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6 WIRING
6.5 Installation of Muting Sensors
107
6
Optical sensors
When optical sensors are used for muting sensors, install the sensors with background suppression so that only materials to
be transported can meet the muting condition.
By using the optical sensors with background suppression, these can detect material only up to a specific distance.
Objects that are further than the material to be detected are not detected.
Cross muting
In the following example, the material moves from left to right or, alternatively, from right to left.
As soon as the muting sensors A1 and A2 are activated, a protection function provided by the protective equipment (ESPE) is
temporality disabled.
The following conditions are required to be met.
*1 S1: Minimum distance between the light beams on the ESPE and the detection by the muting sensors (mm)
*2 v: Velocity of the material (conveyor) (m/s)
In order for materials to be conveyed in both directions, place the muting sensors so that the intersection of the muting
sensors (
) is exactly on the course of the light beams on the protective equipment (ESPE).
In order for materials to be conveyed in only one direction, place the muting sensors so that the intersection of the muting
sensors is behind the light beams on the protective equipment (ESPE) seen from the conveyor direction.
This placement is suitable for through-beam photoelectric switches and photoelectric reflex switches.
(1): Optical sensors with background suppression
(2): Detection zone
A: Material is detected.
B: Material is not detected.
(1): Hazardous area
S1: Minimum distance between the detection line of the ESPE and the detection line of the muting sensors A1 and A2
S2: Distance between two detection lines of the muting sensors
S3: Length of the material
Condition
1
A1 & A2: Muting applies as long as this condition is met.
2
Minimum distance: S1
≥
v
×
61 (ms)
(1)
A
B
(2)
Ò
ESPE
S
2
S
1
S
3
A
1
A
2
(1)
Summary of Contents for MITSUBISHI ELECTRIC MELSEC iQ-F FX5
Page 2: ......
Page 29: ...1 OVERVIEW 27 1 MEMO ...
Page 40: ...38 3 PROCEDURES BEFORE OPERATION MEMO ...
Page 90: ...88 5 SYSTEM CONFIGURATION MEMO ...
Page 112: ...110 7 PARAMETER SETTINGS 7 1 Refresh Setting MEMO ...
Page 117: ...9 COMMISSIONING 9 2 Considerations for Inspection 115 9 MEMO ...
Page 171: ...I 169 MEMO ...
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