background image

(1) Handle with care

     Do not drop G9SE to the ground or expose to excessive vibration or mechanical shocks. G9SE may be damaged

      and may not function properly.

(2) Adhesion of solvent such as alcohol, thinner, trichloroethane or gasoline on the product should be

      avoided. Such solvents make the marking on G9SE illegible and cause deterioration of parts.
(3) Conditions of storage
     Do not store in such conditions stated below.
       1) In direct sunlight
       2) At ambient temperatures out of the range of -10 to 55 

       3) At relative humidity out of the range of 25% to 85% or under such temperature change that causes  

condensation.

       4) At atmospheric pressure out of the range 86 to 106 kPa.
       5) In corrosive or combustible gases
       6) With vibration or mechanical shocks out of the rated values.
       7) Under splashing of water, oil, chemicals
       8) In the atmosphere containing dust, saline or metal powder.
         G9SE may be damaged and may not function properly.

(4) At least 50 mm above top face of G9SE and below bottom face of G9SE should be available to apply rated 

     current to outputs of G9SE and for enough ventilation.

(5) Mounting multiple units

 

 When mounting multiple units close to each other, the rated current will be 3 A. Do not apply a current

     higher than 3 A. If the output current is 3 A or more, make sure that there is a minimum distance of 

     10mm each between all adjacent G9SE units.

(6) DIN rail mounting

      Mount G9SE to DIN rails with attachments (TYPE PFP-M, not incorporated to this product), not to 

     drop out of rails by vibration etc. especially when the length of DIN railing is short compared to the widths of G9SE.

(7) Wire correctly according to   8    Wiring.

(8) Use cables with length less than 100 m to connect to Safety Inputs, Feed-back/Reset inputs, respectively. 

(9) G9SE may malfunction due to electro-magnetic disturbances.  Be sure to connect the negative terminal  of 

     DC power supply to ground. When using a DC power supply with light curtains, use DC power supply 

     which has no interruption by a power failure of 20 ms.

(10)This is a class A product. In residential areas it may cause radio interference, in which case the user may be

     required to take adequate measures to reduce interference.

(11) Do NOT mix AC load and DC load to be switched in the following terminals.

   

- G9SE-201 : between 13-14 terminal and 23-24 terminal

   

- G9SE-401 : between 13-14 terminal and 23-24 terminal, 33-34 terminal and 43-44 terminal

   

- G9SE-221-T

 : between 13-14 terminal and 23-24 terminal, 37-38 terminal and 47-48 terminal

(12) Start entire system after more than 2s have passed since applying supply voltage to G9SE.

(13) Set the time duration of OFF-delay (Type G9SE-221-T

)

     1) Set the time duration of OFF-delay to an appropriate value 

         that does not cause the loss of safety function of system.

     2) Set both of the two Off-delay Time Preset Switches, one each 

         on the front and back, to the same value. When setting the 

         different value, it is detected as a fault.

         After setting, make sure G9SE operating time is correct.

(14) To determine safety distance to hazards, take into account the 

         

delay of Safety outputs caused by the following time:

      1) Response time

      2) Preset  off-delay time and accuracy of off-delay time

(15) Before G9SE outputs become in ON-state, non-regular self-

       diagnosis for Safety output circuit may be executed.

      On this occasion, the operating noise of internal relays occurs.

(16) In the place subjected to strong vibration or shock, mount G9SE

      to a mounting surface with screws and the screw mounting attachment. 

      Otherwise, G9SE may not function properly due to vibration or 

      mechanical shocks out of the rated values caused by sympathetic 

      vibration of G9SE and the mounting parts, and so on.

Appearance and Explanation of Each Parts

3

Ratings and Specifications

4

G9SE-201

G9SE-401

G9SE-221-T

Contact output

250 VAC  5 A       30 VDC  5 A (resistance load)

AC15: 240 VAC 2 A 

DC13: 24 VDC 1.5 A 

Switching specification for

Inductive load (IEC/EN60947-5-1)

Ratings

Specifications and performance

Operating time (OFF to ON state) (See Note2)

100 ms Max. (See Note3)

3 W max.

Type G9SE-221-T

4 W max.

4 W max.

300 m/s

2

Ambient humidity

Surround Air Temperature

Mechanical

shock resistance

(See Note7)

Vibration resistance (See Note7)

25

%

 to 85

%

RH

-10  to 55

 (No freezing or condensation)

Frequency:10 to 55 to 10 Hz   

Amplitude:0.35 mm half amplitude (0.7 mm double amplitude) 

15 ms Max.

1

Rated supply voltage

24 VDC
-15% to 10% of rated supply voltage

Suitability for Use

Omron Companies shall not be responsible for conformity with any standards, codes or regulations
which apply to the combination of the Product in the Buyer’ s application or use of the Product. At
Buyer’ s request, Omron will provide applicable third party certification documents identifying ratings
and limitations of use which apply to the Product. This information by itself is not sufficient for a
complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness
of the particular Product with respect to Buyer’ s application, product or system. Buyer shall take
application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE
HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS
PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL
EQUIPMENT OR SYSTEM.

PNP transistor output    Load current

100 mA DC max.

G9SE-201

G9SE-401

G9SE-221-T

Contact resistance (See Note5)

100 mΩ Max.

Maximum cable length

100 m Max.

Reset input time

250 ms Min. 

Accuracy of OFF-delay time

Within plus or minus 10

%

 of

the set value (See Note4)

Impulse

withstand

voltage

(IEC/EN

60947-5-1)

Insulation resistance

100 MΩ Min.

5,000,000 operations Min. 

Mechanical durability

50,000 operations Min.

Minimum applicable load

Pollution degree

2

Over voltage category (IEC/EN60664-1)

Safety output: Class 

Ⅲ, the others: 

Class 

Ⅱ 

Degree of protection

IP20

Weight

approx. 150 g

approx.180 g

approx.180 g

Note:

(1) Power consumption of loads not included .

(2) This does not include the bounce time of internal relay in the G9SE.

(3) This  is in normal operation. When executing 

non-regular self-diagnosis for Safety output circuit,

    G9SE operating time become 500 ms max..

(4) This is initial value using the voltage-drop method with 1A at 5VDC.   

(5) Use an 8A fuse that conforms to IEC 60127 as a short-circuit protection device. This fuse is not 

    included with the G9SE.

(6) Condition: G9SE is mounted to  

mounting surface with screw and the screw mounting attachment.

    In the case of DIN rail mounting, mount DIN rail with G9SE to the place without big vibration. 

    (Amplitude guideline: Less than 0.15 mm half amplitude (0.3 mm double amplitude))

Conditional short-circuit current

(IEC/EN60947-5-1)

100 A (See Note6)

Preset Switches

 

(only applies to Type G9SE-221-T

)

Change the value of the preset switches only when G9SE is disconnected from power supply.

Function
Presets OFF-delay
time (duplicate)
(*1)

Name
OFF-delayed
time preset
switch

Value
For Type G9SE-221-T05

0(default setting value)/0.1/0.2/0.3/0.4/0.5/0.6/0.7/0.8/1.0/1.5/2.0/2.5/3.0/4.0/5.0(s)(*2) 

For Type G9SE-221-T30 

0(default setting value)/1/2/4/5/6/7/8/9/10/12/14/16/20/25/30(s)(*2)

(*1)Set both of the two Off-delay Time Preset Switches, one each on the front and back, to the same value.

    When setting the different value, it is detected as a fault.

(*2)See following illustration for setting position of Off-delay Time Preset Switch. Make sure that the direction of cutting 

      edge of preset switch is correctly pointed to the off-delay time value which must be set.

ex.1) 0 second off-delay setting

ex.2) 1.5 second off-delay setting

OFF-DELAY

0

5.0

4.0

3.0

2.0

1.5

1.0

0.8

0.7

0.6

0.5

0.4

0.3

0.1

0.2

2.5

OFF-DELAY

0

5.0

4.0

3.0

2.0

1.5

1.0

0.8

0.7

0.6

0.5

0.4

0.3

0.1

0.2

2.5

cutting edge

LED Indicators

Marking Color

Name

Function

PWR

Green

Power supply

Indicator

Lights up while power is supplied.

Blinks corresponding to the occurring error

IN1

Orange

Safety Input 

#1 indicator

Lights up while high signal is input to T12

Blinks when error relating to Safety  input #1 occurs. 

IN2

OUT

OUT1

Lights up while Safety outputs (13-14, 23-24, 33-34, 43-44) are in ON-state.

Blinks when an error relating to Safety output occurs.

OUT2

Lights up while off-delayed Safety outputs (37-38, 47-48) are in ON-state.

Blinks when an error relating to Safety off-delayed solid-state output occurs.

Input current
ON voltage

Type G9SE-401

Type G9SE-221-T

Type G9SE-201

Reset/Feedback

Input

Safety Outputs

(Instantaneous)

Safety Outputs (OFF-delay)

OFF-delay

time preset

switch

Power Supply

Safety Input1
Safety Input2

Auxiliary output

Precautions for Correct Use

6 kV

24 VDC 4 mA

Inputs

OFF voltage
OFF current

11 VDC Min.

5 mA Min.

5 VDC Max.
1 mA Max.

Electrical durability

Contact

outputs 

Insulation

specification

Dielectric

strength

1,500 VAC

Destruction
Malfunction

100 m/s

 22.5 

 124 

 109 

 4 

 111.6 

 4 

 3 

 6.6 

 3 

 17.5 

Type G9SE-201 Type G9SE-401

Type G9SE-221-T

5.6 

5.6 

R2.3 

 11.4 

 9.9 

 71 

 73.5 

Mounting holes

 133 ±0.3

Two, 4.2 dia.

or M4

Screw mounting
attachment

Insert

(1) Use G9SE within an enclosure with IP54 protection or higher of IEC/EN60529.

(2) When ready for wiring, the power source should be disconnected first. Further, at operating this unit, do not touch 

      the terminals in order to prevent an electrical shock.

(3) Do not apply any excessive voltage or current to the input or output circuit the G9SE. Doing so may result in damage 

      to the G9SE or cause a fire.

(4) Incorrect wiring may lead to loss of safety function. Wire conductors correctly and verify the operation of G9SE

      before commissioning the system in which G9SE is incorporated. 

(5) Do not apply DC voltages exceeding the rated voltages, or AC voltages to G9SE.

(6) Use DC supply satisfying requirements below to prevent electric shock.

      - DC power supply with double or reinforced insulation, for example, according to IED/EN60950 or EN50178 or 

a transformer according to IEC/EN61558.

      - DC supply satisfies the requirement for class 2 circuits or limited voltage/current circuit stated in UL 508.

(7) The lifetime of G9SE depends on the conditions of switching of its outputs. Be sure to conduct its test operation 

      under actual operating conditions in advance and use it within appropriate  switching cycles. Apply protection 

      circuitry against back electromotive force in case connecting inductive loads to safety outputs.

(8) Do not operate the G9SE with flammable or explosive gas. An arc with operation and the heat of relay will cause

      a fire or an explosion.

(9) Do not 

drop G9SE to the ground or ,dismantle, repair, modify G9SE, 

otherwise an electric shock may occur or 

      the G9SE may malfunction

.  It may lead to loss of its safety functions.

(10) Use protective device (Fuse etc.) for short-circuit protection and ground fault protection, otherwise a fire may occur 

        or the G9SE may malfunction.

(11) Auxiliary monitoring outputs are NOT safety outputs. Do not use auxiliary outputs as any safety output.

 Such incorrect use causes loss of safety function of G9SE and its relevant system.

(12) After installation of G9SE, qualified personnel should confirm the installation, and should conduct test

        operations and maintenance.

        The qualified personnel should be qualified and authorized to secure the safety on each phases of design,

        installation, running, maintenance and disposal of system.

(13) A person in charge, who is familiar to the machine in which G9SE is to be installed, should conduct and verify 

        the installation.

Type G9SE-201

Type G9SE-221-T

Type G9SE-401

4022078-4 A

Original instructions

Safety Relay Unit

USER'S MANUAL

English

Thank you for purchasing G9SE Safety Relay Unit.
Please read and understand this manual before using the products.

Keep this manual ready to use whenever needed. 

Only qualified person  trained in professional electrical technique should handle G9SE.
Please consult your OMRON representative if you have any questions or comments.

EC Declaration of Conformity

OMRON declares that G9SE series are in conformity with the requirements of the following 

EC Directives:

 - EMC Directive: 2004/108/EC

 - Machinery Directive: 2006/42/EC

G9SE series are designed and manufactured in accordance with the following standards:

 - EN ISO13849-1: 2008  PL e  Category 4 

 - IEC/EN 60947-5-1, 

 

 

- IEC/EN 62061 SIL3,

 

EN81-1 

    - 

EN81-2

 - UL508   

 

 

 

- CAN/CSA C22.2 No.14

Standards

Precaution for Safe Use

WARNING

Indicates a potentially hazardous situation which, if not avoided, will 

result in minor or moderate injury, or may

result in serious injury or death. 

Additionally there may be significant property damage.

Meanings of Signal Words

The following signal words are used in this manual.

Indicates prohibited actions

Meaning of Alert Symbols

The following alert symbols are used in this manual.

Indicates mandatory actions

Alert Statements

Serious injury may possibly occur due to breakdown of safety outputs.

Do not connect loads beyond the rated value tothe safety outputs.

Serious injury may possibly occur due to loss of required safety functions.

Wire G9SE properly so that supply voltages or voltages for loads do NOT touch the 

safety inputs accidentally or unintentionally.

WARNING

Serious injury may possibly occur due to loss of safety functions.

Use appropriate devices referring to the information shown below.

Controlling Devices

Emergency stop switch

Door interlocking switch 

Limit switch

Safety Sensor

Relay with forcibly guided 

contacts

Contactor

Other devices

Requirements

Use approved devices with Direct Opening Mechanism complying with 

IEC/EN 60947-5-1

Use approved devices with Direct Opening Mechanism complying with 

IEC/EN 60947-5-1 and capable of switching micro loads of 24VDC, 5mA.

Use approved devices complying with the relevant product standards, 

regulations and rules in the country where it is used.

Use approved devices with forcibly guided contacts complying with 

EN 50205.

For feedback purpose use devices with contacts capable of switching 

micro loads of  24VDC, 5mA.

Use contactors with forcibly guided mechanism to input the signal to 

Feedback/Reset input of G9SE through the NC contact of the contactor.

For feedback purpose use devices with contacts capable of switching 

micro loads of 24VDC, 5mA.

Failure to open contacts of a contactor cannot be detected by monitoring 

its auxiliary NC contact without forcibly guided mechanism.

Evaluate whether devices used are appropriate to satisfy the requirements 

of safety category level.

Precautions for Safe Use

(14) Perform daily and 6-month inspections for the G9SE. Otherwise, the system may fail to work properly, 

        resulting in serious injury. Turn OFF the signal to Safety input and make sure G9SE operates without fault by 

        checking the state of the LED indicator in inspection.

(15) Conformity to requirements of performance level is determined as an entire system. It is recommended to consult 

        a certification body regarding assessment of conformity to the required safety level.

(16) OMRON shall not be responsible for conformity with any safety standards regarding to customer's entire 

        system.

(17) Dispose of the Units according to local ordinances as they apply.

Internal Connection

2

● 

Type G9SE-201

● 

Type G9SE-

01

● 

Type G9SE-221-T

A1

A2

T11 T12

T32 T33

13 23

Safety

Outputs

(instanta

neous)

37 47

14 24 38 48

T21 T22

Reset/

Feedback

Input

Safety

Input 1

Power

supply

circuit

Safety

Input 2

T31

X1

Auxiliary

Output  

Safety

Outputs

(OFF-

delay)

A1

A2

T11 T12

T32 T33

13 23

Safety

Outputs

(instanta

neous)

33 43

14 24 34 44

T21 T22

Reset/

Feedback

Input

Safety

Input 1

Power

supply

circuit

Safety

Input 2

T31

X1

Auxiliary

Output  

A1

A2

T11 T12

T32 T33

13 23

Safety

Outputs

(instanta

neous)

14 24

T21 T22

Reset/

Feedback

Input

Safety

Input 1

Power

supply

circuit

Safety

Input 2

T31

X1

Auxiliary

Output 

Dimensions

Orange

Orange

Orange

Safety Input 

#2 indicator
Safety Output 

indicator

OFF-delayed

Safety Output 

indicator

Lights up while high signal is input to T22

Blinks when error relating to Safety  input #2 occurs. 

cutting edge

Power

input

Outputs

Item

Operating voltage range
Rated power consumption (See Note1)
Safety output

OFF-delayed Safety output
Auxiliary output

Response time (ON to OFF state) (See Note2)

Note: Specifications  subject  to  change  without  notice.

OMRON  Corporation (Manufacturer)

Shiokoji Horikawa, Shimogyo-ku, Kyoto, 600-8530 JAPAN

Regional Headquarters

OMRON EUROPE B.V. (Importer in EU)

Wegalaan 67-69, 2132 JD Hoofddorp

The Netherlands

Tel: (31)2356-81-300/Fax: (31)2356-81-388

 Contact:  www.ia.omron.com

OMRON ASIA PACIFIC PTE. LTD.

No. 438A Alexandra Road # 05-05/08 

(Lobby 2), Alexandra Technopark, 

Singapore 119967

Tel: (65) 6835-3011/Fax: (65) 6835-2711

OMRON (CHINA) CO., LTD.

Room 2211, Bank of China Tower, 

200 Yin Cheng Zhong Road, 

PuDong New Area, Shanghai, 200120, China

Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200

OMRON SCIENTIFIC TECHNOLOGIES INC.

6550 Dumbarton Circle Fremont 

CA 94555 U.S.A

Tel: (1) 510-608-3400/Fax: (1) 510-744-1442

[mm]

Type G9SE-221-T

Type G9SE-221-T

Between input

and output
Between

different poles

of output
Between input

and output
Between

different poles

of output

2,200 VDC

6 kV (between 13-14/23-24 and 33-34/43-44(37-38/47-48))

4 kV (between 13-14 and 23-24, 

between 33-34(37-38)

 and 

43-44(47-48)

)

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