Observe the Status LEDs on the front of the controller and see Table 1 to troubleshoot the controller.
| LED Label | LED Color | Normal LED State | Description of LED States |
|---|---|---|---|
| POWER | Green | On Steady | Off
Steady = No Supply Power. Check Output wiring for short circuits and
cycle power to the controller. On Steady = Power Connected |
| FAULT | Red | Off Steady | Off
Steady = No Faults On Steady = Device Fault: no application loaded; Main Code download required if controller is in Boot mode. Blink - 2 Hz = Download or Startup in progress, not ready for normal operation Blink Rapidly - 5 Hz = One or more defined Sensor Bus devices are offline. Check Sensor Bus devices for problems. Note: The
light also blinks if you do not connect the zone humidity
sensor.
|
| SENSOR BUS | Green | Blink - 2 Hz | Blink - 2 Hz = Data Transmission (normal communication) Off Steady = No Data Transmission (Auto baud in progress) On Steady = Communication lost, waiting to join. |
| ZONE BUS | Green | Blink - 2 Hz | Blink - 2 Hz = Data Transmission (normal communication) Off Steady = No Data Transmission (Auto baud in progress) On Steady = Communication lost, waiting to join. |
| MODBUS BUS | Green | Blink - 2 Hz | Blink - 2 Hz = Data Transmission (normal communication) Off Steady = No Data Transmission (Auto baud in progress) On Steady = Communication lost, waiting to join. |