AVL F-FEM-CON - Page 37

37
Operation
F-FEM-CON — User’s Guide
Analog input for current measurement range
The pin assignment above applies to X1, X2, X3 and X4.
During parameterization, you specify whether the voltage or the current is to be
measured. This determines whether or not a sensing resistor of 500 Ω is to be
connected in parallel to the input voltage divider.
Fig. 19
A IN-
Provide shielding
at connector
housing
X1/2
X1/1
500
Ω
Current
2,5 V
93k
Ω
93k
Ω
410k
Ω
410k
Ω
ADC
X1/4
X1/5
X1/9
5 V
A IN+
i
V ref = 2,5 V
Reference
*1
1
1..... The electrical isolation between the analog and the digital ground may be removed by bridging X1/5 and
X1/9, if necessary. In this case, the specifications as given in the columns "Without Isolation" applies,
please see chapter Specifications on page 42.