fafnir VISY-Output 1, Техническая документация инструкция

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Page 7/9 Fault diagnosis
3 Fault diagnosis
VISY - Output 1 has several LEDs to make diagnosis easier when there are problems. The
position of the LEDs can be seen in Figure 1.
3.1 Relay LED (3)
The red LED for the relay shows whether the relay is energised or deenergised (active or
passive).
3.2 Status LED (4)
The yellow status LED gives information on the status of communication between the VI - ...
interface card in the VISY - Command and the VISY - Output 1.
The following table lists the possible states of the status LED and explains their meaning.
Status LED Fault Meaning
On No error C orrect data is being received regularly
C ontinuous flash N o communication N o correct data received since the last switch -
on
1 short flash C ommunication
interruption
N o correct data received for longer than 1
minute
2 short flashes H old time exceeded No correct data received for longer than the
configured
hold time
Table 2: Status LED
Under normal conditions, the status LED should be on constantly.
3.3 Operating voltage LED (5)
The green operating voltage LED shows whether the VISY - Output 1 is being supplied with
power. After the auxiliary energy is turned on, the operating voltage LED glows contin u-
ously. An LED that flickers or goes out indicates a problem with the auxiliary energy or the
electrical adaptor.