Description of Units and Circuit Boards
8 - 47
8 Description of Units and Circuit Boards
• Cautions for connection of dual input signals.
Please follow the safety instructions in chapter 1.7 "Safety" on page 10.
CAUTION!
Connect the switch (contact), which at the same time switches the 2-channel signals ON
and OFF.
If the timing that turns the two signals ON and OFF is not right, a disagreement alarm
occurs.
CAUTION!
Damage to property caused by short-circuit
As power supply is reversed for each signal, a short-circuit and thus a possible a robot
control failure occurs.
Do not connect the two signals to the same contact (use two separate contacts).
Robot controller Connection of 2-channel inputs
Input for the robot system
Turn ON/OFF at the same time
Input signal 1
Input signal 2
Switch
Robot controller Connecting 2-channel inputs to the same
contact
Input for the robot system
Input signal 1
Input signal 2
Short circuit current
The same contact
Switch
1
2
3
4
5
6
1
2
3
4
5
6
7
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