Specifications

Analog Input Modules
31007715 6/2008 103
STB ACI 1225 LED Indicator
Purpose The LED on the STB ACI 1225 provides a visual indication of the module’s operating
status. Its location and meanings are described below.
Location The LED is located on the top front bezel of the module, directly below the model
number:
Indications
RDY Meaning What to Do
off The module is either not receiving logic power or has failed. Check power
flicker* Auto-addressing is in progress.
on The module has achieved all of the following:
z it has power
z it has passed its confidence tests
z it is operational
blink 1** The module is in pre-operational mode.
* flicker—the LED flickers when it is repeatedly on for 50 ms then off for 50 ms.
** blink 1—the LED blinks on for 200 ms then off for 200 ms. This pattern is repeated until
the causal condition changes.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com