Epson RC620 Safety And Installation page 83

Emergency Stop Switch
If it is desired to create an external Emergency Stop switch(es) in addition to the
Emergency Stop on the Teach Pendant and Operator Panel, make sure to connect
such Emergency Stop switch(es) to the Emergency Stop input terminal on the
EMERGENCY connector.
The Emergency Stop switch connected must comply with the following:
The signal from the Emergency Stop switch is designed to use two redundant
NOTE
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 RC620 Controller
Manual: Setup & Operation 8.4 Circuit Diagrams.
Checking Emergency Stop Switch Operation
Once the Emergency Stop switch is connected to the EMERGENCY connector,
continue the following procedure to make sure that the switch functions properly.
(1) Turn ON the Controller to boot the controller software while pressing the
Emergency Stop switch.
(2) Make sure that the Controller LCD displays the one of the following.
(3) Make sure that "E.Stop" is displayed on the status bar on the main window.
(4) Release the Emergency Stop Switch.
(5) Execute the RESET command.
(6) Make sure that LCD display in step (2) is turned off and that "E-Stop" is
dimmed on the main window status bar.
RC620 Safety and Installation Rev.8
- It must be a push button switch that is "normally closed".
- A button that does not automatically return or resume.
- The button must be mushroom-shaped and red.
- The button must have a double contact that is "normally closed".
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2. Installation
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