1、B; MIL-T-63536 LO W 7777706 O352048 b -s-d?-6!2 R MIL -T-63536 (AR) 27 December 1981 MILITARY SPECIFICATION TURRET SUBSYSTEM, UNIVERSAL (UTS) , FOR ARMAMENT SUBSYSTEM, HELICOPTER, .20MM: M97E1 AND M97E2, LOGIC CNTROL UNIT ASSEMBLY FOR This specification is approved for use by the U.S. Army Armament
2、Research and Development Comnand, and is available for use by all Departments and Agencies of the- Department of Defense 1. SCOPE 1.1 Scope. This specif provi si onst.ijr Logic Control 20MM: M97E1 and M97E2. 2. APPLICABLE DOCUMENTS I cation covers requi rements, qual i ty assurance Unit, Gun, for Ar
3、mament Subsystem Helicopter, 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified (see 6.2), the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the s
4、olicitation, form a part of this specification to the extent speci fied herein. SPECIFICATIONS MI L I TAR Y MIL-B-5087 - Bonding, Electrical and Lighting Protection, MIL-W-63150 - Weapons and Support Material, Standard for Aerospace Sys tems Qual i ty Assurance Provi si ons for. THIS DOCUMENT CONTAI
5、NS 37 PAGES. , L FSC 1005 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-T-b3536 LO 9 9999906 0352097 m MIL -T-63536 ( AR ) STANDARDS MIL ITARY MIL-STD-105 - Sampling procedures and Tables for Inspection by Attributes. MIL-ST-1 O9 Qual i ty Ass
6、urance Terms and Defi ni ti ons . MIL-STD-704 - Electric Power, Aircraft Characteristics and Utilization of. MIL-STD-810 . - Environmental Test Methods. - 2.1.2 Other Government documents, drawings, and pub1 ications. The following other Government documents, drawings, and publications form a part o
7、f this specification to the extent specified herein. DRAW I NGS US ARMY RESEARCH AND DEVELOPMENT COMMAND (ARRADCOM) PRODUCT 11830922 - Logic Control Unit Assembly PACKAGING P11830922 - Logic Control Unit Assembly AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM B 117 - Method of Salt Spray (Fo
8、g) Testing. (Application for copies should be addressed to: American Society for Testing Materials, 1916 Race Street, Philadelphia, PA 19103.) (Copies of specifications, standards, drawings, and publications requ by suppliers in connection with spec! fied procurement functions shoul d be obtained fr
9、om the procuring activity or as directed by the contracting officer . ) red 2.1.3 Order of precedence. of this specification and the reference cited herein, the text of this speci fication shall take precedence. In the event of a conflict between the text 2 E Provided by IHSNot for ResaleNo reproduc
10、tion or networking permitted without license from IHS-,-,-MIL-T-63536 LO 7779706 0352050 4 MIL-T-63536 (AR F 3. REQUIREMENTS 3.1 Item definition. The logic control unit (LCU) as defined by Drawing 11830922 shall be configured for use in an AH-1S helicopter equipped with XM97E1 20 mn Armament Subsyst
11、em. The control is a totally enclosed box that contains the required circuitry to translate signals from the aircraft into appropriate signals for turrent subsystem control and safe weapon firing sequences. The following functions shall be performed by the LCU: a. Convert resolver signals into appro
12、priate inputs for the air craft Stabilization Control Augmentation System (SCAS) and also provide a control signal to enable the SCAS. h. Sense an out-of-coincidence. condi tion between the turrent and sighting station and also provide the necessary signals to drive the turrent back in alignment wit
13、h the sighting station. Sense an angular difference (in azimuth or elevation) between the turrent and sighting station in excess of 1.5 degrees and provide a gun firing interrupt signal until the turrent and sight are in alignment. Limit the down elevation travel of the turret subsystem to 4.5 degre
14、es while the system is in the ground mode and to provide a logic signal indicating this condition. c. d. e. Provide gun firing interrupt whenever +18 volts direct current f. Provide +15 Vdc, -15 Vdc, +5 Vdc to supply the electronics (Vdc) or -18 Vdc is not supplied externally, contained within the L
15、CU. g. Provide the system with a 28 Vdc signal indicating that the 20MM Armament Subsystem is selected on the LCU control switch. 3.1.1 Major components list. The major components shall be as specified in Table I. TABLE I. Major component list. Component Ref. Des. Drawing 11 830531 - Component Assem
16、bly, Al Power Supply and SCAS 11 830441 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-63536 LO m 7777906 0352053 b m MIL-T-63536(AR) Component Assembly, Torque Command Component Assembly, Depression Limit Component Assembly Coinci dence Sen
17、sor Component Assembly Interconnection A2 11 830988 A4 11 830798 A5 11 830724 A6 11 830797 3.1.2 Government furnished property list. See 6.2. 3.1.3 Electrical power supply. The LCU shall operate from power sources with characteristics conforming to MIL-STD-704. The power suppl ies for al 1 acceptanc
18、e tests shall be as specified in Table II. TABLE II. Electrical Dower. Pin Function Input Power 115 Vac (+5%), 400 Hz (t5%), 200 mA I - - J2-e 115 Vac J2-f 115 Vac Return 115 Vac Return J2-h 28 Vdc 28 (t0.5, -0) Vdc, Current of 1.5 J 2-g Return for all dc Ground amps and 26 Vac supplies 26 Vac (+5%)
19、, 400 Hz (+5%), 8 mA J 2-U 26 Vac - 3.1.3.1 enclosures andting provisions shall be electrical ly bonded in accordance with MIL-B-5087. Ground. When the LCU is installed in the helicopter, the 3.2 Material . Materials shall be in accordance with applicable drawtngs, speci ficamnd standards. 3.3 Assem
20、bly. The Logic Control Unit Assembly shall comply with all requirememified on Drawing (Dwg) 11830922, all associated drawings, and with all requirements specified in applicable specifications, and standards. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
21、IHS-,-,-MIL-T-6353b LO 9999906 0352052 6 MIL-T-63536( AR) 3.4 Interchangeability. All parts having the same part number shall be completely interchangeable with each other and with like parts of other .manufacture with respect to instal lation and performance. Parts joined together by welding, brazi
22、ng or riveting shall be interchangeable as assemblies. Requirement 7 . provisions for first article inspection. first article by the contractor shall be as specified in the contract and 4.4. Interchangeability shall be in accordance with MIL-STD-454, 3.5 First article inspection. This specSfication
23、contains technical Requirements for the submission of 3.6 Characteristics. 3.6.1 Performance. The LCU shall comply with the performance requirements specified herein, when tested as specified in 4.5, 4.6 and 4.7. 3.6.1.1 Electronic characteristics. The LCU electronic characteristics shall be as spec
24、ified in Table III. TABLE III. Electronic characteristics. Connect or Characteristics Pin Function Vol tage Current J1 -A J1 -B J1 -C J1 -D J1 -E J1 -F J1 -G J1 -H Gunner Q-Si gnal Input Gunner Q-Si gnal Return Chassis Ground El evati on Servo Error Output Elevation Servo Error Return Yaw Output Vol
25、 tage Return Azimuth Demod Input Elevation Demod Input 0-10 Vac 400 Hz Return See J1-A 0-3 Vac 400 Hz Return Return O to +3 Vdc - O to - +3 Vdc Differential amplifier, A5AR1, inverting input via relay contacts and 348 kilohms. Return Into a minimum load of 200 ki 1 ohms. Low level return * Low level
26、 return Current into a single ended inverting amplifier through a 10 kilohms resistance. Same as J1-G 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-b3536 LO 99979Ob 0352053 T MIL-T-63536 (AR) TABLE III. Electronic characteristics (continued
27、) Connector Characteristics Pin Function Vol tage Current J1-J J1 -K J1 -L J1 -M 31 -R J1 -S J1 -T J1 -U J1-V J1 -W J1-X Forcing Function of V, Signal output Forci ng Function or V, Signal Return Azimuth Inter- lock Output Elevation Inter- lock Output Gun Drive Relay Return Pilot Q Signal Return Pil
28、ot Q Signal Input Vx Signal Input Elevation Error Input El eva ti on Error Input Return Yaw Signal Output 0-10 Vac O or 20 Vdc - +15% through RTL impedance O or 28 Vdc +lo% through 10K +lo% resistance Through wire to J2-n O to 10 Vac 400 Hz O to 10 Vac 400 Hz Return See J 1 -V O to 10 Vac 400 Hz Int
29、o a minimum load of 200 ki 1 ohms. Low level return Current not to exceed 1 ampere Same as J1-B Same as J1-A Di f f eren ti al amp1 i fi er i npu t AlAR1 via 10QK and inverting input of A5AR1 via 511 kilohms +5% in parallel with a 0.01 dcrofarad capacitor to Pin J1-e Differential amplifier A4AR4 inv
30、erting input via 100 kilohms in addi tion to a 0.01 -microfarad capacitor to J1 -W Return Minimum of 10-kilohm load to ground 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-63536 LO 9 77777Ob 0352054 I 9 MIL-T-63536(AR) TABLE I I I. Electron
31、ic characteristics (continued) Connec tor Characteristics Pin Function Vol tage Current J1 -Y J1 -Z J1-a J1-b J1 -C J1 -d 1 J1-e J1 -f J1-g J1-h Ji-j Roll Signal Output Roll Signal Return Pitch Signal output Pitch Signal Return TSU Q Signal Input TSU Q Signal Return V, Signal Input Return V, Signal
32、Input Return Vy Signal Input Vy Signal input Return Vz Signal Input Return, see J1 -Y Return, see J1 -a 0-10 Vac 400 H3 Return, see J1-c Return, see J1-4 Return, see J1-j O to 10 Vac 400 Hz Return, see J1 -g O to 8 Vac 400 Hz Similar to J1-X Low level return Similar to J1-X Low level return Similar
33、to J1-A Similar to J1-6 Differential amplifier non- inverting input AlAR1 via 100 kil ohms and non-i nverti ng in- put of A5AR1 via 511 kilohms in addition to an 18 kilohms +5% in parallel with a 0.01 -microfarad capacitor to pin J1-U Differential ampl ifier AlAR2 inverting input via 100 ki 1 ohms D
34、i f f eren ti al ampl i fi er Al AR1 inverting input via 100 kilohms Return Di f f eren ti al ampl i fi er Al AR2 non-i nverti ng i npu t xi a 1 O0 kilohms and single ended ampl i fier A4AR5 i nverti ng input via 100K and a set of normally open relay contacts controlled by 52-5. 7 Provided by IHSNot
35、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-T-63536 LO m 7777906 0352055 3 m MIL -T-63 536 ( AR TABLE III. Electronic characteristics (continued) - 5 aracteri stics Pin Function Vol tage Current J2-A J 2-B J2-C J 2-D J2-E J2-R J2-U J2-X 52-2 J2-b J2-e J2-f 52-
36、9 Track Signal Input Pilot Signal I npu t Tow Mode Input +18 Vdc Input -18 Vdc Input 2Om Weapon Sel ect Signal output 26 Vac Reference Input O or 28 Vdc input O or 28 Vdc input O or 28 Vdc input +18 Vdc input Input O or 28 Vdc -18 Vdc See Table II SCAS Enable Output O or 28 Vdc Firing Vol tage Signa
37、l Input O to 28 Vdc Gunner Stow O Vdc to 28 Interrupt Input Vdc through 10 kilohms into 1 kilohm to ground or 2K to -10 Vdc 115 Vac Input Refer to Table II 115 Vac Input Refer to Return Table II ( see J2-e) 28 Vdc Return Refer to Table II (see J2-h) 8 25 mA (relay current) open circuit when 52 B or
38、C = 28 Vdc 50 mA (relay current) 50 mA (relay current) 1 mA 1 mA 100 mA See Table II 100 RIA maximum 2 mA See Table II See Table II See Table II Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - - - _- - MIL-T-63536 10 M 9739706 0352056 5 m MIL-T-63
39、536 (AR) TABLE III. Electronic characteristics (continued) Connector Characteristics Pin Function Vol tage Current - J2-h 28 Vdc Power Refer to See Table II 52-1 Fixed Fwd Input O or 28 Vdc 25 mA maximum (relay current) 52- j Depression Limit O or 28 Vdc 25 mA maximum (relay current) J2-n Ground Cir
40、cui t N.A. Continuity through wire to Table II Enable Closure Gun Power J1 -R Re1 ay J2-p Chassis Ground J2-q Chassis Ground J2-r I n te rl oc k ed 28 Vdc Relay A2kl current Tri gger, Ground Ci rcui t C1 osure 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
41、m IHS-,-,-MIL-T-b353b LO 0b 0352057 7 W MIL-T-63536 (AR) TABLE I I I . El ectronic characteri s ti cs (continued) Connec tor Pin Function Characteristics J3-A(1) +15 Vdc Test Point Direct connection to +15 Vdc internal power J3-B J3-C J3-D J3-E 53-5 J3-K J3-L J3-P J3-R supply supply -15 Vdc Test Poi
42、nt Direct connection to -15 Vdc internal power Chassis Ground Depression Limit Condi ti on Si gnal Selected Control Mode (Gunner , Pilot, TSU) Test Point Ground Ci rcui t Closure, Gun Power Re1 ay Wo Error Detector Vol tage Gunner Stow Interupt Test Poi nt 5 Vdc Test Point Depression Limit Output to
43、 Test Set +15 Vdc through 10K in normal mode, -15 Vdc through 20 kilohms when in depression limit with Jl-j at 1 .O Vac in phase with J2-U. Voltage same as voltage on J1-A when J2-A,B, and C = OVdc Vol tage same as vol tage on J1-T when 52-8 or C = 28 Vdc 1 Vol tage same as vol tage on J1-c when J2-
44、A = 28 Vdc and both J2-B and C = O Vdc Continuity through wire to J2-n and J1-R Voltage across DS1 0.0 + 0.5 Vdc = unlit Parallel with 32-b 1.6 T - 0.5 Vdc = lit Direct connection to +5 Vdc internal power supply Parallel with 31-D Note 1. 53 is a test connector for system checkout with a test set. 1
45、0 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-T-b3536 10 7797706 0352058 7 MIL-T-63536(AR) TABLE I I I. Electronic characteristics (continued) Connector Pin Function Characteristics J3-S J3-T J3-U J3-V J3-W J3-X J3-Y 33-a J3-b J 3-c Fire Vol
46、ts Signal Output to Test Set SCAS Enable Output to Test Set Azimuth 1 1/20 Output to Test Set T1 Transformer Secondary to Test Point Yaw Output to Test Set Pitch Output to Test Set Roll Output to Test Set Az 1 1/20 In- put, Test Point El 1 1/2O In- put, Test Point 28 Vdc Input Power Test Point Paral
47、lel with 52-2 Paral 1 el with J2-X O Vdc when J1-G is greater than - +445 mVdc 20 Vdc t0.5 Vdc when J1-G is less than 26 Vac 400 Hz Paral 1 el with J1 -X Parallel with 31-a Parallel with J1-Y Parallel with J1-G Parallel with J1-H Parallel with J2-h 3.6.1.2 SCAS component assembly. With the inputs in
48、 3.1.3, the S interface circuitry shall exhibit the characteristics as described in fol 1 ow5 ng subparagraphs. AS he 3.6.1.2.1 SCAS circuit. The following outputs shall occur when the specified inputs are supplied. 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
49、nse from IHS-,-,-MIL-T-63536 10 7779706 0352057 O MIL-T-63536 (AR) Vol tage Output Phase Relationships I Input Pin J1 -U a. Y, = 10 Vrms at 2.15 Vac t5% in phase with V, input, t10 fide offset, at Pin 31-a; wi% Y, input at O Vac V, Return at Pin J1 -e Return at Pin J1-b b. V, = 8V rms at 4.25 Vac +5% out of phase w
