
RF Power Supply and Matching Box
4. Functions
21
4-1-3. Measurement display
Item
Display value
Comments
FWD
Traveling wave power
Traveling wave power (Pf)
REF
Reflected wave power
Reflected wave power (Pr)
VDC
VDC voltage
Voltage at the matching box's output terminal
VPP
VPP voltage
Voltage at the matching box's output terminal
4-1-4. Protective functions
In the situations below, RF output drops or is shut off (automatic recovery) and RF output stops after
the set amount of time or the set number of times.
Display
Contents
Action
FWD
Controls traveling wave power if traveling wave power exceeds rated output.
RF droop
REF
Controls reflected wave power if reflected wave power exceeds rated output.
RF droop
Traveling wave power is shut off when the above continues for 30 seconds or
more.
RF shut
off
OC
Controls traveling wave power if the RF amplifier's current exceeds the rated
value.
RF droop
OV
Controls traveling wave power if the RF amplifier's applied voltage exceeds
the rated value.
RF droop
VPP
Controls traveling wave power if the matching box's output terminal voltage
exceeds the rated value.
RF droop
ARC
Shuts off traveling wave power if the reflected wave power momentarily
exceeds the rated value,then after pausing for 10 ms, automatically recovers.
RF shut
off
INTLOCK
Stops traveling wave power when the external interlock operates.
RF OFF
ALARM
Stops traveling wave power for overheating, when the fan air volume
decreases, cooling water volume decreases,RF amplifier output is
unbalanced, when the cover is open, when the main fuse is blown, and when
the DC portion has malfunctioned.
RF OFF
When a malfunction or abnormality in Table 4-4 occurs, a buzzer will sound and RF output stops.
ALARM on the control panel also illuminates in red, an error message is displayed on the screen, and
the monitor signal is externally output.
This situation will continue until the problem is resolved and the RESET key (RF OFF) or RESET signal
is input. The system can be restarted with the RF ON signal after resetting.
Table 4-2 RF power supply measurement display list
Table 4-3 RF power supply protective functions list
Содержание RFS-13100F
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