AMD5x Passive Infeed Unit and AMD5x Servo Drive - User Guide
ANCA MOTION
D-000129 Rev 09
12
PIU
3.5.1
The Passive Infeed Unit (PIU) primary function is to convert 3 phase mains into a filtered DC supply which is then
distributed to the servo drives. The PIU also distributes the customer supplied 24 Vdc control voltage to all drives,
and connects the EtherCAT master device to the PIU and Drive system. The PIU external connections are shown
in
X4
EtherCAT Out
EtherCAT In
CNC
EtherCAT Master capable device.
e.g. CNC
X5
X7
X6
X1
X2
External Regenerative
Brake Resistor
24 Vdc to Drives
24 Vdc Supply
LED Supply
Regenerative Brake Resistor
Over Temp Switch
Circuit Breaker
Interrupts power in
the case of an overload,
to protect the power line.
RFI Filter
Attached to prevent
external noise from the
power source line
Line Reactor
Attached to reduce
conducted harmonics
Contactor
Safety Isolation
X3
DC Bus
Figure 3-3: PIU system overview
Summary of Contents for AMD5x Series
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