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B.8 Fault Messages Generated By Limit
Comparisons
The microprocessor controller monitors voltages that correspond to HVPS (High Voltage Power
Supply) voltage and current parameters as well as RF power (drive, output, and reflected)
parameters. When a parameter falls outside of a predefined window (some windows may be
active only during certain HPA states or modes), a fault is generated and one of the following
messages will appear:
Helix Over Voltage
H E L I
X
Helix Under Voltage
H E L I
X
Helix Average Over Current
H E L I
X
High RF Output Power Fault
H I
G H
R F
Low RF Output Power Fault
L O W
R F
High Refl RF Power
H I
G H
R E F
Helix Voltage Detected in Standby Fault
H L X
V
D
.01023245 R
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D E T E C T
THIS DOCUMENT IS THE PROPERTY OF COMMUNICATIONS & POWER INDUSTRIES.
REPRODUCTION OR RELEASE WITHOUT EXPRESS PERMISSION IS STRICTLY PROHIBITED
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CHPA SERIES
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B-7
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