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DC RIPPLE
ose a 400Hz frequency component to the output voltage. The test will last for 2
n e ripple is as follows:
:
test at any time.
The MIL70
1 VOLTAGE
2 RIPPLE
Th above tests can be
an the ENTER key to start the selecte
1. 28V system:
• 22V for 1 minute.
• 29V for 1 minute.
• 28V for 1 minute.
2. 270V system:
• 250V for 1 minute.
• 280V for 1 minute.
• 270V for 1 minute.
The ← key (backspace) will terminate the test at any time.
This test will imp
mi utes. The level of th
1. 28V system:
±1.5V.
2. 270V system
±6.0V.
The ← key (backspace) will terminate the
California Instruments 138
User Manual Compact i/iX Series
10.7.2 Transient Test
From the MIL704 DC MENU scroll to the TRANSIENT DC entry using the up and down cursor keys.
Press the ENTER key to select the TRANSIENT screen.
The Transient Test has the following tests:
HIGH V
1. 28V System
ec.
29V in 70msec.
c.
80V in 20msec.
Prior to the test, a range change may take place if
ss of power to the EUT. If this is not acceptable, the
LOW V
d phase in the following sequence:
e to 22V in 85msec.
r 75msec before returning to 28V.
c.
• Linearly increase to 250V in 30msec.
135msec before returning to 270V.
1 HIGH VOLTAGE
2 LOW VOLTAGE
OLTAGE
This test will change the output voltage for the selected phase in the following sequence:
• 50V for 12.5 ms
• Linearly reduce to
• Stay at 29V for 92.5msec before returning to 28V.
2. 270V System
• 330V for 20 mse
• Linearly reduce to2
• Stay at 280V for 135msec before returning to 270V.
the power source is set for the low voltage range.
The ← key (backspace) will terminate the test at any time.
Note: A range change will result in momentary lo
power source must be left in high range at all times.
OLTAGE
This test will change the output voltage for the selecte
1. 28V System
• 18V for 15 msec.
• Linearly increas
• Stay at 22V fo
2. 270V System
• 200V for 10 mse
• Stay at 250V for
The ← key (backspace) will terminate the test at any time.
California Instruments 139
User Manual Compact i/iX Series
10.7.3 Abnormal Test
From the MIL704 DC MENU scroll to the ABNORMAL DC entry using the up and down cursor keys.
Press the ENTER key to select the ABNORMAL screen. The Abnormal Test has the following tests:
1 OVER VOLTAGE
2 UNDER VOLTAGE
The above tests can be selected by scrolling to the highlighted selection using the up and down cursor
keys and the ENTER key to start the selected test.
OVER VOLTAGE
change the output voltage for the selected phase in the following sequence:
1. 28V system:
• 50V for 50msec.
31.5 volts by the following equation:
. for 0.05 ≤ t ≤ 7.758
• Stay at 31.5V for 92.242 seconds before returning to 28V.
• The voltage gradually decays with time to 290 volts by the following equation:
for 0.05 ≤ t ≤ 7.55
• Stay at 290V for 92.45 seconds before returning to 270V.
Prior to the test, a range change may take place if t
Note: See Section 10.6.1 under HIGH VOLTAGE.
The ← key (backspace) will terminate the test at any time.
Note: A range change will result in momentary loss of power to the EUT. If this is not acceptable, the
power source must be left in high range at all times.
UNDER VOLTAGE
This test will change the output voltage for the selected phase in the following sequence:
1. 28V system:
• 0V for 7sec.
• 20V for 93sec.
2. 270V system:
• 0V for 7sec.
• 240V for 93sec.
The ← key (backspace) will terminate the test at any time.
This test will
• The voltage gradually decays with time to
V = 31.38 + 0.93/t
2. 270V system:
• 350V for 50msec.
V = 289.6 + 3.02/t.
he power source is set at the low voltage range.
California Instruments 140
User Manual Compact i/iX Series
10.7.4 Emergency Test
From the MIL704 DC MENU scroll to the EMERGENCY DC entry using the up and down cursor keys
(Figure 10-6). Press the ENTER key to start the EMERGENCY TEST.
Figure 10-6: Emergency Test
VO
This test will change the output voltage for the selected phase in the following sequence:
1. 28V system:
• 18V for 1 minute.
• 29V for 1 minute.
• 28V for 1 minute.
2. 270V system:
• 250V for 1 minute.
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