A20B-3300-0475电路板
A20B-3300-0475电路板
A20B-3300-0475电路板
数字量信号连接应注意的问题
变频器的输入信号中包括对运行/ 停止、正转/ 反转、点动等运行状态进行操作的数字量输入信号(开关型指令信号),这些信号常来自PLC 的数字量输出信号。PLC 通常利用其内部的继电器接点(继电器输出型P L C )或具有开关特性的元器件(晶体管输出型PLC)与变频器相连,得到运行状态指令,如图1 和图2 所示。在进行数字量信号的连接时应注意:
(1)使用继电器输出型P L C 与变频器相连时,应注意接触不良常带来变频器误动作,因此在实际接线中要注意连接可靠。
(2)使用晶体管输出型P L C 与变频器相连时,应注意晶体管本身的电压的高低、电流的大小等限制条件在其范围内,保证系统的可靠性。
(3)设计变频器的输入信号电路时,应尽量避免采用继电器等感性负载,因继电器开闭产生的浪涌电流可能引起变频器的误动作。
(4)当P L C 输出的开关信号进入变频器时,有时会发生外部电源和变频器控制电源之间的串扰,应注意对P L C和变频器分开接地,避免两者使用共同的接地线。
SGDV-30D01A-OY
SGMGV-30DDA6H
SGDV-50D01A-OY
SGMGV-44DDA6F
SGDV-210D01A
SGMGV-55DDA6F
SGDV-260D01A
SGMGV-75DDA6F
SGDV-280D01A
SGMGV-1ADDA6F
CIMR-AC4A0139AAA 各2
440R-N23126 数量11 面价1767
CIMR-JB4A0005BBA
CIMR-AB4A0038FBA
CIMR-JB4A0002BBA 各1
ABB ACS880-304-0820A-7+A018+C183 2
ABB ACS880-01-246A-3+D150+J400+P922 2
ABB ACS880-104-0600A-7+C183+E205 1
6DD1684-0BH1 1
1797-IE8 19年面价:23548 数量1
1764-24AWA 19年面价:7668 数量5
266HSHESBB7 1
2198-D012-ERS4 新面价:33596 15个
6GK5408-8GS00-2AM2 2 台
20F11NC022JA0NNNNN 6 15259
20G14TC650JN0NNNNN 3 339618
20F11NC043JA0NNNNN 1 29075
功率模块ATV1200C 700/045
横流式冷却风机 GFS680-230 400W 380V
柜顶风机 ATV1200C-D5000049 各1
SKR1MCB1PF755 1 21年面价8690
YOKOGAWA DX204-2-2/BT11M1 DX20422BT11M1
YASKAWA ELECTRIC UAACLA-37AA2K UAACLA37AA2K
YASKAWA ELECTRIC LHBVB027J LHBVB027J
YASKAWA ELECTRIC CIMR-P5U20300F CIMRP5U20300F
WESTINGHOUSE HNCG31200F HNCG31200F
WESTINGHOUSE DS416-1200A-LSIG DS4161200ALSIG
UNITED TECHNOLOGIES TVD6-200-10BL TVD620010BL
TOSHIBA VT130G3U-6400 VT130G3U6400
TOPAZ 97630-21 9763021
TEXAS INSTRUMENTS PLC CVU1000-8001 CVU10008001
TEXAS INSTRUMENTS PLC 505-5103 5055103
TEKTRONIX 3001GPX 3001GPX
TB WOODS WFC-4050-0CHT WFC40500CHT
TAYLOR ELECTRONICS 5202RA2000 5202RA2000
SYMAX 8030-CRM-211 8030CRM211
SYMAX 8010-SFW-601 8010SFW601
STAEFA CONTROL SYS REG9 REG9
SQUARE D SMSDL SMSDL
SPRECHER & SCHUH CA1-800-N CA1800N
SIEMENS 6SN1-145-1BA01-0DA0 6SN11451BA010DA0
SIEMENS 6SE9-212-0DA40 6SE92120DA40
SIEMENS 6SE6440-2UE31-5DA1 6SE64402UE315DA1
SIEMENS 6SE3-212-7DA40 6SE32127DA40
SIEMENS 6FX1-113-4AD01 6FX11134AD01
SIEMENS 6FM1-470-4BA25 6FM14704BA25
SIEMENS 6FM1-470-4BA20 6FM14704BA20
SIEMENS 6ES7-624-1AE00-0AE3 6ES76241AE000AE3
SIEMENS 6ES7-444-1MX0-00XE0 6ES74441MX000XE0
SIEMENS 6ES7-317-2EK13-0AB0 6ES73172EK130AB0
SIEMENS 6ES5-982-1AA11 6ES59821AA11
SIEMENS 6ES5-926-3SU11 6ES59263SU11
SIEMENS 6ES5-902-3SA12 6ES59023SA12
SIEMENS 6DS1308-8AA 6DS13088AA
SIEMENS 6AV7-801-0AA00-2AC0 6AV78010AA002AC0
SIEMENS 1PH7133-2ND02-0CA0 1PH71332ND020CA0
SICK OPTIC ELECTRONIC IVC-3D21112 IVC3D21112
SEW EURODRIVE SF4DT71D4BMGHRASDX3 SF4DT71D4BMGHRAS
SANYO DENKI 65AA030TXR03 65AA030TXR03
RELIANCE ELECTRIC SA3000DC070 SA3000DC070
RELIANCE ELECTRIC B/M-805401-5R BM8054015R
RELIANCE ELECTRIC 805401-1R 8054011R
RELIANCE ELECTRIC 805401-15 80540115
RELIANCE ELECTRIC 803456-21T 80345621T
RELIANCE ELECTRIC 50R4160 50R4160
RELIANCE ELECTRIC 45C-360 45C360
RELIANCE ELECTRIC 2EC4040 2EC4040
RELIANCE ELECTRIC 29422-V 29422V
RELIANCE ELECTRIC 1KSK06307-WQ 1KSK06307WQ
RELIANCE ELECTRIC 1KSK05412-PQ 1KSK05412PQ
RELIANCE ELECTRIC 0-52837 052837
RELIANCE ELECTRIC 0-51893-1 0518931
PERCEPTRON 9110014 9110014
PCME LTD DM-990 DM990
PACIFIC SCIENTIFIC M5HLON-00115-00 M5HLON0011500
ONE AC CORP CX4196-NG CX4196NG
OMRON 3G3RV-A2300-AV1 3G3RVA2300AV1
OKUMA E4809-032-487 E4809032487
NSK 7028A5TDBC7P4 7028A5TDBC7P4
NDC P680163 P680163