Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 123)

Section 3B
Power Distribution
3B-2
This section discusses the connections of the main power supply and the
operator panel power supply.
Connecting the Main Power Supply to AC Power Source
ATTENTION: To guard against electrical shock hazards, never
make connections or disconnections at the ac distribution
network unless the main ac disconnect switch is open and
locked.
Important: In addition to supplying power to the operator panel power
supply, the main power supply also supplies power to the motherboard and
the CPU board. As shown in Figure 3B.2, the power cables for these
modules originate from the side of the main power supply.
Refer to Figure 3B.2 while performing these steps:
1. Locate AC-IN, L1, L2, and PE on terminal block BT04.
2. Connect the ac power source cable (C02) from the external ac power
source to AC-IN, L1, L2, and PE on BT04.
3. Connect the chassis ground terminal to the cabinet’s grounding bus bar.
Important: The chassis ground terminal connects to the control chassis
and designated cable shields. Power supply common is AC coupled to
chassis ground. It is the users responsibility to determine if a direct
connection to cabinet ground bus is required.
3B.1
Connecting the PS2 Main
Power Supply