EtherCAT P cable conductor losses M8
When using ZK700x-xxxx-0xxx EtherCAT P cables it must be ensured that the voltage at the last device is not less than the minimum rated voltage of 20.4 V according to the standard. Variations in the output voltage from the power supply unit must also be taken into account. This ensures that the connected consumers, sensors and actuators are operated within the permitted voltage range.
The voltage calculation tool integrated in TwinCAT can be used for the offline calculation of the cable lengths.
The EPP9022-0060 box with diagnostics can be used for checking during operation.
Conductor losses on the EtherCAT P cables
Example
A 10 meter-long EtherCAT P cable with a cross section of 0.34 mm² has a voltage drop of ∼3.0 V with a load of 3 A.