品牌:Rockwell/罗克韦尔 | 型号:1756-M12 | 加工定制:是 |
工作电压:220V | 输出频率:220kHz | 产品认证:*** |
1756-M12
产品精品尊 格百年一遇
1756-M12
厦门市仲鑫达自动化设备有限公司
销售专员;陈国如
电话;18030132586 QQ;1151195663
厦门市思明区湖滨东路湖光大厦8楼A座
1756-M12
旁路柜的逻辑控制要求比较复杂,采用PLC控制,接线简单,提高了可靠性;旁路柜的逻辑更改也变得很简单,只需修改PLC梯形图程序可以了,很方便满足用户现场的控制要求。
(3)PLC功能指令实现高压变频器PID闭环控制
用户现场对变频器闭环控制提出的要求是:变频器能够根据用户系统用水量的变化,自动调整变频泵的转速,实现管网恒压供水;同时还可以在液晶屏上设定压力目标值。 程序模拟调试的基本思想是,以方便的形式模拟产生现场实际状态,为程序的运行创造必要的环境条件。根据产生现场信号的方式不同,模拟调试有硬件模拟法和软件模拟法两种形式。
1)硬件模拟法是使用一些硬件设备(如用另一台PLC或一些输入器件等)模拟产生现场的信号,并将这些信号以硬接线的方式连到PLC系统的输入端,其时效性较强。
2)软件模拟法是在PLC中另外编写一套模拟程序,模拟提供现场信号,其简单易行,但时效性不易***。模拟调试过程中,可采用分段调试的方法,并利用编程器的监控功能。用户要求高压变频器在出现故障停机时能快速自动切换到工频旁路运行,笔者给高压变频器专门配置了可以实现自动旁路功能的旁路柜,如图1所示,K1~K4为手动操作刀闸,J1~J3为高压真空接触器。在变频器发生故障时,旁路柜可以在几秒内完成从变频到工频的转换;而变频器在工频运行时,通过1个按钮可以实现变频器从工频到变频的转换。这样的控制要求增加了变频器整机控制逻辑的复杂性。
Advanced Energy 012PSVCO
Advanced Energy 0190-15167
Advanced Energy 0190-16177
Advanced Energy 155031-004A
Advanced Energy 2011-014-01
Advanced Energy 2105-001
Advanced Energy 2189
Advanced Energy 27-265661-00 C457849
Advanced Energy 3150010-001 LF-10
Advanced Energy 3150017-012D
Advanced Energy 3150274-008
Advanced Energy 3150275-007G
Advanced Energy 3152291-000C
Advanced Energy 3155011-000
Advanced Energy 3155012-000-K
Advanced Energy 3155027-000
Advanced Energy 3155027-000S
Advanced Energy 3155031-004C AZX90
Advanced Energy 3155031-014D
Advanced Energy 3155031-0371756-M12
Advanced Energy 3155031-037 1110-00056
Advanced Energy 3155031-037A
Advanced Energy 3155038-000
Advanced Energy 3155047-000D
Advanced Energy 3155077-001A
Advanced Energy 3155126-008
Advanced Energy 3155126-008A
Advanced Energy 3155126-017A
Advanced Energy 3155132-001D
Advanced Energy 3155168-001
Advanced Energy 3156011-000B
Advanced Energy 3156016-001
Advanced Energy 3156024 PDX 900-2V
Advanced Energy 3156024-032A PDX 900-2V
Advanced Energy 3156024-105C
Advanced Energy 3156024-131A
Advanced Energy 3156024-131A PDX 1250
Advanced Energy 3156035-100A
Advanced Energy 3156111-001 LAM APEX 1513
Advanced Energy 3157504-012C PE-2500
Advanced Energy 5002-012/5021-001
Advanced Energy 5038-000-D 厦门仲鑫达自动化设备有限公司
Advanced Energy 7621993020
Advanced Energy A3D2A000BA140A041A
Advanced Energy A3H2C200BA120G001A
Advanced Energy A64697 LDM
Advanced Energy APEX 3013 3156113
Advanced Energy ATN 1000
Advanced Energy ATN 500
Advanced Energy PDP 3500
Advanced Energy PDW 600
Advanced Energy PDW 2200
Advanced Energy PDX 1250
Advanced Energy PDX 2500
Advanced Energy PDX 5001756-M12
Advanced Energy PDX 5000 3156043-207A
Advanced Energy PDX 900-2V 3156024-031B
Advanced Energy PE 1000
Advanced Energy PE 5000
Advanced Energy RF10M RF20M 5708513
Advanced Energy RF20H 7004-0020-4
Advanced Energy RF20S
Advanced Energy RF-5S S1230-10434
Advanced Energy RFG 1251 3155107-001B