Start-up behavior of the output voltage

	Change the behavior of the output voltage at startup via index 0x8001:41 "Default Start Up Output State" (from FW03) This function only takes effect if the device is completely de-energized on both the primary and secondary sides and the internal capacitors are discharged. If the input voltage is only interrupted for a short time, this function does not take effect. Due to the internal capacitance, the internal auxiliary voltage can remain on for several seconds, depending on the load situation. The EtherCAT interface can also continue to communicate actively during this time. If the input voltage returns during this time without a loss of communication, the last known state of the output is retained.

When delivered, the device is parameterized so that the output voltage is applied directly when the input voltage is switched on.

1. Behavior at start (see fig. below AC Power on)
The behavior of the output voltage at startup can be changed via the CoE object 0x8001:41 ("Default Start Up Output State").

0x8001:41 = 0 "Enable Output (Default)
0x8001:41 = 1 "Disable Output"
If the bit is set to "Disable Output", the output voltage is not switched on directly after switching on.

2. Behavior after reaching the OP state (see figure below State change to OP)
As soon as the EtherCAT devices state changes to OP, this setting becomes ineffective and is taken over by the process data bit "Disable output" (0x1600:01).

This is not mapped in the standard configuration, which means that the device switches on the output voltage after reaching the OP state.
If the device is not to switch on the voltage even after reaching the OP state,

the "Disable output" PDO (0x1600:01) must be mapped and
must be set to "TRUE" before reaching the OP state.

This function is available from FW03.

Start-up behavior of the output voltage 2: — Start-up behavior dependent on CoE 0x8001:41 and 0x1600