Nitta NITTAOMEGA L, Инструкция по эксплуатации

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.Operations and Programming
37
Operations and Programming
This section describes a simple example of external interlock signals of the ATC. The ATC
requires synchronization with a robot and peripheral devices and exchange of operation check
signals to ensure reliability and safety.
The ATC has three built-in sensors for detection of its own motions. For details, please refer to
"Overview of the Automatic Tool Changer (ATC)."
Configure interlock settings for chuck (*1), unchuck(*2), face (*3) and tool
presence signals, etc. of the ATC. Check that the cam opening/closing is
properly detected by the three face sensors and the respective LED lamps (*4)
light up accordingly. Check that interlock signals are input to the superior
control devices, such as PLC. Without setting of external interlock signals,
safety may not be ensured in the event of operator errors or malfunction,
posing a risk of tool falling.
*1. Chuck signal: Indicates that cam is opened
*2. Unchuck signal: Indicates that cam is closed
*3. Face signal: Indicates that coupling planes of the robot adaptor and tool
adaptor are closely mated together
*4. LED lamps: Light up in different patterns to indicate the above signal
output patterns
Fig. 18. An example of interlock setting
WARNING
(1) Tool presence check
(2) Tool No. identification
check
(3) ATC internal signal check (face, chuck, and unchuck)
LED lamp normal ON check
(4) Check of detected decrease in air pressure for ATC driving
NO.1 NO.2
ATC's LED lamps
Air pressure detector
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The illustration above shows an example interlocking scheme for your reference. Please
design safe interlocking scheme appropriate for your facilities.
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We offer specs with fall-protection mechanical valve or safety switch. (For details, please
feel free to contact us.)
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If you do not choose to have our fall-protection mechanical valve or safety switch, be sure
to introduce an appropriate safety system separately.