State LEDsPermalink

During the power ON procedure, the module initializes automatically. All LEDs (except the channel LEDs) are ON during this time.

LED

State

Color

LED = OFF

LED = ON

LED flashes

AC522-01_Ausschnitt

Inputs/outputs 00...07

Analog input/output

Yellow

Input/output is OFF

Input/output is ON (brightness depends on the value of the analog signal)

--

UP

Process voltage 24 V DC via terminal

Green

Process voltage is missing

Process voltage OK

--

CH-ERR3

Channel error, error messages combined into group 3

Red

No error or process voltage is missing

Severe error within the corresponding group

Error on one channel of the group