Safety Guard Switching Unit

G9SX-GS

A Safety Measure for Hazardous Operations That Does Not Lower Productivity

Ratings
Power Input
Model
G9SX-GS226-T15-[]
G9SX-EX-[]
Rated supply voltage
24 VDC
Operating voltage range
-15% to 10% of rated supply voltage
Rated power consumption *
5 W max.
2 W max.
* Power consumption of loads not included.
Inputs
Model
G9SX-GS226-T15-[]
Safety inputs
Operating voltage: 20.4 VDC to 26.4 VDC, Internal impedance: Approx. 2.8 *
Mode selector input
Feedback/reset input
* Provide a current equal to or higher than that of the minimum applicable load of the connected input control device.
Outputs
Model
G9SX-GS226-T15-[]
Instantaneous safety outputs *1
OFF-delayed safety outputs *1
P channel MOS-FET outputs
Load current: 0.8 A DC max./output *2
Auxiliary outputs
(for input, output, and error monitoring)
PNP transistor outputs
Load current: 0.8 A DC max./output *2
External indicator outputs
P channel MOS-FET outputs
Connectable indicators

• Incandescent lamp: 24 VDC, 3 to 7 W

• LED lamp: 10 to 300
mA DC/output
*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.
*2. The following derating is required when Units are mounted side-by-side.
        G9SX-GS226-T15-[]: 0.4
A max. load current/output
Expansion Unit
Model
G9SX-EX-[]
Rated load
250 VAC, 3 A/30 VDC, 3 A (resistive load)
Rated carry current
3 A
Maximum switching voltage
250 VAC, 125 VDC
Characteristics
Model
G9SX-GS226-T15-[]
G9SX-EX-[]
Overvoltage category
(IEC/EN 60664-1)
II
II (Safety relay outputs 13 to 43 and
14 to 44: III)
Operating time
(OFF to ON state) *1
50 ms max. (Safety input: ON) *2
100 ms max. (Logical AND connection

input: ON) *3
30 ms max. *4
Response time
(ON to OFF state) *1
15 ms max.
10 ms max. *4
Allowable switching time for mode
selector input *5 *7
450 ms max.
---
Response time for switching
operating modes *6 *7
50 ms max.
---
ON-state residual voltage
3.0 V max. for safety outputs, auxiliary outputs, and external indicator outputs
OFF-state leakage current
0.1 mA max. for safety outputs and auxiliary outputs, 1 mA max. for external
indicator outputs
Maximum wiring length of safety
input and logical AND input
100 m max.
(External connection impedance: 100 Ω max. and 10
nF max.)
Reset input time
(Reset button pressing time)
100 ms min.
Accuracy of OFF-delay time *8
Within ± 5% of the set value
Insulation
resistance
Between logical AND
connection terminals,

and power supply

input terminals and

other input and

output terminals

connected together
20 MΩ min. (at 100 VDC)
---
Between all terminals
connected together

and DIN track
100 MΩ min. (at 500 VDC)
Dielectric
strength
Between logical AND
connection terminals,

and power supply

input terminals and

other input and

output terminals

connected together
500 VAC for 1 min
---
Between all terminals
connected together

and DIN track
1,200 VAC for 1 min
Between different
poles of outputs
---
Between safety relay
outputs connected

together and other

terminals connected

together
2,200 VAC for 1 min
Vibration resistance
Frequency: 10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double
amplitude)
Shock
resistance
Destruction
300 m/s2
Malfunction
100 m/s2
Durability
Electrical
---
100,000 cycles min.
(rated load, switching frequency: 1,800

cycles/hour)
Mechanical
---
5,000,000 cycles min.
(switching frequency: 7,200 cycles/

hour)
Ambient operating temperature
- 10 to 55 °C (with no icing or condensation)
Ambient operating humidity
25% to 85%
Terminal tightening torque *9
0.5 Nm
Weight
Approx. 240 g
Approx. 165 g
*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 Safety Guard Switching Units that are connected.

*5. This is the allowable switching time for the operating mode selector. If switching takes more than 450 ms, the G9SX-
GS[] will detect an error.
*6. This is the time required for the safety input to actually switch to an activated condition after the mode selector input is

       switched.
*7. Only when the G9SX-GS[] is used with manual switching.
*8. This does not include the operating time or response time of internal relays in the G9SX-EX-[].

*9. For the G9SX-[]-RT (with screw terminals) only.
Logical AND Connection
Note: Please see “Ordering Information” below for the actual models that can be ordered.
Model
G9SX-GS226-T15-[]
G9SX-EX-[]
Number of Units connected per logical AND output
4 Units max.
---
Total number of Units connected by logical AND *1
20 Units max.
---
Number of Units connected in series by logical AND
5 Units max.
---
Max. number of Expansion Units connected *2
---
5 Units max.
Maximum cable length for logical AND input
100 m max.
---
*1. The number of G9SX-EX401-[] Expansion Units or G9SX-EX041-T-[] Expansion Units (OFF-delayed Model) not included.
*2. G9SX-EX401-[] Expansion Units and G9SX-EX041-T-[] Expansion Units (OFF-delayed Model) can be mixed.