Fig. 4 4-Conductor Connection; Fig. 5 6-Conductor Connection - Beckhoff EP3356-0022 Documentation

Product overview
If this value remains constant, then the error resulting from it can be calibrated out. However, assuming a
realistic temperature change of, for example, 30° the line resistance R changes by
L
-4
ΔRL =30° * 3.9 * 10 * 3.5 Ω = 0.41 Ω
In relation to a 350 Ω measuring bridge this means a measuring error of > 0.1 %.
Fig. 4: 4-conductor connection
This can be remedied by a 6-conductor connection, in particular for precision applications (only possible with
EL3356).
Fig. 5: 6-conductor connection
12 Version: 1.1.0 EP3356-0022