1502-C000000000B0A直流调速器_漳州鼎晟达自动化设备有限公司

1502-C000000000B0A直流调速器

(1)M法：是在时间间隔内，对光电码盘输出脉冲数进行计数，并计算出转速，适用于发电机转速的高速测量。

(2)T法：是通过测量光电码盘的脉冲周期来计算电机转速的一种测量方法。

(3)M/T法：是结合了M法和T 法的优点，在低速及高速段均有较高的分辨能力和测量精度。

(4)E/T法：其原理是从T法出发，只是为了克服T法高速时的精度问题。

结合 PLC和该水电站水轮发电组的测速范围（0~600r/min），以及M法测速对硬件要求简单的特点，本文采用M法进行转速测量与计算。

假设与发电机同轴连接的光电码盘每旋转一周，输出脉冲数为P，电机的转速为n(r/min)，检测时间为T(s)，在T内的计数脉冲数为m，则电机的转速n为： n = 60m/pt

在检测时间T内其误差大为1个脉冲，则M法转速分辨率Q为： Q = 60(m + 1）/pt - 60m/pt = 60/pt

可见采用M法测速时，其分辨率与速度的大小无关，要想提高分辩率，除选用每转输出脉冲数多的光电码盘外，只有尽可能的增大检测时间，但是检测时间过大，转速的反馈延滞作用越严重，将严重影响系统的动、静态性能。

开关量：开关量只有两种状态，0、1，包括开入量和开出量，反映的是状态。

数字量：数字量由多个开关量组成。如三个开关量可以组成表示八个状态的数字量。

模拟量：模拟量是连续的量，数字量是不连续的。反映的是电量测量数值（如电流、电压）。

1、开关量：为通断信号，无源信号，电阻测试法为电阻0或无穷大；

也可以是有源信号，专业叫法是阶跃信号，就是0或1，可以理解成脉冲量

版主说的好，多个开关量可以组成数字量

2、数字量：有0和1组成的信号类型，通常是经过编码后的有规律的信号。和模拟量的关系是量化后的模拟量。

3、模拟量：连续的电压，电流等信号量，模拟信号是幅度随时间连续变化的信号，其经过抽样和量化后就是数字量。

4、脉冲量：在瞬间电压或电流由某一值跃变到另一值的信号量。在量化后，其连续规律的变化就是数字量，如果其由0变成某一固定值并保持不变，其就是开关量

开关量主要指开入量和开出量，是指一个装置所带的辅助点，譬如变压器的温控器所带的继电器的辅助点（变压器超温后变位）、阀门凸轮开关所带的辅助点（阀门开关后变位），接触器所带的辅助点（接触器动作后变位）、热继电器（热继电器动作后变位），这些点一般都传给PLC或综保装置，电源一般是由PLC或综保装置提供的，自己本身不带电源，所以叫无源接点，也叫PLC或综保装置的开入量。

数字量定义为：在时间和数值上都是断续变化的离散信号。

模拟量定义为：在时间和数值上都是连续变化的信号。

基本的数字量就是0和1，基本来说即指反映到开关上就是指一个开关的打开（0）或闭合（1）状态，开关量是无源的，即它需要装置输出电源对它进行检测（这也就是装置的开入量，如综保装置的非电量输入即是一个外部提供的开入量）；也可以用0和1进行编码，编成各种通讯码。

模拟量即指经PT、CT等传送过来的电压、电流、频率等电量信号；压力传感器经压力变送器、液位传感器经液位变送器、流量传感器经流量变送器、热电偶或热电偶经温度变送器等传送过来的4-20mA（电Ⅲ型仪表）信号等就是模拟量。综保装置能检测电量（经PT、CT等传送过来的电压、电流、频率等信号，即模拟量）和非电量信号（变压器的轻瓦斯、重瓦斯、超温信号，即非电量，也就是开关的打开和闭合）

开关量、数字量、脉冲量。

1、直接测量到的是开关量、模拟量。

　　开关量：反映的是状态信号（如开关开、合）。

　　模拟量：反映的是电量测量数值（如电流、电压）。

2、脉冲量一般是积分量（如电度量），不能直接测量到，需要经过测量仪表进行运算得到。

3、接测量到的开关量、数字量、脉冲量进行调制、数字编码，在通讯通道中传输。

　　以前也有用模拟信号来传输的，现在一般都是用数字信号来传输。

4、调度端解调信号，还原信息。

把数字量和数字信号分清楚就很明了

数字量相对的是模拟量，模拟信号。

开关量、脉冲量都属于数字信号

在时间上和数量上都是离散的物理量称为数字量。把表示数字量的信号叫数字信号。例如：

用电子电路记录从自动生产线上输出的零件数目时，每送出一个零件便给电子电路一个信号，使之记1，而平时没有零件送出时加给电子电路的信号是0，所在为记数。可见，零件数目这个信号无论在时间上还是在数量上都是不连续的，因此他是一个数字信号。小的数量单位就是1个。

在时间上或数值上都是连续的物理量称为模拟量。把表示模拟量的信号叫模拟信号。例如：

热电偶在工作时输出的电压信号就属于模拟信号，因为在任何情况下被测温度都不可能发生突跳，所以测得的电压信号无论在时间上还是在数量上都是连续的。而且，这个电压信号在连续变化过程中的任何一个取值都是具体的物理意义，即表示一个相应的温度。

1、数字量

在时间上和数量上都是离散的物理量称为数字量。把表示数字量的信号叫数字信号。把工作在数字信号下的电子电路叫数字电路。

例如：

2、模拟量

在时间上或数值上都是连续的物理量称为模拟量。把表示模拟量的信号叫模拟信号。把工作在模拟信号下的电子电路叫模拟电路。

例如：

开关量包括开入量和开出量，是数字信号，只有0和1两种状态，表示继电器接点的闭合或断开或者一些断路器的辅助接点。开入量就是保护装置的信号输入，采集现场开关、刀闸等位置信息。

微机保护里的开入量和开出量指的是数字量即继电器接点的闭合或断开或者一些断路器的辅助触点的闭合与断开。

具体来说就是输入到微机保护里的开关量就是开入量，而微机保护CPU控制单元发出指令时，继电器闭合或断开输出到设备上的就是开出量。

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Allen Bradley 1746-OW16 Module 1746-0W16 Series C (Pack of 6)

Fanuc A20B-2900-0910/03A Memory Module A20B2900091003A - New No Box

Mitsubishi A1SD75P2-S3 Positioning Unit - New No Box

ASM WS10-250-420A-L10-SB0-D8-SAB2 Sensor WS10250420AL10SB0D8SAB2

Allen Bradley 700-R620A1 Relay 700R620A1 Nice (Pack of 3) -

Allen Bradley 802PR-LAAM1-08 Proximity Switch 802PRLAAM108 (Pack of 3)

Rees 04917-112 Chrome Push Button Plunger 04917112 (Pack of 3)

Allen Bradley 1771-IAD Module 1771-1AD (Pack of 3) - New No Box

Allen Bradley 1771-IAD/D Module (Pack of 3) - New No Box

Reliance Electric 01UBZ8490001C EoMaster 5HP Frame 1841 3505RPM

UC Components C-812-NA Screw Socket Head Cap C812NA (Pack of 88)

Industrial Devices D2200 Control Board (Pack of 3) -

Schneider TSX-DET-3242 Input Module TSXDET3242 (Pack of 24) -

Schneider TSX-MPM-100 Module TSXMPM100 (Pack of 6) -

STI 28334-02 Mini Safe/ Flex Safe 4300B-2 - New No Box

Fanuc A16B-2201-0110 Circuit Board A16B-2201-0110/05A-Missing IC Chip -

Daytronic 10BVS98 Video Signal Card -

Toyoda 38-27130001-0 Ballscrew X AXIS NSK

Bayside PS90-010-SH Gear Reducer PS90010SH Head Only

IDC TM88-DAD Circuit Board TM88DAD - Rev D (Pack of 3) -

Allen Bradley 1771-IAD/B Module 1771-1AD (Pack of 3) - New No Box

Allen Bradley 1772-LG Processor Control Module (Pack of 3) -

Allen Bradley 1771-IAD/C Module 1771-1ADC SD1BSOKN (Pack of 3) - New No Box

Dadco L.300.025.B28.2175 Nitrogen Spring (Pack of 6)

Toshiba VFS7-4007UPL Transistor Inverter VFS74007UPL

Pepperl + Fuchs 39762 Ident RFID Mircowave MTT-S1 No Cover

Toledo Transducers DISPLAY Display -

Vickers 154L011B-AP2650B Circuit Board 154L011BAP2650B - New No Box

Syron KL8-24VDC KL8-24Vdc KL824Vdc Double Blank Analyzer Missing Cover BDIG-9.3

Siemens 3TF4822-0AR0 Contactor 3TF48220AR0 -

Reliance Electric 0-57413-C Communications Memory Module O-57413-C

Westinghouse A201K4CX Open Contactor -

Modicon AS-J810-000 Interface Module ASJ810000 No Key

Allen Bradley 1775-S4A Scanner Interface 1775S4A -

Joslyn Clark 5DP1-11100 Contactor 5DP111100 - New No Box

Panalarm 50-F1 Relay 50F1 125V (Pack of 6) -

Isel Automation ZR 20 Rotary Step Motor

Atlas Copco K259667-50 K25966750 Cable Assembly

Balluff BTL-A28-0610-Z-S32 Transducer BTLA280610ZS32

Moeller NZM2-XR208-240AC Remote Operator NZM2XR208240AC -

Kalex 74106-442-03 KALEX3K688 Board 7410644203 -

Allen Bradley 6608K1 Remote Modem 19.2KB Factory Sealed

Fanuc IC655MDL581A Output Module IC655MDL581

Modicon M909-000 Memory Module M909000 W/O Battery -

Modicon AS-S908-022 Module S908-000 ASS908022 9950 - Refurbished

Modicon AS-S908-022 Module S908-000 ASS908022 8680 - Refurbished

Robotron 503-2-0324-03 5032032403 CPU/Timer

Modicon M909-000 Memory Module M909000 Rev B Without Key -

Fanuc A16B-2203-069 Circuit Board

USON 403-X300J Uson Corp 403 X300J 403X300J I/O Module -

Stearns 5-66-8452-00 Friction Disk 566845200 (Pack of 10)

Dadco 90.10.01500.075.B11 Nitrogen Gas Spring (Pack of 3) - New No Box

Kaller TU 3000-50 SC Gas Spring TU300050SC 00472151 (Pack of 3) - New No Box

Kaller TU 3000-25 SC Gas Spring TU300025SC 00391925 (Pack of 3) - New No Box

Allen Bradley 8002604402 80026-044-02 80026-044-0

Allen Bradley 803-P8X Rotary Cam Limit Switch Series A PD33330000 - Parts Only

UC Components C-1656-A Screws 3/8-16X3-1/2 (Pack of 40)

Harland Simon H4893P4941 I521 Intella Processor Hi Speed RS422 -

Turck MK13-33EX0-R Isolating Switch Amplifier MK1333EX0R 115VAC (Pack of 3)

Honeywell 4DP7APXIA-11 Input Module Rev D (Pack of 6) -

Parker / Schrader Bellows B902210253 Pilot Valve - New No Box

Viatran 3185ANSK61 Pressure Transducer

Vickers 737322 Pressure Filter OFP-35-S-11 - New No Box

P & H Harnischfeger 79U16D2(L) Bias Module 79U16D2L

Fanuc A16B-3200-0512 Circuit Board A16B-3200-0512/04C

Allen Bradley 1771-OGC Module 1771-0GC D8524 636028 01 521E -

Dynapar M050453 Encoder

Square D 8997 EQ5110-SMB-1 Logic Module Series B

ISSC 330-115A-PB Input Converter D-16-12-033 (Pack of 6) - Refurbished

Boston Gear F726-60-B5-G Speed Reducer

Xycom XVME-566 XVME566 PM101323 I/O Board

General Electric IC600DM756A 16K Memory Module

Yale 647108152S Magnet Brake - New No Box

Dynapath 4202879 Delta Servo Transducer Board PCB B 1082 -

Indramat 109-468-3203 Circuit Board 109-468-3203 B-2 -

Allen Bradley 1771-OF03 1771OF03 Module 96570503 Ser B Rev B 17710F03

Siemens A5E00412608 Trigger Board -

General Electric DS3800NPCT1B1B DS3800NCT1B1B Circuit Board

Allen Bradley 700-RTC11100U1 Relay 700RTC11100U1 Series A - New No Box

Westinghouse A200M1CAC Motor Starter (Pack of 6)

Sew Eurodrive 814 058 8.51 Circuit Board 814058851 -

Yamaha SRCX 20 Motor Control Tested -

UC Components SHCV-5028-A Vented Screw SHCV5028A (Pack of 38)

General Electric C46E Rectifier (Pack of 3) - New No Box

Allen Bradley 1747-L20F Module Boards 459221-0472

Kleinknecht LE10077A2U PC Board

Parker RA2-180 RA2180 Rotary Actuator 346141-082009

Zebra Technologies 77900 Circuit Board DE 44730 (Pack of 24)

Radio Electronics RE530RDS RE 530 RDS Generator -

Fanuc A20B-2900-0154/05A Memory Module A20B2900015405A (Pack of 3) - New No Box

Allen Bradley 634385-90 Circuit Board 63438590 -

Allen Bradley 113325 PC Board Assembly REV 25 -

Allen Bradley 113325 PC Board Assembly REV 09 -

Allen Bradley 113325 PC Board Assembly Rev 11 -

Allen Bradley 113325 PC Board Assembly Rev 08

Texas Instruments 118137 Circuit Board ITTAR Rev B -

UC Components H-2010-NA Non-Vented Screw 1/4-20x5/8" (Pack of 100)

Power Miser I Deluxe Board 10711923 107-119-23

Allen Bradley 113325 PC Board Assembly -

Fanuc A20B-2900-0620/03A Daughter Board A20B29000620 (Pack of 6) -

Square D 8881-B52 Circuit Board -

Square D 8881-B32 Circuit Board -

Square D 8881-B72 Circuit Board -

Square D 8881 B-60 Circuit Board S30586-523-87 Series B -

Square D 8881 B-60 Circuit Board S30586-523-87 0016746 -

Square D 8881 B-60 Circuit Board S30586-523-87 -

Square D 8881 B-60 Circuit Board S30586-523-87 D3O4584-150-O1 -

Square D 8881 B-60 Circuit Board S30586-523-87 Series B D3O4584-150-O1 -

Rockwell Automation 1939191-A02 1939191A02 Circuit Board Rev 07 -

Part SCB4275 Circuit Board SCB4275-B

Xycom XVME-675 VMEbus CPU Module -

Part SCB4275 Circuit Board SCB4275-A - New No Box

Baldor Reliance 0-51B29-2 Circuit Board 051B292 -

Siemens 6AR1508-0AA06-3AA0 Interface Module

Fanuc A20B-2002-0200/03B Board A20B2002020003B - New No Box

Limitorque 0101-061 Declutch Fork Assembly 0101061 - New No Box

Eupec TT 75 N 16 KOF 19E4 Powerblock Thyristor Module (Pack of 3) -

Allen Bradley 803-NK35 803NK35 Cam Kit Series A N-35

STI LCM1 Light Curtain Controller 70116-1000

Fanuc MB8739AE Ic Chip - New No Box

U-C Components FA-605-A Silver Screw 6-32 x 5/16" (Pack of 200)

Reliance Electric O-57404-1E Module 0-57404-1E 0574041E

SKF 2219 KM/P63 2219KMP63 Self-Aligning Ball Bearing

Fanuc A20B-2200-0321 Circuit Board A20B-2200-0321/03C

Cutler Hammer HJD3250F Eaton Circuit Breaker HJD65K Series C

IFM Efector PN7002 Pressure Sensor PN-100-SBR14-QFRKG/US/ /V (Pack of 3)

IFM Efector PN7004 Sensor PN-010-RBR14-QFRKG/US/ /V (Pack of 3)

Balzers BG 598 400 -T BG 598 400-T BG598400T Swivel Motor

General Electric IC600DR500B Programmable Controller

Total Control OP2200B16K Smart Display 0P2200B16K -

Xycom 71674A-300 Circuit Board XVME-675 -

Deublin Company 2200-000-096 Rotating Union (Pack of 3) - New No Box

Allen Bradley 975195-01 Comm Adapter 97519501 Rev B -

Allen Bradley 975195-01 Comm Adapter 97519501 Rev B01

Allen Bradley 975063-01 Rev B ID33830 Communication Adapter 1775-KA

Allen Bradley 2700IM1 Interface Module

Parker 0162DDA014.00 0162-D-DA-01-4.0 - New No Box

Allen Bradley 1775-KA Communication Adapter Module T8431 -

Allen Bradley 1775-KA Communication Adapter Module ST0AI3GI -

AEG Modicon AM-C996-804 Processor Module -

Allen Bradley 96504306 Communication Adapter 1775-KA

Allen Bradley 1775-KA Communication Adapter Module

Parker 3349122147 Rotary Pump - New No Box

UC Components SHCV-5028-A Vented Screw SHCV5028A (Pack of 25)

Allen Bradley 975063-01 Rev A01 ID33830 Comm Adapter 975195-01

Allen Bradley 965043 01 1775-KA Comm Adapter 975195-01 STOBK3KF

Allen Bradley 1775-KA Communication Adapter Module ST0AU2TX -

Browning 4MVP40B54X 1 5/8 Sheeve 4MVP40B54X158

Part FG0485-0901 Reflector (Pack of 24)

UC Components C-2080-SVA Screw 1/4-20x5" (Pack of 50)

Allen Bradley 6608K1 Remote Modem 19.2KB

Allen Bradley 1785-LT4 Module 1785LT4A - New No Box

General Electric 55-501493G002 Coil Replace Kit Ser.

Allen Bradley 520FBOD 520F-BOD 2 Speed Starter

Steel City 6H0B Conduit Hanger W/Hardware Shown (Pack of 24) - New No Box

Atlas Copco 9810075096 Cable Assembly

Continental Industries RSAA-660-40-1D0 Relay (Pack of 6) - New No Box

Rittal 4183000 Combination Kit (Pack of 10)

Stentofon 6034-2096 Phone IPC Turret Station (Pack of 3)

Robotron 503-4-0305-02 Weld Control Series 400 5034030502

Xycom XVME-675 VMEbus CPU Module Without Clips -

GE Fanuc IC660EBD101S Electric Module

Syron DIS0254 Contact Style Sensors (Pack of 3) -

Allen Bradley 803-NK35 803NK35 Cam Kit Series A N-35 W/O Washers

ABB EHW160W Weld Controller

Allen Bradley 160-BA01NPS1 160BA01NPS1 Speed Controller Series C

Browning U1 4 Split Taper Bushing 4" 1071786

Modicon 110CPU51203 CPU Module

Trane 49500468 Operator Display -

Toshiba SVC-1J6 Vacuum Interrupter SVC1J6 - New No Box

Moore 352EA21CNF Process Control Board

Allen Bradley 440L-R4K0800YD Light Curtain 440LR4K0800YD -

Honsberg MR1K-008GM004 MR1K008GM004 07SN020998 - New No Box

Yamatake 82407468-002 Honeywell 82407468002 Regulator Board

Yaskawa JAMP-MPZ01B Drives-Serco PCB DF8203623B0 (Pack of 3) -

Ward Leonard 7000-2140-11 Contractor 7000714011 (Pack of 3) -

Graco Robotics CP83011 Circuit Board CP 830 11 (Pack of 3) -

Siemens CLM0C04120 AC Lighting Contactor (Pack of 3) - New No Box

General Electric SE100J Circuit Breaker Enclosure

Nachi 40TAB09BFF/GM P4 Angular Contact Bearing 40TAB09BFF (Pack of 3)

AC Autotech E7N-D1000-8P0SS E7ND10008P0SS Digisolver

Boston Gear F72450B5G Gear Reducer - New No Box

General Electric 531X300CCHADM1 Control Card

Vishay 93985497 Torque Sensor Transducer

Gemco 1989A48R12SEX Quik Set III

Armstrong X-16 Ratchet Set

Schneider 140-CPS-114-20 Power Supply Module 140CPS11420

Allen Bradley 8600 BP7G CPU Module 9327738Y--RF -

FAG 61919 M 61919M Ball Bearing 61919A

DSI SUB-00177 Circuit Board PWB-00032 -

Dynamatic Limited A35.5L38123 Hydraulic Pump (Pack of 3) - New No Box

Emulex MT0210403 SCSI Controller Rev J

Joslyn Clark 5DP2-21900 5DP221900 Contactor 56A 500VDC 3 Pole

U-C Components C-2420-NA Screws (Pack of 23) - New No Box

Reliance Electric 0-51865-15 05186515 CLDS Board

Joslyn Clark 7000804081 Contactor 7000-8040-81 (Pack of 3)

Modutec 04-900215 04900215 Digital Panel Meter (Pack of 6) - New No Box

Fanuc A660-2006-T914 Teach Robot Pendant Cable L-11MA 30' Cable

General Electric 72F328 Capacitor (Pack of 10) - New No Box

Gardner Denver 1B050A Servo Motor

Lambda LXS-C-15-R LXSC15R Regulated Power Supply

Square D 8881-MA1 Output Address Card C30585-037-01 - New No Box

UC Components BU-2408-NA Screw 10-24x1/2" (Pack of 22)

Fanuc A20B-8001-0121/02A Board A20B8001012102A

Atlas Copco TC 52P-N 4240041080 Controller Drive Unit

Allen Bradley 90042992 Circuit Board JLX 01 99423-533 9626 -

Allen Bradley 90042992 Circuit Board 31M 01 99391-424 9621 -

Allen Bradley 90042992 Circuit Board 99389-811 9621 -

Allen Bradley 90042992 Circuit Board TOS SSH 01 99389-810 9621 -

Xycom 99384-001 Detection & Recording Card 99384001 -

Fanuc A20B-2900-0442/02A Memory Module A20B2900044202A (Pack of 3) - New No Box

Frog Navigation Systems 22086 Transmitter

AW Company FOP-30 Fiber Optic Transmitter (Pack of 3)

Octagon Systems 35-028410 Circuit Board PWB 35-028410 (Pack of 3)

Gemco 1988S-10-X Quik-Set II Control Panel No Key -