Kübler 573 Serie Mode D'emploi page 36

Input A = current, input B = voltage
After setting the jumpers, please shift the print carefully back to the housing, in order not to
damage the front pins for connection to the keypad plate.
Current inputs are automatically scaled to an input range of 0/4 – 20 mA.
Voltage inputs use the standard range of +/- 10V.
You are free to measure voltages up to 120 volts DC by use of a remote resistance in series to
the input line (please observe applicable safety standards!). You can calculate the value from
the formula
R = resistance value
V = input voltage
Example: Desired input = 100 volts:
R = 300 – 30 (kΩ) = 270 kΩ
With regard to the scaling procedure described later, the new maximum input with resistance
will work like a 10 volts signal with no resistance
6.573.011.E00_7b_e.doc / Sep-08
R [ kΩ ] = 3 x V [ volts ] - 30
x
Input A = voltage, input B = voltage
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