900A01-0102
900A01-0102
本公司有大量庫存現(xiàn)貨，歡迎訂購，當(dāng)天可發(fā)貨！！?。。?！
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廈門莫格電氣自動化有限公司
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地址：廈門市思明區(qū)檳榔西里197號第四層B19單元
主營產(chǎn)品：AB，ABB，GE，本特利，?？怂共_，英維斯，西屋，艾默生，橫河
接地的目的通常有兩個，其一為了安全，其二是為了抑制干擾。完善的接地系統(tǒng)是PLC控制系統(tǒng)抗電磁干擾的重要措施之一。
系統(tǒng)接地方式有：浮地方式、直接接地方式和電容接地三種方式。對PLC控制系統(tǒng)而言，它屬高速低電平控制裝置，應(yīng)采用直接接地方式。由于信號電纜分布電容和輸入裝置濾波等的影響，裝置之間的信號交換頻率一般都低于1MHz，所以PLC控制系統(tǒng)接地線采用一點接地和串聯(lián)一點接地方式。集中布置的PLC系統(tǒng)適于并聯(lián)一點接地方式，各裝置的柜體中心接地點以單獨的接地線引向接地極。如果裝置間距較大，應(yīng)采用串聯(lián)一點接地方式。用一根大截面銅母線（或絕緣電纜）連接各裝置的柜體中心接地點，然后將接地母線直接連接接地極。接地線采用截面大于22 mm2的銅導(dǎo)線，總母線使用截面大于60mm2的銅排。接地極的接地電阻小于2Ω，接地極埋在距建筑物10 ~ 15m遠(yuǎn)處(或與控制器間不大于50m)，而且PLC系統(tǒng)接地點必須與強電設(shè)備接地點相距10m以上。
信號源接地時，屏蔽層應(yīng)在信號側(cè)接地；不接地時，應(yīng)在PLC側(cè)接地；信號線中間有接頭時，屏蔽層應(yīng)牢固連接并進(jìn)行絕緣處理，一定要避免多點接地；多個測點信號的屏蔽雙絞線與多芯對絞總屏電纜連接時，各屏蔽層應(yīng)相互連接好，并經(jīng)絕緣處理。選擇適當(dāng)?shù)慕拥靥巻吸c接點。
NUMATICS 24VDC 4.0W 14.5-232 PSIG-AIR SOLENOID VALVE, I22BB500R061D61
NUMATICS NPTF 150 PSIG-AIR PNEUMATIC SOLENOID VALVE, I23BB500MP14X61 NIB
NUMATICS 120V .24A 280 PSIG-AIR SOLENOID VALVE W/ BASE, I35SS73BK
BAILEY BABCOCK & WILCOX PNEUMATIC FUNCTION GENERATOR FG111
NUMATICS 150PSIG SOLENOID VALVE NNB I35SS43BK000030 101800
VICKERS VANE TYPE HYDRAULIC PUMP 4535V 60A 35
KYOHO56H40026 HCI-XD CYLINDER 40MM BORE 910MM STROKE 40X910-LB
YUKEN HYDRAULIC CYLINDER CJT70-FA 80C 65H-ABD
NUMATICS SOLENOID 225-372B, 24VDC 6.0 WATTS 26AMP, 150PDIG- AIR NNB
NUMATICS 123SS515K 120 VOLTS 50/60 HERTZ 150 PSIG DOUBLE SOLENOID VALVE
STAFSJO KNIFE GATE VALVE W/ PNEUMATIC ACTUATOR AC-160 102573
CAT PUMPS GENUINE PARTS CONNECTION ROD 121467 NIB
NUMATICS 120V .12A 150 PSIG-AIR SOLENOID VALVE W/ BASE, 082SA415K
ENIDINE HYDRAULIC SHOCK ABSORBER MT 206313 NIB
MONITEUR * SENTINEL PNEUMATIC VALVE WITH PARTS * AMYB-5120
FESTO LINEAR CYLINDER DZH-50-100-PPV-?A
SMC 32MM BORE 30MM STROKE 0.7MPA PRECISION CYLINDER, MTS32-W2316-30
BIMBA SS PNEUMATIC CYLINDER 094-NRP
FESTO PNEUMATIC STANDARD CYLINDER DNG-100-25-PPV-?A NNB
SCHROEDER FILTER KW NIB
SMC PRESISION AIR PRESSURE REGULATOR AR20-01B
FESTO DZH-40-PPV-A CYLINDER REPLACEMENT PARTS NIB
WHITEY 200PSI SPRING RETURN W/ VALVE 133 SR
MAC AIR VALVE 56C-52-RA *MANUFACTURER REFURBISHED*
FESTO 63MM BORE 725MM STROKE PNEUMATIC CYLINDER, DGP-63-725-PPV-?A-B
BIMBA BF-091-R SQUARE HEAD PNEUMATIC CYLINDER, NNB
DE-STA-CO 82P35 CLAMP 82P35- 5400000-NPT 105491
VEKTEK RIGHT HAND, 5000 LB CAPACITY SINGLE ACTION SWING CLAMP 15-0118-00 RH
NUMATICS 120V, 50-60HZ, 0.11 AMPS SOLENOID VALVE 153SA43AK
KYOHO MACHINE WORKS HCI-XD HYDRAULIC CYLINDER 50X108-CB / 66H50887
NUMATICS SOLENOID VALVE 24 VDC 6.3 WATTS 225-285B
AEROQUIP 2681-24 SINGLE WIRE BRAID HI-IMPULSE LOW PRESSURE HOSE, NNB
HYDRAULIC THREAD NUT HMV120
SMC CDLABN80-K5242-?XC11 (80+60)
BIMBA 25MM BORE 50MM STROKE PNEUMATIC CYLINDER E-25-50-U
PARKER FLANGE FITTING P11571-20-20 SAE CODE 61 FLANGE STRAIGHT SERIES 71
SMC PNEUMATIC AIR ACTUATOR MGPM63-75-Z73L-?XC35
NUMATICS 124BA415MP00061 24 VDC 150 PSIG PNEUMATIC VALVE
COMPACT PNEUMATIC CYLINDER QJ93-2096
JAMESBURY PNEUMATIC VALVE ACTUATOR ST-1200 W/ POSITIONER 103495
NUMATICS 120V .37A 50/60HZ 150 PSIG-AIR PNEUMATIC SOLENOID VALVE, 555SA43AK
PHD INC. PNEUMATIC SLIDE & CYLINDER, SGB84X450-BB-CB?-L9-PB15, NNB
OHIO OSCILLATOR HYDRAULIC ROTARY ACTUATOR H67-190-AECB-ES?-MS123X-SBHX-N
FESTO PNEUMATIC CYLINDER DKE-40-75-PPV-A
BOSCH * 250BAR HYDRAULIC VALVE * 0 811 403 117
COAX VMK 20 DR NC VALVE NNB
NUMATICS 150PSIG SOLENOID VALVE I34BB500KP00030
BOSCH 4600 PSI SERIES B DIRECTIONAL CONTROL VALVE 9810231276
FESTO GUIDED DRIVE DFM-25-100-P-A-?GF
SMC * GUIDE CYLINDER * MGGMB50-75-C73C?Z
YUKEN * HYDRAULIC CYLINDER * CJT140-FY80B140?B-ACB-EK
NUMATICS 120V, .30A, 50/60Hz, 150PSI PNEUMATIC SOLENOID VALVE 55455414K
