
Diagnostic alarms
6.1 Status and error displays
ET 200SP Communication module CM 1xDALI (6ES7137-6CA00-0BU0)
110
Manual, 06/2019, A5E46959434-AA
Table 6- 2
Meaning of the TX/RX LED displays
LED
Meaning
Solution
TX
RX
Flashes
Off
Interface is transmitting
---
Off
Flashes
Interface is receiving
---
When the CM 1xDALI receives an "IDENTIFY DEVICE" command (IEC 62386-103), the
LED Rx and Tx flash simultaneously at a frequency of 1 Hz and last about 10 seconds.
Table 6- 3
Meaning of the 16V displays
LED
Meaning
Solution
16V
On
CM 1xDALI integrated DALI power 16
V power on
---
Off
CM 1xDALI integrated DALI power 16
V power off
---
Table 6- 4
Meaning of FOV (Fault over voltage) displays
LED
Meaning
Solution
FOV
On
Detected over voltage on the DALI bus
(between 38 V and 353 V (250 V AC))
Check the wiring and supply voltage of
DALI bus
For example, check if you connected
the city power to the DALI bus by mis-
take.
Off
The voltage on DALI bus is less than or
equal to 20.5 V
---
Table 6- 5
Meaning of the PWR LED displays
LED
Meaning
Solution
PWR
On
Power on (supply voltage present)
---
Off
Power off (supply voltage missing)
Check the supply voltage