Click here to make tpub.com your Home Page

Page Title: Output Drive and Control
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Elevation Preamplifier and Demodulator-Action Mode
Up
Turret Subsystem,Universal (UTS), For Armament Subsystem, Helicopter, 20 MM: M197E1 and M97E2
Next
Drive Output Waveform Characteristics



img
MIL-T-63534(AR)
3.6.1 .2.5 Normal stow mode. With all mode switching voltages at zero Vdc
(Pin J2-U and Pin J1-K), the azimuth demodulator output voltage at Pin J2-D
shall be as specified in 3.6.1 .2.3 with regard to the azimuth-stow adjustment.
The elevation demodulator output voltage at Pin J2-P shall be zero Vdc when
the input voltage at Pin J3-D is 1.92 Vrms (15 percent) and 180 degrees out
of phase with the voltage on Pin J2-L.
3.6.1.2.6 Output drive and control.
3.6.1 .2.6.1 Azimuth output drive and control. With 26.5 (5) Vdc applied
to Pins J1-K, and left, or right limit voltages applied at J3-A and J3-B, the
magnitude of the 400 Hz sight azimuth error signal on Pin J1-M shall control
the pulse width on the turret left drive Pin J4-D or the turret right drive
respectively Pin J4-F. See paragraph 3.6.1.2.14 for current limits. The
phase of the signal shall determine whether the left drive output (Pin J4-D)
or the right drive output (Pin J4-F) iS enabled. A signal on pin J1-M in
phase with the reference voltage on Pin J2-L shall enable the right drive
output for a pulse width modulated 28 Vdc (high level) on Pin J4-F and shall
disable the left drive output on Pin J4-D. An out of phase signal on Pin J1-M
shall enable the left drive output for a pulse width modulated 28 Vdc (high
level) on pin J4-D and shall disable the right drive output on Pin J4-F. The
pulses of 28 Vdc (high level) peak amplitude Of varying  width at pin J4-D or
Pin J4-F shall be at a repetitive rate of 600 Hz and shall supply a minimum
output load (split series d-c motor) of 0.1 ohm in series with 150
microhenries, +20 percent, Which saturates at 30 amperes. Each output shall
have a coasting diode for protection against back electromotive force. The
load return shall be on Pin J4-E. The following threshold levels apply:
A voltage on Pin J3-A (azimuth limit-left) of less than 5 Vdc
shall disable the left drive output on Pin J4-D. Voltages between 20 and 30
Vdc on Pin J3-A shall enable the output at Pin J4-D.
b. A voltage on Pin J3-B (azimuth limit-right) of less than 5 Vdc
shall disable the right drive output on Pin J4-F. Voltages between 20 and 30
Vdc on Pin J3-B shall enable the output on Pin J4-F.
3.6.1 .2.6.2 Elevation output drive and control. With 26.5 (+5) Vdc
applied to Pins J1-K, J3-C and J3-K, the magnitude of the 400 Hz signal on Pin
J1-B shall determine whether the down drive output (pin J4-A) or the UP drive
output (Pin J4-C is enabled. A signal on Pin J1-B in phase with the
reference voltage on Pin J2-L shall enable the up drive output for a pulse
width modulated 28 Vdc (high level) on Pin J4-C and shall disable the down
drive output on Pin J4-A. An out of phase signal on Pin J1-B shall enable
down drive output for a pulse width modulated 28 VdC (high level) On pin J4-A
and shall disable the up drive output on Pin J4-C. The pulses of 28 Vdc (high
level) at Pin J4-A or Pin J4-C shall be at a repetitive rate of 600 Hz and
shall supply a minimum output load of 0.1 ohm in series with 150 microhenries,
+20 percent which saturates at 30 amperes. Each output shall have a coasting
diode for protection against back electromotive force. The load return shall
be on Pin J4-B. The following threshold levels apply:
12

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +