*1

Detection

Detect 

 

Not detect

20 ms + 2 ms × (number of cascaded unit - 1)

Not detect 

 Detect

30 ms + 25 ms × (number of cascaded unit - 1)

Door 

operation

Acceptable operation 

frequency

3 Hz

Cascading

Standard

-

Max. 30 units

Using Y-shaped 

connector

-

Max. 4 

units 

*2

-

Control 

output 

(OSSD 

output)

Output

Transistor outputs × 2

Max. load current

PNP: Max. 150 mA, NPN: Max. 100 mA

Residual voltage 

(during ON)

Max 2.5 V (with a cable length of 5 m)

OFF state voltage

Max 2.0 V (with a cable length of 5 m)

Leakage current

Max. 500 

μ

A

Max. capacitive load

2.2 

μ

F

Load wiring resistance

Max. 2.5 

Ω

AUX 

(Non-

safety-

related 

output)

Output

Transistor output

Number of output

1

Max. load current

50 mA

Residual voltage 

(during ON)

Max 2.5 V (with a cable length of 5 m)

External 

input

(Short-

circuit 

current)

Safety input

-

Approx. 1.5 mA × 2

Reset/EDM input

-

Approx. 5.0 mA 

× 1

Power 

supply

Power voltage

24 V DC ±20 % (Ripple P-P 10 % or less, Class2)

Power consumption

0.8 W

Protection circuit

Reverse current protection, short-circuit protection and surge 

protection for each output

Environment

al resistance

Enclosure rating

IP65/67(IEC60529), IP69K(ISO20653) (TÜV SÜD certified)

Enclosure Type 3/4X/12/13 (NEMA250)

Operating ambient 

temperature

-20°C to +55°C (No freezing)

Storage temperature

-25°C to +70°C (No freezing) 

*3

Operating relative 

humidity

5% to 95%RH

Storage relative 

humidity

5% to 95%RH

Vibration resistance

10 to 55 Hz, Double amplitude 3.0 mm, 

5 minutes in each of the X, Y, and Z directions (IEC 60947-5-3)

Shock resistance

30 G in X, Y, Z directions 6 times each axis (IEC 60947-5-3)

Material

Sensor 

main unit

Case

Zinc die cast  (Nickel chrome plating), PBT, PAR

Cable

PVC

Actuator

Case

SUS430, SUS304, PBT

Weight

Approx. 

80 g

Approx. 270 g

Approx. 480 g Approx. 

80 g

Approx. 

280 g

Approx. 

80 g

Mission time

20 years

Hardware fault tolerance

1

Type of element

B

Performance level

e

Category

4

SIL

3

Interlocking function

4.78×10

-10


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8

E GS (Non-contact) IM

Chapter 6 Appendix

6-1

Indicator Descriptions

(1) Highly visible indicator

(2) OSSD indicator

(3) INPUT READY indicator

6-2

Dimensions

„

Direct mounting

Sensor main unit

Actuator

6-3

Troubleshooting

If the operation of the GS (Non-contact) is abnormal, identify the cause of the 

error and carry out the countermeasures according to the following tables.

„

[A] The OSSD does not turn ON (or turns OFF unexpectedly).

Light 

color

Status

Details

OSSD 

status

Actuator 

detection status

Green

ON

During normal operation.

ON

Detected

Orange

Blinking

(fast)

During operation with the “High” 

coding level, an actuator different 

from the one that was taught was 

detected.

OFF

Incorrect 

actuator 

detected

Error during coding level switching

Uncertain

Blinking

Switching coding level or teaching 

for an actuator

OFF

Uncertain

Red

ON

Door, etc. is open.

OFF

Not detected

Blinking

Error state. The GS (Non-contact) 

has detected an error.

OFF

Uncertain

OFF

-

Power OFF.

OFF

Uncertain

Light 

color

Status

Details

OSSD 

status

Actuator 

detection status

Green

ON

The OSSD is ON.

ON

Detected

Blinking

The OSSD is ON but the state is 

unstable such as the door starting 

to open.

ON

Detected

Red

ON

The OSSD is OFF.

OFF

Uncertain

Light 

color

Status

Details

OSSD 

status

Actuator 

detection status

Yellow

ON

Interlock release wait state (waiting 

for reset input).

OFF

Detected

Blinking

Safety inputs are OFF.

OFF

Uncertain

OFF

-

Other state.

Uncertain Uncertain

OSSD

INPUT 

READY

GS-1
1P5

(1) Highly visible indicator

(2) OSSD indicator

(3) INPUT READY indicator

Possible cause

Confirmation 

method

Countermeasure

The GS (Non-contact) is in the 
error state.

The highly visible 
indicator is blinking 
in red.

Identify the cause of the error and 
implement countermeasures 
according to “Display details when 
an error occurs.”

The actuator is not detected 
correctly.

The highly visible 
indicator is ON in 
red.

Bring the actuator within the 
detection range.

The actuator is broken.

Replace the actuator.

During operation with the 
“High” encoding level, an 
actuator different from the one 
that was taught was detected.

The highly visible 
indicator is blinking 
in orange.

Use the actuator that was taught to 
the unit.

Safety input is not ON.

The INPUT READY 
indicator is blinking 
in yellow.

Turn ON the safety input.

The unit is in the interlock 
reset ready state.

The INPUT READY 
indicator is ON in 
yellow.

Release the interlock state by 
turning the RESET/EDM input ON.

The sensor and actuator are 
at a greater distance than the 
specified operating distance 
Sao (OFF

ON).

-

Check the installation.

The unit is affected by the 
surrounding metal.

-

Check the installation.

The unit is affected by 
interference from other 
sensors.

-

Check the installation.

3 (detection center)

5

38

15

5

30

ø5.2

2-4.2x9.2 through hole
7.4x12.4 depth of counterbore: 
4.2 (both surfaces)

GS-13P5

   9 cores × blue/brown: 

0.22

 mm

2

        Black, gray, red/white, red/black, 
        white, pink, yellow:

0.14

 mm

2

GS-11P5/GS-11N5/GS-11P10/GS-11N10

   8 cores × blue/brown: 

0.22

 mm

2

Black, gray, red/white, red/black,
white, light blue:

0.14

 mm

2

5.9
(detection center)

11.8

48

24

(detection center)

Unit: mm

38

5

7

2-ø4.2 through hole

ø8 depth of 

counterbore:

 4.2

12.5

5.9 (detection center)

11.8

48

Unit: mm


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9

E GS (Non-contact) IM

„

[B] The OSSD does not turn OFF (or turns ON unexpectedly).

„

[C] The OSSD sometimes turns ON and OFF.

„

[D] The connected device repeatedly turns the OSSD ON/OFF 
at high speed (chattering).

„

[E] No indicators light.

6-4

Inspection and Maintenance

Inspect the safety function of the GS (Non-contact) on the basis of the results 

of a risk assessment of the target machine. It is strongly recommended that, 

at minimum, the following items and periods be met.

• Initial inspection

Items

†

The sensor and actuator are installed on the basis of the installation 

conditions, installation methods, and wiring specifications specified in this 

manual.

†

The safety functions being used (“4-1 OSSD” (page 5), “4-2 Safety Input” 

(page 6), “4-3 Interlock Function” (page 6), or “4-4 EDM Function” (page 

6)) operate as intended.

• Periodic inspection

Periods

SIL3/PLe: Once/month or more, SIL2/PLd: Once/year or more (ISO 14119)

Items

†

If an emergency stop switch is connected to the safety input, the safety 

function acts correctly when the emergency stop switch is pressed.

†

There are no changes in the mounting conditions of the sensor and 

actuator or in the doors, etc. to which these devices are installed.

†

The door, etc. is not deformed.

†

There are no changes to the installation status that will affect the results of 

the risk assessment carried out at the start of the installation.

†

The mounting screws and seals (in the case that seals have been applied 

to the manual release) have been applied correctly.

†

No excessive damage or dirt is present.

Especially in the following cases, check the same details as the initial 

inspection.

When a change is made to the installation, wiring, or functions

When the sensor or actuator is replaced

When the equipment is not used for a long period of time

When a defect occurs

Store the inspection results together with the machine’s records.

Errors found on the sensor or actuator cannot be repaired by the customer. 

Replace the product with a new one or contact the nearest KEYENCE office.

Possible cause

Confirmation 

method

Countermeasure

The sensor and actuator are 
at a shorter distance than the 
specified operating distance 
Sar (ON

OFF).

-

Check the installation.

The unit is affected by the 
surrounding metal.

-

Check the installation.

The unit is affected by 
interference from other 
sensors.

-

Check the installation.

The cascade connection 
wiring is incorrect.

The INPUT READY 
indicator is off.

Check the safety input wiring.

Possible cause

Confirmation 

method

Countermeasure

The sensor is subject to noise.

-

Check the noise environment 
around the wiring.

The unit is affected by the 
surrounding metal.

-

Check the installation.

The unit is affected by 
interference from other 
sensors.

-

Check the installation.

The sensor and actuator are 
at a distance between the 
specified operating distance 
Sao (OFF

ON) and Sar (ON

OFF).

-

Check the installation.

Possible cause

Confirmation 

method

Countermeasure

The OSSDs turn OFF 
periodically by the self-
diagnosis function, but the 
connected device may be 
recognizing this short OFF 
signal.

-

Select a device that does not detect 
the OSSD’s periodic OFF signal for 
the connected device.

Possible cause

Confirmation 

method

Countermeasure

The power is off or the power 
supply voltage is insufficient.

Power supply 
voltage or power 
supply wiring

Ensure that the power supply 
voltage is within the range in the 
specifications.
Wire the power supply correctly.

An extension cable or other 
such connector cable is not 
connected correctly.

Connection status 
of connector cables

If necessary, connect the parts 
again.

DANGER

To prevent danger due to the machine starting, thoroughly 

ensure that no one is present in the hazardous zone during 

inspection.

If some error is found on the GS (Non-contact) as a result of 

the inspection, do not operate the machine.


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10

E GS (Non-contact) IM

WARRANTIES AND DISCLAIMERS

(1) KEYENCE warrants the Products to be free of defects in materials and 

workmanship for a period of one (1) year from the date of shipment. If any 
models or samples were shown to Buyer, such models or samples were 
used merely to illustrate the general type and quality of the Products and 
not to represent that the Products would necessarily conform to said 
models or samples. Any Products found to be defective must be shipped to 
KEYENCE with all shipping costs paid by Buyer or offered to KEYENCE 
for inspection and examination. Upon examination by KEYENCE, 
KEYENCE, at its sole option, will refund the purchase price of, or repair or 
replace at no charge any Products found to be defective. This warranty 
does not apply to any defects resulting from any action of Buyer, including 
but not limited to improper installation, improper interfacing, improper 
repair, unauthorized modification, misapplication and mishandling, such as 
exposure to excessive current, heat, coldness, moisture, vibration or 
outdoors air. Components which wear are not warranted.

(2) KEYENCE is pleased to offer suggestions on the use of its various 

Products. They are only suggestions, and it is Buyer’s responsibility to 
ascertain the fitness of the Products for Buyer’s intended use. KEYENCE 
will not be responsible for any damages that may result from the use of the 
Products.

(3) The Products and any samples ("Products/Samples") supplied to Buyer are 

not to be used internally in humans, for human transportation, as safety 
devices or fail-safe systems, unless their written specifications state 
otherwise. Should any Products/Samples be used in such a manner or 
misused in any way, KEYENCE assumes no responsibility, and additionally 
Buyer will indemnify KEYENCE and hold KEYENCE harmless from any 
liability or damage whatsoever arising out of any misuse of the Products/
Samples.

(4) 

OTHER THAN AS STATED HEREIN, THE PRODUCTS/SAMPLES ARE 

PROVIDED WITH NO OTHER WARRANTIES WHATSOEVER. ALL 
EXPRESS, IMPLIED, AND STATUTORY WARRANTIES, INCLUDING, 
WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT 
OF PROPRIETARY RIGHTS, ARE EXPRESSLY DISCLAIMED.
IN NO EVENT SHALL KEYENCE AND ITS AFFILIATED ENTITIES BE 
LIABLE TO ANY PERSON OR ENTITY FOR ANY DIRECT, INDIRECT, 
INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES 
(INCLUDING, WITHOUT LIMITATION, ANY DAMAGES RESULTING 
FROM LOSS OF USE, BUSINESS INTERRUPTION, LOSS OF 
INFORMATION, LOSS OR INACCURACY OF DATA, LOSS OF 
PROFITS, LOSS OF SAVINGS, THE COST OF PROCUREMENT OF 
SUBSTITUTED GOODS, SERVICES OR TECHNOLOGIES, OR FOR 
ANY MATTER ARISING OUT OF OR IN CONNECTION WITH THE USE 
OR INABILITY TO USE THE PRODUCTS, EVEN IF KEYENCE OR ONE 
OF ITS AFFILIATED ENTITIES WAS ADVISED OF A POSSIBLE THIRD 
PARTY’S CLAIM FOR DAMAGES OR ANY OTHER CLAIM AGAINST 
BUYER.

 In some jurisdictions, some of the foregoing warranty disclaimers 

or damage limitations may not apply.

BUYER’S TRANSFER OBLIGATIONS:

If the Products/Samples purchased by Buyer are to be resold or delivered 
to a third party, Buyer must provide such third party with a copy of this 
document, all specifications, manuals, catalogs, leaflets and written 
information provided to Buyer pertaining to the Products/Samples.

E 1101-3

Document Control No. 1477BAE201

Copyright (c) 2018 KEYENCE CORPORATION. All rights reserved.

15311E  1098-1  96M15311  Printed in Japan