Siemens SINUMERIK 840D

FADAL MACHINING CENTERS
80 GENERAL INFORMATION MAN-0126_ R1
5.1 HELPFUL
FORMULAS
5.1.1 TEMPERATURE
Degrees Fahrenheit (F) = (9/5 x degrees C) + 32
Degrees Celsius (C) = 5/9 x (degrees F-32)
5.1.2 CONVERSION
FACTORS
Inch (in) = millimeter x 0.03937
Inch (in) = centimeter x 0.3937
Millimeter (mm) = inch x 25.4
Centimeter (cm) = inch x 2.54
Liter = gallon (U.S.) x 3.7854
Gallon (U.S.) = liter x 0.2642
Bar = Pounds per Square Inch (psi) x 0.0689
Pounds per Square Inch (psi) = Bar x 14.5
Newton-metre (N/m) = pound/foot x 14.5939
Pound/foot = Newton-metre (N/m) x 0.0685
Newton-metre (N/m) = ounce-inch x 0.00706
Ounce-inch = newton-metre (N/m) x 0.1416
5.1.3 ELECTRICAL
REFERENCES
Formulas from Ohm’s Law
Amperes (I) = Volts (E) / Resistance (R)
Resistance (R) = Volts (E) / Amperes (I)
Volts (E) = Amperes (I) x Resistance (R)
Single-Phase
Kilovolt-Amperes (KVA) = (Volts x Amperes) / 1000