ca10a201-600ft2
随着电子技术的飞速发展,单片机也步如一个新的时代,越来越多的功能各异的单片机为我们的设计提供了许多新的方法与思路。对于莫一些场合,比如:复杂的后台运算及通信与高实时性前台控制系统、软件资源消耗大的系统、功能强大的低消耗系统、加密系统等等。如果合理使用多种不同类型的单片机组合设计,可以得到极高灵活性与性能价格比,因此,多种异型单片机系统设计渐渐成为一种新的思路,但单片机之间的通信一直困扰种方法拓展的主要问题。本文将分析比较几种单片机之间的方式、难点,并提出一种解决方案。在近日举办的中国国际国防电子展上,国内知名固态硬盘厂商源科(runcore)展示了从到民用各个级别的多个系列ssd(固态硬盘)产品。源科从军工产品起家,得到国防科大的大力支持。因此,源科的所有技术均源自军工技术。
“大家都知道军工产品的可靠性和安全性较高,将这些特点带到消费和民用市场,则成为主要竞争力。所以可以说源科的设计团队和产品都带有一丝‘军工气质’”,源科公司总经理吴佳表示,大家知道,无论何种高新技术,一般都被首先用于军事和国家安全。在军事领域,其发展路线也可以总结为:航天-航空-舰船。终当民用市场出现较大需求时,该技术则转为民用,比较明显的例子除了固态存储,还有cdma等通讯技术。
军工和民用的定位不同;军工产品注重品质和稳定性,民用产品则更体现和应用。吴佳指出,除此之外,国际和国内市场的策略也略有不同。在国内,源科主要定位面向海外市场的中高端产品,跳出中国企业走低端低价路线的怪圈,定位于高品质的市场,以此赚取较高的附加值。他说,“固态存储大约20年前即被用于飞机上的数据存储,实际是非常成熟的技术,在消费等民用市场,ssd普及的主要推动因素除了价格,主要还有对传输速率的需求。现在的sata2已经不能满足消费者对存储速率的要求,而传统硬盘(hdd)又成为sata3的瓶颈,这就客观上成为ssd迅速发展的推动力”。
ftdi的vinculumvnc1l提供了一个低成本微控制器与usb2.0低/全速外设之间的接口,易于使用和编程,其指令集类似于dos命令,可在微控制器环境下很容易地编写调试数据以及传输例程,同时设计简单,使嵌入式系统能以较低成本实现usb主机功能。因此用户将可以采用低成本通用usb闪存盘作为系统存储媒介,而且还能在现场进行软件升级。此外vnc1l还可用于连接除了大
容量存储设备之外的很多其他usb外设,不过这部分内容在本文讨论范围之外。
vinculumic给usb接口增加不到10%的功耗,对系统而言更低,但能以非常容易及直接的方式为便携式设备增加usb2.0主机控制器端口。vdap固件以及介绍完整指令集的文件可从ftdi的vinculum网站下载。
在pic引脚2和3之间接入一个20mhz晶振可在其uart接口获得高达115200bit/s波特率,而使用内部8mhz振荡器只能获得高9600bit/s波特率,因此加接晶振可提高系统性能。pic的io引脚rc2和rc3都被固件使用,以模拟与vnc1luart连接的rts/cts握手信号。系统由pic上的固件控制,数据传输则由pic发出的指令控制,该指令由vinculum上的标准固件进行解释。虽然说起来很简单,但完成设计还有其他一些工作要做,例如器件还需要电源、控制时钟的晶振以及编程。 泰克实时示波器中的选件ddra(dpo的泰克实时示波器/dsa70000系列,mso70000系列,dpo7000系列)是一个软件工具,用于ddr设备测试设置和自动化测试。ddra提供的符合jedec规范的广大的测量设置,但对于非标准设备或系统工程,用户也可以选择自定义多个设置完成测量任务。目前此软件选件支持六种不同的ddr技术:ddr、ddr2、ddr3、lpddr、lpddr2和gddr3。
选件ddra连同泰克示波器上的另外两个软件:搜索&标记(选件asm,上面已描述)和dpojet抖动和眼图分析工具,这三个工具结合在一起使用,建立了一个强大、灵活且易使用的ddr测试和调试套件。
随着时钟速率和数据传输速率不断增加和性能的提高,设计工程师必须保证系统的性能指标,或确保系统内部存储器和存储器控制设备的互操作性,存储器子系统的模拟信号完整性已成为设计工程师越来越多重点考虑的问题。许多性能问题,甚至在协议层发现的问题,也可以追溯到信号完整性问题上。因此,存储器的模拟信号完整性验证已经成为很多电子设计验证关键的一步。
jedec(电子工程设计发展联合协会)已经明确规定存储设备详细测试要求,需要对抖动、定时和电气信号质量进行验证。测试参数:如时钟抖动、建立和保持时间、信号的过冲、信号的下冲、过渡电压等列入了jedec为存储器技术制定的测试规范。但执行规范里的这些测试是一个很大的挑战,因为进行这些测试很可能是一个复杂而又耗时的任务。拥有正确的工具和技术,可以减少测试时间,并确保准确的测试结果。在本应用文章中,我们将讨论针对存储器测试的解决方案,这个方案能够帮助工程师战胜挑战和简化验证过程。
几乎每一个电子设备,从智能手机到服务器,都使用了某种形式的ram存储器。尽管闪存nand继续流行(由于各式各样的消费电子产品的流行),由于sdram为相对较低的每比特成本提供了速度和存储很好的结合,sdram仍然是大多数计算机以及基于计算机产品的主流存储器技术。ddr是双数据速率的sdram内存,已经成为今天存储器技术的选择。ddr技术不断发展,不断提高速度和容量,同时降低成本,减小功率和存储设备的物理尺寸。系统设置了一个全局链表 mempartion **partition_list 来存储所有的内存分区指针,该链表的长度可以动态定义。也就是说分区的数量可以动态定义。链表中的分区需要进行排序,排序的标准是每个分区中内存块的大小,内存块小的分区排在前面,内存块大的排在后面。因为分区采用首次适配的算法,排序以后可以减少内存浪费。
同时,系统提供了mem_alloc/mem_free两个函数来支持系统分区的申请和释放。申请的算法很简单,采用首次适配方法从分区链表中找到合适内存分区,如果该区空闲内存链表不为空,则返回该链表个内存块地址,否则查看下一个分区。如果找不到合适的内存块,则返回空指针。
释放算法稍微复杂一些,它需要先检查该内存块属于哪个分区。这样做非常必要,如果把一个小块放到大块的内存分区中,一个任务申请了该空间,则该空间的一部分将跨越到另一个内存块,对该内存块的操作可能覆盖另一个内存块的数据。如果把一个大块放到了小块的分区中,则在分配的时候将分配了多余的空间,造成了内存空间的浪费。找到所 图2创建内存分区流程图属分区后,直接把该块放到该区空闲内存链表的尾部。
上述系统分区的方式其实是小范围动态分区上实现的静态方式。因为每个内存块大小是固定的,这样不可避免地要浪费一部分空间。对于这个问题的解决,系统还提供了一种纯动态的解决办法,就是调用malloc/free函数来申请内存块。从内存划分图中可以看到有一块用户内存区,这是一块内核不会使用的内存区。该区留给用户使用,对于这块区域的申请和释放不调用系统提供的mem_alloc/mem_free函数,而是直接调用c语言提供的malloc/free函数。malloc具有不确定性,因为它的执行时间和空闲内存块的数量有关,而且多次使用malloc/free调用和释放内存块,可能产生大量的内存碎片。所以这种方式的调用要谨慎。由于用户内存区大小是可配置的,所以用户可以控制该区大小以减少碎片产生的问题。同时对于系统调用,例如任务堆栈分配,不会因为碎片太多而导致分配失败的问题。在嵌入式市场上,随着消费者要求新产品定期增加功能或提高应用灵活性,开发人员对修改系统应用功能的快捷性和简便性要求越来越高。从存储器角度看,这预示着可能需要用性能更高、合格检测更快的产品更换现有产品。新一代非易失性存储器应具备各种参数微调功能,能够缩减应用电路板的工程周期。不同应用在不同的容性负载下需要不同的工作频率,这项要求与芯片组的性能以及电路板布局和复杂性紧密相关。例如,高频工作环境通常对电性能的优化要求严格,设计工程师需要考虑整个电路板上的电噪声,以降低线路的寄生电容。在这种情况下,降低存储器输出驱动器的强度更加受欢迎。此外,还必须根据工作频率优化指令执行速度。有时候,要想在发送命令后取得适合的高效的吞吐量,就必须减少空时钟周期次数。
在应用电路板测试阶段,为了正确地激励存储器、查看存储器的响应,微控制器需要全套的命令和功能。这项操作灵活性测试通常用于检测全部系统组件,以确保产品在生命周期内的功能。相反,标准的客户终应用只使用一个精简的指令集。例如,在使用spi闪存时,终应用通常使用读指令(正常、快速和/或4位i/o输入输出),把启动代码下载到ram存储器。
设计人员应该优化存储器,以缩减系统上电期间的代码读取和下载时间。在新的的平台上,如车用电子、计算机光驱或蓝牙模块,spi闪存可能用于直接从非易失性存储器读取部分系统固件,以缩短系统固件下载到高速易失性存储器的过程。当然,目前出现的新应用对存储器的灵活性要求更加严格,本文稍后再做详解。
spi闪存的的优点是引脚数量少而且固定不变(8个或16个)。串口闪存的这个特性可简化电路板布局,无需更改硬件即可升级固件,从而可以降低系统开发的总体成本。
由于在简易性和成本方面的强大优势,pc机和消费电子市场出现了并口闪存改用spi闪存的发展趋势。只要达到性能要求时,设备厂商就会优先选用串口闪存。计算机光驱、汽车电子、蓝牙模块、机顶盒和调制解调器市场正在引入这种能够把代码直接读到非易失性存储器内的spi闪存。
xip(片内执行)应用要求串口存储器提供一种“随机访存”仿真功能,即无需发送指令即可访问存储器内容,并准许以大的吞吐量访问存储器。因为传统用途是存储和下载代码,所以spi存储器是同步器件,xip功能迫使设计人员研发灵活的存储器,能够根据芯片组特性灵活地配置串行闪存。例如,在系统上电后,具有xip功能的器件需要基于命令、地址和数据的jedec协议,所以有些逻辑器件不准像管理xip器件一样管理串口闪存。
此外,有些逻辑器件只在一条线上或者多在两条线上支持xip模式,因为固有的硬件限制,不可能开启4位i/o输入输出模式。
后,因为实现一个混合协议、接受命令的传统存储器和不接受命令的非传统存储器的设计困难,芯片组厂商更愿意保留原有的spi指令结构,即命令、地址和数据。在这些情况下,高速协议结合并行化命令、地址和数据的方案更受市场欢迎。
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主营dcs系统配件
机器人系统配件
大型伺服系统配件
:abb ,ab ,ge,foxboro,本特利,英维思,伍德沃德,西屋,瑞恩,施耐德,西门子,摩托罗拉,安川。力士乐。acso,横河等进口。
triconex siemens yaskawa abb ge ovation ab foxboro motorola schneider xycom kuka
vickers servo valve sm4-20(1)3.8-80/40-10 ass'y 855380
vickers servo valve sm4-15(2.5)9-80/40-10 ass'y 635664
yaskawa servopack cacr-sr15sz1sdy77 servo drive rebuilt
vickers servo valve sm4-10(3.75)14-80/40-10 assy 927933
vickers servo valve sm4-15(1)3.8-80/40-10 ass'y 855366
vickers servo valve sm4-20(15)57-80/40-10 ass'y 682121
moog g631-342c servo valve new w/warranty
aeg servo motor~120-088-005~rebuilt~w/6 month warranty
moog g631-3600b servo valve rebuilt 12 month warranty
moog g631-3005 servo valve rebuilt 12 month warranty
yaskawa servopack cacr-sr15sz1sdy77 servo drive rebuilt
vickers sm4-15(10)38-80/40-10 ass'y 682135 nos w/box
rexroth 4wree6w32-22/g24k31/f1v proportional valve
rexroth 4wree 6 e16-20/g24k31/a1v proportional valve
vickers prop valve kbfdg4v 3 2c03f z pe7 h710 rebuilt
moog flight simulator valve 31s020 rebuilt w/warranty
moog flight simulator valve 76-212 rebuilt w/warranty
new moog d633-255a servo valve r16ko1m0n6m2 nib warr'ty
yaskawa sgmss-15a2a2c-y2 servo motor w/warranty
ormec mac-e030hj2/k1a servo motor~rebuilt~6m warranty
new moog d633-365b servo valve 1 year warranty
indramat servomtr mac090b-0-jd-4hc-110-a-0-w1524lv-s001
fanuc servo motor model a06b-0857-b190 used
fanuc servo motors a06b-0522-b251 rebuilt ~warranty~
new~yaskawa servo pack/servopack~cpcr-fr02~nib
new! moog servo valve # 771k602 w/13 month warranty
sauer sundstrand r7232a1028 remote amplifier refurb'd
pacific scientific r63gena-np-rw-vs-02 servo motor
allen bradley n-5630-2-h04aa servo motor nos
parker d3fhe80ycnbj0020x6048 servo valve rebuilt
fanuc a06b-0314-b074 #7000 servo motor rebuilt
electrocraft position controller~pdm-10/pn 9101-2161
new indramat nfd02.1-480-075 power line filter nib
abb robotics ps90/6-38p-lss-3822 servo motor 3hab3309-1
new! mitsubishi h series power supply~ # mrh-15-kan~nr!
indramat mac090a-0-zd-4-c-110-a-0-wi524x-s001 motor
vickers prop float control valve cvu 32 epq19 38 10 new
abb robotics/elmo servo motor ps60/4-50-p-lss-3823 used
refurbished~reliance electric~ac servo drive~# 3ra2004
fanuc servo motor model 5f type a06b-0342-b231 used
indramat dkc01.1-040-7-fw servo drive rebuilt
fanuc servo motor model a06b-1006-b100 used
new! moog t161-504a servo drive~nib~w/6 mo. warranty
new~yaskawa servo pack/servopack~cacr-sr02~nib
yaskawa servo drive sgdb-10an rebuilt w/warranty
new moog 061-606c servo valve 12 month warranty
abb servo motor~65123010v002lg1e~rebuilt~6m warranty
moog d634-1001 direct drive valve rebuilt w/warranty
servo kinetics/ tokyo precision 403 servo valve rebuilt
herion servo valve model 59-924-25 rebuilt w/warranty
parker/dyval servo valve model 10s new w/warranty nib
sundstrand servo valve v7059c1002 w/ 13 month warranty
infranor mavilor m0 2000t ms series servo motor mo2000t
new yaskawa sgmss-15a2a21-y3 servo motor w/warranty
indramat mdd065d-n-060-n2l-095pb0 servo motor w/warr'ty
vickers prop. valve kbsdg4v 3 96l 24 ph7 h7 10 en83 new
siemens servo motor 1ft6086af711aa used
fanuc spindle motor a06b-0729-b302 #3000 used
siemens servo motor 1ft6084-8ah71-3alo-z
allen-bradley servo motor 1326ab-a1g-11 p/n 122285 used
mts automation servo motor mpm1902frmm-963 used
mts automation servo motor mpm1902frmm-963 rev b used
fanuc servo motor model a06b-0501-b501 used
abb servo motor rsy264.30-2 r4-4/s23/s60~rebuilt~nr!
new~yaskawa servo pack/servopack~cacr-sra5~nib
aeg a/c servo drive~a720-020~gettys a700 series~used
siemens servo motor 1ft5062-0af01-0-z used
vickers smc20enh08bne22420s16 motion controller~nos
vickers smc20e-n-h08n-r2-115-110 controller w/ manuals
new moog d633-317a servo valve r04ko1m0nsm2 nib warr.
emerson positioning servo drive dx-450 rebuilt & tested
moog servo motor model g405-171 nib 13 mo warranty! new
schenck pegasus 180rb servo valve pls 4076-v rebuilt
iss tokyo precision 3f-30l-30-14.145 valve rebuilt
rexroth 4wrae6w30-21/g24n9k31/a1v prop valve new
new! moog dynamic brake unit ds2000 cz1000c4 w/warranty
moog mopac 32 injector control 126-320b
aeg a/c servo drive~a710-000~gettys a700 series~used
new hr textron 22253962-002 /917as209-z servo valve nib
honeywell/sundstrand v7059a1139 servo valve nos
new lhc servo valve 007-23-03a w/13 month warranty nib!
rexroth 4wrae 6 w30-22/g24k31/f1v proportional valve
nos bosch 0811 404 146 valve nib 0811404146
yaskawa sgms-15aca-tv11 servo motor utoph-250wa encoder
honeywell transfer valve v7058a new
rexroth proportional valve 4wree 6 v16-22/g24k31/fiv
parker servo valve bd15 rebuilt - 12 month warranty
fanuc a06b0377b575#7075r servo motor a06b-0377-b575 new
pacific scientific r43ssna-hs-ns-nv-02 servo motor nos
moog servo proportional valve 641a212b rebuilt
tokyo precision 304f-60l-20-21-b servo valve new
parker d1fxe01benbj0040x6264 proportional valve nib
rexroth dree20-52/315yg24k31m valve pressure reducing
new star 454-0005 servo valve 1 year warranty nos
new! star servo valve 454-0006 w/13 month warranty nr!
new! dyval/dynamic servo valve #5 w/13 month warranty
indramat servo mtr mac112d-0-ed-4-c-13-a-d-wi520lv-s005
powertec servo motor f147g3a0n907010 used
donzelli 14001 hydraulic motor rebuilt w/6 month warr.
pacific scientific servo motor r63genp-r2-ns-nv-00 used
indramat servo motor~mkd090b-047-gg0-kn~rebuilt
parvex servo motor model mc17ha8225 new in box
moog servo system controller used
siemens servo motor 1fk6083-6az21-9zz9-z-s04
indramat servo motor mac093b-0-gs-4c-11-0-b-0-wi520-s01
indramat servo motor mdd1120-n-030-n2l-130-gb2 used
fanuc servo motor model 20f type a06b-0352-b731-r used
moog servo motor model 306-131a used
moog servo motor model g405-504 nib 13 mo warranty! new
moog servo motor g405-181 d147 nib 13 mo warranty! new
moog servo motor g403k002 d109 nib 13 mo warranty! new
moog servo motor g404-001 d125 nib 13 mo warranty! new
allen-bradley servo motor 1327aa-ab-15-g used
vickers servo motor type fas t3 m4 030 10 2 16 used
aeg servo motor model 120-088-005 used
indramat servo motor mac112c-0hd-2-c-130-a-0-s05 used
siemens servo mtr 1ft55104-0af01-2-z #e c2
indramat servo motor mac112b-0-gd-1-b-130-a-0-j625-s05
ormec servo motor mac-b050c-k1a used
mitsubishi ha-se52 servo motor nos
ormec servo motor model mac-b080d/k1a used
indramat line conditioner~nam1.2-15~connect module 3ph
new parker servo valve d1fle01fcntj0020 w/13 m warranty
rexroth ehst-3-fve-30 prop pressure control valve new
reliance servo motor 1326ab-b530e-21-k5 used
accudyne ad-004-010es1-d stepper motor rebuilt-warranty
kollmorgen servo motor model b-204-a-21 used
siemens servo motor 1fk6060-6af71-1th0 used
siemens servo motor 1ft5072-0ac01-0-z
yaskawa servo motor usaded-45-4r14 used
moog 306-001 servo motor used
pacific scientific servo drive~sc322a023~rebuilt
parker proportional valve ehd31vjl1c7/234912-23a bertea
moog servo controller 152e508 rebuilt- ready to go!
moog servo drive amplifier control 152d423 rebuilt
ems ac servo drive # g3u-22p2 used ~ 6 month warranty
new! moog rack mount servo amplifier t161-504a nib! nr!
reliance electric servo motor s-4050-p-h00aa used
indramat servo drive kds1.1-100-300-w1-115 ~rebuilt~
vickers proportional valve ksdg4v396l40mu1h711 new!
panasonic servo motor~mfa040lb2nsa~rebuilt~6m warranty
siemens servo motor 1ft5064-0af01-2-z used
moog servo motor model g416-400 nib 13 mo warranty! new
actus power servo motor na20-1.5f-g10~rebuilt~w/waranty
panasonic servo motor mfa075lb2bsa rebuilt ~warranty~
indramat btm03.1-na-ta-ta-ba-ba-ra-2ff operator panel
rexroth ehst-3-fvf-40 prop pressure control valve reb.
schenck pegasus 25c servo valve pls 4424 nos
moog t150-901b-702-1a power supply 6 month warranty
new! parker servo valve d1fte01ccvf0022 w/13 m warranty
control techniques dxm-340w servo motor
allen bradley 1326ab-a3e-11 servo motor refurb'd w/warr
cei jp15-110 servo valve / control enterprises inc
hartmann controls inc rol-vane ht10 hydraulic motor
siemens servo motor 1ft5066-0ac01-0-z used
new joucomatic proportional valve 833-355101203 waranty
pacific scientific r33genc-r2-ns-nv-00 servo motor
new parker dyval 10-1100/200/80/20.0 proportional valve
moog controller t161-901a-10-e5-2-9a new
denison seo3 proportional pressure control valve rebilt
parker digiplan blh75b servo drive rebuilt
indramat servo motor mkd025b-144-kg0-kn rebuilt waranty
alpha getriebebau servo motor sp075-mf2-20-121-000 used
allen-bradley servo motor 1326 dpsic used
moog 164-007b-00-a7-2 digital motor controller rebuilt
schneider electric servo motor bph0952n5mf2la1
yaskawa servo motor usaded-37-yr27x
malvin electronics 2106-1 flight simulator 2127152-001
vickers servo motor fasa2240030161500 used
moog servo motor 305-131a used
emerson servo motor dxm-205 part #861115-50 used
thomson micron servo motor 42-114334-8868 ut010-010-0
westamp servo motor model h550-242000mb used
yaskawa servo motor uaaskb-1lya11 tmb210t2zzac3p60m use
moog servo motor g404-001 nib 13 month warranty new
moog servo motor g404-003 nib 13 month warranty new
indramat servo mtr mac063b-0-js-1-c-095-b-1-i0100-s001
delco fanuc a06b-0512-501 servo motor d050s1
moog brushless servo controller 164-007e-10-b2-2
new mitsubishi mr-j2-100a ac servo amplifier nib
pacific scientific r32genc-r2-ns-nv-00 servo motor
toshiba vt130g2u4055 inverter drive~rebuilt
parker servo amplifier bd-90 rebuilt 6 mo warranty bd90
sauer-sunstrand flow cont. valve kvfba7212 w/pilot new
sauer-sunstrand hydraulic valve mcv103e8206 w/pilot new
pacific scientific r32genc-r2-ns-nv-00 servo motor
rexroth dbete-52/350yg24k31m-1 valve r900972363 nos
baldor bsm80a-250aa servo motor nos 6 month warranty
vickers fast-1-m4-030-10-02-00 servo motor used
modicon s33f-a00-2010 servo motor used - w/warranty
toshiba vt130g1-4035bo inverter drive~rebuilt
vickers power supply eg-0041 rebuilt
rexroth torque motor for 4ws2em series valve~rebuilt~nr
porter peerless servo motor model 183-18-1165-0 used
victory controls/ olsen valve d-7r-8-60-240-s3 rebuilt
vickers servo amplifier card eea-pam-581-c-30 rebuilt
indramat control panel~btm03.1-ta-ba-ba-ta-ta-ba-2ea
new! bosch proportional valve w/13 mo warr
vickers proportional valve kbcg3160dzm12ape7h110 new!
kollmorgen servo motor ttb2-5306-425b used
sundstrand controller valve~mce100a1067~24vdc~new
rexroth dbete-61/315g24k31a1v valve r901029969 nos
yaskawa servo motor ugcmed-04aa2sf used
allen-bradley plc-4 w/controller 1773-l1a/1770-t12 used
tb wood's wfc4007-5c inverter drive~rebuilt
aeg modicon servo motor 120-166-005 used tested
fanuc servo motor a06b-0502-b756 used
mitsubishi ha-300 servo motor 26368537-ha300 used
pacific scientific servo motor r63gena-np-rw-vs-02 used
mts systems servo motor mpm1422-frmm-am +technogear
aeg servo motor model 120-167-005 used
aeg-modicon servo motor model 121-147-305 used
allen-bradley servo motor model 1326dpi32 used
bosch servo motor 104-91-3-816 0133518412 used
reliance servo motor model 104-91-3-816 used
new moog controller t161-504-a nib 13 mo warranty
new moog servo motor g405-002 nib 13 mo warranty
pacific-scientific servo motor vc3640-278-1-48c used
yaskawa servo motor usaged-13as2ke used
inland-kollmorgen servo motor tt-2950-1210-c used
indramat servo mtr mac132a-0-ed-1-b-b5-a-0-j625-s01 use
sperry-vickers servo motor 100mbw090b20 p/n 2960580-2
rexroth dbete-61/200g24k31a1v valve r901029968 nos
rexroth m-3sew6u36/420mg96n9k4 r900570744 valve new
sauer danfoss/sundstrand servo valve kvfba6216 new! nr!
rexroth 4wrap 6 w7-04-21/24k4/m proportional valve new
tokimec epa-6x3-d-10-s4 proportional valve controller
moog servo power supply 150-104a
moog power supply model x150-101b used, tested
toshiba vt130g2u4035 inverter drive~rebuilt
sanyo denki 45bm014hbc11 servo motor rebuilt ~warranty~
selec ag ds6 140 130 servo valve ds6140130 rebuilt
rexroth dbetr-10/315 prop valve w/pilot lfa25dbw2-62
electro-craft servo motor #1030-00-108 pn 200609 rev 5
new mavilor mo-300 servo motor 00300.120.0a06.j2 nib
baldor bsm80n-350ba servo motor rebuilt
parker ml3450b-10 servo motor rebuilt
yaskawa usasem-05yrw12 servo motor used, tested w/warr.
yaskawa usasem-05yrw11 servo motor used, tested w/warr.
pacific scientic servo motor r33genc-r2-ns-nv-00 w/warr
mitsubishi servo motor ha-fe13-ul used
yaskawa servo motor usafed-20-yr21 used
vickers amplifier card eea-pam-561-c-31 rebuilt w/warr.
kollmorgen akm23d-efcn2-00 servo motor factory new
aeg modicon servo motor model 120-166-005 used
pacific-scientific servo mtr srf3650-4823-84-5-56bc-cu
allen-bradley servo motor 1326ab-b2-11 used
new hcs dac-44-01-270 amp card hydraulic-control-system
elau servo mtr sm100-40-080-p1-44-s1-b0 +textron accudr
siemens servo motor 3-mot 1ph7131-2nf00-0cj0... used
yaskawa servo motor type ugtmed-10x used
yaskawa servo motor model ugcmem-15-ok31 used
indramat servo motor mcc14b-0-sd-3-c-130-b-0-s001 used
siemens servo motor 180 b35lb1 bs11-s07 used
reliance servo motor 1326ab-b720e-21k7 used
sanyo denki p50b07040dcs00 servo motor rebuilt warranty
oilgear servo valve vcs4-r03-005-n-210-v-130 rebuilt
toshiba vt130g2+4035 inverter drive~rebuilt
cei control enterprises inc/sli vs8640vbe31b rebuilt
vickers kadg4v 3 2c20n h m f pd7 h7 61 valve w/warranty
bosch 0831006003 proportional valve electronics rebuilt
parker amplifier card ez00595 rebuilt- 6 mo warranty
hagglunds denison servo valve d1p01 ~rebuilt
new rexroth vt5006 amplifier card vt-5006 nib warranty
parker servo valve model 234912 rebuilt
parker servo valve model 700350 rebuilt
bosch proportional valve 0811404116 new
vickers kbcg-3-40d-z-m1-2-a-pe7-h1-10 prop valve nos
vickers ehst-3-bve-11 prop pressure cont. valve rebuilt
oilgear l404563-821 servo amplifier module new
kollmorgen jr12m4ch servo motor refurbished w/warranty
oilgear p2c-0-s-26 pressure valve rebuilt 6 mo warranty
incom dc motor control vehrg100-22 ld-h lesson~warranty
fincor dc motor control 2200p regenerative +6m warranty
toshiba vt130g1-2055b0 inverter drive~rebuilt
new vickers eea-pam-525-c-32 amplifier card nib warr'ty
allen-bradley plc processor # 1747-l541 used nr!
vickers proportional valve kfdg4v32c13nzmu1h720~new!
compumotor m-series stepper motor drive m578311 rebuilt
parker amplifier card ew25-104d/4 rebuilt 6 mo warranty
gould servo motor 120-0014-001 used
yaskawa servo motor usafed08fa10x used
new yuken amd-l25-s-d24-3505 lvdt amplifier nos
vickers 687245 torque motor for servo valve sm4-20 new
vickers 891719 torque motor for servo valve sm4-30 new
vickers 684952 torque motor for servo valve sm4-40 new
vickers 684953 torque motor for servo valve sm4-40 new
yaskawa servo motor usafed-20b 22k used
indramat servo motor mkd025b-144-kp1-kn used
ge servo motor 183-18-0318-0 used
modicon servo motor s20-168-001 m443-ean0-0r0e used
elau servo motor model sm070-60-020-p1-44-s1-b1 used
elau servo motor model sm070-60-020-p1-44-s1-b0
ge calsthom servo motor rs620h r 1308 no 27.4517 used
reliance 1326ab-b410g-21 servo motor w/warranty
moog 304-235 servo motor used - warranty
new~moog torque motor for servo valve~g761-3004~nib
parker compumotor stepper motor drive m106-120 rebuilt
parker compumotor m-series stepper motor drive m83-93
oilgear scva-25-10-210-200 servo valve rebuilt
new! datalogic automatic id module~gould modicon~cm1000
cgi 23sp0050 5:1 gear head / applied 4023-828p stepper
pacific scientific s22gnna-rnnm-0 servo motor rebuilt
parker compumotor m10612011 stepper motor drive mseries
vickers servo amplifier card eea-pam-126-b-30 rebuilt
tb wood's xfc2003-0c inverter drive~rebuilt
electro-craft reliance e-3629-l-f00bn servo motor nos
dynamics research precision slide lh1b-0012-bn-r25
dynamic research precision slide lh6b-0014-cs-r10-as-bn
bosch 9810231431 proportional valve new
westamp servo drive a6511-10es-350 rebuilt w/warranty
new! rexroth servo amplifier card vt3014s38 w/6m warr.
fanuc power mate interface a02b-0118-b005 obsolete used
fanuc servo amplifier a06b-6058-h004 ac 0s/5s used nr!
rexroth proportion pressure relief valve aca-0581-0-c-1
emerson dxm-202 servo motor - w/6 month warranty
pmi 0088007001 servo amplifier~rebuilt
type: ssa-40-07-20
fanuc a06b-0533-b551 servo motor w/warranty
new hcs dac-44-01-270-xlt amp card nib h-c-s
danfoss 3002 variable speed drive~175h1729~rebuilt
pacific scientific servo motor s31g11a-r111-00 used
bosch amplifier card 0 811 405 030 rebuilt
moog controller model 155-002
actus servo motor type na20-10f-035 used
bosch amplifier card 0 811 405 097 -pv60- rebuilt
fanuc servo motor a06b-0126-b008 #7000 used
whedco servo motor mtr-35005602 used
moog 303-030a servo motor 11,000 rpm used - warranty
reliance servo motor model 1326ab-b410g-21-k4 used
rexroth amplifier card model vt-2000k43/2 rebuilt
new bosch proportional valve 9810-231-481 13 mo warr.
sanyo denki servo motor model 65bm040hbrsa
moog servo motor model g403-001 used
moog ac6717 slip ring turck encoder .2048
fanuc servo motor a06b-0501-b001 used
fanuc spindle motor a06b-1002-b100 used
siemens servo motor 1ft5076-0ac01-0-z used
fanuc servo motor a06b-0512-b051 used
allen bradley servo motor 1326ab-b2e-11 used
mitsubishi ha-200 servo motor 2638537-ha200 used
asea servo motor mc23s-r0527-12-84 used
gould servo motor m33y-snoy-y004-1b used
gould servo motor m33y-ymry-y00y-1t used
gettys servo motor m33y-snry-y004-1b used
sanyo denki 27bm140sbtv0 servo motor
whedco servo motor 35004961 used
fanuc servo motor model 2-0 type a06b-0521-b001 used
mts systems corp. servo motor mpm1142frme-amb used
allen-bradley servomtr 1326ab-a2e-11 + bayside gearbox
bayside gearbox ra115-020 used
kollmorgen servo motor model 00-01207-002 type 012m4t
fanuc servo motor model a06b-0533 no. s90609 used
moog servo motor model g413-200 used
elau servo motor model sm100-50-030-p1-44-s1-b0 used
okuma servo motor model bl-mc50j-30t used
nachi-fujikoshi servo motor mfa450fscbs used
new! dowty torque motor nib! ~ w/6 month warranty
moog torque motor for 62 series valve~rebuilt~nr!
new! omron servo motor r88m-m20020-b w/6 month warranty
heidenhain control # ~ 6 month warranty~used
new mitsubishi mr-j20ma-ul servo amplifier nib
wtc valve controller, model #wt01-t31a used ~nr!~
vickers servo amplifier card eea-pam-571-a-14 rebuilt
vickers amplifier card eea-pam-119-a-10 new 6 mo warr
vickers amplifier card eea-pam-126-a-30 rebuilt
bosch amplifier card 0 811 405 014 rebuilt
vickers kfdg4v32c20nzmu1h720 proportional valve nos
vickers eea-pam-513-a-32 servo amp card nib 6 mo warr
vickers amp card eea-pam-525-a-30 rebuilt w/warranty
vickers servo amplifier card eea-pam-535-a-22 rebuilt
new yuken ame-d2-h1-100-12 power amplifier nos
oilgear l404563-506 servo amp card new
yaskawa sgme-02af12 servo motor rebuilt
parker vrd350 servo amplifier card~rebuilt~6m warranty
cincinnati milacron servo drive #37200077a #12300534
兴城市金誉自动化设备商行