产品中心
6SL3353-3AG41-4BA0
减小给定使电机减速运行时,电机进入再生发电制动状态,电机回馈给变频器的能量亦较高,这些能量贮存在滤波电容器中,使电容上的电压升高,并很快达到直流过电压保护的整定值而使变频器跳闸。处理方法为:采取在变频器外部增设制动电阻的措施,用该电阻将电机回馈到直流侧的再生电能消耗掉。变频器带多个小电机,当其中一个小电机发生过流故障时,变频器就会过流故障报警,导致变频器掉闸,从而导致其它正常的小电机也停止工作。处理方法为:在变频器输出侧加装1:1的隔离变压器,当其中一台或几小电机发生过流故障,故障电流直流冲击变压器,而不是冲击变频器,从而预防了变频器的掉闸。经实验后,工作良好,再没发生以前的正常电机也停机的故障。
标记输入与输出方便检修
PLC控制着一个复杂系统,所能看到的是上下两排错开的输入输出继电器接线端子、对应的指示灯及PLC编号,就像一块有数十只脚的集成电路。任何一个人如果不看原理图来检修故障设备,会束手无策,查找故障的速度会特别慢。鉴于这种情况,我们根据电气原理图绘制一张表格,贴在设备的控制台或控制柜上,标明每个PLC输入输出端子编号与之相对应的电器符号,中文名称,即类似集成电路各管脚的功能说明。有了这张输入输出表格,对于了解操作过程或熟悉本设备梯形图的电工就可以展开检修了。但对于那些对操作过程不熟悉,不会看梯形图的电工来说,就需要再绘制一张表格:PLC输入输出逻辑功能表。该表实际说明了大部分操作过程中输入回路(触发元件、关联元件)和输出回路(执行元件)的逻辑对应关系。实践证明如果你能熟练利用输入输出对应表及输入输出逻辑功能表,检修电气故障,不带图纸,也能轻松自如。
6ES7378-2AB00-0AC0 EXM378-2 EXM378-2 Expansion Module Siemens Simatic S7 2
6ES7380-7BA00-0AA0 Two Pole Jumper Siemens Simatic S7 1
6ES7388-4BN00-0AC0 CPU 388-4 CPU 388-4 M7-300 Central Processing Unit Siemens Simatic S7 2
6ES7388-4BN00-0AC1 CPU 388-4/DOS CPU 388-4 M7-300/DOS Central Processing Unit Siemens Simatic S7 Ask
6ES7390-0AA00-0AA0 7202001-01, PC-GF20 S7-300 Bus Connector (PC-GF20) Siemens Simatic S7 90
6ES7390-1AB60-0AA0 S7-300 Mounting Rail - 160 MM Siemens Simatic S7 2
6ES7390-1AE80-0AA0 Simatic S7 Rail attachment piece Siemens Simatic S7 Ask
6ES7390-1AF30-0AA0 Simatic S7 Rail attachment piece Siemens Simatic S7 1
6ES7390-1AJ30-0AA0 S7-300 Mounting Rail - 830MM Siemens Simatic S7 1
6ES7390-7BA00-0AA0 S7-300 Module Power Jumper Siemens Simatic S7 6
6ES7392-1AJ00-0AA0 9223BC500AB0 Front Connector 20-pin Siemens Simatic S7 125
6ES7392-1AM00-0AA0 9223BF000AC0 Connector, Front Screw, 40 pin Siemens Simatic S7 21
6ES7392-1BJ00-0AA0 Front Connector - Spring Siemens Simatic S7 11
6ES7392-1BM00-0AA0 Connector, Front Screw, 40 pin Siemens Simatic S7 2
6ES7392-1BM01-0AA0 Front Connector Siemens Simatic S7 12
6ES7400-1JA00-0AA0 S7-400 Rack Siemens Simatic S7 1
6ES7400-1JA01-0AA0 S7-400 Rack Siemens Simatic S7 5
6ES7400-1TA00-0AA0 S7-400 Rack with 18 slots Siemens Simatic S7 Ask
6ES7400-1TA01-0AA0 S7-400 Rack UR1 Siemens Simatic S7 2
6ES7401-2TA00-0AA0 S7-400 CR2 Rack Siemens Simatic S7 1
6ES7405-0DA00-0AA0 PS405 Simatic S7-400 Power Supply Siemens Simatic S7 Ask
6ES7405-0DA01-0AA0 PS405 PS405 Power Supply Siemens Simatic S7 Ask
6ES7405-0KA00-0AA0 PS405 PS405 Power Supply - 10 A Siemens Simatic S7 1
6ES7405-0KA01-0AA0 PS405 PS405 Power Supply - 10 A Siemens Simatic S7 1
6ES7405-0KA02-0AA0 PS405 PS405 Power Supply - 10 A Siemens Simatic S7 Ask
6ES7405-0RA00-0AA0 PS405 PS405 Power Supply Siemens Simatic S7 2
6ES7405-0RA01-0AA0 PS405 PS405 Power Supply Siemens Simatic S7 Ask
6ES7405-0RA02-0AA0 PS405 PS405 Power Supply Siemens Simatic S7 Ask
6ES7407-0DA00-0AA0 PS407 PS407 Power Supply - 4A Siemens Simatic S7 1
6ES7407-0DA01-0AA0 PS407 PS407 Power Supply Siemens Simatic S7 Ask
6ES7407-0KA00-0AA0 PS407 PS 407 Power Supply Siemens Simatic S7 2
6ES7407-0KA01-0AA0 PS407 PS 407 Power Supply Siemens Simatic S7 5
6ES7407-0KA02-0AA0 PS407 PS 407 Power Supply Siemens Simatic S7 Ask
6ES7407-0RA00-0AA0 PS407 PS407 Power Supply Siemens Simatic S7 Ask
6ES7407-0RA01-0AA0 PS407 PS407 Power Supply Siemens Simatic S7 Ask
6ES7407-0RA02-0AA0 PS407 PS407 Power Supply Siemens Simatic S7 Ask
6ES7408-1TA01-0XA0 Fan Assembly Unit Siemens Simatic S7 1
6ES7412-1XF00-0AB0 CPU 412-1 CPU 412-1 Central Processor Unit Siemens Simatic S7 Ask
6ES7412-1XF02-0AB0 CPU 412-1 CPU412-1 Processor Module Siemens Simatic S7 Ask
6ES7412-1XF03-0AB0 CPU412-1 Siemens S7-400 CPU412-1 Siemens Simatic S7 1
6ES7412-2XG00-0AB0 CPU412-2 CPU412-2 Processor Module Siemens Simatic S7 6
6ES7412-2XG04-0AB0 CPU 412-2 CPU 412-2 Processor Module Siemens Simatic S7 Ask
6ES7413-1XG01-0AB0 CPU 413-1 CPU 413-1 Processor Module Siemens Simatic S7 1
6ES7413-1XG02-0AB0 CPU 413-1 CPU 413-1 Processor Module Siemens Simatic S7 6
6ES7413-2XG01-0AB0 CPU 413-2DP CPU 413-2DP Processor Module Siemens Simatic S7 3
6ES7413-2XG02-0AB0 CPU 413-2DP CPU 413-2DP Processor Module Siemens Simatic S7 5
6ES7414-1XG01-0AB0 CPU 414-1 CPU 414-1 Processor Module Siemens Simatic S7 2
6ES7414-1XG02-0AB0 CPU 414-1 CPU 414-1 Processor Module Siemens Simatic S7 5
6ES7414-2XG00-0AB0 CPU414-2 CPU414-2 Processor Module Siemens Simatic S7 2
6ES7414-2XG01-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 3
6ES7414-2XG02-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 1
6ES7414-2XG03-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 8
6ES7414-2XG04-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 1
6ES7414-2XJ00-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 1
6ES7414-2XJ01-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 5
6ES7414-2XK05-0AB0 CPU 414-2 CPU 414-2 Processor Module Siemens Simatic S7 Ask
6ES7414-3XJ00-0AB0 CPU 414-3 CPU 414-3 Processor Module Siemens Simatic S7 6
6ES7414-4HJ04-0AB0 CPU 414-4H CPU 414-4H Processor Module Siemens Simatic S7 Ask
6ES7416-1XJ00-0AB0 CPU 416-1 CPU 416-1 CPU Module Siemens Simatic S7 1
6ES7416-1XJ01-0AB0 CPU 416-1 CPU 416-1 Siemens Simatic S7 1
6ES7416-1XJ02-0AB0 CPU 416-1 CPU 416-1 Siemens Simatic S7 2
6ES7416-2FK04-0AB0 CPU 416-2 CPU 416-2 DP Siemens Simatic S7 Ask
6ES7416-2XK00-0AB0 CPU 416-2 CPU 416-2 DP Siemens Simatic S7 8
6ES7416-2XK01-0AB0 CPU 416-2 CPU 416-2 DP Siemens Simatic S7 6
6ES7416-2XK02-0AB0 CPU 416-2 CPU 416-2 DP Siemens Simatic S7 21
6ES7416-2XK04-0AB0 CPU 416-2 CPU 416-2 DP Siemens Simatic S7 Ask
6ES7416-2XL00-0AB0 CPU 416-2 CPU 416-2 Siemens Simatic S7 2
6ES7416-2XL01-0AB0 CPU 416-2 CPU 416-2 Siemens Simatic S7 2
6ES7416-3XL00-0AB0 CPU 416-3 CPU 416-3 Module Siemens Simatic S7 5
6ES7416-3XL04-0AB0 CPU 416-3 CPU 416-3 Module Siemens Simatic S7 Ask
6ES7421-1BL00-0AA0 SM 421 Digital Input Module Siemens Simatic S7 13
6ES7421-1BL01-0AA0 SM 421 Digital Input Module Siemens Simatic S7 5
6ES7421-7BH00-0AB0 SM422 Digital Output Module Siemens Simatic S7 1
6ES7421-7BH01-0AB0 SM 421 Digital Input Module Siemens Simatic S7 1
6ES7421-7DH00-0AB0 SM421 Digital Input Module Siemens Simatic S7 1
6ES7422-1BH10-0AA0 SM422 SM422 Digital Output Module Siemens Simatic S7 3
6ES7422-1BL00-0AA0 SM 422 Digital Output Module Siemens Simatic S7 12
6ES7422-1FH00-0AA0 SM422 Digital Output Module Siemens Simatic S7 Ask
6ES7422-1HH00-0AA0 Output Module Siemens Simatic S7 Ask