Omron Sti F3SJ-A 01TS Series, Quick Installation Manual

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F3SJ-A-01TS
Quick Installation Manual
5. Mounting and Beam Alignment
For brackets other than those included in the product (F39-LJ1/F39-LJ3) as well as external dimensions and mounting, refer to
F3SJ-A-01TS series user's manual
.
5-1. Mutual Interference Prevention
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Series Connection
Series connection can prevent mutual interference when multiple sensors are used. Up to 3 sets, 240 beams,
can be connected. The emission of series-connected F3SJ-A-01TS is time-divided, so mutual interference
does not occur and safety is ensured.
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No Connection
Mutual interference is prevented in up to 3 sets, using interference light avoidance algorithm. If 4 or more
sets of F3SJ-A-01TS are installed and are not connected to each other, arrange them so that mutual interfer-
ence does not occur. If 2 sets are installed near each other, reflection from the surface of the F3SJ-A-01TS
may cause mutual interference. When mutual interference occurs, the safety outputs are turned OFF in a
moment or the F3SJ-A-01TS enters lockout. Combining countermeasures 1 to 4 shown below is effective.
1. Install a physical barrier between 2 sets
2. Alternate the direction of emission between 2 sets (alternation) If 2 sets are installed near each other,
reflection from the surfaces may cause mutual interference. For such a case, it can be improved by
reducing operating range through the setting tool (see Step 3).
3. Reducing operating range (setting change by the setting tool is required)
4. Keep sufficient distance between the F3SJ-A-01TSs so that mutual interference does not occur
5-2. Distance from Reflective Surfaces
Install the sensor system at distance D or further from highly reflective surfaces such as metallic walls, floors,
ceilings, or workpieces, as shown below.
5-3. Safety Distance
How to calculate the safety distance specified by International Standard ISO 13855(European standard EN
ISO 13855)(Reference)
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If a person approaches the detection zone of the F3SJ-A-01TS perpendicularly
S = K x T + C . . . Formula (1)
• S: Safety distance
• K: Approach speed to the detection zone
• T: Total response time of the machine and F3SJ-A-01TS
• C: Additional distance calculated by the detection capability of the F3SJ-A-01TS
<System that has detection capability of 40mm or less>
Use K = 2,000mm/s and C = 8 x (d - 14mm) in formula (1)
for the calculation.
S = 2,000mm/s x (Tm + Ts) + 8 x (d - 14mm)
• S = Safety distance (mm)
• Tm = Machine's response time (s)
• Ts = Response time of the F3SJ-A-01TS from ON to OFF (s)
• d = Detection capability of the F3SJ-A-01TS (mm)
<A system with larger detection capability than 40mm>
Calculate by using Formula (1) with K = 1,600mm/s and C = 850mm:
S = 1,600mm/s x (Tm + Ts) + 850 . . . Formula (4)
• S = Safety distance (mm)
• Tm = Response time of the machine (s)
• Ts = F3SJ-A-01TS's response time from ON to OFF (s)
Please refer to the user's manual for calculation of following safety distance.
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Possible circumventing by reaching over the detection zone
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In case of horizontal approach of a human body to F3SJ-A-01TS's detection zone
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How to calculate the safety distance specified by American standard ANSI B11.19(reference)
L
D
D
L
D
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Detection zone
Emitter Receiver Emitter Receiver
Reflective ceiling
Reflective floor
Reflective surface
Distance between an emitter
and a receiver
(operating range L)
Allowable installation
distance D
For 0.2 to 3m 0.13m
For 3m or more L/2 x tan5 ° = L x 0.044 (m)
Hazard
Safety distance (S)
Mounting/Beam Alignment Function Selection
Pre-Operation Checklist /
Maintenance Checklists