1、I a- . 5 MIL-T-63534 10 7777706 0353775 2 A- 37d3 MIL -T-63534 (AR) 27 .6ecember 1981 MILITARY SPEC1 F ICATION TURRET SUBSYSTEM, UNIVERSAL (UTS), FOR ARMAMENT SUBSYSTEM, HELICOPTER, 2OMM: M97E1 and M97E2, TURRET CONTROL UNIT FOR This specification is approved for use by the U.S. Artqy Armament Resea
2、rch , and Development Comnand and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification establishes the requirements for the manufactuZCGd acceptance of the turret control unit (TCU). 2. APPLICABLE DOCUMENTS 2.1 Government Documents
3、 . 2.1.1 Specifications, Standards, and Handbooks. Unless otherwise specified (See 6.2), the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of t
4、his specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-B-5087 - MIL-E-5400 - MIL-W-63150 - Bonding, Electrical and Lightning Protection, for Aerospace Systems Electrical Equipment, Airborne, General Specification for Weapons and Support Material, Standard Quality Assurance Pro
5、visions for Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c STANDARDS MIL I TARY MIL-STD-105 - Sampl i ng Procedures and Tab1 es for Inspection by Attributes MIL-STD-1 O9 - Qual i ty Assurance Terms and Definitions MIL-STD-454 - Standard General Re
6、quirements for Electronic Equipment MIL-STD-704 - Aircraft Electric Power Characteristics MIL-STD-81 O - Environmental Test Methods 2.1.2 Other Government documents, drawi,ngs, and publications. The following other Government documents, drawings, and publications form a part of this specification to
7、 the extent specified herein. DRAW I NGS U. S. ARMY RESEARCH AND DEVELOPMENT COMMAND (ARRADCOM ) PRODUCT 13 830908 - Turret Control Assembly PACK AG I NG P11830908 - Turret Control Assembly AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM B 117 - Method of Salt Spray (Fog) Testing (Application
8、 for copies should be addressed to: American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Copies of specifications, standards, handbooks, drawings, and pub1 ica- tions required by manufacturers in connection with specified acquisition func- ttons should be obtained
9、from the procuring activity or as directed by the contracti ng officer. 1 2.1.3 Order of precedence. of this specification and the references cited herein, the text of this specification shall take precedence. In the event of a conflict between the text 2 Provided by IHSNot for ResaleNo reproduction
10、 or networking permitted without license from IHS-,-,-MIL-T-63534 LO W 7779706 0353797 6 MIL-T-63534( AR) - 3. REQUIREMENTS 3.1 Item definition. The turret control unit, Drawing 11830908, shall be configured for use in an AH-1S helicopter equipped with the XM97E1 20mn Armament Subsystem. This contro
11、l is a totally enclosed box which contains the required circuitry to translate signals from the aircraft turret electrical system into appropriate signals for turret drive motor control. The following functions shall be performed by the turret control unit (TCU): a. Convert resolver type signals int
12、o appropriate split field series wound d-c drive motor excitation. b. Provide a d-c analog signal indicating the amplitude of the input position command signal (linear up to 750 mV rms on the input). c. Provide an electrical interface to control emergency stow i ni ti a ti on. d. Provide mode select
13、ion as to which position comnand signal controls the turret drive motor. e. Provide boresight adjustment capability in the fixed forward mode. f. Provide a logic signal indicating gunner stow position is commanded. g. Provide an action signal interlock when fixed forward signal is selected. h. Provi
14、de slow slew rates for azimuth and elevation turret responses. i. Provide for the constant gain transfer function in the azimuth servo loop as a function of the Cos El signal. j. Provide filtered zener power for the limit switch assemblies. 3.1.1. Major component list. The major component list shall
15、 be as specified in Table I. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-b3534 30 3777706 0353798 MIL-T-63534tAR) TABLE I. Major component list Component Ref Des Drawing Number Case, Electrical Equipment Component Assembly, Demodulator, C
16、omponent Assembly, Fil ter, Limit Power Supply Switch Component Assembly, Current Loop Component Assembly, Interconnection Component Assembly, Driver Component Assembly 189F819 Al 189F960 - A2 11 830909 A3 11 830800 t4 A4 A5 1 1830799 - 139c7957 A8 132D1354 3.1.2 Power supply. The TCU shall meet the
17、 requirements of MIL-STD-704. Dur ng normal operation of the primary electrical system, the TCU shall meet the requirements of Paragraph 5.3.2 of MIL-STD-704. of the electrical system, the TCU shall meet the requirements of Paragraph 5.3.3 of MIL-STD-704. The power supply for all acceptance tests sh
18、all be as specified in Table II. During abnormal operation Table II. Electrical Power Nomi na1 Peak 52-6 J2-E El E2 32-H 52-5 32-L J2-K 28 Vdc Low Level 1 .O ampere 2 amperes 28 Vdc High Level 10 amperes 200 amperes Return for 52-6 Return for El 115 V, 400 Ht, 1 70 volt-amperes 95 volt-amperes Retur
19、n for J2-H 26 Y, 400 Hz, 1 1 volt-ampere 2 volt-amperes Return for J2-L 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-63534 LO 7779706 0353777 T = MIL-T-63534 (ART 3.1.2.1 Ground. In order to facilitate installation in the helicopter, the e
20、quipmentencSosures and mounting provisions shall be designed to allow electrical bonding in accordance with MIL-B-5087. speci f icati ons, and standards . requirements specified on Drawing (Dwg) 11830908, all associated drawings, and with all requirements specified in applicable specifications and s
21、tandards. completely interchangeable with each other and with like parts of other manufacture with respect to installation and performance. Parts joined together by welding, brazing or riveting shall be interchangeable as assemblies. Interchangeability shall be in accordance with MIL-STD-454, Requir
22、ement 7. provisions for first- article inspections. Requirements for the submission of first article inspection by the contractor shall be as specified in the contract and 4.3. 3.2 Material. Materials shall be in accordance with applicable drawings, 3.3 Assembly. The turret control assembly shall co
23、mply with all 3.4 Interchangeability. All parts having the same part number shall be 3.5 First article inspection. This specification contains technical 3.6 E 1 ec t r on i c Der f orma n c e character i s t i c s. 3.6.1 Performance. The turret control unit shall have the resultant The characteristi
24、cs of the major subassemblies as referenced in Table I. interconnecting cabling between these assemblies is defined on Drawing 1 1830939 . 3.6.1.1 Electronic characteristics. The TCU electronic characteristics shall be as described in Table III. tach connector pin is defined with a function and a ch
25、aracteristic. Where it is stated that the signal is not used, no external connection is to be made or measurement taken. 3.6.1.2 Input/output relationships. The input/output relationships shall be as speci fi ed in the fol 1 ow? ng paragraphs. these relationships shall be with power applied in accor
26、dance with 3.1.3 and Table II. Un1 ess otherwi se speci fi ed, 3.6.1.2.1 Azimuth preamplifier and demodulator-Action Mode. With 26.5 (+5) Vdc action relay control applied to Pin J1-K and zero Vdc fixed forward $de select voltage on Pin J2-U, the azimuth demodulator output dc voltage on Pin J2-D shal
27、l be a function of the 400 Hz COS EL input signal voltages at 53-5 as tabulated in Table IV for sight Az error input voltages Jf-M up to 0.5 Vrms based on the average of both polarities. 5 Y Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-b3534
28、 LO M 7777906 0352000 O - MIL-T-63534 (AR) TABLE III. Electronic characteristics Connec tor Functi on Characteristics J1 -A J1-B J1 -C JI -D JI -E JI -F J1 -G J1 -H J1 -J JI -K 31 -L J1 -M J1 -T J1 -N J1 -P JI -R 31 -S J1 -U J2-A Shield Sight El evati on Error Si gnal Input Return for J1-B Not used
29、Signal, Ground Not Used Not Used Not Used Not Used Action Relay Control Vol tage Input Not Used Sight Azimuth Error Signal Input Return for J1-M Sin Az Cos EL Signal Output Sin Az Cos EL Signal Return to Logic Control Unit Sin EL Signal Output Sin EL Signal Return Logic Control Unit Not Used Not Use
30、d Chassis ground 0-12 Vrms, 400 Hz t5% sinusoidal, to an Tnput impedance of 0.047 F in parallel with 400K ohms and the input impedance of a solid state op-amp. 26.5 (t5 Vdc) will enable Az and-EL error signal circuits with input at J1-B and J1-M. 0-12 Vrms, 400 Hz t5% si nusoi da1 , input Impedance
31、of 0.047 F in parallel with 400K ohms and the input impedance of a solid state op-amp. Paral 1 el with 53-6, 0-1 2 Vrms, 400 (+20)Hz sinusoidal Parallel with J3-F - Paral 1 el with J3-D, 0-1 2 Vrms, 400 (t20)Hz - si nusoi dal. Parallel with J3-E 6 Provided by IHSNot for ResaleNo reproduction or netw
32、orking permitted without license from IHS-,-,-MIL-T-63534 LO = 7977706 0352003 2 - - MIL-T-63534 ( AR) TABLE III. Electronic characteristics (continued) Connector Function Characteristics J2-B J2-C J2-D J2-E J2-F 52-6 J2-H 52-5 J2-K J2-L J2-M J2-N J2-P J2-R Not Used Not Used Azimuth Demodulator Outp
33、ut 28 V Low Level d-c Return Not Used 28 V Low Level d-c Input Power 115 Vac 400 Hz Power 115 Vac 400 Hz Power Return 26 Vac 400 Hz Return 26 Vac 400 Hz Power Not used Elevation error gate and gunner stow output Elevation demodulator output Not Used O to 5 Vdc proportional to magnitude and phase of
34、the 400 Hz signals on J1-M and 53-5 Common return bus. 28 Vdc per MIL-STD-704, Category B. Input current not to exceed 2.0 amperes. 115 Vac, 400 Hz per MIL-STD-704, Category B. VA maximum ungrounded. Input a-c power 95 Reference signal for demodulator. (Must be same phase as system resol ver signal
35、exc i tati on. ) A normally open set of relay contacts is in series with J2-N output. The relay will be energized when J3-N is low and J1-K or J2-U is at 28 Vdc. Output, open circuited, is either 28 Vdc (1 ow level ) or 0.5 Vdc maximum. O to 5 Vdc proportional to magnitude and phase of the 400 Hz si
36、gnal on Jl-B. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-6353q LO 7777906 0352002 q - MIL-T-63534(AR) TABLE I I I. Electronic characteri stics (conti nued ) Connec tor Func ti on Charac teri s ti cs J2-S Slow Slew Limit Signal Output J2-
37、T J2-U J3-A J3-B J3-C J3-K J3-D J3-E J3-F 53-6 Shield Return Fixed Forward Mode Select Input Left Limit Input Signal Right Limit Input Signal Down Limit Input Signal Up Limit Input Signal Sin EL Input Sin EL Return to Turret Sin Az Cos EL Input Return to the Turret Sin Az Cos EL Input With output vo
38、l tage present, the impedance to ground is less than 100 ohms. Impedance will be greater than 100K ohms when the output is off. Chassis ground. 26.5 (+5) Vdc will enable the fixed forward mode. Normally 28 Vdc when not at limit (low level). Limit state will be O (+0.5) - Vdc. Same input characterist
39、ics as J3-A. Same input characteristics as J3-A. Same input characteristics as J3-A. (Paral 1 el with J1 -R) 0-1 2 Vrms, 400 Hz +5% sinusoidal, input impedance of 18K ohms minimum in parallel with 0.047 F through a normally closed relay contact (Open when 28 Vdc on J1-K). Low Level Ground (Parallel
40、with J1 -S) Low Level Ground bus. Paral le1 with J1 -N. 0-1 2 Vrms, 400 Hz +5% sinusoidal, input impedance of 18K ohms minimum in parallel with a 0.047 F through a normally closed relay contact (open when 28 Vdc on J1 -K) i-: _- Provided by IHSNot for ResaleNo reproduction or networking permitted wi
41、thout license from IHS-,-,-MIL-T-63534 (AR) TABLE III. Electronic characteristics (continued) - Connector Function Characteristics J3-H 53-5 J3-L 33-M J3-N J3-R J3-P J3-T J3-S J3-U J4-A J4-C COS EL. Return Cos EL Input Shield Limit Switch Ground Return Emergency Stow Action Initiate Input Azimuth Ta
42、chometer Input Return for J3-R Elevati on Tachometer Input Return for J3-T Limit Switch Power Supply output Turret Down Drive (when enabled) by an error signal at J1-B and 28 Vdc at J1-K) Turret Up Drive (when enabled) Low Level Ground bus. 0-12 Vrms 400 Hz +5% sinusoidal, input impedance olf one me
43、gohm minimum. Chassis ground. Low Level Ground bus. Normally +2.5 to 4.0 Vdc above ground (Diode isolated with anode at J3-N). O to t90 Vdc from d-c gen e rt or . Ground bus. O to +90 Vdc from d-c generator. Ground bus Connection to 28 Vdc (low level) a series with 27 (+lo%) ohm 1 watt resistor and
44、a-30 volt (+5%1 zener diode shall be across-the output. (J3-U to J2-E) Pul ses of 28 Vdc (high level ) . Peak amp1 i tude of varying width at a repetitive rate of 600 Hz. Output load (split series motor) shall be 0.1 ohms minimum in series with 150 H 120% which saturates at 30 A. Each output shall h
45、ave a coasting diode for back EMF protection. Same characteristics as J4-A. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-T-6353q LO 7779906 0352004 MIL-T-63534 ( AR) TABLE I II. Electronic characteristics (continued) Connector Function Char
46、acteristics J4-D Turret Left Drive (when enabled Same characteristics as J4-A. by an error signal at J1-M and 28 Vdc at J1-K) J4-F Right Drive (when enabled) Same characteristics as J4-A. J4-E Azimuth Motor Re turn J4-B Elevation Motor Return 54-6 Motor Brake Supply Continuity to stud terminal E2 vi
47、a a suitable LC noise filter network including back EMF di odes. Continuity to stud terminal El (28 Vdc high level) via a sui table LC fil ter network. El H.L. 28 Vdc Input Power 200 ampere maximum requirement (load dependent). Input to a LC noi se fi 1 ter network. E2 H.L. 28 Vdc Power Return Conne
48、cted to the negative polarity leg of LC filter network. TABLE IV. Gain values Gain (Pin J2-D voltage level divided by Pin J1 -M vol tage level ) Input Pin 53-5 Vrms Units-Vdc/Vrms 10.0 8.5 6.4 - 1.83 + 15% 1.94 T 15% 2.60 T - 15% 10 Provided by IHSNot for ResaleNo reproduction or networking permitte
49、d without license from IHS-,-,- - MIL-T-63534 (AR) The polarity of the output voltage shall be negative when the J1-M input vol tage is in phase with the 26 Vac vol tage on Pin J2-L. The maximum ripple shall be 250 mV peak to peak on the voltage output at Pin 32-D with 1.0 Vrms input on Pin J1-M. A filter with a tim
