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EL 3000A

Electronic DC Load

直流电子负载

400W

操作说明书

Instruction Manual

EL 3160-60A: 35 320 200
EL 3400-25A: 35 320 201

Doc ID: EL3CN
Revision: 14
Date: 05/2017

Содержание 35 320 200

Страница 1: ...EL 3000A Electronic DC Load 直流电子负载 400W 操作说明书 Instruction Manual EL 3160 60A 35 320 200 EL 3400 25A 35 320 201 Doc ID EL3CN Revision 14 Date 05 2017 ...

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Страница 3: ...ro Automatik 严禁再版复印或部分错误地使用本说明书否则将承担本行为导致的法律后果概述安全须知请仅在铭板标示电压下操作本仪器请勿将任何机械零件特别是金属件插入仪器内否则将有触电危险或损坏仪器请避免在仪器周围使用任何液体物质因有可能进入仪器内部并损坏它请勿将高于负载额定电压的电压源连接到负载上比如 80V型号的负载不能连接高于100V的电压源 160V 型号不能连接高于180V的电压源 400V的产品不能连接460V电压源从后板插槽上安装接口卡时请遵循一般防静电规则接口卡只能在仪器完全关闭电源开关关闭后插入和取出当连接其它电压源或电池或者使用模拟接口时总是先查看应用设备的各项限定值和标称值 DC输入端无保险丝熔断保护内置模拟接口的AGND与DGND引脚从内部与DC输入负极 DC 连在一起因此不可将这些引脚接地因为它会...

Страница 4: ... 9 5 3 直流输入端 9 5 4 AUX端子远程感测 9 5 5 接口卡插槽 9 6 操作 10 6 1 显示 10 6 2 操作元件 11 6 3 打开电源 11 6 4 打开input on off开关 12 6 5 调节设定值 12 6 6 预选调整模式 12 6 7 Level A和Level B的使用 13 6 7 1 Level A 13 6 7 2 Level B 13 6 7 3 Level A B 脉动操作 13 6 7 4 升降时间 14 6 8 电池测试模式 14 6 9 报警管理器 15 6 10 终端控制区域和优先顺序 15 6 11 串联和并联连接 15 7 产品配置 16 7 1 设置菜单 16 8 模拟接口 17 8 1 模拟接口的正确使用 17 8 2 配置举例 17 8 3 应用举例 18 8 4 模拟接口各引脚分布说明 19 9 接口卡 20 ...

Страница 5: ...一样的专业工业网的连接本仪器几乎可涵盖单一系统的所有特征在不使用任何其它硬件的条件下用户借USB能即刻连到电脑上并控制多达4台或更多产品利用CAN卡无需重新配置整个总线系统就可将产品应用到现有CAN 总线中可在EL3000A产品上选择恰当的地址范围和传输速度以适合特定的应用需求主要功能一览在0 100 范围设置 U I P 和 R 以容量和时间计数进行电池测试可拔插式接口卡 CAN USB RS232 IEEE GPIB Ethernet LAN 外控用模拟接口两组设定值间的脉动操作且带可调脉宽 50µs 100s 之间可调和可调升降时间 30µs 200ms之间可调产品型号有 160V 60A 或400V 25A 400W功率与CAN系统兼容的Vector软件 2 技术规格 2 1 控制面板型号显示器 80个字符两行显示的LCD 运行...

Страница 6: ...可调值 50us 100s 2个可调值 50us 100s 上升下降时间可调 30us 200ms 可调 30us 200ms 精确度 10 10 触发输入作外部水平转换时可用作外部水平转换时可用电池测试功能模式电流功率电阻电流功率电阻电池保护放电电压极限可调放电电压极限可调显示时间和消耗的电池容量时间和消耗的电池容量显示 2 x 40个字节带光照 2 x 40个字节带光照模拟接口设定值输入脚 0 10V对应U I P R 0 100 0 10V对应U I P R 0 100 监控输入脚 0 10V对应U I 0 100 0 10V对应U I 0 100 控制信号脚内部外部输入开关 R 模式 10 400Ω 内部外部输入开关 R 模式 40 800Ω 错误信号脚过压过温过压过温输出脚参考电压参考电压制冷类型温控...

Страница 7: ...7 EL 3000 A 系列产品说明书 CN 日期 05 30 2017 关于产品 3 外观 3 1 前视图 AUX端子的引脚分布说明 S 正感测输入端 S 负感测输入端 Gnd 触发输出接地端 Tr 触发输出端由LevelA B操作模式下的设定形成的方波从该引脚输出代表决定内部触发信号的脉宽 3 2 后视图图 1 图 2 ...

Страница 8: ... 才能获得最大电流 E A Diagramm Thema Projektleiter Bearbeiter Projekt EA Elektro Automatik Art Nr Datei H dos technik Projekte EL3000 9000A Messungen Tests messung ue zu ie an el3000 vsd CAD Sys MS Visio Meßwerte EL3160 60 Strom Spannung 60A 1 35V 45A 0 97V 30A 0 63V 15A 0 32V Meßwerte EL3400 2 Strom Spa 25A 0 95 20A 0 74 10A 0 36 5A 0 18 Widerstandsregelung Verhältnis Ue Ie 60A Last Widerstandsreg Iin A ...

Страница 9: ...一额外的保险丝负载线的直径随输入电流而定我们建议这样使用针对25A以下产品 2 x 1mm 或至少 1 x 4mm 针对60A以下产品 2 x 6mm 或至少 1 x 16mm 针对每根线弹性线注意允许流经安全插头的最大电流为32A 5 4 直流输出端的接地输入和极未接地若有需要可将其中一极接地注意将其中一输入极接地时请随时检查馈源如电源输出端的其中一极是否也已接地否则将引起短路 5 5 AUX端子远程感测远程感测线连到Aux端子上为补偿馈源与负载器间负载线每根线最大1 1V 的压降负载器可通过Aux端子的远程感测输入极测量馈源的电压然后进行相应的调整该端子经和引脚还会引出一触发信号更多详情可参考 6 7 3 Level A B 脉动操作章节关于触发信号的描述按正确极性连接到产品后面Aux端子引脚1 感测端和引脚4 感测端 ...

Страница 10: ...图 5 图 6 图 4 关于产品报警管理器 Overvoltage Overtemperature或Power fail信号指示出有错误出现如果市电输入电压太低会出现power fail 断电报警如果直流输入过压极限被超越见 2 2 各产品型号详细规格会出现overvoltage 过压报警这两种错误都会关闭负载输入直到错误排除后方可重新启动 overtemperature报警表示产品内部过热会暂时关闭直流输入知道功率模块再次冷却后方打开报警指示一直显示于屏幕上直至被确认方消失此目的在于告知用户报警仍然存在或已消失举例图 7 被激活的报警信息总是优先于消失的报警信息如果两个报警都出现那么过压要优先于断电而出现在显示屏上只有出现 gone 状态的报警才能确认可使用 Input on off 按钮或经数字接口卡读取内部缓冲区的报警信息来...

Страница 11: ...再次以反方向旋钮时才改变 6 3 打开电源本负载由主电源开关打开负载打开后产品型号和固件版本显示于屏幕上内部系统被启动并执行一些测试如设置默认设定值或恢复最后的设定值这取决于Keep set values 的设置负载的直流输入在第一次启动后始终是关闭的操作产品 6 2 操作元件主电源开关Power 1 用于打开或关闭负载器选择器Mode 2 用于预选产品即将将运行的调整模式不同的调整模式会相互影响一旦实际值达到设定值调整模式就会改变这会导致即使之前已设置恒流控制 CC 为运行模式而恒功率控制 CP 模式却能占主导地位当前运行的调整模式显示在显示屏上更多关于各调整模式的内容请见章节 6 6 预选调整模式有下列可选模式 CC 恒流调整 CV 恒压调整 CP 恒功率调整 CR10R 在1 范围内恒阻抗调整 CR400R 在2 范围内恒阻抗调整 ...

Страница 12: ...输入电流被调整并限定为调节值限流只要馈源能输出电流功率设定值另外限定消耗功率并影响最大电流功率限制优先于电流限制如果Keep set values参数被设为no 手动转换至CC调整模式可将功率设定值恢复至其标称值电流设定值为 0 如果是yes 保留调整最小的设定值详情见 7 1 设置菜单 CV 是指恒压此时可调节电压电流和功率设定值在此模式下接载太多馈源会引起输出电压爆跌输入电压会被调整并限定为调节值如果馈源能输出大于负载能吸收的电流则不能达到电压极限如果Keep set values参数被设为no 转到CV模式后可将电压电流和功率设定值重设为标称值如果是 yes 保留调整最小的设定值详情见 7 1 设置菜单注意 CV调整不能与电池测试模式一起使用如果选了电池测试显示屏会出现错误信息注意给CV调整模式配置的设定电压在其它任...

Страница 13: ...制和监视转换至遥控模式后当前选择的Level Control设置被替代用指令可进行更改除GPIB接口卡IF G1外 6 7 2 Level B 用Level Control 3 选择器转换到 Level B 后 Level B 的设定值被激活这个模式与Level A下的操作一样 Level B模式下负载可通过接口转换至电脑遥控以便像手动操作一样控制和监视转换至遥控模式后当前选择的Level Control设置被替代用指令可进行更改除GPIB接口卡IF G1外 6 7 3 Level A B 脉动操作这个模式将A和B的两组设定值组合在一起而且A和B各自的可调脉宽都不同电子负载通过这些数值自动生成A 和B间的设定值阶跃且其上升下降时间可调脉动操作只适合应用属于被选模式的设定值意思是在CV模式下只有电压会受影响而其它设定值保持不变详情请参考...

Страница 14: ...降时间在200ms时间段产生一个三角形有些可能就需要这个应用因此不能被负载限制或影响 6 8 电池测试模式介绍 Battery 模式指对电池进行测试将电池连到负载上对电池定义性地放电测量平均电流计算累计时间然后将消耗容量以AH显示出来电压监控和可调欠压一起关闭Ulow极限防止电池过放这个极限需调整至少一次如果测试过程中超过极限负载输入自动关闭计时器终止电池不再输出电流如果极限大于电池电压测试则不能开始选择调整模式可在任何时候更改调整模式即使正在运行测试也可以该操作可重设整个测试包括计时器和Ah值使用测试之前和测试过程中都可进行调整模式设定值的调节欠压会关闭Ulow极限用Selection 5 选定设定值用 Setting 6 调节显示器以小时分秒 HH MM SS 的格式显示累计时间以Ah为单位显示消耗容量计算Ah...

Страница 15: ...问负载器而设置了优先顺序适用如下模拟接口具有最高优先权数字接口第二手动控制最低意思是如果产品被设为遥控则不可用开关和旋钮设置模式和设定值如果在遥控运行同时转换到外控遥控状态将被重设负载只能通过模拟输入控制为了将此报告给电脑上运行的软件尝试访问和控制负载器控制区域内部设为 local 在 local 状态下负载器能通过电脑读取即监控 6 10 串联和并联连接多台负载可以并联但也不是完全支持意思是并联时电流不会自动分配故用户需注意正确控制产品并联操作时通过控制板或接口卡数字或模拟对并联中所有产品的U I P和R调节成相同数值从而达到平均分配的效果注意本系列产品不可串联否则产品会受损 ...

Страница 16: ...able ID 见接口卡说明书上的计算公式给每台机创建2个ID 选择Vector系统产品会分配3个CAN 从操作设置基本ID 如下开始在整个ID范围 11位元 0 2047 内可调节四个阶段另外一个ID作为广播ID 它区别于其它三个基本ID 提示根据normal或Vector设定后面的参数也会变换 CAN Relocatable ID 可能性设置 0 31 默认设置 0 属于 CAN接口卡IF C1 解释本设置决定产品CAN ID所处的可再定位地址段要了解更多信息请参考基本的CAN技术规格举例电子负载由于某些原因指定为地址5 这可能与另一有相同地址的总线相抵触您可以将这个地址通过定义RID 可再定位ID的缩写移到另一地址段这样就不会有抵触了因此使用CAN时理论上有32 x 30个可能的产品节点每个为两各ID CAN Base ID 自5...

Страница 17: ...围 13引脚 R Range 用于在两组范围间转换 Pin 13 Low 使用阻值范围2 Pin 13 High 使用阻值范围1 默认 Rem SB输入端远程待机引脚8 优先于Input on off 4 按钮意思是您可使用本引脚在任何时间关闭负载器即使没有通过模拟接口将负载器设置为外部控制只要本引脚固定于0V 负载器输入永久为关闭状态也无法用Input on off 4 按钮或接口卡的远程控制打开远程控制图 15 VREF输出端用于生成VSEL CSEL PSEL和RSEL设定值举例如果只需要CC调整模式 VSEL设定输入必须固定为0V 通过0 10V外部源或可调电位器 GND 和VREF 滑动开关至CSEL 给PSEL VREF和CSEL 供电见下表 Level A B模式下可调升降时间和脉宽此时失效如果期望得到某种形式的振幅时间进度通过...

Страница 18: ... 控制激活的话设定值也可100 地连到引脚 DGND REM SB DGND REMOTE 图 19 外控电流和功率图20的例子显示对应VREF 10V 和AGND的功率和电流设定值的可调电位器通过这些电位器您可在0 至100 之间任意调节 VREF AGND CSEL 10k DGND PSEL 图 20 8 3 应用举例各引脚概况 Rem SB Remote DGnd AGnd RSEL PSEL CSEL VSEL VRef R active R Range Trigger In VMON CMON OVP OT 图 16 模拟主辅机操作真正的主辅机操作是不可能实现的因为模拟接口不提供设定值输出但是在有些情况下主机的监控输出CMON甚至VMON都可用来控制一台或多台辅助负载器的四组设定值输入中的一组 AGnd CMON DGnd PSEL Master Sla...

Страница 19: ...值为0 1 10 CMON AO 实际电流值 0 10V 对应0 100 的I Nom 对AGND断路时有保护功能 AO 当 I max 5mA时精确度典型值为0 1 对AGND断路时有保护功能 DI 选择 R on R off 1 R 调整关 LOW ULow 1V U范围 0 30V R 调整开 HIGH UHigh 4V 或断开 I max 1mA 5V时 DI 选择阻值范围4 Rmax 阻值范围 2 LOW ULow 1V U Low to High typ 3V Rmax 阻值范围 1 HIGH UHigh 4V 或断开发送器集电极对DGND DI 触发输入3 触发器 A B LOW ULow 1V 触发器 B A HIGH UHigh 4V 或断开 DO 过温过压 OT 或 OVP HIGH UHigh 4V 准开集上拉至 15V 无 OT 或 OVP LOW UL...

Страница 20: ...改为标称值 LabView 我们提供现成的LabView VIs接口卡软件它不支持电子负载的所有功能但在不断开发和增强其功能在其它环境下的编程数字通讯接口在除LabView外的其它IDEs也能普遍应用这个通讯协议不遵从任何标准只代表通讯的最低级别在此等别下错误设置和错误设定值的安全级别较低有可能导致产品的误动作请严格按照准则强制性地执行关于通讯协议的详细信息可参考接口卡用户指导说明应用举例下列这些图片显示通过电脑控制一台或多台负载器的多种应用的几种这同样应用于与电源混合配置图23的设置也可限制性地用于RS232和IF R1接口卡 10 附件 10 1 其它附件和选项功能注意关于选项功能和附件详情请见各个产品操作说明书可供下列附件 a USB 至模拟接口UTA12 经USB 电脑面和产品内置模拟接口远程控制 b 数字接口卡还配USB RS232...

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Страница 23: ...ce card may only be plugged and unplugged while the unit is completely switched off mains switch OFF Always observe limit and nominal values of the device when connecting a voltage source or battery as well as when using the analogue interface The DC input is not fused Pins AGND and DGND of the built in analog interface connector are internally wired to the negative DC input DC Thus it is not poss...

Страница 24: ...erminal AUX remote sense 29 5 5 Interface card slot 29 6 Handling 30 6 1 The display 30 6 2 Operating elements 31 6 3 Switching power on 32 6 4 Switching the DC input on off 32 6 5 Adjusting the set values 32 6 6 Preselecting the regulation mode 32 6 7 Usage of Level A and Level B 33 6 7 1 Level A 33 6 7 2 Level B 34 6 7 3 Level A B pulsed operation 34 6 7 4 Rise fall time 35 6 8 The battery test ...

Страница 25: ... plug and use up to four or more devices to a standard PC without the need of additional hardware With CAN you can implement the devices into existing CAN bus systems without the need to reconfigure the whole bus Address range and transmis sions speed can be selected for the particular EL3000A unit to meet the given requirements The main functions at a glance Set U I P and R each 0 100 Battery tes...

Страница 26: ...ature Modes Current Power Resistance Current Power Resistance Battery protection Discharge threshold voltage adjustable Discharge threshold voltage adjustable Display Time and comsumed battery capacity Time and comsumed battery capacity Display 2 x 40 characters illuminated 2 x 40 characters illuminated Analogue interface Set value inputs 0 10V for U I P R 0 100 0 10V for U I P R 0 100 Monitor out...

Страница 27: ... view 3 2 Rear view Figure 2 Figure 1 Pin assignment of AUX terminal S positive Sense input S negative Sense input Gnd Ground of trigger output Tr Trigger output Leads out the pulse width determined internal trigger signal as a square wave which results from the settings in Level A B operation ...

Страница 28: ...tal interface by a command An internal error buffer stores up to three different alarms and is purged when read 4 6 Dynamic characteristics and stability criteria The electronic load is characterised by short rise and fall times of the current which are achieved by a high bandwidth of the internal regulation circuit In case of testing sources with own regulation circuits at the load like for examp...

Страница 29: ...input The inputs und are not grounded so that one of them may be grounded if necessary Attention When grounding one of the input poles always check if one of the output poles of the source eg power supply is also grounded This could result in a short circuit 5 5 Terminal AUX remote sense The remote sense feature is wired at terminal AUX In order to compensate voltage drops over the load cables max...

Страница 30: ...s switch the load input off After removal of the cause it can be put online again An overtemperature alarm occurs on internal overheating of the device and will temporarily switch off the DC input until the power stage has cooled down again Alarm indications remain in the display until acknowl edged The purpose is to inform the user that an alarm is either active or already gone Example Figure 7 A...

Страница 31: ...f or at mains undervoltage power fail and are restored after switching it on again if the setting Keep set values yes has been chosen Explanation of the selector positions A Switches to the set values of Level A These values become instantly active and can be changed now B Switches to the set values of Level B These values become instantly active and can be changed now A B Switches the load offlin...

Страница 32: ...re not shown and can not be selected changed Set values can be selected and adjusted as long as the display does not show the status texts External mode or Remote mode a Selecting the set value to adjust In the operation modes A B A B and Battery the set value to change is selected by rotating Selection 5 In the setup menu position Setup it is used to select a different setup parameter Also see 7 ...

Страница 33: ...adjusted resistance can also not be achieved A changeover to regulation mode CR can reset the set values of resistance current and power to their nominal values if the parameter Keep set values has been set to no in the setup If set to yes the least adjusted set values are kept Also see 7 1 The setup menu 6 7 Usage of Level A and Level B Introduction The names Level A and Level B stand for two dif...

Страница 34: ... B realised with the trigger input analogue interface is only available in Level A B mode The trigger input has to be activated in the setup menu with the option Trigger mode see 7 Device configuration The default setting is internal By setting it to external the switchover between A and B can only be done via the trigger input Handling the device The adjusted rise fall time is still effective her...

Страница 35: ...e elapsed time is counted and then display as the consumed battery capacity inAh The voltage supervision together with the adjustable undervoltage shutdown threshold Ulow prevents the bat tery from being deeply discharged This threshold needs to be adjusted at least once If it is exceeded during the test the load input is automatically switched off and the time counter is halted No more current is...

Страница 36: ...sting the same set values for U I P and R at any device via the control panel or the interfaces digital or analogue Attention Series connection is not allowed The devices could be damaged Handling the device Figure 13 Battery test operation in current control CC mode 7 Device configuration 7 1 The setup menu The setup menu can only be activated by the selector Level 3 except during remote control ...

Страница 37: ...ve the address to another segment by defining the RID short for relocatable ID so that no collision can occur Hence there are theoretically 32 x 30 possible device nodes with two IDs each available when using CAN CAN Base ID available since firmware 5 01 Possible settings 0x000 0000 0x7FC 2044 Default setting 0x000 0000 Belongs to CAN interface card IF C1 Explanation this adjusts the base ID for t...

Страница 38: ...erface Pin 13 R Range is used to switch between the two ranges Pin 13 Low Resistance range 2 is used Pin 13 High Resistance range 1 is used default Remote control The input Rem SB Remote Standby Pin 8 overrides the pushbutton Input on off 4 That means that you can switch the load input off with this pin at any time even if the load was not set to external control via the analogue interface and as ...

Страница 39: ...n of external control by pin Remote It can be combined with other applications and can be realised by various contacts like transistors relays switches etc Opening the contact again will either switch the output on if it was on before switching off remote control or enable switching it on again manually on the front panel DGND REM SB REMOTE Figure 18 Switching to external control Switching to exte...

Страница 40: ...stwert Strom 0 10V correspond to 0 100 of I Nom Short circuit proof against AGND AO Accuracy typically 0 1 at I Max 5mA Short circuit proof against AGND DI Selection R on R off 1 R regulation off LOW U Low 1V U range 0 30V R regulation on HIGH U High 4V or open I Max 1mA at 5V DI Select resistance range 4 RMax resistance range 2 LOW U Low 1V U Low to High typ 3V RMax resistance range 1 HIGH U High...

Страница 41: ...e of the interface cards and the supplied LabView VIs follows the operating conditions and nominal values of the device Set values are checked for plausibility and are corrected if necessary or forced to nominal values LabView We provide ready to use LabView VIs for the interface cards These do not support all of the features of the electronic load but are constantly under development and enhancem...

Страница 42: ...face cards Galvanically isolated pluggable and retrofittable digital interface cards for USB RS232 CAN GPIB IEEE SCPI only or Ethernet LAN SCPI are available 10 2 Firmware updates If a firmware update becomes necessary it can be done by the user Upon request we supply a new firmware version and an update tool for Windows which will per form the update In order to do an update either a card of type...

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Страница 44: ...EA Elektro Automatik GmbH Co KG 研发生产销售一体化 Helmholtzstraße 31 33 41747 Viersen Germany Tel 49 2162 37 85 0 Fax 49 2162 16 230 ea1974 elektroautomatik cn www elektroautomatik cn ...

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