WARNING
●
Incorrect using of the muting control may cause an accident. Please
understand the muting control fully, and use it. As for the muting
control, the following international standards define the require
-
ments.
ISO 13849-1 (EN ISO 13849-1 / 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 61496-1 / EN 61496-1 / 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 depalletiz
-
ers, 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.)
ANSI/RIA R15.06-1999:
“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 work-
piece passes through the sensor, place the muting sensor so that
the conditions for muting control cannot be satisfied by intrusion of
personnel when the workpiece 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 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.)
FUNCTIONS
11
●
Reset operation
WARNING
Design the system such that the reset switch can be operated from
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.
X11, X12 and X13 terminal: Reset input terminal of safety output 1
When X11 and X12 terminals are used: Manual reset
When X11 and X13 terminals are used: Auto-reset
X21, X22 and X23 terminal: Reset input terminal of safety output 2
When X21 and X22 terminals are used: Manual reset
When X21 and X23 terminals are used: Auto-reset
X31 and X32 terminal: Reset input terminal of safety output 3
(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.
In light received status: ON, In light blocked status: OFF
However, if the emergency stop is valid, safety output 1 is OFF.
●
Safety output 2
This is the output corresponding to the light curtain in light received /
light blocked status including the muting state.
In light received status or if the muting function is valid: ON,
In light blocked status and if the muting function is invalid: OFF
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.
When the emergency stop is invalid: ON
When the emergency stop is valid: OFF
However, if the emergency stop is valid, both safety outputs 1 / 2 are OFF.
Note: When the safety output is ON, the output transistor goes OFF periodically to self-
diagnose the output circuit. (OFF pulse width: 100μs or less) When the OFF signal
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 out
-
put 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.
*: Be sure to use a 2 NC type forcible dissociation type contact.
●
Test input
WARNING
Do not use the test input function for the purpose of stopping the ma
-
chine 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.
Open between T1 and T2 terminals: Forcibly OFF.
Short-circuit between T1 and T2 terminals: Normal operation
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 be-
low are satisfied:
•
The safety output 2 is ON.
•
The incandescent lamp with 3.6 to 30W shall be connected to ei-
ther 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
(Muting sensor is used in the “Dark-ON” state.)
This is used to connect the muting sensor. For following devices,
photoelectric sensor with semiconductor output, inductive proximity
sensor, position switch on NO (Normally Open) contacting point, etc.
are available for applying to the muting sensor.
S3 terminal (S3+, S3 and S3-): 3-wire PNP open-collector type sensor
S4 terminal (S4+, S4 and S4-): 3-wire NPN open-collector type sensor
●
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.
<Blown lamp output>
The diagram shows operation with safety outputs 1 / 2 in auto-reset
mode.
● 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.
Light
received
Light
blocked
Light curtain
ON
OFF
ON
OFF
ON
OFF
Safety output 2
(34 and 44)
Muting sensor 1
ON
OFF
Auxiliary output 1
(Muting output)
ON
OFF
Auxiliary output 3
(Blown lamp output)
Muting lamp
output 1
Blown
lamp
ON
OFF
Muting sensor 2
Muting lamp
output 2
ON
OFF
Blown
lamp
Blown
lamp
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
