Omron Sti G9SX-LM224-F10 Series User Manual page 11

Shape of Cogwheel and Setting of Proximity Sensors
8

Relationship between the cogwheel shape and the setting of proximity sensors
• For safe and stable detection of a rotating cogwheel, design of the cogwheel and setting of the proximity sensors should satisfy the following
requirements.
- Either one proximity sensor is turned ON.
- If neither sensor has detected any movement for more than 1 second, G9SX-LM will detect it as an error.
- All cogwheel tooth should be identically shaped.
- The following tables show data for iron cogwheels.
- For further details of the handling of proximity sensors, refer to the operation manual or related documents attached to the proximity sensors (E2E).
• Please connect two proximity sensors of the same type.
• While operation is stopped, consideration must be given so that the cogwheel and proximity sensor do not vibrate due to vibration of the device.
Otherwise the proximity sensor may detect vibration of the cogwheel, resulting in the safety outputs of G9SX-LM
Take appropriate measures to keep vibration of the cogwheel at 1Hz max.
• At the following, G9SX-LM
blinks.
- When the rotation of the cogwheel is stopping, and both proximity sensors are turning on.
M 
5
M 
3
*1. It is a size when the proximity sensors are arranged in parallel.

Relationship between Revolution (rpm) and Frequency
A frequency can be calculated from rpm, as shown in the equation below;
rpm x 1/60 x the number of cogwheel teeth detected by Proximity sensor = Frequency (Hz)

Ex. Low-speed monitoring frequency
With a Low-speed rpm of 50 and 6 cogwheel teeth detected by Proximity sensor,
Frequency = 50 rpm x 1/60 x 6 = 5Hz
Be sure to set the Low-speed monitoring frequency to 6.0Hz or above, considering the accuracy tolerance of the Low-speed monitoring frequency
(within 0 to -10%).

Relationship between Motor, Cogwheel, and Hazard source.
The cogwheel should be attached to the shaft mechanically linking the motor to the hazard source.
The cogwheel should be placed between the motor and the hazard source.
OMRON Corporation (Manufacturer)
Shiokoji Horikawa, Shimogyo-ku, Kyoto, 600-8530
JAPAN
OMRON EUROPE B.V. (Importer in EU)
Wegalaan 67-69, NL-2132 JD Hoofddorp
THE NETHERLANDS
PHONE: 31-2356-81-300 FAX: 31-2356-81-388
OMRON ELECTRONICS LLC
2895 Greenspoint Parkway, Suite 200
Hoffman Estates, IL 60169 U.S.A.
PHONE: 1-847-843-7900 FAX: 1-847-843-7787

diagnoses the proximity sensors. In that case, it is not abnormal though the operation indicator of the proximity sensor
Shielded
1
UnShielded
2
Shielded
UnShielded
4
Size
Model
Sensing distance
Distance of Convexity
1
Distance of Concavity
2
Size
Model
Sensing distance
Distance of Convexity
1
Distance of Concavity
2
Size
Model
Concavity Width
3
Convexity Width
4
Sensing distance (*1)
5
Size
Model
Concavity Width
3
Convexity Width
4
Sensing distance (*1)
5
OMRON ASIA PACIFIC PTE. LTD.
438A Alexandra Road # 05-05/08,
Alexandra Technopark Singapore 119967
SINGAPORE
PHONE: 65-6-835-3011 FAX: 65-6-835-2711
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China
PHONE 86-21-5037-2222 FAX 86-21-5037-2200
Note: Specifications subject to change without notice.
- 11 -

being turned OFF .
M8 M12
E2E-X1R5F1  E2E-X2F1 
1.5mm 2mm
1.2mm max 1.6mm max
4.5mm min 8mm min
M8 M12
E2E-X2MF1  E2E-X2F1 
2mm 5mm
1.6mm max 4mm max
8mm min 20mm min
M8 M12
E2E-X1R5F1  E2E-X2F1 
16mm min 24mm min
Concavity Width twice distance min/Concavity Width six distance max
15mm min
20mm min
M8 M12
E2E-X2MF1  E2E-X5MF1 
24mm min 30mm min
Concavity Width twice distance min/Concavity Width six distance max
60mm min
100mm min
M18
E2E-X5F1 
5mm
4mm max
20mm min
M18
E2E-X10MF1 
10mm
8mm max
40mm min
M18
E2E-X5F1 
36mm min
35mm min
M18
E2E-X10MF1 
60mm min
110mm min