Omron G9SA - User manual
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Find the OMRON G9SA-301 at our website: Click HERE
Safety Relay Unit
G9SA
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 standards. (BG approval)
• Certified by UL and CSA.
• Both DIN track mounting and screw mounting are possible.
Note: Be sure to read the “Safety Precautions” on page 13.
Ordering Information
Emergency-stop Units
Emergency-stop OFF-delay Units
Note: 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
Expansion Unit
The Expansion Unit connects to a G9SA-301, G9SA-501, G9SA-321, or G9SA-TH301.
Main contacts Auxiliary contact Number of input channels Rated voltage Model Category
3PST-NO SPST-NC 1 channel or 2 channels possible 24 VAC/VDC G9SA-301 4
100 to 240 VAC
5PST-NO 24 VAC/VDC G9SA-501
100 to 240 VAC
Main contacts OFF-delay
contacts
Auxiliary
contact
Number of
input channels
OFF-delay
time
Rated voltage Model Category
3PST-NO DPST-NO SPST-NC 1 channel or
2 channels
possible
7.5 s 24 VAC/VDC G9SA-321-T075 Main contacts:
4
OFF-delay
contacts:
3
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
Main contacts Auxiliary contact Number of input channels Rated voltage Model Category
3PST-NO SPST-NC 2 channels 24 VAC/VDC G9SA-TH301 4
100 to 240 VAC
Main contacts Auxiliary contact Model Category
3PST-NO SPST-NC G9SA-EX301 4
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G9SA
Expansion Units with OFF-delay Outputs
The Expansion Unit connects to a G9SA-301, G9SA-501, G9SA-321, or G9SA-TH301.
Note: 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
Model Number Structure
■Model Number Legend
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 (for G9SA-301/501/321)
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
Main contact form Auxiliary contact OFF-delay time Model Category
3PST-NO SPST-NC 7.5 s G9SA-EX031-T075 3
15 s G9SA-EX031-T15
30 s G9SA-EX031-T30
1 2 3 4 5 6
G9SA-@@@@@@-@@@@
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G9SA
Specifications
■Ratings
Power Input
Note: When an Expansion Unit is connected, the power consumption is increased by 2 VA/2 W max.
Inputs
Note: When an Expansion Unit is connected, the input current is increased by 30 mA max.
Contacts
■Characteristics
Note: 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 35qC 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.
Item 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
(See note.)
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.
Item G9SA-301/321-T@/TH301 G9SA-501
Input current (See note.) 40 mA max. 60 mA max.
Item 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
Item G9SA-301/TH301 G9SA-501/321-T@G9SA-EX301/EX031-T@
Contact resistance (See note 1.) 100 m:
Operating time (See note 2.) 30 ms max.
Response time (See note 3.) 10 ms max.
Insulation resistance (See note 4.) 100 M: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/s2
Malfunction 100 m/s2
Durability
(See note 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 55qC (with no icing or condensation)
Ambient operating humidity 35% to 85%
Terminal tightening torque 0.98 N·m
Weight (See note 6.) Approx. 210 g Approx. 270 g Approx. 130 g
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G9SA
Application Examples
G9SA-301 (24 VAC/VDC) with 2-channel Limit Switch Input/Auto-reset
G9SA-301 (24 VAC/VDC) with 2-channel Limit Switch Input/Manual Reset
Timing Chart
Limit switches
S1 and S2
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
S1: Safety Limit Switch
with direct opening mechanism (NC)
(D4B-N, D4N, D4F)
S2: Limit switch (NO)
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
Note: This circuit achieves EN954-1
Safety Category 4.
TH
SA
Feedbackloop
Open
Control
circuit
Timing Chart
PLC input
PLC output
KM3
Limit switches
S1 and S2
Reset switch
S3
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
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
KM3: G3J Solid-state Contactor (G3J)
M: 3-phase motor
Note: This circuit achieves EN954-1
Safety Category 4.
TH
SA
Open
Feedbackloop
Control
circuit
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G9SA
G9SA-301 (100 to 240 VAC) with 2-channel Limit Switch Input/Auto-reset
G9SA-301 (24 VAC/VDC) with 2-channel Emergency Stop Switch Input/Manual
Reset
Feedback loop
Timing Chart
Open
Limit switches
S1 and S2
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
S1: Safety Limit Switch
with direct opening mechanism (NC)
(D4B-N, D4N, D4F)
S2: Limit switch (NO)
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
AC
DC
Control
circuit
Note: This circuit achieves EN954-1
Safety Category 4.
Feedback loop
Timing Chart
PLC input
PLC output
KM3
Control
circuit
Emergency
stop switch S1
Reset switch
S2
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
S1: Emergency stop switch
with direct opening mechanism
(A165E or A22E)
S2: Reset switch
KM1 and KM2: Magnetic Contactor
KM3: G3J Solid-state Contactor (G3J)
M: 3-phase motor
Note: This circuit achieves EN954-1
Safety Category 4.
TH
SA
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
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G9SA
G9SA-321-T@(24 VAC/VDC) with 2-channel Limit Switch Input/Manual Reset
Feedback loop
Motor controller
Timing Chart
Motor rotation
OFF-dela
y
time
Open
Off delay
timer
Control
circuit
Operation
instruction
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
K1 and K2
(NC)
K1 and K2
(NO)
K3 and K4
(NC)
K3 and K4
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
Operation
instruction
Note: This circuit achieves EN954-1 Safety Category 4.
The OFF-delay output, however, achieves EN954-1
Safety Category 3.
TH
SA
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
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G9SA
G9SA-321-T@(24 VAC/VDC) + G9SA-EX031-T@with 2-channel Limit Switch Input/
Manual Reset
Feedback loop
Motor controller
Timing Chart
OFF-delay time 1
OFF-delay time 2
Open
Motor controller
Off delay
timer
Control
circuit
Off delay
timer
Operation
instruction
Operation
instruction
S1: Safety Limit Switch
with direct opening mechanism (NC)
(D4B-N, D4N, D4F)
S2: Limit switch (NO)
S3: Reset switch
KM1, KM2,
KM3, and KM4:Magnetic Contactor
M1, M2: 3-phase motor
Limit switches
S1 and S2
Reset switch
S3
G9SA-321-T@
K1 and K2 (NC)
G9SA-321-T@
K1 and K2 (NO)
G9SA-321-T@
K3 and K4 (NC)
G9SA-321-T@
K3 and K4 (NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
Operation
instruction
Motor M1
rotation
G9SA-EX031
K1 and K2 (NC)
G9SA-EX-031
K1 and K2 (NO)
KM3 and KM4
(NC)
KM3 and KM4
(NO)
Operation
instruction
Motor M2
rotation
Note: This circuit achieves EN954-1 Safety Category 4.
The OFF-delay output, however, achieves EN954-1
Safety Category 3.
TH
SA
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G9SA
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
F3SN-A Incident
Interrupted
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
F3SN-A: Safety area 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)
(See
note 2.)
RS-485(B) (Pink)
Note: 1. This circuit achieves EN954-1 Safety Category 4.
2. The F3SN-A auxiliary output wiring is shown for dark-ON
operation.
TH
SA
F3SN-A
ReceiverEmitter
Control
circuit
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G9SA
G9SA-TH301 (24 VDC) with 2-hand Inputs/Auto-reset
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 EN954-1
Safety Category 4.
(See note 1.)
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