IC693CMM311CA通用电气模块
变频器驱动的电机受到尖峰电压的冲击后,它的实际寿命与很多因素,包括,温度、污染、振动、电压、载波频率以及线圈绝缘的工艺等因素有关。 变频器的载波频率越高,输出电流波形越接近正弦波,这会降低电机的运行温度,从而延长绝缘的寿命。但是,更高的载波频率意味着每秒钟产生的尖峰电压数量更多,对电机的冲击的次数更多。图4给出了绝缘寿命随着电缆长度与载波频率的变化。从图中可知,对于200英尺长的电缆,当载波频率从3kHz提高到12kHz(变化4倍)时,绝缘的寿命从大约8万小时降低到2万小时(相差4倍)。
Siemens Simatic S7 200 PLC USED
Modicon/Gould Micro 84 Programmer P370 Used Works
Omron G730-VID16-B Remote Terminal
Allen Bradley Pyramid Resource Cat# 5130-RM A Used
Omron Sysmac CV500-II201Interface Unit NIB
Mitsubishi PLC Rack Type FCA-E3 Used
Fanuc Circuit Board Model# A16B-1211-0180/06B Used
Fanuc Circuit Board Model# A16B-1211-0150/13D Used
Fanuc I/O Board Part# A20B-0008-0540/01A used
Allen Bradley SLC 500 Proc. Cat# 1747-L532 Ser C Used
Allen Bradley Resistive Brake Unit Cat# 2090-XB33-32
Fanuc Computer Board A20B-2902-0020
Fanuc Computer Board A20B-2902-0371
Telemecanique Safety Limit Switch Cat@ XCS E7533 NIB
Fanuc Encoder Part# A860-0356-T101 Used
Allen Bradley High Speed Counter Cat# 1746-HSCE2 Used
Allen Bradley Barrel Switch Cat# 350-BAV used
Fanuc Servo Encoder Part# A860-0321-T131 Used
YASKAWA VARISPEED DRIVE CIMR-PBEB195T
Pacific Scientific Servo Amplifier Model SA603-001-01
Modicon AS-B260 analog output
Fanuc Board Part# A16B-1212-0300/07A Used
Allen Bradley Dataliner 20 Cat# 2706-B41J31 Used
Hydrolux Hydraulic Card Part# HAN-209-10-08 Used
Allen Bradley CNC Board Cat# 8000-GCC Used
ABB Welding Contactor Cat# EHW Size W5 Used 120 V Coil
Modicon AS-S985-012
Square D PLC Class 8050 Type MEMM-15 Used
Allen Bradley Panelview 550 Cat# 2711-K5A5 Ser F Used
HIROTEC AXCE/S PROGRAMMABLE CONTROLLER HT950201N
Control Techniquies Dynamax 3 HP Drive Used
Siemens Video Interface Cat# 6FX1115-0AA02 Used
BTM STC - VP Tri - Lok Power Clamps
MODICON TSX QUANTUM 140CPS12400 used
Banner Mini Screen GMMSDINT-1T2
Modicon TSX Quantum PLC card Part# 140CPS11410 Used
Square D Fusible Starter Enclosure Typ 12/3R
Siemens Simatic S7 PLC Part#6es7 231-0HC00-0XA0 Used
Cutler Hammer AE16LNO IEC Starter Used NICE!!!
Yaskawa Positionpack-130 CPCC-PP130D
Fanuc Keypad Board Cat# A16B-2600-0070/01A Used
Allen Bradley CompactLogix 2 1769-IQ16 1 1769-OA8 Used
MODICON AS-B805-016 800 I/O MODULE *NIB