Power Check - Siemens SINUMERIK 840D Maintenance Manual

FADAL MACHINING CENTERS

3.1.4 POWER CHECK

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2. Check the pressure gauge for 120 psi and adjust the regulator on the VMC if
necessary.
3. Check for air leaks at the fitting and around the air regulator.
4. It is important that the air compressor turns on when the pressure drops to
approximately 120 psi. This assures the VMC a constant 80 psi.
WARNING!
Do NOT power on the VMC before completing this section.
Tools Required
Fluke DMM, screwdriver or Wago tool 210-141
(ST-26), 5/16" hex bit socket and 3/4" open or box wrench.
Verify the Main Power Fuses
Siemens requires 3 phase power. Voltage must be 400 or 480 Volts (depending on
Module). The voltage differences between each lug and ground (measured at incoming
terminal) must be less than 5%.
INSTALLATION PROCEDURE MAN-0126_R1