Fig. 30 Current And Sampling Curve For 20% Overload; Fig. 31 Current And Sampling Curve For 50% Overload - Beckhoff KS3403 Installation Manual

Fig. 30: Current and sampling curve for 20% overload
In the example shown, the terminal outputs a value of approx. 1150
value is already subject to a small error.
Current and sampling curve for 50% overload
The higher the input overload, the more interpolation points are subject to an ever greater measuring error
due to the input overload.
Fig. 31: Current and sampling curve for 50% overload
In the example shown, the terminal outputs a value of approx. 1250
value is subject to a relevant error.
The measuring error increases with the degree of overload
With increasing overload, the RMS value "I" calculated from the interpolation points still increases with the
input voltage "î", but it no longer increased linearly with the input signal, and the measuring error "∆"
increases quickly!
KL3403/KS3403
for the RMS value of the current. This
dec
for the RMS value of the current. This
dec
Version: 3.2.0
Appendix
59