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The diagram shows operation with safety outputs 1 / 2 in auto-reset
mode.
Light
received
Light curtain
Light
blocked
ON
Muting sensor 1
OFF
ON
Muting sensor 2
OFF
ON
Safety output 2
(34 and 44)
OFF
ON
Auxiliary output 1
(Muting output)
OFF
ON
Auxiliary output 3
(Blown lamp output)
OFF
ON
Muting lamp
output 1
OFF
ON
Muting lamp
output 2
OFF
The lamps are monitored during muting state, and if either of them
blows, auxiliary output 3 is turned OFF. If only one lamp blows, the
muting state is maintained, however, if both lamps blow, the muting
state is canceled immediately.
FUNCTIONS
11
WARNING
Incorrect using of the muting control may cause an accident.
Please understand the muting control fully, and use it. As for the
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quirements.
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"Safety of machinery - Safety-related parts of control systems -
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General requirements, 9.2.4 Overriding safeguards"
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izers, Annex A, A2.2 Muting"
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"for Machine Tools-Safeguarding When Referenced by the Other
B11 Machine Tool Safety Standards-Performance Criteria for the
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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 measures while the muting
control is activating.
For the application that the muting control is activated when a
workpiece passes through the sensor, place the muting sensor so
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sion of personnel when the workpiece is passing through the sen-
sor or the workpiece is not passing through it.
The muting lamp should be installed in a position where it can al-
ways be seen by operators who set or adjust the machine.
Be sure to check the operation of the muting function before its
use. Furthermore, check the state of the muting lamp (cleanliness,
brightness, etc.)
This product cannot be used in combination with the handy control-
ler 6)%+&.
Blown
Blown
lamp
lamp
Blown
lamp
Reset operation
WARNING
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outside the dangerous area, and also where the operators can see
the entire dangerous area.
The reset function corresponding to the respective safety outputs 1
/ 2 / 3 is incorporated.
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(Manual reset only).
However, if the muting function is valid, safety output 2 is not turned OFF.
Safety output 1
This is the output corresponding to light curtain in light received /
light blocked status.
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However, if the emergency stop is valid, safety output 1 is OFF.
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This is the output corresponding to the light curtain in light received
/ light blocked status including the muting state.
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However, if the emergency stop is valid, the safety output 2 is OFF.
Safety output 3
This is the output corresponding to the external emergency stop switch.
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However, if the emergency stop is valid, both safety outputs 1 / 2 are OFF.
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nal is fedback, it is judged that the circuit works properly. When the OFF signal is
not fedback, it is judged that the output circuit or wiring is in error and the safety
output is maintained in the OFF state.
WARNING
Please consider the input response time of the machine to which you
connect this product so that no malfunction occurs due to this prod-
uct's OFF signal.
Emergency stop
Safety output 3 can be controlled by connecting an external emer-
gency stop switch or another interlock device.
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Test input
WARNING
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machine in which the light curtain is installed. Failure to do so could
result in death or serious injury.
This function turns safety outputs 1 / 2 OFF forcibly.
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This is used when the override function is used as well.
Muting function
This function turns the safety output 2 into invalid temporarily. This
function is available for passing the workpieces through the sensing
area of the light curtain without stopping the machine.
The muting function becomes valid when all the conditions listed
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‡ The safety output 2 is ON.
‡ The incandescent lamp with 3.6 to 30W shall be connected to
either muting lamp output 1 or 2, or to both of the inputs.
‡ The output of the muting sensors S3 and S4 shall be changed
from OFF (open) to ON. At this time, the time difference occurred
by changing the output of the muting sensors S3 and S4 into ON
status shall be 0 to 3 sec.
Muting sensor input
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This is used to connect the muting sensor. For following devices,
photoelectric sensor with semiconductor output, inductive proxim-
ity sensor, position switch on NO (Normally Open) contacting point,
etc. are available for applying to the muting sensor.
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Muting lamp
This lamp is used to show that the product is in muting state. Two
lamps can be connected. Even if one of the two lamps breaks, the
muting operation can be continued because of another lamp. The
broken lamp can be replaced without suspending your work.
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