Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 200)

PC NC Maintenance Manual Chapter 6: Module/Unit Replacement
6-18
3. Tighten the four mounting screws.
4. Insert the floppy disk drive data and power connectors in their original loca-
tions.
Following installation, verify functions as follows.
1. Power up the CPU rack.
2. Verify that the floppy disk drive is displayed on the BIOS screen at boot-up.
3. Insert a floppy disk in the floppy disk drive unit and test access to the floppy
disk drive from the MMI to verify proper function.
6.4 NC Power Supply
Remove the numeric control power supply as follows.
1. Turn the main power off.
2. Remove all connections from the power supply terminal block.
3. Remove the power supply.
Install the numeric control power supply as follows.
1. Mount a new power supply to the same location as the original unit.
2. Tighten the mounting screws.
3. Connect all wires into their original locations.