ci801kit ABB产品
ci801kit智能电动机保护器和变频器配合应用易受电磁干扰的问题
当智能电动机保护器与变频器安装在同一个柜内配合使用时,智能电动机保护器会因为变频器的电磁干扰出现误动作的情况。某工程中,智能电动机保护器作为变频器的旁路保护电器,正常情况下变频器工作时,旁路没有电流通过,但现场却发现智能电动机保护器不断发出漏电故障报警。理论上来说,智能电动机保护器的抗电磁干扰能力满足国家标准要求,不应该出现这种情况,但实际上这种情况不少。因此建议智能电动机保护器和变频器分柜安装,尽可能远离,避免干扰。还有一种接线方式也经常用到,就是现场控制箱的按钮和远程的起、停信号直接接到智能电动机保护器的输入端子。这种方式的优点在于没有转接,接线比较简单,但这种接线方式在工程中经常出现控制信号的干扰问题。而出现这种问题的原因在于控制信号电压的不一致:端子输入的电压为24VDC,而输出口至控制箱信号灯的电压为220VAC。如果设计者没有注意这一点,将至控制箱的所有信号合用一根控制线的话,高压干扰低压的现象就会出现,导致控制出现异常。避免这种问题的方法也很简单,只要将这两种不同电压的信号用不同的控制电缆分开即可。
ci801kit
Allen Bradley 1771-OFE2/B Output Module Rev Q01 *EXC*
Series B, Rev Q01, Firmware Rev B
Allen Bradley 1785-L20B/C PLC-5 Processor *GOOD PULL*
Series C, Firmware Rev H
Cutler-Hammer A302KNY2 Starter Relay *NEW OLD STOCK*
Series A1, with C320MSC3 Aux. Interlock
Cutler-Hammer CE15CNS3 AC Relay Series B1 *EXC PULL*
Square D PDC6KA4 3-Pole Lug Kit *UNUSED OLD STOCK*
Square D XR-1777 Type Q0 30A Circuit Breaker *USED PULL
Bently Nevada 2201/02-02 System Monitor *GOOD PULL*
Designed for use in A/B 1771 I/O Racks
Bently Nevada 2201/03-03 4-Channel Monitor *GOOD PULL*
Designed for use in A/B 1771 I/O Racks
Bently Nevada PWA100811-01 A/B 1771 Rack Bd *GOOD PULL*
Used in A/B 1771 I/O Racks to interface 2201 modules
Cutler-Hammer DH362FDK Safety Switch *NEW OLD STOCK*
Gardner-Denver 16BLA086AM3 Torque Driver/Nutrunne?r
Xycom 5015T Pro-face 15" LCD Touchscreen Monitor *NICE*
Allen Bradley 700-N400A1 AC Relay Type N *EXC PULL*
Allen Bradley 700-P400A1 AC Relay Type P *EXC PULL*
Allen Bradley 100-A09NB3 AC Relay Series B *EXC PULL*
Allen Bradley 700-P400A1 AC Relay Type P Series A *EXC*
Allen Bradley 700-PK400A1 AC Relay Type P *EXC PULL*
Phoenix Contact Quick-On Bulkhead Connector Kit *NEW*
STI 43268-0200 MiniSafe-B Controller *GOOD USED PULL*
MS4300B-2 Series 20" MS4320B-2 with Attached Cable Set
GE Fanuc DisplayPAC-OP12?0/P4 12" LCD Industrial PC *NEW
Telemecanique/S?q-D LF1MP03DA79A74U Motor Starter *MINT*
Fanuc A06B-0314-B074 AC Servo Motor *REFURBISHED*
Fanuc A06B-0501-B204/?0008R AC Servo Motor *REFURBISHED*
Indramat MAC90C-0-GD-4C AC Servo Motor *REFURBISHED*
MAC90C-0-GD-4C?/110-A-0/WI520?/S01