Chapter 5 Installing the Tracer MP581 programmable controller
Binary output LEDs
The
Table 18 describes binary output LED activity.
Note:
Each binary output LED reflects the status of the output relay on the circuit board. It may or may not reflect the status of the equipment the binary output is controlling. Field wiring determines whether the state of the binary output LED also applies to the status of the end device. Table 18 describes the LED states.
Table 18. Binary output LEDs
LED activity | Explanation |
|
|
LED is on continuously | The relay output is energized. |
|
|
LED is off continuously | The relay output is |
| power to the board. |
|
|
Service LED
The red Service LED indicates whether the controller is operating nor- mally. Table 19 describes Service LED activity.
Table 19. Red Service LED
LED activity | Explanation |
|
|
LED is off continuously | The controller is operating normally. |
when power is applied to |
|
the controller |
|
|
|
LED is on continuously | The controller is not working properly, or |
when power is applied to | someone is pressing the Service Pin button. |
the controller |
|
|
|
LED flashes once every | The controller is not executing the application |
second | software because the network connections |
| and addressing have been removed.1 |
1 Restore the controller to normal operation using the Rover service tool. Refer to
80 |