Spectrum Controls 140 ACI 052 00sc - Manual (Page 9)

1.2 LEDs
The module has a front LED panel that includes 35 LEDs:
Ready LED -
1 Green LED indicates module’s self test has passed and is ready to
communicate.
Active LED -
1 Green LED indicates BUS communication is established between the module
and the rack.
Fault LED -
1 Red LED indicates a module self test error, or fatal H/W error. A blink code
will indicate the type of self test error. Count the number of blinks before a
pause to determine the error code in the table below.
Fault LED Blink Code
Blink # Fault
3 DPM Test Error
4 CPU Error
5 Watchdog Timer Error
6 RAM Error
7 Flash EPROM CRC Error
8 Calibration EEPROM Error
Channel LED -
32 Green LEDs indicates the channel is enabled and a valid input signal level
is present. The LED is off if the channel is disabled. A blinking LED indicates
3
Installation Instructions
32-Channel Analog Input Module
Quantum 140 ACI 052 00sc