User manual

User Manual – Rev B FCS Series II
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 8-3: 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 8-3 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
ig offset value. The test will last 30 minutes.
applicable. The test can be terminated at
any time
The ← l
WA F
Th s at the
nominal voltage set. (115 V or 230 V) A clipped sine wave generates the required distortion.
test will last 30 minutes. The y (backs e) will t the test at ime.
LTA M UL ION
is test requires a numeric value entry equal to the modulation rate in Hz. This entry value
ust b tw 1 an 0 T m de la is cu d b d
f Vrm abl -4 s ws lev for e A us m e ve s t O a U CA
des im e in S f war The tual requirement for Airbus ABD0100.8 is now
the Airbus mode should not be used. Use the
and phase C set to a h her voltage specified by the
The test will be repeated for a second Frequency if
.
key wil terminate the test at any time.
VE ORM DISTORTION
is te t will generate a 5% THD voltage distortion on the output voltage waveform
The for ← ke pac erminate any t
VO
Th
GE OD AT
m
modulation rate as defined in Figure 8-4.
e be een Hz d 20 Hz. he a
This test will last for 2 minutes.
plitu modu tion cal late ase on the
Note that the Airbus voltage modulation test le
o
vels are specified in peak to peak voltage instead
irbs. T e 8 ho the els th od rsu he D 160 nd E RO E
mo
specified in Vpeak peak instead of Vrms so
as plem nted FC irm e. ac
DO160 or EURO/CAE mode instead.
Modulation
Frequency (Hz)
DO160 / EUROCAE Modulation
Frequency (Hz)
AIRBUS
Volt RMS Volt RMS
1 0.5 0.18 1
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 8-4: Airbus mode voltage modulation.
Note: Voltage modulation levels change linearly from frequency 1.7Hz to 10Hz and
again from 25Hz to 75Hz. See Figure 8-4.
California Instruments 117