Omron G9SX DATASHEET

Flexible Safety Unit

t

G9SX

Logical AND Function Adds Flexibility
to I/O Expansion

• Facilitates partial or complete control system setup.

• Solid-state outputs (excluding Expansion Units).

• Detailed LED indications enable easy diagnosis.

• TÜV Product Service certification for compliance
with IEC/EN61508 (SIL3) and EN954-1 (Cat. 4).

• Approved by UL and CSA.

• New unit joins the Series with the following
two additional features:

-OFF-delay time of up to 150 seconds
(The OFF-delay output also complies with Cat. 4.)

-Two logical AND connection inputs

Note: Refer to Precautions on pages 17 and 18.

Features

● Productivity

“Partial stop” and “Complete stop” enhance productivity without sacrificing safety.

● Maintenance

LED indicators and detachable terminals for better maintenance.

● Expandability

“Logical connection” enables easier modification and expansion of machines.

Ex) Machining Center

• When the Emergency Stop Switch is pressed, the entire machine will stop.

• When a door is open, the corresponding part will not activate.

Tool changer door

Basic Unit
G9SX-BC

Pallet changer door

Main door

Emergency

Stop Switch

Emergency Stop Switch

Y1T32 T33T31
A1X1T12T11

G9SX-BC202
24VDC

FB

PWR

T1 T2

ERREI

No.

A2X2T22T21
L2L1S24S14

Logical
connection

G9SX-AD322-T15

0.7

0.4

0.3

Main Door

T32

T33T31

A1X2X1Y1T12T11

FB

PWR

T1

T2

AND

EI

ED

1.5
2

1

3

4

0.6

0.5

5

ERR

7

10

0.2
15

0

No.

OFF-DELAY

A2T42T41T22T21

S54S44S34S24S14 L1

Safety Door
Switch

Advanced Unit
G9SX-AD

Pallet Changer Door

Safety Door
Switch

T32

T33T31

A1X2X1Y1T12T11

G9SX-AD322-T15

FB

PWR

T1

T2

AND

EI

ED

1.5
2

1

3

0.7
4

0.6

0.5

5

ERR

0.4

7

0.3

10

0.2

15

0

No.

OFF-DELAY

A2T42T41T22T21

S54S44S34S24S14 L1

Advanced Unit
G9SX-AD

Tool Changer Door

Safety Door
Switch

T32

T33T31

A1X2X1Y1T12T11

G9SX-AD322-T15

FB

PWR

T1

T2

AND

EI

ED

1.5
2

1

3

0.7
4

0.6

0.5

5

ERR

0.4

7

0.3

10

0.2

15

0

No.

OFF-DELAY

A2T42T41T22T21

S54S44S34S24S14 L1

Advanced Uni
G9SX-AD

Flexible Safety Unit G9SX 1

Model Number Structure

■ Model Number Legend

G9SX-@@@@@@-@@@-@@

12 5 634

1. Functions

AD/ADA: Advanced Unit
BC: Basic Unit
EX: Expansion Unit

2. Output Configuration (Instantaneous Safety Outputs)

0: None
2: 2 outputs
3: 3 outputs
4: 4 outputs

3. Output Configuration (OFF-delayed Safety Outputs)

0: None
2: 2 outputs
4: 4 outputs

Ordering Information

4. Output Configuration (Auxiliary Outputs)

1: 1 output
2: 2 outputs

5. Max. OFF-delay Time

Advanced Unit

T15: 15 s
T150: 150 s

Basic Unit

No indicator: No OFF delay

Expansion Unit

No indicator: No OFF delay
T: OFF delay

6. Terminal Block Type

RT: Screw terminals
RC: Spring-cage terminals

■ List of Models

Advanced Unit

Safety outputs

(solid state) (See note 3.)

Instanta-

neous

3 2 2 1 1 1 or 2

2 2 2 15 s Screw

Note: 1. The OFF-delay time can be set in 16 steps as follows:

OFF-delayed
(See note 2.)

T15: 0/0.2/0.3/0.4/0.5/0.6/0.7/1/1.5/2/3/4/5/7/10/15 s
T150: 0/10/20/30/40/50/60/70/80/90/100/110/120/130/140/150 s

2. The OFF-delayed output becomes an instantaneous output by setting the OFF-delay time to 0 s.

3. P channel MOS FET transistor output

4. PNP transistor output

Auxiliary

outputs

(solid state)

(See note 4.)

Logical AND

connection

Inputs Outputs

No. of

input

channels

channels

Max. OFF­delay time

(See note 1.)

15 s 24 VDC Screw

150 s Screw

150 s Screw

Rated

voltage

Terminal

block type

terminals
Spring-cage

terminals

terminals
Spring-cage

terminals

terminals
Spring-cage

terminals

terminals
Spring-cage

terminals

Model

G9SX-AD322-T15-RT

G9SX-AD322-T15-RC

G9SX-AD322-T150-RT

G9SX-AD322-T150-RC

G9SX-ADA222-T15-RT

G9SX-ADA222-T15-RC

G9SX-ADA222-T150-RT

G9SX-ADA222-T150-RC

2 Flexible Safety Unit G9SX

Basic Unit

Safety outputs

(solid state) (See note 1.)

Instantaneous OFF-delayed Inputs Outputs

2 --- 2 0 2 1 or 2

Note: 1. P channel MOS FET transistor output

2. PNP transistor output

Auxiliary outputs

(solid state)

(See note 2.)

Logical AND

connection

No. of

input

channels

channels

Rated

voltage

24 VDC Screw terminals G9SX-BC202-RT

Terminal block type Model

Spring-cage terminals G9SX-BC202-RC

Expansion Unit

Safety outputs (contact) Auxiliary

Instantaneous OFF-delayed

4 PST-NO --- 1 --- 24 VDC Screw terminals G9SX-EX401-RT

--- 4 PST-NO (See note 2.) Screw terminals G9SX-EX041-T-RT

Note: 1. PNP transistor output

2. The OFF-delay time is synchronized to the OFF-delay time setting in the connected Advanced Unit (G9SX-AD-@/G9SX-ADA-@).

outputs

(solid state)

(See note 1.)

OFF-delay

time

Rated voltage Terminal block type Model

Spring-cage terminals G9SX-EX401-RC

Spring-cage terminals G9SX-EX041-T-RC

Specifications

■ Ratings

Power input

Item G9SX-AD322-@/ADA222-@ G9SX-BC202-@ G9SX-EX-@

Rated supply voltage 24 VDC
Operating voltage range
Rated power consumption (See note.) 4 W max. 3 W max. 2 W max.

Note: Power consumption of loads not included.

−15% to 10% of rated supply voltage

Inputs

Item G9SX-AD322-@/ADA222-@ G9SX-BC202-@

Safety input Operating voltage: 20.4 VDC to 26.4 VDC, internal impedance: approx. 2.8 k
Feedback/reset input

Ω

Outputs

Item G9SX-AD322-@/ADA222-@ G9SX-BC202-@

Instantaneous safety output
OFF-delayed safety output (See note 1.)

Auxiliary output PNP transistor output

Note: 1. While safety outputs are in the ON state, the following signal sequence is output continuously for diagnosis. When using the safety outputs

as input signals to control devices (i.e. Programmable Controllers), consider the OFF pulse shown below.

ON

OFF

360 µs max.

2. The following derating is required when Units are mounted side-by-side.

G9SX-AD322-@/G9SX-ADA222-@/G9SX-BC202-@: 0.4 A max. load current

P channel MOS FET transistor output
Load current:

Using 2 outputs or less: 1 A DC max. (See note 2.)
Using 3 outputs or more: 0.8 A DC max.

Load current: 100 mA max.

Approx. 100 ms

P channel MOS FET transistor output
Load current:

Using 1 output: 1 A DC max. (See note 2.)
Using 2 outputs: 0.8 A DC max.

Flexible Safety Unit G9SX 3

Expansion Unit

Item G9SX-EX-@

Rated load 250 VAC, 3A/30 VDC, 3A (resistive load)
Rated carry current 3 A
Maximum switching voltage 250 VAC, 125 VDC

■ Characteristics

Item G9SX-AD322-@/ADA222-@ G9SX-BC202-@ G9SX-EX-@

Over-voltage category (IEC/EN 60664-1) II II (Safety relay outputs 13 to

Operating time (OFF to ON state)
(See note 1.)

Response time (ON to OFF state)
(See note 1.)

ON-state residual voltage 3.0 V max. (safety output, auxiliary output)
OFF-state leakage current 0.1 mA max. (safety output, auxiliary output)

Maximum wiring length of safety input and
logic AND input

Reset input time (Reset button pressing time) 100 ms min.
Accuracy of OFF-delay time (See note 5.) Within

Insulation
resistance

Dielectric
strength

Vibration resistance Frequency: 10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double amplitude)

Mechanical
shock
resistance

Durability Electrical --- 100,000 cycles min.

Ambient temperature
Ambient humidity 25% to 85%
Terminal tightening torque (See note 6.) 0.5 N·m
Weight Approx. 200 g Approx. 125 g Approx. 165 g

Between logical AND connection
terminals, and power supply
input terminals and other input
and output terminals connected
together

Between all terminals connected
together and DIN rail

Between logical AND connection
terminals, and power supply
input terminals and other input
and output terminals connected
together

Between all terminals connected
together and DIN rail

Between different poles of
outputs

Between safety relay outputs
connected together and other
terminals connected together

Destruction

Malfunction

Mechanical --- 5,000,000 cycles min.

50 ms max. (Safety input: ON)
(See note 2.)

100 ms max. (Logical AND
connection input: ON) (See
note 3.)

15 ms max. 10 ms max. (See note 4.)

100 m max.
(External connection impedance: 100

± 5% of the set value --- Within ± 5% of the set value

20 M

Ω min. (by 100 VDC

megger)

500 VAC for 1 min --- ---

--- ---

2

300 m/s

2

100 m/s

−10 to 55°C (no icing or condensation)

50 ms max. (Safety input: ON) 30 ms max. (See note 4.)

Ω max. and 10 nF max.)

--- ---

Ω min. (at 100 VDC) 100 MΩ min. (at 500 VDC)

20 M

500 VAC for 1 min 1,200 VAC for 1 min

43 and 14 to 44: III)

2,200 VAC for 1 min

(rated load, switching
frequency: 1,800 cycles/hour)

(switching frequency: 7,200
cycles/hour)

Note: 1. When two or more Units are connected by logical AND, the operating time and response time are the sum total of the operating times

and response times, respectively, of all the Units connected by logical AND.

2. Represents the operating time when the safety input turns ON with all other conditions set.

3. Represents the operating time when the logical AND input turns ON with all other conditions set.

4. This does not include the operating time or response time of Advanced Units that are connected.

5. This does not include the operating time or response time of internal relays in the G9SX-EX-@.

6. For the G9SX-@-RT (with screw terminals) only.

4 Flexible Safety Unit G9SX

Logical AND Connection

Item G9SX-AD322-@/ADA222-@ G9SX-BC202-@ G9SX-EX-@

Number of Units connected per
logical AND output

Total number of Units connected
by logical AND (See note 2.)

Number of Units connected in
series by logical AND

Max. number of Expansion Units
connected (See note 3.)

Maximum cable length for logical
AND input

Note: 1. See Logical AND Connection Combinations below for details.

2. The number of G9SX-EX401-@ Expansion Units or G9SX-EX041-T-@ Expansion Units (OFF-delayed Model) not included.

3. G9SX-EX401-@ Expansion Units and G9SX-EX041-T-@ Expansion Units (OFF-delayed Model) can be mixed.

4 Units max. ---

20 Units max. ---

5 Units max. ---

--- 5 Units

100 m ---

Logical AND Connection Combinations

1. One logical AND connection output from an Advanced Unit

G9SX-AD can be logical AND connected to up to four Advanced
Units.

G9SX-AD

G9SX-ADG9SX-ADG9SX-ADG9SX-AD

2. Two logical AND outputs from a Basic Unit G9SX-BC can be
logical AND connected to up to eight Advanced Units.

G9SX-BC

G9SX-ADG9SX-ADG9SX-ADG9SX-AD

G9SX-AD

3. Two logical AND outputs from an Advanced Unit G9SX-ADA can
be logical AND connected to up to eight Advanced Units.

G9SX-ADA

G9SX-AD G9SX-AD G9SX-AD

G9SX-ADG9SX-ADG9SX-ADG9SX-AD

5. Two logical AND connection outputs, each from different
Advanced/Basic Units, can be logical AND connected to
a single G9SX-ADA Unit.

G9SX-BC G9SX-BC

G9SX-ADA

6. The largest possible system configuration contains a total of 20
Advanced and Basic Units. In this configuration, each Advanced
Unit can have up to five Expansion Units.

Note 1: Basic Unit = G9SX-BC

Advanced Unit
or Basic Unit

Advanced Unit Advanced Unit Advanced Unit

Advanced Unit Advanced Unit Advanced Unit

Advanced Unit Advanced Unit Advanced Unit

Advanced Unit = G9SX-AD or G9SX-ADA
Note 2: The G9SX-AD322-T-@ has only one logical AND
output.

Advanced UnitAdvanced Unit Advanced Unit

Advanced Unit

Number of Units connected
per logical AND output:
4 Units max.

Advanced Unit

Advanced Unit

Advanced Unit

G9SX-AD

G9SX-AD G9SX-AD G9SX-AD

4. Any Advanced Unit with logical AND input can be logical AND
connected to Advanced Units on up to five tiers.

G9SX-BC or

G9SX-AD or

G9SX-ADA

G9SX-AD

G9SX-AD

G9SX-AD

G9SX-AD

Advanced Unit Advanced Unit Advanced Unit

Number of Units connected
in series by logical AND:
5 Units max.

Flexible Safety Unit G9SX 5

Total number of Units
connected by logical AND:
20 Units max.

Response Time and Operating Time

The following table shows the response time for two or more Units that are logical AND connected.

Item Block flow diagram Max. response

Tier
First tier 15 ms 25 ms 50 ms 80 ms

Advanced Unit or Basic Unit

Second tier 30 ms 40 ms 150 ms 180 ms

Advanced Unit

Third tier 45 ms 55 ms 250 ms 280 ms

Advanced Unit

Fourth tier 60 ms 70 ms 350 ms 380 ms

Advanced Unit

Fifth tier 75 ms 85 ms 450 ms 480 ms

Advanced Unit

time (not

including

Expansion

Units)

(See note 1.)

Max. response

time (including

Expansion

Units)

(See note 2.)

Max. operating

time (not
including

Expansion

Units)

(See note 3.)

Max. operating
time (including

Expansion

(See note 4.)

Units)

Note: 1. The maximum response time (not including Expansion Units) in this block flow diagram is the time it takes the output from the Unit on the

lowest tier to switch from ON to OFF after the input to the Unit on the highest tier switches from ON to OFF.

2. The maximum response time (including Expansion Units) in this block flow diagram is the time it takes the output from the Expansion Unit
connected to the Unit on the lowest tier to switch from ON to OFF after the input to the Unit on the highest tier switches from ON to OFF.

3. The maximum operating time (not including Expansion Units) in this block flow diagram is the time it takes the output from the Unit on
the lowest tier to switch from OFF to ON after the input to the Unit on the highest tier switches from OFF to ON.

4. The maximum operating time (including Expansion Units) in this block flow diagram is the time it takes the output from the Expansion
Unit connected to the Unit on the lowest tier to switch from OFF to ON after the input to the Unit on the highest tier switches from OFF to
ON.

6 Flexible Safety Unit G9SX

Connections

(

)

(

)

■ Internal Connection

G9SX-AD322-@ (Advanced Unit)

T11A1 T12 T21 T22 T31 T32 T33 Y1 T41 T42

(See
note 1.)

Safety

Power

Input 1

supply

circuit

S14A2S24 S34 S44 S54

Reset/Feedback

Safety
Input 2

Safety output control

See note 3.

Input

output control

L1 X1 X2

Cross

fault

detection

input

Auxiliary

Logical AND input

Expansion Unit

output control

Note: 1. Internal power supply circuit is not isolated.

2. Logical AND input is isolated.

3. Outputs S14 to S54 are internally redundant.

G9SX-BC202-@ (Basic Unit)

T11A1T12 T21 T22 T31 T32 T33

(See

Power
supply
circuit

note 1.)

Safety

Safety

Input 2

Input 1

Safety outputs control

Reset/Feedback

S14A2S24 L1 L2

See note 2.

Note: 1. Internal power supply circuit is not isolated.

2. Outputs S14 and S24 are internally redundant.

Input

outputs control

Y1

Cross

detection

Auxiliary

X1 X2

fault
input

(See note 2.)

G9SX-ADA222-@ (Advanced Unit)

T41 T42

Logical

AND input

Expansion Unit

output control

T51 T52

AND input 2

T11A1 T12 T21 T22 T31 T32 T33 Y1

(See

Power

supply

circuit

note 1.)

Safety

Safety

Input 1

Input 2

Safety output control

S14A2S24 S44 S54

(See note 3.)

Reset/Feedback

Cross

fault

detection

Input

input

Auxiliary

output control

L1 L2 X1 X2

Note: 1. Internal power supply circuit is not isolated.

2. Logical AND inputs are isolated.

3. Outputs S14 to S54 are internally redundant.

Logical

(See
note

2.)

G9SX-EX401-@/G9SX-EX041-T-@ (Expansion
Unit / Expansion Unit OFF-delayed model)

A1

(See
note 1.)

Exp.
sig.
IN

Power

supply

circuit

Safety
output
control

Auxiliary

output
control

A2 X2

Note: 1. Internal power supply circuit is not isolated.

2. Relay outputs are isolated.

K1

13 23 33 43

K2

14 24 34 44

(See note 2.)

Exp.

sig.

OUT

Flexible Safety Unit G9SX 7

Dimensions

yp

yp

yp

Note: All units are in millimeters unless otherwise indicated.

Advanced Unit

G9SX-AD322-@

T33T31

T32

FB

PWR

T1

T2

AND

EI

ED

1.5

2

1

3

0.7
4

0.6
5

0.5

ERR

7

10

0.3

0.2

15

0

OFF-DELAY

S54S44S34S24S14 L1

35.5 max.
(35)*

ical dimension

A1X2X1Y1T12T11

No.

A2T42T41T22T21

(10)

Note: 1. Above outline drawing is for -RC terminal type.

2. For -RC terminal type only.

G9SX-AD322-T15
24VDC

0.4

* T

115 max.

(6) (See note 2.)

100 max.

(6) (See note 2.)

Terminal arrangement

T33T32T31

X1Y1

T12T11

T1

AND

EIT2ED

T21

T22

S14

S24

X2 A1

FBPWR

ERR

T41

T42L1A2

S44

S34 S54

G9SX-ADA222-@

A

N

D

1

A

N

D

2

G9SX-ADA222-T150

Basic Unit

G9SX-BC202-@

T32 T52T51

G9SX-ADA222-T150
24VDC

PWR

T1

AND1

EI

1.5

1

0.7

0.6

0.5

0.4

0.3

0.2

0

OFF-DELAY

35.5 max.

ical dimension

* T

G9SX-BC202
24VDC

PWR

T1 T2

23 max.

(22.5)*

* T

T33T31

A1X2X1Y1T12T11

FB

T2

AND2

ED

2

3

4
5

ERR

7

10

15

No.

A2T42T41T22T21

L1S54S44S24S14 L2

(35)*

Y1T32 T33T31
A1X1T12T11

FB

ERREI

No.

A2X2T22T21
L2L1S24S14

ical dimension

(6) (See note 2.)

100 max.

(10)

Note: 1. Above outline drawing is for -RC terminal type.

2. For -RC terminal type only.

115 max.

(6) (See note 2.)

(6) (See note 2.)

100 max.

Note: 1. Above outline drawing is for -RC terminal type.

115 max.

(6) (See note 2.)

2. For -RC terminal type only.

Terminal arrangement

T52T51

T33T32T31

X1Y1

T12T11

X2 A1

FBPWR

T1

AND2

AND1

EIT2ED

ERR

T22
S24

S44

T41
S54

T42
L1

A2
L2

T21
S14

Terminal arrangement

T33T32T31

Y1
A1X1

T12T11

FBPWR

T1

T2

EI

ERR

T22L1X2
S24

A2

L2

T21
S14

8 Flexible Safety Unit G9SX

Expansion Unit

)

G9SX-EX401-@

Expansion Unit (OFF-delayed Model)

G9SX-EX041-T-@

(6) (See note 2.)

Terminal arrangement

G9SX-EX401-@

(Expansion Unit)

G9SX-EX041-T-@

(Expansion Unit
with OFF Delay)

43332313

G9SX-EX401
24VDC

A2X2A1
44342414

23 max.

(22.5)*

* Typical dimension

100 max.

Note: 1. Above outline drawing is for -RC terminal type.

2. For -RC terminal type only.

115 max.

(6) (See note 2.

PWR

EI

ERR

14 24A134

43332313

A2

X2

44

14 24A134

PWR

ED

ERR

43332313

A2

X2

44

Flexible Safety Unit G9SX 9