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RC4000 ACU Boardset
Chapter 2
Hardware
2.1.2.1 Power/Drive Board
The power/drive board's main functions are to provide antenna motor control and distribute power to the
rest of the RC4000 boardset.
The board may be externally supplied with 24VDC input or convert AC input via optional (300 or 500 W)
power supply modules. Note that the picture shows the underside of the card that will typically be faced
towards the outside of the enclosure to conduct heat and to provide minimum distance between the card
and the computing/interface card.
The characteristics of the motor drive (voltage, current limit, IR compensation, etc.) may be programmed
for each axis via software configuration items (see 3.3.1.3.4).
Spacers supporting the drive board need to be 0.875" between the mounting surface and the bottom of
the card. When an AC power supply is present, a .375" thick block of material must be placed between
the power supply and the bottom plate to conduct heat to the enclosure.
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