
9 Diagnostics processing
9.1 Error of the system/sensor power
supply
9 Diagnostics processing
9.1 Error of 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 off.
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.
9.2 Error of the 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 I/O ports.
U
Aux
diagnostic messaging is disabled by default and must be enabled via
parameterization.
9.3 Overload/short-circuit of the I/O port
sensor supply outputs
In case of an overload or a short circuit between pin 1 and pin 3 on the ports
(X1 - X8), the following channel-specific diagnostic messages are generated:
Manual EtherCAT®
Version 1.1 04/2021
81