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410Hz for 5 sec.
•
407Hz for 4 sec.
•
For 60Hz only:
61Hz for 0.5 sec.
•
60.5Hz for 0.5 sec.
•
After this sequence, a 5 second delay will be inserted at the nominal test frequency. The ← key
(backspace) will terminate the test at any time.
LOW FREQUENCY TRANSIENT
This test will change the output frequency in the following sequence:
For 400Hz and VFREQ:
•
375Hz for 1 sec.
•
380Hz for 4 sec.
•
390Hz for 5 sec.
•
393Hz for 4 sec.
For 60Hz only:
•
59Hz for 0.5 sec.
•
59.5Hz for 0.5 sec.
After this sequence, a 5 second delay will be inserted at the nominal test frequency. The ← key
(backspace) will terminate the test at any time.
9.4.7
EMERGENCY AC TESTS
From the MIL704 main menu (Figure 9-11) scroll to the EMERGENCY entry using the up and
down cursor keys. Press the ENTER key to select the EMERGENCY screens. The screen will
appear as shown in Figure 9-13.
The EMERGENCY SCREEN has the following tests:
1
VOLTAGE
2
FREQUENCY
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.
Note:
These tests are only required for revision D. See steady state voltage and
frequency tests for all other revisions.
VOLTAGE
Figure 9-13: Emergency Menu
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