ROCKET LAB PSC MOTORIZED Lightband MKII, Руководство по эксплуатации

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Copyright PSC 2000781K MkII MLB Operating Procedure Page 47 of 68
Step Procedure
Date & Initials
Tech. QA
10.1.5
Set the power source voltage at 24 to 32 V
DC
. When possible use the
minimum
voltage as this maximizes the Lightband’s operating life and verifies
worst-case torque margin.
10.1.6
Set the current limit on the power source to 6.5 ± 0.1 A.
10.1.7
Set the timer relay to apply power for 0.50 ± 0.05 s .
If using the recommended timer, set its function to
‘D: One Shot’
.
10.1.8
Adjust oscilloscope to properly capture all channels. Verify
1. Current probe scale matches oscilloscope on Ch. 2 & 4 (10A/V on
oscilloscope & 100 mA/V on current probes)
2. Current probes are zeroed
3. Voltage scales on Ch. 1 & 3 (recommend 5 V/div)
4. Vertical positions on Ch. 1 & 3 (recommend zero at 1 div from bottom of
screen)
5. Current scales on Ch. 2 & 4 (recommend 500 mA/div)
6. Vertical positions on Ch. 2 & 4 (recommend zero at 1 div from bottom of
screen)
7. Horizontal time scale will capture entire duration (recommend 100
ms/div)
8. Horizontal trigger position (recommend 1 div from left of screen)
9. Vertical trigger level and channel (recommend Ch. 1 set to 2 V)
10.1.9
Perform the following to operate the test circuit.
1. Turn on the power source output.
2. Verify the oscilloscope trigger is active and ready to acquire data.
3. Activate the timer relay.
4. Verify the following occurred:
4.1. Voltage and current recorded per step 10.1.1
4.2. Measured voltage meets requirement in step 10.1.5 for Channels 1
& 3
4.3. Measured current values are approximately 1/10
th
of applied voltage
for Channels 2 & 4
4.4. Timer relay applies power per step 10.1.7
4.5. Data saves and is readable on a computer
5. If positions or scales were altered to examine data, ensure they are
returned to their original values.
6. Turn off the power source output.
If any parameters are not met, make the required changes and repeat this
step. Upon completion of this step, the
Deploy Power and Measurement
Circuit shall not be changed.
10.1.10
Remove the Test Circuit: Stowed portion of Deploy Test Circuit #1 in Figure
10-1.
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