G9SA-501 AC/ DC24

**Safety Relay Unit G9SA** 

CSM_G9SA_DS_E_11_8 

## **The G9SA Series Offers a Complete Line-up of Compact Units.** 

- Four kinds of 45-mm wide Units are available: 

A 3-pole model, a 5-pole model, and models with 3 poles and 2 OFF-delay poles, as well as a Two-hand Controller. Also available are 17.5-mm wide Expansion Units with 3 poles and 3 OFF-delay poles. 

- Simple expansion connection. 

- OFF-delay models have 15-step OFF-delay settings. 

- Conforms to EN ISO13849-1 (PLe/Safety Category 4) *. 

- Both DIN track mounting and screw mounting are possible. 

- Except for some models. 

Refer to "Applicable Performance Level (PL)" on page 13, or "Reliability data for safety of control components_SISTEMA library" on OMRON's website. 

For the most recent information on models that have been certified for safety standards, refer to your OMRON website. 

. 

Be sure to read the _"Safety Precautions"_ on page 15 

## **Model Number Structure** 

## **Model Number Legend** 

**Note: 1.** Please see “Ordering Information” on page 2 for the actual models that can be ordered. **2.** Specify the power supply voltage when ordering. 

## **G9SA-** @@@@@@ **-** @@@@ 

**1    2   3  4   5           6** 

## **1. Function** 

None: Emergency stop 

- EX: Expansion Unit 

TH: Two-hand Controller 

## **2. Contact Configuration (Safety Output)** 

- 0: None 

- 3: 3PST-NO 

- 5: 5PST-NO 

## **3. Contact Configuration (OFF-delay Output)** 

- 0: None 

- 2: DPST-NO 

- 3: 3PST-NO 

## **4. Contact Configuration (Auxiliary Output)** 

- 0: None 

- 1: SPST-NC 

## **5. Input Configuration** 

None: 1-channel or 2-channel input possible 

## **6. OFF-delay Time (Max. setting time)** 

None: No OFF-delay T075: 7.5 seconds 

T15: 15 seconds 

T30: 30 seconds 

**1** 

**G9SA** 

## **Ordering Information** 

Specify the power supply voltage when ordering. 

## **G9SA Master Units** 

## **Emergency-stop Units** 

|**Main contacts**|**Auxiliary contact**|**Number of input channels**|**Rated voltage**|**Model**|
|---|---|---|---|---|
|3PST-NO|SPST-NC|1 channel or 2 channels<br>possible|24 VAC/VDC|**G9SA-301**|
||||100 to 240 VAC||
|5PST-NO|||24 VAC/VDC|**G9SA-501**|
||||100 to 240 VAC||



## **Emergency-stop OFF-delay Units** 

|**Main contacts**|**OFF-delay**<br>**contacts**|**Auxiliary**<br>**contact**|**Number of**<br>**input**<br>**channels**|**OFF-delay**<br>**time**|**Rated voltage**|**Model**|
|---|---|---|---|---|---|---|
|3PST-NO|DPST-NO|SPST-NC|1 channel or<br>2 channels<br>possible|7.5 s|24 VAC/VDC|**G9SA-321-T075**|
||||||100 to 240 VAC||
|||||15 s|24 VAC/VDC|**G9SA-321-T15**|
||||||100 to 240 VAC||
|||||30 s|24 VAC/VDC|**G9SA-321-T30**|
||||||100 to 240 VAC||



**Note:** Set to maximum values in the factory. 

- The following 15-step OFF-delay time settings are available: T075: 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, and 7.5 s T15:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 s 

- T30:2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30 s 

## **Two-hand Controller** 

|**Main contacts**|**Auxiliary contact**|**Number of input channels**|**Rated voltage**|**Model**|
|---|---|---|---|---|
|3PST-NO|SPST-NC|2 channels|24 VAC/VDC|**G9SA-TH301**|
||||100 to 240 VAC||



## **Expansion Unit** 

## **Expansion Unit** 

The Expansion Unit connects to a G9SA-301, G9SA-501, G9SA-321, or G9SA-TH301. 

|**Main contacts**|**Auxiliary contact**|**Auxiliary contact**|**Model**|
|---|---|---|---|
|3PST-NO|SPST-NC||**G9SA-EX301**|
|**Expansion Units with OFF-delay Outputs**<br>The Expansion Unit connects to a G9SA-301, G9SA-501 or G9SA-321.||||
|**Main contact form**|**Auxiliary contact**|**OFF-delay time**|**Model**|
|3PST-NO|SPST-NC|7.5 s|**G9SA-EX031-T075**|
|||15 s|**G9SA-EX031-T15**|
|||30 s|**G9SA-EX031-T30**|



**Note:** Set to maximum values in the factory. 

- The following 15-step OFF-delay time settings are available: T075: 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, and 7.5 s T15:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 s 

- T30:2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30 s 

**2** 

**G9SA** 

## **Specifications** 

## **Ratings** 

## **Power Input** 

|**Item**<br>**Model**|**G9SA-301/TH301**|**G9SA-501**|**G9SA-321-T**@|
|---|---|---|---|
|**Power supply voltage**|24 VAC/VDC:24 VAC, 50/60 Hz, or 24 VDC<br>100 to 240 VAC:100 to 240 VAC, 50/60 Hz|||
|**Operating voltage range**|85% to 110% of rated power supply voltage|||
|**Power consumption***|24 VAC/VDC: 1.8 VA/1.7 W max.<br>100 to 240 VAC: 9 VA max.|24 VAC/VDC: 2.8 VA/2.6 W max.<br>100 to 240 VAC: 11 VA max.|24 VAC/VDC: 3.5 VA/3.3 W max.<br>100 to 240 VAC: 12.5 VA max.|



* When an Expansion Unit is connected, the power consumption is increased by 2 VA/2 W max. 

## **Inputs** 

|**Item**<br>**Model**|**G9SA-301/321-T**@**/TH301**|**G9SA-501**|
|---|---|---|
|**Input current***|40 mA max.|60 mA max.|



* When an Expansion Unit is connected, the input current is increased by 30 mA max. 

## **Contacts** 

|**Model**|**G9SA-301/501/321-T**@**/TH301/EX301/EX031-T**@|
|---|---|
|**Item**<br>**Load**|**Resistive load**|
|**Rated load**|250 VAC, 5 A<br>30 VDC, 5 A|
|**Rated carry current**|5 A|



## **Characteristics** 

|**Item**<br>**Model**|**Item**<br>**Model**|**Item**<br>**Model**|**G9SA-301/TH301**|**G9SA-501/321-T**@|**G9SA-EX301/EX031-T**@|
|---|---|---|---|---|---|
|**Contact resistance*1**|||100 mΩ|||
|**Operating time*2**|||30 ms max.|||
|**Response time*3**|||10 ms max.|||
|**Isolation**<br>**specification**|**Isolation voltage (Ui)**||250 VAC|||
||**Impulse withstand voltage (Uimp)**||4 kV|||
||**Insulation**<br>**resistance*4**|**Between input and output**|100 MΩmin. (at 500 VDC)|||
|||**Between different poles of output**||||
||**Dielectric**<br>**strength**|**Between input and output**|2,500 VAC 1min.|||
|||**Between different poles of output**||||
|**Vibration resistance**|||10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double amplitude)|||
|**Shock**<br>**resistance**|**Destruction**||300 m/s2|||
||**Malfunction**||100 m/s2|||
|**Durability*5**|**Mechanical**||5,000,000 operations min. (at approx. 7,200 operations/hr)|||
||**Electrical**||100,000 operations min. (at approx. 1,800 operations/hr)|||
|**Failure rate (P Level) (reference value)**|||5 VDC, 1 mA|||
|**Ambient operating temperature**|||−25 to 55°C (with no icingor condensation)|||
|**Ambient operating humidity**|||35% to 85%|||
|**Terminal tightening torque**|||0.98 N·m|||
|**Weight*6**|||Approx. 210g|Approx. 270g|Approx. 130g|



*1. The contact resistance was measured with 1 A at 5 VDC using the voltage-drop method. 

*2. Not Including bounce time. 

*3. The response time is the time it takes for the main contact to open after the input is turned OFF. Includes bounce time. 

*4. The insulation resistance was measured with 500 VDC at the same places that the dielectric strength was checked. 

*5. The durability is for an ambient temperature of 15 to 35 ° C and an ambient humidity of 25% to 75%. 

*6. Weight shown is for 24-VAC/VDC type. For 100 to 240-VAC type, add approximately 20 g. 

**3** 

**G9SA** 

## **Connections** 

## **Internal Connections** 

## **G9SA-301 (24 VAC/VDC)** 

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A1 A2 T11 T12 T31 T32 13 23 33 41<br>3<br>1 4<br>TH c K1 K2 K1 1<br>SA K2 23<br>4<br>K1 b ab Controlcircuit 25 JP 56<br>K2<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>*2 *1<br>G9SA-501 (24 VAC/VDC)<br>A1 A2 T11 T12 T31 T32 13 23 33 43 53 61<br>1 3<br>TH c K1 K2 K4 K3 4 1<br>SA K4 23<br>4<br>K1 K3 b K2 ab Control circuit 25 K1K2 JP 56<br>6<br>PE T21 T23 T22 A B 14 24 34 44 54 62<br>*2 *1<br>G9SA-321-T @  (24 VAC/VDC)<br>A1 A2 T11 T12 T31 T32 13 23 33 43 53 61<br>1 3<br>TH c K1 K2 K3 K3 4 1<br>SA 2<br>a K4 3<br>4<br>K1 b K2 K4 Off delay timer Control circuit 25 K1 JP 56<br>K2<br>b<br>6<br>PE T21 T23 T22 A B 14 24 34 44 54 62<br>*2 *1 *3<br>G9SA-TH301 (24 VAC/VDC)<br>A1 A2 T13 T11 T12 T31 T32 13 23 33 41<br>K1<br>TH<br>SA 43 K2 123<br>1 Control circuit 25 JP 456<br>K2 K1<br>6<br>PE T23 T21 T22 14 24 34 42<br>**----- End of picture text -----**<br>


## **G9SA-501 (24 VAC/VDC)** 

## **G9SA-321-T** @ **(24 VAC/VDC)** 

## **G9SA-TH301 (24 VAC/VDC)** 

## **G9SA-301 (100 to 240 VAC)** 

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A1 A2 T11 T12 T31 T32 13 23 33 41<br>3<br>1 4<br>a K1 K2 K1 1<br>K2 23<br>4<br>AC K1 b K2 ab Controlcircuit 25 JP 56<br>DC<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>*2 *1<br>G9SA-501 (100 to 240 VAC)<br>A1 A2 T11 T12 T31 T32 13 23 33 43 53 61<br>1 3<br>4<br>a K1 K2 K4 K3 1<br>K4 23<br>4<br>AC K1 K3 b K2 ab Controlcircuit 25 K1K2 JP 56<br>DC<br>6<br>PE T21 T23 T22 A B 14 24 34 44 54 62<br>*2 *1<br>G9SA-321-T @  (100 to 240 VAC)<br>A1 A2 T11 T12 T31 T32 13 23 33 43 53 61<br>1 3<br>a K1 K2 K3 K3 4 1<br>2<br>a K4 3<br>4<br>AC K1 b K2 K4 Off DelayTimer Controlcircuit 25 K1K2 JP 56<br>DC b<br>6<br>PE T21 T23 T22 A B 14 24 34 44 54 62<br>*2 *1 *3<br>**----- End of picture text -----**<br>


## **G9SA-501 (100 to 240 VAC)** 

## **G9SA-321-T** @ **(100 to 240 VAC)** 

## **G9SA-TH301 (100 to 240 VAC)** 

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A1 A2 T13 T11 T12 T31 T32 13 23 33 41<br>K1<br>3 K2 12<br>4 3<br>AC 1 Control circuit 25 JP 456<br>DC 6 K2 K1<br>PE T23 T21 T22 14 24 34 42<br>**----- End of picture text -----**<br>


## **G9SA-EX301** 

**==> picture [103 x 71] intentionally omitted <==**

**----- Start of picture text -----**<br>
13 23 33 41<br>1 2 5 4<br>K1<br>1<br>23 K2<br>4<br>5<br>6 K1 K2<br>6 3<br>14 24 34 42<br>**----- End of picture text -----**<br>


## **G9SA-EX031-T** @ 

**==> picture [113 x 71] intentionally omitted <==**

**----- Start of picture text -----**<br>
13 23 33 41<br>1 4<br>1 K2 2 5 K1<br>234 Off delay timer K2<br>5<br>6 K1<br>6 3<br>14 24 34 42<br>**----- End of picture text -----**<br>


- **Note: 1.** With 100 to 240-VAC type, be sure to connect PE to a protective ground. With 24-VAC/VDC type, if the power supply is not connected to a protective ground, be sure to connect PE to a protective ground. 

   **2.** With 24-VAC/VDC type, the power supply terminals A1 and A2 have polarities. A2 is the negative pole. 

- *1. Use terminals A and B to switch reset mode. 

   - A to B open: Manual reset 

   - A to B closed: Auto-reset 

- *2. Terminal T23 is used for 2-channel input with a positive common (when connecting a safety sensor with a PNP output). When using T23, make sure that T21 and T22 are open. For 1-channel input, make sure that T12 and T23 are shorted. 

- *3. Terminals 43-44 and terminals 53-54 are OFF-delayed outputs. 

**4** 

**G9SA** 

## **Wiring of Inputs and Outputs** 

|**Signal name**|**Terminal name**|**Description of operation**|
|---|---|---|
|Power supply input|A1, A2|The input terminals for power supply. Connect the power source to the A1 and A2 terminals.<br>DC inputs have polarity, so A1 should be connected to the positive side and A2 to the negative side.|
|Safety input 1|T11, T12|To set the safety outputs in the ON state, the ON state signals must be input to both safety input 1 and<br>safety input 2. Otherwise the safety outputs cannot be in the ON state.|
|Safety input 2|T21, T22, T23*1||
|Feedback/reset input|T31, T32|To set the safety outputs in the ON state, the ON state signal must be input to T31 - T32. Otherwise the<br>safety outputs cannot be in the ON state.|
|Instantaneous safety outputs|See below.*2|Turns ON/OFF according to the state of the safety inputs and feedback/reset inputs. During OFF-delay<br>state, the Instantaneous safety outputs are not able to turn ON.|
|OFF-delayed safety outputs|See below.*2|OFF-delayed safety outputs. The OFF-delay time is set by the OFF-delay preset switch.|
|Auxiliary output|See below.*2|Synchronized with Instantaneous Safety Output.|
|Manual/Auto selector input|A, B*3|Switch between Auto Reset and Manual Reset modes.|
|Ground terminal|PE|Be sure to connect the PE terminal to a protective earth for 100-240 VAC models.<br>Where the 24 VAC/VDC model power supply is not grounded, lease be sure to connect the PE to a<br>protective earth.|



- *1. Terminal T23 

Terminal T23 is used for 2-channel input with a positive common (when connecting a safety sensor with a PNP output). When T23 is being used, please open T21 and T22. For 1-channel input, short circuit T12-T23 before use. 

- *2. Output Contacts 

G9SA-301: Safety Output Contacts 13-14, 23-24, 33-34. Auxiliary Contact 41-42. 

G9SA-501: Safety Output Contacts 13-14, 23-24, 33-34, 43-44, 53-54. Auxiliary Contact 61-62. 

G9SA-321-T @ : Safety Output Contacts 13-14, 23-24, 33-34. Safety OFF-delay Output Contact 43-44, 53-54. Auxiliary Contact 61-62. 

- *3. Terminals A and B 

A-B Opening: Manual Reset 

A-B Short Circuit: Auto Reset 

**5** 

**G9SA** 

**(Unit: mm)** 

## **Dimensions and Terminal Arrangement** 

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**----- Start of picture text -----**<br>
G9SA-301<br>G9SA-501<br>G9SA-321-T @ Terminal Arrangement<br>G9SA-TH301<br>G9SA-301 G9SA-501 G9SA-TH301<br>G9SA-321-T@<br>13 23 33 41 13 23 33 43 53 61 13 23 33 41<br>91 T11 T12 T31 T32 T23 A1 T11 T12 T31 T32 T23 A1 (See note 1.) T11 T12 T13 T31 T32 A1<br>PWR (green)<br>PWR (green) PWR (green)<br>K1 (green)<br>K1 (green) K1 (green)<br>K2 (green)<br>K2 (green) K2 (green)<br>K3 (green)<br>K4 (green)<br>T21 T22 A B PE A2 T21 T22 A B PE A2 T21 T22 T23 PE A2<br>10.5<br>14 24 34 42 14 24 34 44 54 62 14 24 34 42<br>5.9 G9SA-301: G9SA-501:  Twenty, M3Twenty-four, M3 Mounting Holes<br>4.6 dia. 7 × 5=35 G9SA-321-TG9SA-TH301: Twenty-one, M3@: Twenty-four, M3 Two, 4.2 dia. or M4<br>9<br>(See note 1)<br>76 max. 63 43 84±0.3<br>Connector cover *<br>5.6<br>9<br>35±0.3<br>4 5 ma x.<br>Note 1:  The OFF-delay time setting switch is  R2.3 1 11 max . 5<br>found on the G9SA-321-T@ only.<br>**----- End of picture text -----**<br>


   - **2:** The K1 to K4 indicators light when the NO contacts of internal relays K1 to K4 close. 

- Do not remove unless an Expansion Unit is being used. 

**G9SA-EX301 G9SA-EX031-T** @ 

**==> picture [471 x 303] intentionally omitted <==**

**----- Start of picture text -----**<br>
@ Mounting Holes<br>Two, 4.2 dia. or M4 Terminal Arrangement<br>G9SA-EX301<br>G9SA-EX031-T@<br>91 33 41<br>87±0.3<br>13 23<br>PWR (green)<br>K1 (green)<br>K2 (green)<br>10.5 14 24 OFF-delay time setting switch<br>Eight, M3 34 42 (See note 1)<br>5.9<br>7<br>4.6 dia.<br>9<br>42<br>76 max. 63 43<br>OFF-delay time<br>setting switch<br>(See note 1)<br>The OFF-delay time setting switch is  5.6<br>found on the G9SA-EX031-T@ only.@ only. only.<br>2:  The K1 and K2 indicators light when  13.2<br>the NO contacts of internal relays K1<br>and K2 close. R2.3 5<br>17.5 max. 70 111 max .<br>**----- End of picture text -----**<br>


**Note 1:** The OFF-delay time setting switch is found on the G9SA-EX031-T@ only.@ only. only. 

**6** 

**G9SA** 

**Application Examples** 

## **G9SA-301 (24 VAC/VDC) with 2-channel Limit Switch Input/Auto-reset** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLe/4 equivalent|Safety Limit Switch  D4B-N/D4N/D4F<br>Safety Relay Unit  G9SA-301  (24 VAC/VDC)|0|Auto|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- The power supply to the motor M is turned OFF when the S1 and S2 detect that the guard is opened. 

- The power supply to the motor M is kept OFF until the guard is closed. 

**==> picture [511 x 290] intentionally omitted <==**

**----- Start of picture text -----**<br>
Timing Chart<br>23 Limit switches<br>S1 and S2<br>S2 24 KM1 and KM2<br>Guard (NO)<br>11<br>S1<br>Feedback loop<br>12<br>KM1<br>KM2<br>S1:  Safety limit switch<br>Open S2:  Limit switch<br>KM1 and KM2: Magnetic contactor<br>M:  Motor<br>A1 A2 T11 T12 T31 T32 13 23 33 41<br>3<br>1 4<br>TH<br>a K1 K2 K1 1<br>SA K2 2<br>3 KM1<br>4<br>K1 b K2 ab ControlCircuit 25 JP 56<br>KM2<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>M<br>KM1 KM2<br>**----- End of picture text -----**<br>


**7** 

**G9SA** 

## **G9SA-301 (24 VAC/VDC) with 2-channel Limit Switch Input/Manual Reset** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLe/4 equivalent|Safety Limit Switch  D4B-N/D4N/D4F<br>Safety Relay Unit  G9SA-301  (24 VAC/VDC)|0|Manual|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- The power supply to the motor M is turned OFF when the S1 and S2 detect that the guard is opened. 

- The power supply to the motor M is kept OFF until the guard is closed and the reset switch S3 is pressed. 

**==> picture [511 x 291] intentionally omitted <==**

**----- Start of picture text -----**<br>
23 Timing Chart<br>S2 Limit switches<br>24 S1 and S2<br>Guard<br>11 Reset switch S3<br>S1<br>Feedback loop<br>KM1 and KM2<br>12 (NO)<br>KM1<br>S3 KM2<br>Open S1:  Safety limit switch<br>S2:  Limit switch<br>S3:  Reset switch<br>KM1 and KM2: Magnetic contactor<br>A1 A2 T11 T12 T31 T32 13 23 33 41 M:  Motor<br>3<br>1 4<br>TH<br>a K1 K2 K1 1<br>SA K2 2<br>34 KM1<br>K1 b K2 ab ControlCircuit 25 JP 56<br>KM2<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>M<br>KM1 KM2<br>**----- End of picture text -----**<br>


**8** 

**G9SA** 

## **G9SA-301 (100 to 240 VAC) with 2-channel Limit Switch Input/Auto-reset** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLe/4 equivalent|Safety Limit Switch  D4B-N/D4N/D4F<br>Safety Relay Unit  G9SA-301  (100 to 240 VAC)|0|Auto|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- The power supply to the motor M is turned OFF when the S1 and S2 detect that the guard is opened. 

- The power supply to the motor M is kept OFF until the guard is closed. 

**==> picture [511 x 297] intentionally omitted <==**

**----- Start of picture text -----**<br>
Timing Chart<br>23<br>Limit switches<br>S2 24 S1 and S2<br>Guard KM1 and KM2<br>11 (NO)<br>S1<br>Feedback loop<br>12<br>KM1<br>S1:  Safety limit switch<br>KM2 S2:  Limit switch<br>KM1 and KM2: Magnetic contactor<br>Open M:  Motor<br>A1 A2 T11 T12 T31 T32 13 23 33 41<br>3<br>1 4<br>a K1 K2 K1 1<br>K2 2<br>3 KM1<br>4<br>AC K1 b K2 ab ControlCircuit 25 JP 56<br>  DC KM2<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>M<br>KM1 KM2<br>**----- End of picture text -----**<br>


**9** 

**G9SA** 

## **G9SA-301 (24 VAC/VDC) with 2-channel Emergency Stop Switch Input/Manual Reset** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLe/4 equivalent|Emergency Stop Switch  A165E/A22E<br>Safety Relay Unit  G9SA-301  (24 VAC/VDC)|0|Manual|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- The power supply to the motor M is turned OFF when the emergency stop switch is pressed. 

- The power supply to the motor M is kept OFF until the reset switch S2 is pressed while the emergency stop switch is released. 

**==> picture [295 x 235] intentionally omitted <==**

**----- Start of picture text -----**<br>
S1 21 11<br>Feedback loop<br>22 12<br>KM1<br>S2 KM2<br>A1 A2 T11 T12 T31 T32 13 23 33 41<br>3<br>1 4<br>TH<br>a K1 K2 K1 1<br>SA K2 2<br>3 KM1<br>4<br>K1 b K2 ab ControlCircuit 25 JP 56<br>KM2<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>M<br>KM1 KM2<br>**----- End of picture text -----**<br>


**Timing Chart** Emergency stop switch S1 Reset switch S2 KM1 and KM2 (NO) 

**==> picture [72 x 48] intentionally omitted <==**

S1: Emergency stop switch S2: Reset switch KM1 and KM2: Magnetic contactor M: Motor 

**10** 

**G9SA** 

## **G9SA-321-T** @ **(24 VAC/VDC) with Guard Lock Safety-door Switch + Limit Switch Input/Manual Reset** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLd/3 equivalent|Safety Limit Switch  D4B-N/D4N/D4F<br>Guard Lock Safety-door Switch  D4SL-N/D4NL/D4JL<br>Safety Relay Unit  G9SA-321-T@(24 VAC/VDC)|1|Manual|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- Stop signal input is sent to output a stop command to the motor controller to decelerate the motor M. 

- The power supply to the motor M is turned OFF after OFF-delay time. 

- After the release of the guard is permitted by the lock release permission signal turned ON, the guard is open by the operation of the lock release switch S4. 

- Power supply to the motor M is kept OFF until the closing of the guard is confirmed by the limit switch S1 and guard lock safety-door switch S2, and the reset switch S3 is pressed. 

**==> picture [485 x 483] intentionally omitted <==**

**----- Start of picture text -----**<br>
Lockrelease Timing Chart<br>permissionsignal Guard closed � opened<br>S4 S2 Safety limit switch S1<br>Guard lock safety door switch S2<br>Lock release permission signal<br>Lock release switch S4<br>Guard can be opened.<br>Stop signal<br>Reset switch S3<br>KM1,KM2 NO contact<br>Condition monitoring of<br>Safety-door Switch Operation command<br>Guard<br>Rotation of motor<br>S1<br>OFF-delay time<br>Open Feedback loop<br>Stop signal S3<br>KM1<br>KM2<br>A1 A2 T11 T12 T31 T32 13 23 33 43 53 61<br>1 3<br>TH a K1 K2 K3 K3 4 1<br>SA 2<br>a K4 3<br>4<br>K1 b K2 K4 Off DelayTimer ControlCircuit 25 K1 JP 56<br>K2<br>b<br>6 Operation command<br>PE T21 T23 T22 A B 14 24 34 44 54 62 Motor controller<br>KM1 KM2<br>KM1<br>KM2<br>S1:  Safety limit switch<br>S2:  Guard lock safety door switch<br>S3:  Reset switch M<br>S4:  Lock release switch<br>KM1 and KM2: Magnetic contactor<br>M:  Motor Note:  The lock release enable signal must be configured so that it should turn ON after<br>dangerous movement is stopped and safety is ensured for the door to open.<br>**----- End of picture text -----**<br>


**11** 

**G9SA** 

## **G9SA-321-T** @ **(24 VAC/VDC) + G9SA-EX031-T** @ **with Guard Lock Safety-door Switch + Limit Switch Input/Manual Reset** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLd/3 equivalent|Safety Limit Switch  D4B-N/D4N/D4F<br>Guard Lock Safety-door Switch  D4SL-N/D4NL/D4JL<br>Safety Relay Unit  G9SA-321-T@(24 VAC/VDC) + G9SA-EX031-T@|1|Manual|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- Stop signal input is sent to output a stop command to the motor controller to decelerate the motor M1 and M2. 

- The power supply to the motor M1 and M2 is turned OFF after the OFF-delay time that has been set to each unit. 

- After the release of the guard is permitted by the lock release permission signal turned ON, the guard is open by the operation of the lock release switch S4. 

- Power supply to the motor M is kept OFF until the closing of the guard is confirmed by the limit switch S1 and guard lock safety-door switch S2, and the reset switch S3 is pressed. 

**==> picture [511 x 496] intentionally omitted <==**

**----- Start of picture text -----**<br>
Timing Chart<br>Guard closed � opened<br>Lock<br>release Safety limit switch S1<br>permission<br>signal Guard lock safety door switch S2<br>S4 S2 Lock release permission signal<br>Lock release switch S4<br>Guard can be opened.<br>Stop signal<br>Reset switch S3<br>KM1,KM2 NO contact<br>Operation command<br>Condition monitoring of<br>Safety-door Switch Rotation of motor M1<br>Feedback loop OFF-delay time 1<br>Guard<br>KM3,KM4 NO contact<br>S1 KM1<br>Operation command<br>Stop  KM2 Rotation of motor M2<br>signal OFF-delay time 2<br>S3 KM3<br>Open<br>KM4<br>A1 A2 T11 T12 T31 T32 13 23 33 43 53 61 13 23 33 41<br>1 4<br>1 3<br>TH a K2 K3 K3 4 1 K2 2 5 K1<br>SA a K4 23 Off Delay K2<br>4 Timer<br>K1 b K3 Off DelayTimer ControlCircuit 25 K1 56 K1<br>K2<br>b<br>6 6 3<br>PE T21 T23 T22 A B 14 24 34 44 54 62 14 24 34 42<br>KM1 KM2 KM3 KM4<br>Operation command<br>S1:  Safety limit switch  Motor controller<br>S2:  Guard lock safety door switch<br>S3:  Reset switch Operation command<br>S4:  Lock release switch Motor controller<br>KM1, KM2,<br>KM3, and KM4: Magnetic contactor<br>M1, M2:  Motor KM1 KM3<br>KM2 KM4<br>Note:  The lock release enable signal must be configured so that it should turn ON after<br>dangerous movement is stopped and safety is ensured for the door to open.<br>M1 M2<br>**----- End of picture text -----**<br>


**12** 

**G9SA** 

## **G9SA-301 (24 VAC/VDC) with 2-channel Safety Sensor/Manual Reset (PNP models only)** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLe/4 equivalent|Safety Light Curtain  F3SJ-A/-B/-E<br>Safety Relay Unit  G9SA-301  (24 VAC/VDC)|0|Manual|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

- The power supply to the motor M is turned OFF when the beam is blocked. 

- The power supply to the motor M is kept OFF until the beam is unblocked and the reset switch S1 is pressed. 

**==> picture [503 x 270] intentionally omitted <==**

**----- Start of picture text -----**<br>
Safety Light Curtain * Timing Chart<br>Emitter Receiver<br>Unblocked<br>Blocked<br>Reset switch S1<br>KM1 and KM2 (NO)<br>Feedback loop<br>S1<br>KM1<br>24V KM2 S1: KM1 and KM2: Magnetic contactorReset switch<br>M:  Motor<br>A1 A2 T11 T12 T31 T32 13 23 33 41<br>3<br>1 4<br>TH<br>a K1 K2 K1 1<br>SA K2 2<br>3 KM1<br>4<br>K1 b K2 ab ControlCircuit 25 JP 56<br>KM2<br>6<br>PE T21 T23 T22 A B 14 24 34 42<br>KM1 KM2<br>M<br>OSSD2 OSSD1<br>**----- End of picture text -----**<br>


- The wiring method will vary depending on the safety light curtain model. 

Review the manuals or other provided documents for the safety light curtain before proceeding with wiring. 

**13** 

**G9SA** 

## **G9SA-TH301 (24 VAC/VDC) with 2-hand Inputs** 

|**Highest achievable PL/**<br>**safety category**|**Model**|**Stop category**|**Reset**|
|---|---|---|---|
|PLe/4 equivalent|Safety Relay Unit  G9SA-TH301  (24 VAC/VDC)|0|−|



**Note:** The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions. 

## ● **Application Overview** 

• The motor M is turned ON when the two-hand pushbutton switch S11 and S12 are pressed simultaneously. 

- The motor M is turned OFF when one of the two-hand pushbutton switches is released. 

**==> picture [494 x 278] intentionally omitted <==**

**----- Start of picture text -----**<br>
Timing Chart<br>S11 S12 S11 (NC)<br>S11 (NO)<br>Feedback loop S12 (NC)<br>KM1 S12 (NO)<br>KM2 KM1 and KM2 (NO)<br>0.5 s max.<br>Input time difference operates only<br>when the difference is 0.5 s max.<br>A1 A2 T13 T11 T12 T31 T32 13 23 33 4 1<br>TH K1<br>SA 3 K2 12<br>4 3<br>2 4<br>1 Control Circuit 5 JP 56 KM1<br>K2 K1<br>6<br>KM2<br>PE T23 T21 T22 14 24 34 42<br>KM1 KM2<br>M<br>**----- End of picture text -----**<br>


S11, S12: Two-hand pushbutton switches KM1 and KM2: Magnetic contactor 

**Note:** For S11 and S12, use a 1NO/1NC switch. 

**14** 

**G9SA** 

## **Safety Precautions** 

**Be sure to read the** _**Common Precautions for Safety Warning**_ **at the following URL: http://www.ia.omron.com/.** 

## **Precaution for Safe Use** 

## **Meanings of Signal Words** 

The following signal words are used in this manual. 

Indicates a potentially hazardous situation which, if not avoided, will result in minor or **WARNING** moderate injury, or may result in serious injury or death. Additionally there may be significant property damage. **Precautions for** Supplementary comments on what to do or **Safe Use** avoid doing, to use the product safely. Supplementary comments on what to do or **Precautions for** avoid doing, to prevent failure to operate, **Correct Use** malfunction, or undesirable effects on product performance. 

## **Meaning of Alert Symbols** 

**==> picture [32 x 32] intentionally omitted <==**

Indicates prohibited actions Indicates mandatory actions 

## ! **WARNING** 

**==> picture [32 x 32] intentionally omitted <==**

Serious injury may possibly occur due to breakdown of safety outputs. Do not connect loads beyond the rated value to the safety outputs. 

Serious injury may possibly occur due to loss of required safety functions. Wire G9SA properly so that supply voltages or voltages for loads do NOT touch the safety inputs accidentally or unintentionally. 

## **Precautions for Safe Use** 

- (1) When ready for wiring, the power source should be disconnected first. Further, at operating this unit, the terminal cover should be closed correctly in order to prevent an electrical shock. 

- (2) Do not wire in case threat of Lightning. otherwise an electric shock may occur. 

- (3) Do not apply any excessive voltage or current to the input or output circuit the G9SA. Doing so may result in damage to the G9SA or cause a fire. 

- (4) Do not apply any variable voltage, otherwise G9SA may malfunction. 

- (5) Do not connect any overload to the output circuit, otherwise the G9SA in operation will generate excessive heat and the output elements of the G9SA may short-circuit or fire may result. 

- (6) The lifetime of G9SA 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. Change the G9SA before expected operation. Over operation may cause may short-circuit or may malfunction. 

- (7) Do not operate the G9SA with flammable or explosive gass. An arc with operation and the heat of relay will cause a fire or an explosion. 

- (8) Do not disassemble, repair, or modify the G9SA, otherwise an electric shock may occur or the G9SA may malfunction. 

- (9) Use protective device (Fuse of 5 A current rating etc) for shortcircuit protection and ground fault protection, otherwise a fire may occur or the G9SA may malfunction. 

## **Precautions for Correct Use** 

- (1) For malfunctions in case that the power supply picks up gradually Malfunctions in case that the power supply picks up gradually. In case that the input circuits close before the power supplies, internal logic may malfunction. 

- (2) Handling 

   1. Do not drop the G9SA or shock or vibrate the G9SA excessively. Doing so may result in damage to the G9SA or cause G9SA to malfunction. 

   2. Do not turn the off-delay setting volume switch of G9SA-321T @ less than the MIN value or more than the MAX value. Otherwise the G9SA may be failed. 

- (3) For adhesion of solvent 

Adhesion of solvent, likely Alcohol, Thinner, Trichloroethane, Gasoline, on the product should be prohibited. Such solvent cause erasing the marking and being inferior of the parts. 

- (4) Operating and Storage Environment 

Do not operate or store the G9SA under the following conditions. Doing so may result in damage to the G9SA or cause the G9SA to malfunction. 

   1. The places with direct sunlight. 

   2. The places with ambient temperature ranges not within -25 to 55 ° C. 

   3. The places with rapid temperature changes resulting in condensation or relative humidity ranges not within 35 to 85% RH. 

   4. The places with atmospheric pressure out of the range 86 to 106 kpa. 

   5. The places with corrosive or inflammable gas. 

   6. The places with water, oil, or chemical sprayed on the G9SA. 

   7. The places with vibration or shock affecting the G9SA. 

   8. The places with atmosphere containing dusts, saline or metal powder. 

- (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. 

- (6) For feedback purpose use devices with contacts capable of switching micro loads of 24 VDC, 5 mA. 

(7) The Safety input OFF signal for T11/T12 (or T23) and T21/T22 terminals must be longer than the response time (10 ms). Otherwise, the G9SA will be locked out or will not be able to be started or restarted. Also, a shorter safety input OFF signal might cause the G9SA to be locked. In this case, all safety inputs must be turned off or the power supply for G9SA must be off before restarting the G9SA. 

- (8) Wiring 

   1. Use the following to wire the G9SA. 

   - Stranded wire (Flexible wire): 0.75 to 1.5 mm[2] 

   - Solid wire: 1.0 to 1.5 mm[2] 

   - Maximum Stripping length: 7 to 8mm 

   2. The G9SA may malfunction or generate heat. 

   - Tighten each screw to a torque of 0.78 to 1.18 N·m 

   3. External inputs connected to T11 and T12 or T21 and T22 of the G9SA must be no-voltage contact inputs. 

   4. PE is a ground terminal. When machine is grounded at the positive, the PE terminal should not be grounded. 

(9) 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. 

- (10) Mounting Expansion units 

When an Expansion Unit is being used, remove the connector cover from the G9SA Master Units and insert the connector of the Expansion Unit's connector cable. Make sure that the connector is correctly locked before operating. 

**15** 

**G9SA** 

## **Connector Cover** 

Do not remove the connector cover of the G9SA-301, G9SA-501, G9SA-321-T @ , or G9SA-TH301 unless an Expansion Unit is being used. 

## **Connecting Inputs** 

If using multiple G9SA models, inputs cannot be made using the same switch. This is also true for other input terminals. 

**==> picture [183 x 95] intentionally omitted <==**

**----- Start of picture text -----**<br>
Incorrect<br>T11 T12 T11 T12<br>G9SA G9SA<br>**----- End of picture text -----**<br>


## **Ground Shorts** 

The G9SA internal circuits have a positive thermistor (TH) built in, which will detect ground short malfunctions (where S1 and S2 are grounded) and 1-channel and 2-channel short malfunctions, and cut off the safety output. If the short breakdown is repaired, the G9SA automatically recovers. 

## **Applicable Performance Level (PL) (EN ISO13849-1)** 

G9SA Safety Relay Units can be applied to PLe/Safety Category 4. (The OFF-delay output section of G9SA-321-T @ /EX031-T @ is applied to PLd/Safety Category 3.) 

The above is provided according to circuit examples presented by OMRON. Therefore, the above may not apply to all operating environments. 

The applicable safety category is determined from the whole safety control system. Make sure that the whole safety control system meets ISO 13849-1 requirements. 

## **Resetting Inputs** 

When only channel 1 of the 2-channel input turns OFF, the safety output is interrupted. In order to restart when this happens, it is necessary to turn OFF and ON both input channels. It is not possible to restart by resetting only channel 1. 

## **Resetting Inputs During OFF Delay Time** 

The G9SA-321-T @ operates as follows according to the reset mode when the inputs are to be re-entered during the OFF delay time of the G9SA-321-T @ : 

For auto reset, after the OFF delay time has ended, the outputs will turn OFF, and then the outputs will turn ON again. 

For manual reset, after the OFF delay time has ended, the outputs will turn OFF, and then the outputs will turn ON again when the reset is input. 

## **Durability of Contact Outputs** 

Relay with Forcibly Guided Contact durability depends greatly on the switching condition. Confirm the actual conditions of operation in which the Relay will be used in order to make sure the permissible number of switching operations. 

When the accumulated number of operation exceeds its permissible range, it can cause failure of reset of safety control circuit. In such case, please replace the Relay immediately. If the Relay is used continuously without replacing, then it can lead to loss of safety function. 

## **Certified Standards** 

The G9SA-301/501/321-T @ /TH301/EX301/EX031-T @ conform to the following standards. 

- EN standards, certified by DGUV: EN60947-5-1 EN ISO13849-1: 2008 EN ISO13849-2 GS-ET-20 EN574 (G9SA-TH301 only) 

- UL standards: UL508 (Industrial Control Equipment) 

- CSA standards: CSA C22.2 No. 14 (Industrial Control Equipment) 

- CCC Certification: GB/T 14048.5 

**16** 

## Terms and Conditions Agreement 

## 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. 

## Warranties. 

(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. 

(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE 

PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. 

Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses 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. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. 

See http://www.omron.com/global/ or contact your Omron representative for published information. 

## Limitation on Liability; Etc. 

OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. 

## Suitability of 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. 

## Programmable Products. 

Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. 

## Performance Data. 

Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 

## 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 part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. 

## Errors and Omissions. 

Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 

**In the interest of product improvement, specifications are subject to change without notice.** 

## **OMRON Corporation** 

## **Industrial Automation Company** 

2019.7 

**http://www.ia.omron.com/** 

(c)Copyright OMRON Corporation 2019 All Right Reserved.