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2 System Control Introduction
2.1 Main Control Function
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Data collection and display from 6 amplifiers which include voltage, current,
temperature, running status, forward power and reflect power.
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Combiner data acquisition and display which include temperature, forward power
and reflect power.
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Data collection and display from 2 exciters which include frequency, exciter
working status, forward power and reflect power.
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Amplifier modules and exciters on line detection.
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RF power control and power supply control.
2.2 System Internal Network
Internal network is built through CAN bus. CCU, amplifier modules and exciters are
connected on the CAN bus on which the CCU read information from amplifier
module’s and exciter’s and control the exciter’s power to make the machine’s
Automatic Power Control work.
Each unit on the CAN bus have a unique CAN address and the setting rules are as
below:
Exciter A
：
1
Exciter B
：
2
Power Amplifier Unit A
：
3 (DIP switch)
Power Amplifier Unit B
：
4 (DIP switch)
Power Amplifier Unit C
：
5 (DIP switch)
……
If there is no corresponding unit or use the other manufacturer’s exciter, the
corresponding CAN address is reserved.
If the exciter breaks off from the CAN bus, the machine’s Automatic Power Control
can not work.
If an amplifier module breaks off from CAN bus, the central control unit will regard
forward power and reflected power of the amplifier as zero. Consequently, CCU
