14
Protege DIN Rail 8 PGM Output Expander
| Installation Manual
8
LED Indicators
The Output Expander includes comprehensive front panel diagnostic indicators that can aid the installer in
diagnosing faults and conditions. In some cases an indicator may have multiple meanings depending on the
status indicator display at the time.
8.1
Status Indicator
The Status indicator displays the module status.
State
Description
Fast Flash (green)
Module attempting registration with controller
Slow Flash (green)
Module successfully registered with controller
Flashing (red)
Module communications activity
When the fault and status indicators are flashing alternately, the module is in the identification mode, enabling
the installer to easily identify the module in question. Upon either a module update or the identification time
period set expiring, the module will return to normal operation.
8.2
Fault Indicator
The Fault indicator is lit any time the module is operating in a non-standard mode.
State
Description
Flashing (red)
Module is in boot mode awaiting firmware update
On (red)
Module is in error state and will flash an error code with the
status indicator. Refer to the Error Code Display section to
determine the error.
When the fault indicator is on, the status indicator will show an error code. Refer to the Error Code Display
section for more information.
8.3
Power Indicator
The Power indicator is lit whenever the correct module input voltage is applied across the N+ and N- terminals.
State
Description
Constantly on (green)
Correct module input voltage applied
Constantly off
Incorrect module input voltage applied
