Expansion Coefficients - Siemens SINUMERIK 840D Maintenance Manual

5.1.4 EXPANSION
COEFFICIENTS
OCTOBER 2005
Three-Phase
Kilovolt-Amperes (KVA) = (Volts x Amperes x 1.73) / 1000
Formula
Expansion amount =
Coefficient x distance x degree of temperature change (Fahrenheit)
Coefficients
Steel = .00000633
Cast Iron = .00000655
Aluminum = .00001244
pathname = C:\CNCDATA\
filename = PN1234.NC
> = > (the > is required DOS syntax to redirect file to COM2)
port = COM2
NOTE
Before typing these two lines, the VMC should be in the TA,1 mode ready to receive the program at
2400 baud.
Refer to the DOS manual for answers to additional questions about the DOS commands used here.
Running DOS-based software from Windows may not work for communications.
GENERAL INFORMATION
SIEMENS MAINTENANCE MANUAL
81