8.1 Error in the system/sensor power
supply
8 Diagnostics processing
8 Diagnostics processing
8.1 Error in the system/sensor power supply
The voltage value for the incoming system/sensor power supply is also
monitored globally. If the voltage drops below approx. 18 V, or exceeds
approx. 30 V, an error message is generated.
The green U
S
indicator is unlit.
The error message has no effect on the outputs.
Caution:
It must definitely be ensured that the supply voltage,
measured at the most remote participant is not below 18 V DC from
the perspective of the system power supply.
The following group diagnostic message is generated:
Channel number of diagnosis
0x8000 (diagnosis not channel-specific)
Channel related diagnosis code
0x0002
Channel related diagnosis code message
Undervoltage
Extended description
Voltage fault of auxiliary power supply (U
Aux
), detected by
IO-Link master.
8.2 Error in auxiliary/actuator power supply
The voltage value for the incoming auxiliary/actuator power supply is
also monitored globally. If U
Aux
diagnostic messaging is enabled, an error
message is generated if the voltage drops below approx. 18 V or exceeds
approx. 30 V.
The U
Aux
indicator shows red. If output channels are enabled, additional
error messages caused by the voltage failure are generated on the IO ports.
Manual LioN-P PROFINET IO-Link Master
Version 2.1 10/2017
78