Beckhoff EtherCAT Box Quick Start Manual page 20

Configuration of EtherCAT P via TwinCAT
If you click on the button "Check EtherCAT P System", all devices that are attached to your TwinCAT tree
are listed as shown in the following figure.
Fig. 14: Check EtherCAT P System
No.
Name
Previous
Us (V), Up (V)
Sum Is(A), Sum Ip(A)
Us Load, Up Load
Us Load Type, Up Load Type
Cable Length (m)
Wire Gauge
Example with problem case and troubleshooting
The following figure shows the planning of the EtherCAT P system without a problem. All voltages in the
column "Supply Voltage (V)" are highlighted in green.
Fig. 15: Check EtherCAT P system without problem
The following figure shows the planning of the EtherCAT P system with a problem. The "Supply Voltage (V)"
of Box 5 drops below the "Min. voltage (V)". The corresponding field is highlighted in red. The error occurs
because longer cables (adjustable in Cable Length (m)) and also AWG 24 instead of AWG 22 cables
(adjustable in Wire Gauge) be used.
20
The automatically assigned number of the device according to its
position in the EtherCAT P strand.
Designation of the device in TwinCAT.
Number of the previous device in the EtherCAT P strand and the
output port used (A/B/C/D).
Supply voltage which is present at the input of the device. For device
No. 1 You can enter the voltages manually.
Sum currents of the supply voltages at the input of the device.
Enter here the total load at the IO ports of the device here.
The unit of this value is set by the choice of "Us Load Type" and
"Up Load Type".
Choose here the characteristic of the load [} 19], which is connected
to the IO ports of the device.
Enter here the length of the EtherCAT P cable, which is connected to
the input of the device.
Choose here the wire cross-section of the EtherCAT P cable, which is
connected to the input of the device.
• AWG 22 = 0,34 mm²
• AWG 24 = 0,22 mm²
Version: 1.1 IO configuration in TwinCAT