6ES7421-7BH01-0AB0 控制主轴

6ES7421-7BH01-0AB0 控制主轴

RC吸收网络：RC吸收网络提供瞬间电压保护电路，以减少dv/dt冲击电压。防止SCR模块的损坏。

E、触发电路：SCR是用一个持续的脉冲触发电路，这个电路是采用光纤和脉冲变压器进行隔离。

F、主真空接触器：主真空接触器是用来切断主电源和SCR回路的，其电压比率是：5KV用于2300—4160V，7.2KV用于6000—7200V，15KV用于10—15KV的软起动器。

应用于顺序控制下的接触器。在正常使用条件下保证其起动次数能够达到设计时非负载状态下的使用寿命。主真空接触器是设计在大起动比率，旁路接触器是设计在紧急起动的比率。10-15KV 600A的起动器采用真空拉出式的接触器，其容量为15KV 600A。这个控制装置有两个指示灯、三个电流计时器、电流过流继电器，并且有一个电容型器件。旁路接触器装置也有两个指示灯和一个电容跳闸元件。

⒉电子控制系统

HPMV系列电子控制电路分为低压、中高压两部分，并隔离成两个独立的部分。低压电子部分包括控制界面和接口，CPU和主电源板是安装在低压控制室中。

A、CPU主控板：CPU板上装有微处理器和通讯处理器，CPU决定各种操作功能，根据用户的设定程序和检测反馈信号来进行控制，CPU主板上装有EPROM、EEPROM和DRAM寄存器，以及模拟和数字接口。

B、主电源板：也称为主触发板，它包括数字输入输出继电器和接口，并连接到TCB板上，它控制旁路隔离接触器的动作顺序和SCR的触发，这个板子上产生全部触发信号和接收来自光纤隔离的反馈信号，把模拟信号转换为CPU的数字信号，这些触发脉冲也是利用光纤对中高压环境进行隔离。

C、电压、电子控制部分：中高压主电源应在TCB、触发驱动器和TEMP/CT控制板工作之前断开。

D、TCB（Terminal and Control Board）终端控制板是用户的接线板，为了满足UL安全标准，它位于中压部分，但是并没有实际和中压部分联结，只是和接触器的控制线圈有连接，这个板子上包括用户接线端子排、输出继电器（全部相同）输入和控制电源接线、并且包括时间继电器用于功率因数调整继电器和其它外部元件。

E、触发驱动板：位于SCR模块组件上面，这些板子和主电源板通过光纤进行通讯联系，通过脉冲变压器把触发脉冲信号进行放大来触发SCR，在每个SCR模块中每一对SCR使用一个触发驱动电路板。

F、TEMP/CT：温度控制板和电流互感器板子是装在SCR模块组件上，通过光纤把散热器温度和电流信号送到主电源板。

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YOKOGAWA 20-35120-7 IGNITION EXCITER

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Yokogawa 203811 Portable Frequency Meter

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Yokogawa 2041 Single Phase Wattmeter Instruction Manual

Yokogawa 2041/2042 Standard Wattmeters Service Manual

Yokogawa 204101 Portable Single Phase Standard Wattmeter

YOKOGAWA 204102    204102

Yokogawa 204102 Portable Single Phase Standard Wattmeter

Yokogawa 204103 Portable Single Phase Standard Wattmeter

Yokogawa 204111 Portable Single Phase, Low-power-factor Wattmeter, 0.2

Yokogawa 204112 Portable Single Phase, Low-power-factor Wattmeter, 1/5

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Yokogawa 204202 Portable, 3-phase Wattmeter, 1/5 A; 120/240 V

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Yokogawa 205303 AC Ammeter, Miniature-size Portable 5/10/25 A

YOKOGAWA 2061-00     206100

Yokogawa 207110 AKG-N-B-BL Meter U

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Yokogawa 2085A30 A44-N-K-BL Panel Meter      

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Yokogawa 2105 JIS C 1102 0- -240/ 0- +240 MW U

Yokogawa 2105 JIS C 1102 0- -400/ 0- +400 MW AC Watt Meter 3PH 3Wire U

Yokogawa 2105 JIS C 1102 0-20 MW AC Watt Meter 3PH 3Wire U

Yokogawa 2105 JIS C 1102 0-40 MW AC Watt Meter 3PH 3Wire U

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Yokogawa 2111 Pressure Gauge

YOKOGAWA 2181A36 AHE-N-L-BL , Switchboard Analog Loop Indicators 0-175bar      

Yokogawa 218200-A42 0-150A AC Panel Meter

YOKOGAWA 2217-02 2,000A 0.1% Current Shunt 2KA

YOKOGAWA 2241 PORTABLE CURRENT TRANSFORMER 10-1500A /5A 0.2% (#1261)

YOKOGAWA 2261-01   226101

YOKOGAWA 2283 TRANSDUCER

Yokogawa 2283 Transducer YEW

YOKOGAWA 2283   2283

YOKOGAWA 2285 TRANSDUCER

Yokogawa 2285 Transducer YEW -       No Box

YOKOGAWA 2302 21-VLE-2 24 VDC ELECTRONIC HYBRID METER

YOKOGAWA 2302 21-VRX-2 24 VDC ELECTRONIC HYBRID METER

YOKOGAWA 2302-1-1-ALE-2   230211ALE2

YOKOGAWA 230211-VLE-2    230211VLE2

YOKOGAWA 230211-VLE-2   230211VLE2

YOKOGAWA 2302-1-2-VLE-2    230212VLE2

YOKOGAWA 2302-1-2-VLE-2   230212VLE2

Yokogawa 2302-1-3-VLE-2 Digital Hybrid Panel

YOKOGAWA 2302-2-1-ALS *      IN A BOX*

YOKOGAWA 230221ALS-1FS/0-5ACA *      IN A BOX*

YOKOGAWA 230222-ALS-2     230222ALS2

YOKOGAWA 2302-3-2    230232

YOKOGAWA 230232-VLE-11   230232VLE11

YOKOGAWA 2343-01 DIGITAL CLAMP ON METER 300V 600V 1000A

Yokogawa 2343-02 Clamp-on Tester w/ Carry Case and Manual

Yokogawa 2351 00 DC Voltmeter 61LH2650 Digital Panel Instrument

Yokogawa 2351 00 Volt Regulator 235100 -       No Box

YOKOGAWA 235100-30-11     2351003011

YOKOGAWA 235100-50-1-0   2351005010

YOKOGAWA 235100-90-10     2351009010

YOKOGAWA 2353 / 2351 DIGITAL AC VOLTMETER       CONDITION / NO BOX

Yokogawa 235300 AC Voltmeter

YOKOGAWA 235300-04-10   2353000410

YOKOGAWA 235300-04-10/ECP   2353000410ECP

YOKOGAWA 2354 30 (3-Phase 3-Wire) 64LM0020 50/60 Hz 4.5 VA Max. 240V 600A *      *

YOKOGAWA 235424-001     235424001

Yokogawa 2354-40-4004-14DBY Panel Meter 6 Function DPI 120V 5A

YOKOGAWA 2354-40-4004-14DCA   235440400414DCA

YOKOGAWA 235510-4004-13   235510400413

YOKOGAWA 235510-70XX-15/10A   23551070XX1510A

YOKOGAWA 235520   235520

YOKOGAWA 235711-7004-10DAD   235711700410DAD

Yokogawa 2358 00 Frequency Meter 2358 Yokogawa Electric Corporation **Free DHL E

YOKOGAWA 235903-4004-50DAG     235903400450DAG

YOKOGAWA 236231-08     23623108

YOKOGAWA 2374-AC120   2374AC120

YOKOGAWA 2375 POWER LINE TRANSDUCER *      IN A BOX*

YOKOGAWA 2378A02-37-AHE-2   2378A0237AHE2

Yokogawa 24 Channel Dot Recorder UR1800 Model 437024 free ship

YOKOGAWA 240 TIME METER T9087

YOKOGAWA 240001AAAA7     240001AAAA7

YOKOGAWA 240001AAAA7   240001AAAA7

YOKOGAWA 240-004-AAAA     240004AAAA

YOKOGAWA 240211AAAB TIME METER 120V *      IN A BOX*

YOKOGAWA 240211AAAB TIME METER 120V *      IN A BOX*

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Yokogawa 240211AAAB7 Time Panel Meter 120VAC 60Hz

YOKOGAWA 240211AAAB7 TIMER

YOKOGAWA 240211AA-AB8   240211AAAB8

YOKOGAWA 240211AEAB8    240211AEAB8

YOKOGAWA 240212AAAB 6 DIGIT TIME 120V-AC 3W METER D418478

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Yokogawa 240311 Time Meter / Hour Meter - Excellent w/ 30 Day Warrantee !!

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Yokogawa 240311AAAB Time Meter Non-Reset

YOKOGAWA 240311AAAB7 NSFB

YOKOGAWA 240-311-AAAB8    240311AAAB8

YOKOGAWA 240-311-AAAB8   240311AAAB8

YOKOGAWA 240311AAACZ 120 VAC 60 HZ ELAPSED TIME METER

YOKOGAWA 240313AAAB     240313AAAB

Yokogawa 240314ABAB Elapsed Time Meter

YOKOGAWA 240-611-AAAD     240611AAAD

YOKOGAWA 240-611-AAAD-7    240611AAAD7

Yokogawa 240611ABAD Elapsed Time Meter

YOKOGAWA 240612AAAD7 TIME METER 120V *      OUT OF A BOX*

YOKOGAWA 240632AAAE7 *      IN BOX*

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YOKOGAWA 240711AAAD7 120V/60HZ Elapsed Time HOURMETER

YOKOGAWA 240711AA-AD8 *      IN BOX*

YOKOGAWA 240711ABAD7     240711ABAD7

YOKOGAWA 240712ACAD7 TIME METER *      IN A BOX*

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YOKOGAWA 2411632AAAE7 *      IN BOX*

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YOKOGAWA 2426 DIGITAL INSULATION TESTER--MINT CONDITION & TESTED TO WORK

YOKOGAWA 2426A DIGITAL INSULATION TESTER

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YOKOGAWA 246921-380-AHD-1 CURRENT TRANSDUCER

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YOKOGAWA 246943-540-AFB-1-0-M    246943540AFB10M

YOKOGAWA 246945-540-AFB-1-0-N     246945540AFB10N

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YOKOGAWA 246953-540-AHD-1-0     246953540AHD10

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YOKOGAWA 248932-330-AFA-1     248932330AFA1

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