Override Function - Panasonic SF4B V2 Series Instruction Manual

3-8 Override Function

The override function forcibly turns the safety function into invalid. This function is used for the
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the control output (OSSD 1 / 2) be OFF status, when the device is required to continue operat-
ing even though the muting sensor becomes valid after the muting sensor is turned ON at the
starting of line.
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The incandescent lamp with 3 to 10W shall be connected to the muting lamp output. (Note 1)
The signal shall be input to either muting input A or B, or to both of the inputs.
The override input shall be short-circuited to 0V or +V, and the emission halt input / reset
input shall be opened. (3 sec. continuously)
If one of the three conditions above becomes invalid or timing exceeds 60 sec. (Note 2), the
override function becomes invalid.
1RWHV  The muting lamp diagnosis function can be set with the handy controller Ver. 2 or later (SFB-HC) (optional).
If the muting lamp diagnosis function is set to be invalid, the muting function is maintained even if a
lamp blows or a lamp is not connected.
2) By using the handy controller Ver. 2.1 (SFB-HC) (optional), the timing can be changed in the range of
60 to 600 sec. in units of 10 sec.
3) The override function operates only when the auto-reset is ON (the interlock is invalid).
© Panasonic Industriar Devices SUNX Co., Ltd. 2012 ME-SF4BV2-05
Incorrect using of the muting control may cause any accident. Please under-
stand the muting control fully, and use it. As for the muting control, the following
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principles for design, Article 5.9 Muting"
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requirements and tests, Annex A, A.7 Muting"
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quirements, 9.2.4 Overriding safeguards"
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"For Industrial Robots and Robot Systems - Safety Requirements, 10.4.5 Muting"
Use the muting control while the machine cycle is not in danger mode. Maintain
safety with the other measure while the muting control is activated.
For the application that the muting control is activated when a workpiece pass-
es through the sensor, place the muting sensor so that the conditions for the
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is passing through the sensor or the workpiece is not passing through it.
The muting lamp should be installed in a position where it can always be seen
by operators who set or adjust the machine.
Be sure to check the operation of the muting function before its use. Further-
more, check the state of the muting lamp (cleanliness or brightness, etc.)
Make sure manually to operate system for starting override function. Further-
more, the system shall be placed in area where all over the dangerous zone
shall be comprehend and out side of the dangerous zone.
Using override function, make sure that there exist no operator in the danger-
ous zone, which may result in death or serious injury.
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