Panasonic SF4C Series - Muting Function

SF4C Safety light curtain
3.8 Muting Function
75
3.8 Muting Function
!
DANGER!
Incorrect use of the muting function may cause accidents.
Please study the muting function carefully before you use it.
Use the muting function while the machine cycle is not in
danger mode. Maintain safety by using other measures
while the muting control is activated.
For applications where the muting function is used when a
work piece passes through, place the muting sensors at
such a distance so that personnel do not accidentally
activate the muting function.
Be sure to check that the muting function is working
properly before you use it in live operation. Check the state
of the muting lamp for cleanliness, brightness, etc.
Always connect a muting lamp and use the preset muting
lamp diagnosis function.
Install the muting lamp in a position where it can always be
seen by operators who configure or adjust the machine.
The muting function deactivates the safety function of the light curtain temporarily. You can
activate the muting function only if no workpiece is in the sensing area, this means the control
outputs (OSSD 1, OSSD 2) have to be ON.
This function is useful for passing workpieces through the sensing area of the light curtain
without stopping the machinery.
The muting function complies with the requirements defined in the following
international standards:
• ISO 13849-1 (EN 954-1/JIS B 9705-1): 'Safety of machinery - Safety-related
parts of control systems - Part 1: General principles for design, Article 5.9
Muting'
• IEC 61496-1 (UL 61496/JIS B 9704-1): 'Safety of machinery - Electro sensitive
protective equipment - Part 1: General requirements and tests' Annex A, A.7
Muting
• IEC 60204-1 (JIS B 9960-1): 'Safety of machinery - Electrical equipment of
machines - Part 1: General requirements, 9.2.4 Overriding safeguards'
• EN 415-4: 'Safety of packaging machines part 4. Palletizers and depalletizers'
Annex A, A2.2 Muting'
• ANSI B11.19-1990: 'for Machine Tools-Safeguarding When Referenced by the
Other B11 Machine Tool Safety Standards-Performance Criteria for the
Design, Construction, Care, and Operation' 4.2.3 Presence-Sensing Devices:
Electro-Optical and Radio Frequency (R.F.)
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