LED and 7-segment LED

LED and 7-segment LED Display

The Controller has 4 LEDs and a 4-digit, 7-segment LED

  • LED
    The LEDs (TEST, TEACH, AUTO, PROGRAM) corresponding to the current operation mode (TEST, TEACH, AUTO, PROGRAM) turn on.
  • 7-segment LED
    This displays line numbers and the Controller status (error number, warning number, emergency stop, and safeguard status).

From immediately after power-on until Controller startup

  • LED
    All four LEDs blink.
  • 7-segment LED
    All 4-digit 7 segments are turned off.

After Controller startup

  • LED
    The LEDs (TEST, TEACH, AUTO, PROGRAM) corresponding to the current operation mode (TEST, TEACH, AUTO, PROGRAM) turn on.

  • 7-segment LED
    The displayed information changes depending on the Controller status.
    If several Controller conditions occur at the same time, the displayed information on the top row takes precedence. For example, if an "emergency stop state" and "safeguard open state" occur simultaneously, the display will be as shown below.

    Controller State 7-segment LED Display
    Executing Controller state save to USB memory device

    The following two are displayed repeatedly

    Saving of Controller state to USB memory device was successful

    00 is displayed (for two seconds)

    Saving of Controller state to USB memory device failed

    EE is displayed (for two seconds)

    Error state

    4-digit error number (0.5 second) and EEEE are displayed (0.5 second) repeatedly

    		 *1
    Warning state

    4-digit warning number (0.5 second) and HELP are displayed (0.5 second) repeatedly

    		 *1
    Emergency stop state

    EP is displayed

    		 Blinking display
    Safeguard open state

    SO is displayed

    		 Blinking display
    READY state Blinking display
    START state

    L and Line number

    		 Blinking display *2
    PAUSE state

    P and Line number

    		Blinking display *2

*1 For error numbers, please refer to the following manual or online help.
"Status Code/Error Code List"

*2 In the initial state, the execution line of task number 1 is displayed in 3 digits.
The task number that is displayed can be changed with a Ton statement.
For details, refer to the following manual or online help.
"Epson RC+ SPEL+ Language Reference"

Displays of Special States

When the 7-segment display shows the following details, it indicates a special state.

7-Seg Display State Remedy
Controller startup process failed When Initialize Error occurs, restart the Controller. If the Initialize Error is still displayed even after restarting the Controller, please contact the supplier.
Controller startup process failed When Initialize Error occurs, restart the Controller. If the Initialize Error is still displayed even after restarting the Controller, please contact the supplier.

Display: 9999

The Controller is in recovery mode

Refer to the following to do the recovery.

Appendix B: Troubleshooting -Controller Recovery

Display: 9998

AC power drop detected, Controller software was ended

Check the AC power voltage.

If this occurs after maintenance, confirm that each harness is properly connected to the board.

Display: 9997

Epson RC+ (software) or the Teach Pendant (optional) issued a command to exit the software.

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