Installation guide
2. Installation 
RC180 Safety and Installation Rev.19 
61 
The signal from the Emergency Stop switch is designed to use two redundant 
circuits. 
If the signals at the two circuits differ by two seconds or more, the system 
recognizes it as a critical error.    Therefore, make sure that the Emergency Stop 
switch has double contacts and that each circuit connects to the specified pins on 
the EMERGENCY connector at the Controller.    Refer to the Controller Manual 
RC170 / RC180 Setup & Operation: 5.5 Circuit Diagrams. 
)
NOTE 
Checking Emergency Stop Switch Operation 
Refer to 3.2 Development PC and Controller Connection and connect the 
development PC and Controller before checking the function. 
)
NOTE 
Once the Emergency Stop switch is connected to the EMERGENCY connector, 
continue the following procedure to make sure that the switch functions properly.   
For the safety of the operator, the Manipulator must not be powered ON until the 
following test is completed. 
(1)
  Turn ON the Controller to boot the controller software while pressing the 
Emergency Stop switch. 
(2)
  Make sure that the seven-segment LED on the Controller displays 
. 
(3)  Make sure that “E.Stop” is displayed on the EPSON RC+ 5.0 status bar. 
(4)  Release the Emergency Stop Switch. 
(5)
  Select EPSON RC+ 5.0-[Tools]-[Robot Manager]-[Control Panel] and click 
the <Reset> button to execute the RESET command. 
(6)
  Make sure that   LED is turned OFF and that “E-Stop” is 
dimmed on the main window status bar. 










