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USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
I
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Safety Relay Unit
• 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 standards (BG approval)
• Both DIN track mounting and screw mounting are possible
Safety Monitoring Relays
G9SA G9SA
Ratings
Power Input
G9SA-301/TH301 G9SA-501 G9SA-321-T□
Power supply voltage 24 VAC/VDC:24 VAC, 50/60 Hz, or 24 VDC
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.
100 to 240 VAC:
9 VA max.
24 VAC/VDC: 2.8 VA/
2.6 W max.
100 to 240 VAC:
11 VA max.
24 VAC/VDC: 3.5 VA/
3.3 W max.
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
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
G9SA-301/501/321-T□/TH301/EX301/EX031-T□
Resistive load
Rated load 250 VAC, 5 A
30 VDC, 5 A
Rated carry current 5 A
Specifications
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G9SA Safety Monitoring Relays
Characteristics
G9SA-301/TH301 G9SA-501/321-T□G9SA-EX301/EX031-T□
Contact resistance *1 100 mΩW
Operating time *2 30 ms max.
Response time *3 10 ms max.
Insulation resistance *4 100 MΩ min. (at 500 VDC)
Dielectric
strength
Between different outputs
2,500 VAC, 50/60 Hz for 1 min
Between inputs and outputs
Between power inputs and outputs
Between power inputs and other inputs
(only for 100 to 240-V models)
Vibration resistance 10 to 55 to 10 Hz, 0.375 mm single amplitude (0.75 mm double amplitude)
Shock
resistance
Destruction 300 m/s 2
Malfunction 100 m/s 2
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 icing or condensation)
Ambient operating humidity 35% to 85%
Terminal tightening torque 0.98 N·m
Weight *6 Approx. 210 g Approx. 270 g Approx. 130 g
*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.
Specifications (continued)
Applications
G9SA-TH301 (24 VDC) with 2-hand Inputs
C D
TH
SA
Feedback loop
S11 (NC)
S11 (NO)
Timing Chart
S12 (NC)
S12 (NO)
0.5 s max.
Control circuit
KM1 and KM2
(NC)
KM1 and KM2
(NO)
Input time difference operates only
when the difference is 0.5 s max.
S11, S12: Two-hand pushbutton switches
KM1 and KM2: Magnetic Contactor
Note: 1. Use a 1NC+1NO switch for S11
and S12.
2. This circuit achieves Safety
Category 4.
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G9SA Safety Monitoring Relays
Applications (continued)
G9SA-301 (24 VAC/VDC) with 2-channel Safety Sensor/Manual Reset
KM3
E1
Feedback loop
Reset switch S1
Timing Chart
PLC input
PLC output
KM3
F3SJ-A Incident
Interrupted
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
F3SJ-A: Safety sensor
S1: Reset switch
KM1 and KM2: Magnetic Contactor
KM3: G3J Solid-state Contactor (G3J)
M: 3-phase motor
E1: 24-VDC Power Supply (S82K)
Shield
0V (Blue)
OSSD2 (White)
OSSD1 (Green)
Auxiliary (Yellow)
EDM input (Red)
+24V (Brown)
+24V (Brown)
Open
Interlock selection
input (White)
Reset input (Yellow)
Test input (Green)
Open (Red)
0V (Blue)
Shield
RS-485(A) (Gray)
*
RS-485(B) (Pink)
Note: This circuit achieves Safety Category 4.
* The F3SJ-A auxiliary output wiring is shown for dark-ON operation.
TH
SA
F3SJ-A
ReceiverEmitter
Control
circuit
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I8
G9SA Safety Monitoring Relays
Feedback loop
Timing Chart
Open
Note: This circuit achieves Safety Category 4.
S1: Safety Limit Switch
with direct opening mechanism (NC)
(D4B-N, D4N, D4F)
S2: Limit switch (NO)
S3: Reset switch
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
Limit switches S1
and S2
Reset switch
S3
G9SA-501
K1, K2, K3 and
K4 (NC)
G9SA-501
K1, K2, K3, and
K4 (NO)
G9SA-EX301
K1 and K2 (NC)
G9SA-EX301
K1 and K2 (NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
TH
SA
Control
circuit
Applications (continued)
G9SA-501 (24 VAC/VDC) and G9SA-EX301 with 2-channel Limit Switch Input/Manual Reset
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I
I9
G9SA Safety Monitoring Relays
Dimensions and Terminal Arrangement (mm)
Terminal Arrangement
Mounting Holes
Two, 4.2 dia. or M4
Terminal Arrangement
Mounting Holes
Two, 4.2 dia. or M4
4.6 dia.
45 max.
76 max.
111 max.
4.6 dia.
111 max.
76 max.
17.5 max.
Connector cover *
Eight, M3
G9SA-301
G9SA-501
G9SA-321-T@
G9SA-TH301
G9SA-EX301
G9SA-EX031-T@
G9SA-301: Twenty, M3
G9SA-501: Twenty-four, M3
G9SA-321-T@: Twenty-four, M3
G9SA-TH301: Twenty-one, M3
(See note 1)
Note 1: The OFF-delay time setting switch is
found on the G9SA-321-T@ only.
OFF-delay time
setting switch
(See note 1)
G9SA-EX301
G9SA-EX031-T@
OFF-delay time
setting switch
(See note 1)
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.
Note 1: The OFF-delay time setting switch is
found on the G9SA-EX031-T@ only.
2: The K1 and K2 indicators light when
the NO contacts of internal relays K1
and K2 close.
13 23 33 41
14 24 34 42
T11 T12 T31 T32 T23
A1
T21 T22
A B PE A2
13 23 33 43 53 61
14 24 34 44 54 62
T11 T12 T31 T32 T23
A1
T21 T22
A B PE A2
13 23 33 41
14 24 34 D 42
T11 T12 T13 T31 T32
A1
T21 T22 T23
C PE A2
4363
9
35±0.3
7 × 5=35
5.9
R2.3 5
5.6
9
10.5
91
G9SA-301 G9SA-501
G9SA-321-T@
G9SA-TH301
(See note 1.)
84±0.3
PWR (green)
K1 (green)
K2 (green)
PWR (green)
K1 (green)
K2 (green)
PWR (green)
K1 (green)
K2 (green)
K3 (green)
K4 (green)
4133
2313
2414
4234
43
42
87±0.3
5.6
R2.3 5
70
63
9
13.2
10.5
91
5.9
7
PWR (green)
K1 (green)
K2 (green)
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USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
I
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G9SA Safety Monitoring Relays
Ordering
Model Number Legend
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
Specific Models
Emergency-stop Units
Main contacts Auxiliary contact Number of input channels Rated voltage Model
3PST-NO
SPST-NC 1 channel or 2 channels 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
contacts
Auxiliary
contact
Number of
input
channels
OFF-delay time Rated voltage Model
3PST-NO DPST-NO SPST-NC
1 channel or
2 channels
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
The Expansion Unit connects to a G9SA-301, G9SA-501, G9SA-321, or G9SA-TH301.
Main contacts Auxiliary contact Model
3PST-NO SPST-NC G9SA-EX301
Expansion Units with OFF-delay Outputs
The Expansion Unit connects to a G9SA-301, G9SA-501, G9SA-321, or G9SA-TH301.
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
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
Note: Call the factory for G9SA models designed for positive
ground system. These are available for 24 VDC only.
= Highlighted Rapid Delivery products are available for
shipment today or within FIVE days.
