Diagnostics processing
50
7.4 Error in the actuator power supply
Technical manual LioN-P EtherCAT® Digital-I/O
Release 1.0 11/2016
7.4
Error in the actuator power supply
The voltage value at the connections for the power supply of the actuators is
monitored globally and on the module level.
If the actuator power supply U
L
is beyond the voltage range of 18,6 V up to
30 V, an error is reported. The U
L
indicator lights up red and the actuator
under voltage bit is set in the module information byte.
When output channels are activated, the voltage error is also displayed by
setting the relevant error bits of the M12 slots.
The error message is filtered by means of a fixed filter period of 300 ms.
NOTE
Every output channel that is active at the same time as the error occurs in
supply voltage U
L
is locked. This means that for correct operation, the
output channel must be reset by the controller when the status of the supply
voltage U
L
is normalized again.
We recommend deactivating all output channels with the controller as soon
as the undervoltage is detected. Otherwise, because it is locked, every
active output channel will report a diagnosis when the voltage value is
normalized again.
