Emergency Stop Switch; Checking Emergency Stop Switch Operation - Epson RC520 Manual

Setup & Operation 5.2 Emergency Stop Switch (EMERGENCY Connector)

5.2 Emergency Stop Switch

■ Connect input signal wires for Emergency Stop and Safety Door to the
EMERGENCY connector so that the Emergency Stop switch in the operation
unit or the ATTEND (TEACH) control device connected to the OPTIONAL
DEVICE connector always functions. (Refer to the typical application diagram
WARNING
in the Setup & Operation 5.5 Circuit Diagrams.)
5.2.1 Emergency Stop Switch
If it is desired to create an external Emergency Stop switch in addition to the Emergency
Stop that an operation unit or ATTEND (TEACH) control device provides, make sure to
connect such Emergency Stop switches to the proper pins on the EMERGENCY
connector.
The Emergency Stop switch connected must comply with the following:
- 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."
NOTE
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.
contacts and that each circuit connects to the specified pins on the EMERGENCY
connector at the Drive Unit. Refer to the Setup & Operation 5.5 Circuit Diagrams.

5.2.2 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. For the safety
of the operator, the Manipulator must not be powered ON until the following test is
completed.
(1) Turn ON the Control Unit and the Drive Unit to boot the Controller while pressing
(2) Make sure that both the "E-STOP" LEDs on the Control Unit's system panel and the
(3) Make sure that "Emergency Stop" is displayed on the status bar on the monitor
(4) Release the Emergency Stop Switch.
(5) Execute the RESET command.
(6) Make sure that "E-STOP" LEDs are turned OFF and the "Emergency Stop" is no
For the Emergency Stop condition to work with the peripheral equipment at the input of
NOTE
the Emergency Stop at the Drive Unit via the EMERGENCY connector, make sure that
the desired equipment is connected to the Emergency Stop output terminals. The relay
contacts at the EMERGENCY connector (#5 & #6) (normally closed) will open at the
input of Emergency Stop state.
RC520 Rev.7
Therefore, make sure that the Emergency Stop switch has double
the Emergency Stop switch.
Drive Unit's front panel are ON.
window.
longer visible (or dimmed) from the status bar.
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