1、THIS DOCUMENT HAS BEEN APPROVED .FOR PUBLIC RELEASE AND SALE; ITS DISTRIBUTION IS UNLIMITED. . MIL-STD-1399 (NAVY) SECTION 702 25 MARCH1971 SU PERSE D I N G MIL-STD-1399 (NAVY) SECTION 7y 1 DECEMBER 1970 / MILITARY STANDARD INTERFACE STANDARD FOR SHIPBOARD SYSTEMS SECTION 702 SYNCHRO DATA TRANSMISSI
2、ON FSC MISC 0 P Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-L397 -702 MI 7777711 OOZLY 7 = MIL- STD- 1 399( NAVY ) SECTION 7 0 2 25 March 1.971 DEPARTMENT OF THE NAVY WASHINGTON, D.C. 20360 Interface Standard for Shipboard Systems, Synchr
3、o Data Transmission MIL-STD-1399 (NAVY) SECTION 702 l., This Military Standard is mandatory for use by Commands of the Navy in the technical development plans, design, and procurement specifications for new ship acquisitions and systems/ equipments for installation therein. be addressed to the Naval
4、 Ship Engineering Center, Center Building, Prince Georges Center, Hyattsville, Maryland 20782. 2. Recommended corrections, additions, or deletions should ii Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1399 (NAW)SECTION 702 25 March 1971 F
5、OFZWORD The purpose of this section is to define the standard inter- face requirements for and constraints on the design of shipboard systems/equipments which will transmit or utilize synchro data. iii Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
6、Paragraph 1 . 1.1 1.2 1.3 2 . 3 . 3.1 3.2 3.3 3.4 3.5 3.6 4 . 5 . 5.1 5.2 5.2.2 5.2.3 5.2.4 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.3.6 5.3.7 6 6.1 6.1.1 6.1.2 7 . 7.1 7.2 8 . 5.2.1 10 Figure 1 2 CONTENTS MIL-STD-3377 -702 NI 7777733 0082350 5 MIL-S%?D-l399(NAW) SECTION 702 1 25 March 1971 GENERAL. SCOP
7、E AND INTERFACE General Scope . Interface . REFERENCED DOCUMENTS DEFINITIONS Synchro data transmitter User system/equipment . Synchro data receiver . Synchro data transmission system Signal flow diagram Synchro system load summary REQUIREMENTS INTERFACE CHARACTERISTICS AND CONSTRAINTS . Synchro data
8、 transmission system - general interface characteristics . Signal function System parameters . System/equipment accuracy requirements . Component/interface identification . Interface constraints . Component selection Load impedance . Power factor correction Component alignment requirements Standard
9、connections Circuit configuration . System design and loading . DOCUMENTATION REQUI REhENTS . DD Form 1423 Drawings. category B and G Load summary DEVIATIONS . Conditions . Deviation procedure REPORTS AND CORRESPONDENCE . . . . . . . . . . . . . . considerations . . . . . . . . . . . . . . . . . . .
10、 . . Page 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 5 5 5 5 5 5 5 5 5 5 5 6 6 APPENDIX Standard synchro functions 7 FI GURES Interface 1 Typical synchro circuit connections . 4 il . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.- MIL-STD-1379 -702 MI W 777791
11、1 0082151 7 W MIL-STD-l399(NAVY) CECTION 702 25 March 1971 1. GENERAL, SCOPE AND INTERFACE 1.1 General. This section is an integral part of MIL-CTD-1399. When the interface The policies and pro- between a ship synchro data transmitter and the user system/equipment is under consideration, this sectio
12、n and the standard must be viewed as a single document. cedures established by MIL-STD-1399 are mandatory. equipments transmitting or utilizing synchro data to ensure compatibility between such systems/equipments. on figure 1 (see paragraph “Definitions of MILSTD-1399) : 1.2 Scope. This section esta
13、blishes interface requirements for shipboard systems/ 1.3 Interface. The interface which is the concern of this section is shown symbolically INTERFACIl 101 LJ Signai function Signal parameters Signai accuracy impedance Power factor correction Circuit configuration System loading A The interface is
14、between the output terminals of the synchro data transmitter and the input terminals of the user system/equipment (receiver). The associated electrical circuitry internal to the user system/equipment which represents a load on the transmitter is a part of the interface. Figure 1 - Interface. 2. REFE
15、RENCED DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this standard to the extent specified herein. GOVERNMENTAL SPECIFICATION MILITARY MIL-D-1000 - Drawinqs, Enqineering and Associated Lists. MIL-S-20708 - Synchsos
16、, Gneral Specification for. STANDARD MILITARY MIL-STD-710 - Synchros, 60 and 400 Cycle. 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1399 (NAVY) SECTION 702 25 March 1971 DRAWING MILITARY 815-1853311 - Synchro System Loading Tabulation F
17、orm PUBLICATION NAVAL SHIP ENGINEERING CENTER DDS 9650-2 - Procedure for Determining Synchro System Load Capacity. (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or
18、 as directed by the contracting officer.) 3. DEFINITIONS 3.1 C nchro data transmitter. A synchro data transmitter is a device which converts 3.2 User s stem/e ui ment. A user system/equipmnt is a system or equipment which angular dibnt into a proportional electrical signal. receives azput signa? f:o
19、m a synchro data transmitter and uses this input to perform the intended system/equipment functions. synchro data signan a proportional angular displacement or to a proportional analog electrical signal in a form acceptable to the user system/equipment. composed o+ a transmitter, switches, fuses and
20、 other accessories required to transmit a synchro data signal to the synchro data receivers located within the user systems/equipments. Synchro data transmission systems can be categorized into the two following basic systems: 3.3 Synchro data receiver. A synchro data receiver is a device which conv
21、erts the 3.4 S nchro data transmission system. A synchro data transmission system is a system (a) Torque system. A torque system is one in which the synchro data receivers are self-positioning without any servomechanism assist. Torque synchro data receivers are normally used to position pointers, di
22、als, or in other applications in which a low powered mechanical output is required. A control system is one in which the synchro data receivers are not self-positioning. They require a servomechanism to provide the required mechanical output. Since control synchro data receivers appear as high imped
23、ance loads to the synchro data transmitter, high impedance non- standard synchro data receivers used for the conversion of the synchro data signal to a proportional analog electrical signal are considered to be control synchro data receivers. (b) Control system. 3.5 Si na1 flow dia ram. A signal flo
24、w diagram, as shown or. Drawing 815-1853311, is a diagram w*gG bchro signal distribution or a particular system, and which illustrates the maximum synchro loading condition for that system. It utilizes signal distribution and equipment data as inputs. shown on Drawing 8h3- which is designed in a for
25、m to facilitate the recording of values necessary to indicate the extent of loading of a particular synchro system. 3.6 Synchro s stem load sFary. A synchro system load summary is a tabulation, as 4. REQUIREMENTS 4.1 The interface requirements and constraints established herein are mandatory (see pa
26、ragraph “Requirements“ of MIL-STD-1399). 5. INTERFACE CHARACTERISTICS AND CONSTRAINTS 5.1 S nchro data transmission s stems - general considerations. The number of discrete synchro datz transmiscion systems instal + ed on any particular ship will vary with the input requirements of the user systems/
27、equipment. The configuration of synchro data transmission systems may vary from a simple system, consisting of a transmitter and a receiver, to an extremely complex system consisting of a transmitter and multiple receivers. The complexity of the synchro data transmission systems installed will be di
28、rectly -elated to the ships mission as determined by ships characteristics. Consequently, shF. requiring sophisticated electronic and weapons installations for mission accomplishment will reflect the maximum need for synchro data transmission. Since the quantity and the eleci-rical characteristics 2
29、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1377 -702 MI m 7779911 OO2153 O MIL-STD-l399(NAVY) SECTION 702 25 March 1971 of synchro data receivers vary through a wide range, it is necessary to analyze each system individually to determin
30、e the capability of the system, as shown on the signal flow diagram, to function within predetermined limits of accuracy. This analysis is accomplished and documented by completing a synchro system load summary for each installed synchro data transmission system, 5.2 Interface characteristics. The i
31、nterface characteristics of shipboard synchro data transmission systems are given below. Each such system will contain a synchro data signal with the applicable characteristics of 5.2.1 through 5.2.4 at various system/equip- ment interfaces. 5.2.1 functipnal Si na1 function. iarl7;i%efined Zn catego
32、ry G drawings. necessary to achieve the specific system/equipment accuracy shall be included on category G drawings. with synchro terminals R1, R2, S1, 52, S3 connected in consecutive order to adjacent termidals in a single row on one equipment terminal board (see figure 2). Terminal boards and term
33、inals shall be numerically identified with signal function and signal parameter data also identifiedadjacent to therespective.termina1 on the category B and G drawings and in the equipment. The direction of rotation and a precise correlation of the direction of rotation with respect to the function
34、shall be indicated on category B and G drawings. synchro data distribution systems or vice versa unless such units are specifically designed to operate effectively at either frequency. Torque synchro data receivers shall never be installed in control synchro systems. each particular system. Internal
35、 uses of the reference power supplied as a part of the interfacing synchro data signal shall be limited to associated torque synchro receiver reference, indicator lights, control relays and servomechanism control excitation. The synchro reference power shall be electrically independent and isolated
36、from the user system/ equipment main power circuits and non-associated signal function circuits. In all cases the resultant power requirements imposed on the synchro data signal reference power by the user systems/equipment shall be restricted to an absolute minimum. 5.3.7 S stem desi n and loadin .
37、 Each shipboard synchro data transmission system shall be desTgnehfderface compatibility with the characteristics given in 5.2 and shall be within the allowable tolerances specified in Design Data Sheet, DDS 9650-2. System loading calculations shall be tabulated for each system using Drawing 815-185
38、3311 as a guide. 5.3.7.1 Should the calculations reveal that the allowable tolerances at any interface are exceeded, alternate methods of supporting the required signal distribution, such as component substitution, load relocation, synchro signal amplifier installation, etc., shall be thoroughly inv
39、estigated. A proposed method of eliminating the out-of-tolerance conditions shall be submitted in accordance with section 7. . The values 5.3.4 Com onent ali nment re uirements. All alignment requirements unique to the Recommended alignment tolerances 5.3.5 Standard connections. Synchro transmitters
40、 and receivers shall be installed 5.3.6 Circuit configuration. Sixty Hz components shall not be installed in 400 Hz Transmitter reference power shall be common throughout 6. DOCUMENTATION REQUIREMENTS 6.1 DD form 1423. The documentation listed in 6.1.1 and 6.1.2 shall be specified by the PDA onaDEmm
41、3 - Contract Data Requirements List. Center, Interior Communication and Navigation System Design Section, shall be included in the distribution listed in block 14 of DD Form 1423 for all category B and G drawings displaying synchro data and fox all load cummaxies. The Naval Ship Engineering 6.1.1 Dr
42、awin s cate o B and G. Category B and G drawings in accordance with MIL- D- 1 O O O sha 14; dopingdata : (a) Sys tem/equipment accuracy (see 5.2.3) . (b) Component/interace identification (see 5.2.4). (c) Load impedance (see 5.3.2). id) Component alignment - Category G only (see 5.3.4) 6.1.2 Load su
43、mmary. Synchro system load summaries for all separate synchro systems shall be dev-ed using Drawing 815-1853311, as a guide (see 5.3.7). 7 DEVIATIONS 7.1 Conditions. In achieving the purpose of this section it is recognized that there must be some flexibility of application. During the early design
44、stage of onboard synchro data transmission systems/equipment it may become apparent that significant advantages in the overall design/operation OP such systems/equipment can be achieved by deviating from the standard characteristics specified herein. In such instance, the provisions of the “Deviatio
45、ns“ paragraph of MIL-STD-1399 shall apply. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-3397 -702 MI W 7777733 0082356 b W . MIL-STD-1399 (NAVY) SECTION 702 25 March 1971 7.2 Deviation rocedure. When invoking deviations to this section,
46、reports shall be made in accordance wh 8. REPORTS AND CORRESPONDENCE 8.1 Reports, correspondence and similar information shall be submitted by the procuring (a) NAVSEC 6170 b) Program manager activity to NAVSHIPS for action with copies to: Review ackivities : AS; OS, EC Preparing activity: Navy - SH
47、 (Project Misc-N694-9) I I 6 I I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-STD-L399 -702 NI = 77779LL OOZL57 MIGSTD-1399 (NAVY) SECTION 702, 25 March 1971 APPENDIX STANDARD SYNCHRO FUNCTIONS 10. Standard synchro functions. 10.1 This append
48、ix lists standard synchro systems unctions currently in use onboard U.S. Navy ships. In addition to the synchro functions, system frequency and function quantity.are also provided. All system voltages are 115 volts a.c. Synchro function System frequency Function quantity Own ship heading Roll Pitch
49、Own ship speed Latitude Longitude Keel epth Shaft revolution (varies with ship type) Rudder angle Plane angle Engine order/motor order Propeller pitch angle Own ship distance Own ship speed component (E-W & N-S) Wind speed (apparent) Wind speed (raw) Wind direction 400 400 60 60 400 400 60 60 400 400 60 60 400 400 40 o 60 60 400 400 400 400 400 400 400 400 60 60 60 60 60 60 60 400 400 400 60 400
