4. Corrective action
4.1 LED indications
Figure 11: LEDs on connection board
[1] Channel 1
[2] Channel 2
FunctionColourDesignationLED
Device ready for operation (power supply available)greenPWR1
FO collective fault: Will be activated if either LED 5, 6 or LED 8
or 9 are illuminated or if the internal RS-485 connection is defec-
tive.
redERROR2
Byte with incorrect bit(s) received on RS-485redSTATUS3
Byte received on RS-485greenRX4
Optical receiving signal (channel 1) incorrect (no or insufficient
RX receive level). Both display and Profibus DP indicate: Wrn
FOC
redFail5
Is illuminated with LED 7 (green):
System reserve (channel 1) reached (critical or permissible recei-
ve level).
The display shows the following indication: Diagnostic > FO cables
> FOC level channel 1 = Level critical, no Rx or Level critical, Rx
Furthermore, both the AUMATIC display and Profibus DP indicate:
Wrn FO cable budget
yellowLimit6
Is illuminated and LED 6 (yellow) is not illuminated:
Good RX receive level (channel 1).
Is blinking: Data is being received on RX (channel 1).
The display shows the following indication: Diagnostic > FO cables
> FOC level channel 1 = Level good, no Rx or Level good, Rx
greenLink/Act7
Optical receiving signal (channel 2) incorrect (no or insufficient
RX receive level). Both display and Profibus DP indicate: Wrn
FOC
redFail8
Is illuminated with LED 10 (green):
System reserve (channel 2) reached (critical or permissible recei-
ve level).
The display shows the following indication: Diagnostic > FO cables
> FOC level channel 2 = Level critical, no Rx or Level critical, Rx
Furthermore, both the AUMATIC display and Profibus DP indicate:
Wrn FO cable budget
yellowLimit9
Is illuminated and LED 9 (yellow) is not illuminated:
Good RX receive level (channel 2).
Is blinking: Data is being received on RX (channel 2).
The display shows the following indication: Diagnostic > FO cables
> FOC level channel 2 = Level good, no Rx or Level good, Rx
greenLink/Act10
12
Corrective action
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