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ADVANCED ENERGY
Does the unit
meet calibration
C
specs at
setpoint?
NO
Is there high
reflected power
indicated on the
front panel display
when the display
in in the REFL
PWR mode?
NO
Confirm that the proper setpoint from
the system interface board is being
sent to the generator interface (the
front panel display indicates the
setpoint power requested when the
display is placed in the "SETPOINT"
mode. If comparing actual output to
setpoint voltage, use the following
formula: setpoint V x 500 (1 V = 500)
add the accuracy of the generator plus
the accuracy of the power meter.
Example: 1.03 Vdc is measured
between pins 5 and 6. (1.03 x 500 =
515) The setpoint power is 515 W.
Add the accuracy of the generator
(±1%) and power meter (Bird) (±3%)
together. The total accuracy is ±4%
(±4% of 515 W = ±20.6 W). If the
power meter indicates between 494.4
and 535.6, the unit meets specs.
Verify the generator
has the correct
forward and reflected
power readback
signals (1 V = 1 kW)
5-4
If a different problem
YES
exists other than what
was covered, please
contact your nearest
AE customer service.
Place the circuit
YES
breaker in the "off"
position and take a dc
resistance
measurement at the
output of the generator.
NO
Does the unit meet
specs after setpoint
signal is confirmed
December 2000
END
Unit is "OK". Check
system, coaxial cable,
Is the
match network,
YES
resistance
pressure, or gas
between
mixtures and flow.
12 and
Once the problem has
13.5 Ω
been identified and
corrected, you can
resume your process
NO
Complete the process
to return the unit to AE
customer service.
The fault is in the system
interface cable or the
YES
system interface board.
Once the problem has
been identified and
corrected you can
resume your process.
A
END
A
P/N 5706045C
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