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9.5.1 Normal State tests
ollowing sections c er in AC o e.
Scroll to the NORMAL STATE entry using the up
select the NORMAL STATE screens. The screen will appear as shown in Figure 9-3.
and down cursor keys. Press the ENTER key to
F 9-3: Normal st reens
LT UNBALANCE
REQ MODULATION
7 POWER INTERRUPT
8 VOLTAGE SURGE
9 FREQ TRANSIENT (group 1/A(CF))
FREQ VARIATION (group 2 & 3/A(NF) & A(WF))
The above tests can be selected by scrolling to the highlighted selection using the up and down key
and the ENTER key to start the selected test. For some of these tests, numeric data entry may be
required to define the test number or the modulation rate.
igure ate sc
The DO160 NORMAL screens have the following tests:
1 VOLT FREQ MIN
2 VOLT FREQ MAX
3 VO
4 WAVEFORM DISTORTION
5 VOLT MODULATION
6 F
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User Manual Compact i/iX Series
VOLT FREQ MIN
Standard/Group RTCA A(CF) A(NF) A(WF)
Voltage 1 100 100 100 100
3 101.5 101.5 101.5 101.5
Frequency 380 390 360 360
Standard/Group Group1 Group2 Group3
Voltage 1 104 104 104
3 105.5 105.5 105.5
Frequency 390 360 360
Table 9-1: Normal Voltage and Frequency minimum
Standard/Group RTCA A(CF) A(NF) A(WF)
Voltage 1 122 122 122 122
3 120.5 120.5 120.5 120.5
Frequency 420 410 650 800
Standard/Group Group1 Group2 Group3
Voltage 1 122 122 122
3 120.5 120.5 120.5
Frequency 410 650 800
Table 9-2: Normal Voltage and Frequency Maximum
This test will set the voltage and frequency to levels defined by Table 9-1. The test will last for 30 minutes
The test will be repeated, except group1, using the Voltag
.
e setting from Table 9-2 and the frequency from
.
tting from Table 1-1 and the frequency from
Tabl elect t 115 key (backspace) will terminate the
te
Table 9-1. The ← key (backspace) will terminate the test at any time.
VOLT FREQ MAX
This test will set the voltage and frequency to levels defined by Table 1-2. The test will last for 30 minutes
The test will be repeated, except group1, using the Voltage se
e 1-2. The uns
st at any time.
ed phases will remain a volts. The ←
California Instruments 112
User Manual Compact i/iX Series
VOLT UNBALANCE
Standard/Group RTCA A(CF) A(NF) A(WF)
Voltage offset 6 6 6 8
Frequency 400 390/410 360/650 360/800
Standard/Group Group1 Group2 Group3
Voltage offset 6 6 9
Frequency 400 360/650 360/800
Table 9-3: Normal Voltage Unbalance
This test will change the output voltage for phase A and B to 122V and phase C to a voltage lower by
a value specified by an offset. Refer to Table 9-3 for the offset value and the Frequency. The test will
repeat with the same frequency and phase A and B volt is set to 100V and phase C set to a higher
voltage specified by the offset value. The test will last 30 minutes. The test will be repeated for a
second Frequency if applicable. The test can be terminated at any time.
The ← key will terminate the test at any time.
WAVEFORM DISTORTION
This test will generate a 5% THD voltage distortion on the output voltage waveform at the nominal
voltage set. (115 V or 230 V) A clipped sine wave generates the required distortion. The test will last
for 30 minutes. The ← key (backspace) will terminate the test at any time.
VOLTAGE MODULATION
This test requires a numeric value entry equal to the modulation rate in Hz. This entry value must be
between 1 Hz and 200 Hz. The amplitude modulation is calculated based on the modulation rate as
defined in Figure 9-4. This test will last for 2 minutes.
Note that the Airbus peak voltage instead of
Vrms. Table 4-4 shows the levels for the Airbus mode versus the DO160 and EUROCAE modes as
implemented in the DO160 firmware. The actual requirement for Airbus ABD0100.8 is now specified in
Vpeak peak instead of Vrms so the Airbus mode should not be used. Use the DO160 or EURO/CAE
mode instead or use the –ABD option (See Section 11) 0.
voltage modulation test levels are specified in peak to
Modulation
Frequency (Hz)
DO160 / EUROCAE Modulation
Frequency (Hz)
AIRBUS
Volt RMS Volt RMS
1 0.18 1 0.5
1.7 0.18 1.7 0.5
10 1.24 10 3.5
25 1.24 25 3.5
70 0.18 70 0.5
100 0.18 100 0.5
200 0.18 N/A N/A
Table 9-4: Airbus mode voltage modulation.
Note: Voltage modulation levels change linearly from frequency 1.7Hz to 10Hz and again from
25Hz to 75Hz. See Figure 9-4.
California Instruments 113
User Manual Compact i/iX Series
Figure 9-4: Voltage Modulation - Frequency characteristics
　
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