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18
Section 7: Muting and override functions
7-4
Criteria for installation
Take adequate care when installing the muting sensors to prevent undesired requests for muting:
1.
Wiring must be done correctly.
2.
The muting sensors must recognise the whole length of the material (i.e. pallets, vehicles...).
3.
The sensors must be arranged so that the material is also recognised if it has to be lifted for processing.
4.
The effect of various transportation speeds in the field of muting on the overall duration of muting must
be taken into account, if any.
5.
All the safety photocells and muting sensors must be arranged so that the previous material clears the
last muting sensor before the new material reaches the first sensors
Example of conveyor protection installation, which must allow a box to pass through but not a person. The
SLC S is connected to the control panel, and A1, A2, B1 and B2 are sensors used to enable muting. The
contacts for these sensors are controlled on the transceiver unit.
Sensors A1, A2, B1 and B2 can be optical, mechanical or proximity sensors etc., with closed contact in the
presence of the object to be detected.
The following drawings show several examples of configurations with the use of the muting function:
Application with four sensors - 'Bi directional muting'
B1
A2
A1
B2
Transceiver
A2
B2
S
B1
A1
D1
D2
D
Electrical connection of muting input
Muting input B (Yellow – 4)
Muting input A (Green – 3)
Input of A1 sensor
Input of A2 sensor
Input of B1 sensor
Input of B2 sensor
+24 VDC
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Содержание F3S-TGR-SB2-KXC
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