Rockwell Automation SA3100 Power Module Interface (PMI) Regulator - Manual (Page 17)

PMI Regulator Motherboard 2-1
C
HAPTER
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PMI Regulator Motherboard
The motherboard on the PMI Regulator (figure 2.1) contains the PMI processor and
AC power technology circuits. The PMI processor runs the motor control algorithm,
monitors drive operation, and communicates with the AutoMax UDC module over the
fiber-optic link. The AC power technology circuit provides the gate firing signals to the
drive’s power devices and receives and conditions the power device feedback signals.
2.1 Motherboard Mechanical Description
The motherboard is a printed circuit board assembly that mounts internally in the
Power Module. In addition to the PMI processor and AC power technology circuits,
the motherboard contains the following ports and connectors:
2.1.1 Fiber-Optic Ports
Transmit and receive ports are provided on the motherboard for connection to the
fiber-optic link with the UDC module in the AutoMax rack. The PMI Regulator is
shipped with dust caps covering the fiber-optic ports. To prevent dust accumulation
and the resulting loss of signal integrity, the dust caps should not be removed until the
fiber-optic cables are installed, and should be replaced if the cables are disconnected.
Figure 2.1 – PMI Regulator Motherboard