1、3 MIL-C-48454B (ml 30 Jume 1981 SUPERSEDING MIL-6-48456A(BT() 20 July 1976 MILITARY SPECIFICATION This specification is approved for use by the US Amy Armament Research and Development Command (AItRbb)COpI) and is available for use by all Departments and Agencies of the Depattmemt of Defense. 1, SCO
2、PE 1.1 - Scope. This specification establishes the requirements and quality assurance provPsions for the Computet Unit, Fire Conttol: umit of the M21 Ballistic omputer, 11932979. 11732400 which is a 2. APPLICABLE BZ)CWNTS 2.1 Issues of documents. The following documents of the issue in effect on dat
3、e of imitation for bids or request for proposal %om 1 part of this specification to the extent specified herein. SPEC IF% CATIONS BB-N-411 MILITARY MIL-F-13926 PlIE-1-45607 MIL-STD-45662 Nitrogen, Technical Fie Control Mateiel; General Specification Tnspection Equipment, Acqu4st%ow, Maintenance and
4、Disposition of Gafibratiom System Requirements Governing the Manufacture and Inspsction of FSC: 1220 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIE-C-4845QB (BEP) STANDARDS MILITARY MPL-STPl05 M%E-STD-8%8 Pnspectisn Equipment 11 758202 11 TXI441
5、 11821520 11 821 748 11 821208 11 821 45 7 11 82 1458 11 8233.77 11821471 Packaging Bata Sheet Pl1732400 Sampling Procedures and Tables for Inspec tion by Attributes Environmental Test Methods Computer Unit, Fire Control MOOP - Generator Automatic Card and Unit Test Set Adapter Computer Unit Automat
6、ic Test Assembly - Central Processor Test Set - $mersion Leak, Purge and Fi11 Fixture Chamber - Subsystem Fixture Shock9 Vertical and Horizonta% Shock Adapter, Plate Vib Horie-Vert Plane Unit Fixture-Computer, M60A3 Vib/Shock Adapter - Handling Fixture, Altitude Unit hoc k- 2, Packaging of Computer
7、Unit, Fire Control 11 732408 (Copies of specifications, standards, drawings and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. 1 2 Provided by IHSNot for ResaleNo reprodu
8、ction or networking permitted without license from IHS-,-,-3.1 Fabrication. Ehe fare control computer unit, herein refend to as the assembly, shall be manufactured in accordance with Drawing 11932480 and drawings pertaining thereto and, when assembled, shall meet the requirements of this specificati
9、on. (See 4.5.1) 3.1.1 Function. The assembly shall provide the following functions: a. Ballistic computation be Lamp logic test of amo select c. Moving tank lamp logic d. Servo drive control e. Built in test g. ST BAR output f. Output power rina teference signals 3.1.2 General specifications. The fo
10、llowing provisions of MIE-F-13926 apply: (see 4.5.1) a. Order of precedence b. Dimensions and tolerances c Inorganic protective surface finishes d. Part identification and marking e e Worhanship 3.1.3 Ambient conditions. Standard ambient conditions shall be as fo f f ows : a. Temperature b. Relative
11、 humidity c. Atmospheric pressura 73“ 9 180P 50 pzYxxlt + 30 percent 28.5 4- 2.0 - 3.0 in, Hgo 3.2 First article. When specified (See g02), the contractor shall furnish sample units for first article inspection and approval (See 4.4 and 6.2). 3.3 Performance. Unless otherwise spesi%ied, the assembly
12、 shall meet the performance requirements specified herein under standard ambient conditions of 3.1.3. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABU I. Loads, power, and signals, 1tei 1.0 1.1 1. .2 1.3 1.4 1.5 1.6 II. 7 1.8 1.9 1.10 Comd i e:
13、 P on a Loads Resistance D Motor simu- lation circuit MD Motor simu- lation circuit Resistances (6) Resistances (7) Resistance Resistance Wind sanaor simulation circuit Cant Unit Resolver simu- later circuit Charas teris tic i/ - 25 ohms +lo%, not less than 50 wa t t s-(w) see figure 1 see figure 2
14、300 ohms +5X not less than 3W - 620 ohms +5% not lesa than 2w - 398 ohms +5% not less than - 1/2w 398 ohms 95% not less than II/2w - lK ohms +5% not less than - 11 2w see figure 3 see figure 4 Cownectisns Connected between: 153-17 and 153-18 see figure 1 see figure 2 Connected indi- vidually between
15、 152-14, -159 -16, 192-24 -17, -18, -19 ana Connected indi- vidually between 151-63, -11, -10, -14 and 151-60 -9, -129 -8, -79 1.51-52 and 193-8 151-54 and 153-8 191-17 and 151-50 see figure 3 see figure 4 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
16、S-,-,-1 1 tem 1.11 1.12 1.13 1.14 1.15 1.16 2.0 2.1 2.2 2e3 3.8 3.1 TABU P. Loads, power, amd signals. - Continued Piesistamce servo Amplifier output cona i- tioming circuits WACH Input circuit 115 v 400 Hz Signal Condi- tioning circuit Feedback Condi- tioning circuits Prime Power Con- ditiomimg cir
17、cuit 8 igna 1 s I38 (true) = +i5 vac in series with 500 ohm +28% resistamcs BS- (false) = -15 vdc in series with 10K ohm 920% re s is t anye Characteristic - 1/ 75 ohms +5% not less than 20w - see figure 5 see figure 6 see figure 7 see figure 8 se?! figure 9 Tolerance: +0.5, -8.0 vdc Ripple: 1v p-I
18、max Tolerance: +2 vde Ripple: 0.5-v p-p Tolerance: - 6.0.50 vclc Connections Cornnested between 1J1-60 and returm to 151-61 see figure 5 see figure 4 see figure 7 see figure 8 see figure 9 see figure 9 same as item 2.1 same as item 2.1 Connected between: 5 Provided by IHSNot for ResaleNo reproductio
19、n or networking permitted without license from IHS-,-,-I tem 3.2 3.3 3.4 3.5 3.6 3. 7 3.8 3.9 3.18 TABU 1. Loads, power, and signals. - Continued Comd it ions - BS (true) = 915 vde in series with 500 ohm +28% resistance BC (false) = -15 vdc in series with 1QK ohm +20% re s i s t anyc - O to 5.12 vms
20、 480 Hz (ao Wear) 8 to 5.12 vms 400 Hz (GCU Test, Rop19 aoTA1) Jumper AS6 (true) = 0,08 vdc in series with 20K ohm +20% res i s taGe (false) -14.5 vdc in series with 200 ohm +20%, resistan BR (false) = 0.5 VdC LM (on) = 24 vac in series with 1K ohm +20% res iCt ance LL (off) = opem, no connection ST
21、AB (on) = 24 vde in series with -lK ohm +20% res i s take STAB (off) = open, no connec tion O to 5.Q vms, 4Q0 Rz o to 5.0 vms, 4QO Ba; o to 5.0 vms9 480 Hz o to 5.12 vm9 400 HZ (RoP2, ROTA21 Characteristic 1/ Tolerance: 0.5 4-0.2 vdc or 4.7 i-l.Q vdc ippTe: 0.02 v p-p max - Tolerance: 91 v.dc - Tole
22、rance: +0,005 vms Phasen 1 0%;) as require Tolerance: a0.085 vms Phase: 1 or-2 as required Tolerances 90 o Q02 vdc - Tolerance: +0.003 vms Phase: 1 - Tolerance: +0.010 vms Phase: 1 or-2 as reguirad Cornnec tions 1J3-55 and returrn to 1J3-52 see figure 8 see figure 8 see figure 8 1J2-7Q9 153-20 and r
23、eturn to 152-71 1J1-20, -22 and return to 1J2-gil 1J3-39, -66 and return to 152-51 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-C-48456B 12 9911906 61430550 9 MIL-C-4845 6B (AR) TABLE E. Loadss power, and signals. - Continued I tem 3.20 3.
24、21 3.22 3.23 3.2 3.25 Concl it ions MT (on) = 915 Va6 in series with 1K ohm +20% res iyt ance no connec tion (off) = open, - m (on) = 915 vac re sGtance MT (off) = span, no connection series with 1K ohm +28% - o to 5.120 vmsp cRR2 1 400 Hz (CpZEzl, BIT (on = +I305 vac in series with 518 ohm +28% res
25、istance BIT (off) = -15 vdc in series with 10K ohm 920% resistance - - - BIT (an) = 913.5 vdc in series with 510 ohm +2O% resistance BET (off) = -15.00 vdc in series with 18K ohm +2O% res is tanTe - - Characteristic - 1/ Tolerance: - +Q.50 vdc Tolerance: +Q.50 Vdc Tolerance: +Qe0Q3 vrms Phase: 1 or-
26、2 as required Tolerance: 13.5 +O,5 vdc 0% -15.00 a.5 va; - Tolerance: +13.5 90.5 VI,: OP -15.00 8.5 va6 Tolerance: a8.804 vms Phase: 1 Connections 152-5 and returm to 151-58 152-6 and return to 151-58 19%-5$ -11 and return to 151-59 151-39 and return to 1JP-58 151-62 an, return to 151-58 1J-15, -%Q,
27、 -469 -47 and return to lJ3-2% . 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 I tem 3.26 3e27 3.28 TABLE 1. Loadss power, and signals, - Comtinued Cona i tions Mw (true) = 913.5 vde in series with 500 ohm 920% resistance w (false) = -15.0 vde
28、in series with 10K ohm +20% re s is t anTe - - Mw (true) = a13.5 vdc in series with 500 ohm 920% res is t ane Mw (false) = -15 vae in series - with 10K ohm 920% resistance Tolerance: 90.3 Vd6 - Connections 152-99 -10, -IL%, or -12 and return to 192-13 1J1-40 and return to 151-58 - i/ Phase of ac sig
29、nale: 1. signals are in phase +lo with prop% output at 1151-52 (see table 11, 2 signale are 18Qo - +lo out of phase 1 signalsc - item 1). 3.3.1 Ballistic emputation. (see 4e6e2eI) 3.3.1.1 Normal operation. With the loads (table I9 item 1,O) applied, the power fo 2.2) applied, the signal sources (tab
30、le 6, items 3.14, 3.15 and 3.16) applied and with the following conditione satisfied, 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the assembly shall provide the outputs of table IV after the input conditions of table %I% have been applied for r
31、iot: less than 1,0 second unless otherwise specified, 3.3.1.2 Battle range. With the loads, power form, signal sources and input conditions applied as specified in 3.3.1.1 for item 3 of table 111 except the signal source of table I, item 3.11 (SR,) ia set to the True Condition, the voltage at 1J4-67
32、 (DL) shall be: V194-67 = -0.038 + 0.010 vms (at ambient temperature) - = -0.038 - d. 0.021 vrms (over full operating temperature range) 3,3.1.3 WDT input lockout. With the loads, power form, signal sources and input conditions applied as specified im 3.3.1.1 for item 29 of table %I and the signal s
33、ource of table I, item 3.9 (vTACH changed from 3.252 9 0.012 to -9.800 -I= 1.000 VDC after the signal source of table I, item 3T13 (Lead Lock 2) hay been applied as specified im table III, note 10, the output at 154-5 (-E) shall changa not greater than 15 mvrms for not less than 5,O seconds. 3.3.1.4
34、 Omega time of flight zero. With the loads, power form, signal sources and input conditions applied as specified in 3.3.1.1 for table III, item 20, the voltage at 154-69 shall be 0.000 - d. 0.012 vms. The measured voltage shall be defined as WT(0). (W - kwVw) TT 3.3.2 Lamp logic test of amo select.
35、The assembly shall provide the outputs as specified in table V with the specified input conditions the power form of table E, item 2.2 and loads of table I, item 1 applied. (See 4.6.2.2) 3.3.3 Moving tank lamp logic. The assembly shall provide the outputs as specified in table VI with the specified
36、input conditions the power fom of table I, item 2.2 and loads of table 1, item 1 applied. (See 4.6.2.3) 3.3.4 Servo drive control. (See 4.6.2.4) 3.3.4.1 Servo drive. 3.3.4.1.1 Positive drive. With the loads and power form applied as specified in 3.3,I.l and the signal sources of table I9 items 3.14s
37、 3.15 and - 3.16 applied with the following conditions satisfied, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the assembly shall provide the followimg outputs after the input conditions of table %I, item 3 have been applied for not less than 1.5
38、seconds: 3.3.4.1.2 Negative drive. With the loads and power OKIII applied tis specified in 3.3.1.1 and the signal. sources of table IP items 3.14, 3,15 and 3,16 applied with the following conditions satisfied, the assembly shall provide the following outputs after the irnput conditions of table %I9
39、item 3 have been applied for not less tham 1.5 seconds: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3,3.4.2 Servo null, With the loads and power form applied as specified in 3.3.1.1 and the signal sources of table items 3.14, 3.15 and 3.16 applie
40、d with the Eollsw9ng conditions satisfied, the asembly shall meet the following conditions sifter the input conditions of table %I9 items 3, 9, 14 and 22 have been applied for not less than 1.8 (EMTW1 - EMTRP) - 7.25 * V13-2 - 1.5 secona: I d. + 1.21 * Vpg4-4 + 0.6 * V13-20. VBC i- 28.9 * vpg3-39 -5
41、 * 5 e. I OrnR2 - DMTRy 3.3.5 Built in test. With the input signals applied as specified fa each item of table QI%, the input power of table I, item 2 applied and the output loads of table I, item 1 applied, the output conditions of table VI1 shall be met for any item order after ci% of the inputs h
42、ave been applied for mot less than 2.8 seconds. (See 4.6.2.5) 3.3.6 Output power and reference signals. With the loads of table Ie item 1 and the power form of table I9 item 2.2 applied, the output power and reference signals shall be as specified in table II. (See 4.6,2.6) i2 Provided by IHSNot for
43、 ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48456B (AR) 3.3.6.1 Output power amd reference signal check, With input power of table I item 2.2 applied and the output power aiid reference signals as specified in table II, the voltage (W.S. Fail) at 151-14 shall be
44、 the voltage of table II, item 6 +%.O0 VDG. 0,3 + 0.3 VDC. The ltage (R.P. PWT Fail) at 1J4-57 shall be The zutput voltages at 151-14 and 154-57 shall. be referenced to lJ2-51. 3.%,9 ST BAR output. With the power, table Io item 2 amd the signals table I, items 3.23 (OFF) ad 3.24 (ON) applied, the ou
45、tput at 153-60 shall be 4.5 91.8 vde, With the power, table I9 item 2 and the signals table Io items 3.23-(ON) and 3.24 (OFF) applied, the output shall be 8.4 90.4 vdc at 153-60. The output at PJ3-60 shall. be refereced to 153-26. (See zo6.2.7) TABLE 1%. Output power and ofefece signals. 151-90 and
46、return to 1J2-13 153-98 and return to 151-68 1J2-24 and return to 152-25 152-9 and return to 151-5Q 191-56 and return to 15%-50 1Jl-64 and retrim to 152-46 Gharac teris tic a/ - Sine wave, item 1 +0.006 (0,015) vmsj 188“ out of phase wiTh item 1 - +1.0“ 180“ out of phasesith item 1 - 910“ Sine wave,
47、 1115.0 +10.0 (15.0) vms, i/ Numbers in parentheses are tolerances at temperature extremas of 3.5.3. 402 - 2 He at 125F 2/ 398 + 2.1 Ba at -25F 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABU 111. Ballistic camputatism inputs. i/ I tem 11 2 3
48、 4 5 6 7 8 9 10 11 12 13 14 115 16 17 1.277 3.032 1.277 P 0 968 1.968 3 032 4.574 3.723 1 * 277 3.032 1.277 P. 968 3 e 832 3.298 11.277 1. 968 11.968 - 6/ AS6 151-33 1 1 1 1 1 1. 1 O 1 1 1 1 11 1. 1 1 1 1 1 1 1 1 1 1 1 o O Q O O 0 8 o o - 5/ HEAT 1J2-1Q o O Q O O (9 O Q 1 1 O O O Q o O O - li/ HEP 152-11 Q O O O o O O 8 o 8 1 1 1 11 O O 0 o o 0 o Q 0 O Q 0 Q 8 Q Q Q 1 1 1 Q Q Q O o O O Q Q O o O o O o Q O - 9/ MT _p_. 1 1 11 1 1. 1 1 1 1 1 1 1 1 1 1 1 1 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-P tem 18 19
