当前位置:汽车配件110网 >> 供\求\合作、代理、招聘信息中心 >> 供应 >>1794-OV16现货AB |
详细内容:联系人:黄晓飞(销售工程师) 移动电话:18030263579 固话:0592-6895320 QQ:2472574325 超时检测机械设备在各工步的动作所需的时间一般是不变的,即使变化也不会太大,因此可以以这些时间为参考,在PLC发出输出信号,相应的外部执行机构开始动作时启动一个定时器定时,定时器的设定值比正常情况下该动作的持续时间长20%左右。例如设某执行机构(如电动机)在正常情况下运行50s后,它驱动的部件使限位开关动作,发出动作结束信号。若该执行机构的动作时间超过60s(即对应定时器的设定时间),PLC还没有接收到动作结束信号,定时器延时接通的常开触点发出故障信号,该信号停止正常的循环程序,启动报警和故障显示程序,使操作人员和维修人员能迅速判别故障的种类,及时采取排除故障的措施。 全球疯狂低价甩卖 NEW Texas Instruments TI U-05N 12-24VDC Input Module NEW Allen-Bradley 802T-BAP1 Series H Limit Switch 1794-OV16现货AB 1794-OV16现货AB 1794-OV16现货AB Allen-Bradley GG-473 Size 5 120VAC Operating Coil NEW Texas Instruments TI U-25N 100-120VAC Input Module (5) NEW Banner Engineering PBA-1 Power Blocks NEW Digital 70-18960-00 LA210 Servo Motor Reliance Electric 0-52823 DFSA Drive Module PULNIX TM-440XC High Resolution Camera TM-440 PULNIX TM-440X High Resolution Camera TM-440 PULNIX TM-440XC High Resolution Camera TM-440 NEW Westinghouse ART-OF 1264C62G19 Solid State Timer NEW Siemens 6EC1002-0A PLC Circuit Module NEW Tesch F122x04 Safety Expansion Relay F122 Reliance Electric 0-52837 ACCA Drive Module New GE Fuji 6KV$-1PG05 A3603 AF-300V$ Module Honeywell 82408485-001 SBLA-III Control Board Cincinnati Electrosystems 9650-128-D 128K Converter BALOGH MRER-21/AA TRANSCEIVER MODULE MRER21 HIRSCHMANN ENT-10515-R AC POWER SUPPLY MODULE (5) Buss R60060-3CR Class R Fuse Holders (5) Allen-Bradley 100-F-A40 Auxiliary Contacts NEW Ametek 80466SE Control Board NEW Datalogic ET3-5-C15 Proximity Sensor HIRSCHMANN ECFL 2 TWIN FIBER OPTIC INTERFACE MODULE Allen-Bradley 7300-UOJ CNC Control Board Allen-Bradley 1771-TCM/B Temperature Control Module AXIS ELC900 Controller Board Allen-Bradley GG-473 Size 5 120VAC Operating Coil GE Fanuc IC697MDL740 24/48 VDC Output Module LAND INFRARED LANDMARK BASIC LMB SIGNAL PROCESSOR Foxboro CM902WL I/A Series Power Module 2 - Rev. B GE Fanuc IC697MDL750 24/48VDC Output Module Reliance Electric 0-52876 VTGA Drive Module (5) Siemens BQD120 Bolt-On Circuit Breakers NEW Bailey Controls 6634205A1 Termination Loop Cable New Reliance Electric 0-52711-3 230V Dual Input Module AMCI Modicon 1834 PLC Series Encoder Module NEW Reliance Electric 0-55300 DV/DT Minpak Plus Board GIDDINGS & LEWIS 502-03657-03R2 PiC900 I/O DRIVER NEW Newport 203A-3 Digital Panel Meter
|
|