IC697CPU780IC697CPU780
空調(diào)系統(tǒng)的控制主要分為繼電器控制系統(tǒng)、直接數(shù)字式控制器（DDC）系統(tǒng)和可編程序控制器（PLC）系統(tǒng)等級幾種。由于故障率高、系統(tǒng)復(fù)雜、功耗高等明顯的缺點，繼電器控制系統(tǒng)已逐漸被淘汰。DDC控制系統(tǒng)雖然在智能化方面有了很大的發(fā)展，但由于其本身抗*力差、不易聯(lián)網(wǎng)、信息集成度不高和分級分步式結(jié)構(gòu)的局限性，從而限制了其應(yīng)用。相反，PLC控制系統(tǒng)以其運行可靠、使用維護(hù)方便、抗*力強(qiáng)、適合新型高速網(wǎng)絡(luò)結(jié)構(gòu)等顯著的優(yōu)點，在智能建筑中得到了廣泛的應(yīng)用。為了提高空調(diào)系統(tǒng)的經(jīng)濟(jì)性、可靠性和可維護(hù)性，目前空調(diào)系統(tǒng)都傾向于采用*、實用、可靠的PLC來進(jìn)行控制。
鄭娟萍
廈門仲鑫航自動化設(shè)備有限公司
采用傳統(tǒng)的繼電器控制系統(tǒng)來實現(xiàn)熱泵的控制，由于機(jī)械接觸點很多，接線復(fù)雜，參數(shù)調(diào)整不方便，而且機(jī)械接觸點的工作頻率低，容易損壞，可靠性差。采用直接數(shù)字式控制器（DDC）雖然可以減少接線，可靠性有所提高，但由于DDC其本身的抗*力差、不易聯(lián)網(wǎng)、信息集成度不高和分級分步式結(jié)構(gòu)的局限性，因此，越來越不能滿足復(fù)雜多變的智能控制要求。
B-Loc Corp. Keyless Bushing Locking Assy. 2-11/16" B400
MITSUBISHI MELSEC COMPUTE LINK MODULE CONTROL AJ71C24
EFECTOR E10278 SPLITTER BOX LUMBERG CABLE 4 PORT NEW
Bekomat Electronically Level-Controller Condensate Drain KA02 AD0 A6 230 PSIG
NEW LOT OF 24 QUALITY LONG LIFE LIGHT LAMP BULB 9032 T8CL25INT CLEAR T8 25W 130V
SAIA UBD23U08LMZ1 120 /PH 12V 2W UBD23U08LMZ1 NEW
NEW FAIRCHILD SEMICONDUCTOR FMBL1G200US60 3 POLE 3P 200 AMP A 200A 600 VOLT
Electronic Enterprises Electronic Electron Vacuum Tube 710/6011 4 PIN New
Comptrol Tensioncell Load Cell BB30X24K W2 Used
No Name Cable 50091422 LG 5M F010112 224 NEW
NEW NO NAME HEATER RHL 16086 270406 240 VOLT 1000 WATT 1000W
NEW SQUARE D 9001 KM-6 LIGHT MODULE SER G 500-600V 9001KM6
ITE POTENTIAL TRANSFORMER P-1 25100 P125100 1920 0.6 KV PRI 480 V SEC 120V 50/60
WOHNER 7 FUSEBLOCK FUSE BLOCK BUSBAR ADAPTOR 6032 22-0292 22-0502 690V 32A
Elcis Encoder Sensor X465-500-824-BZ-B-CV-R-01 X465500824BZBCVR01 New
SIEMENS CONTACTOR 3TF3211-0A 3TF32110A 30A 600V 24V Coil 3TX4011-8A
DYNAPAR/DANAHER UNKEYED SPROCKET 60TH 16002070218 5.5" x 1.625"B
TRUTZSCHLER PHOTOELECTRIC EYE E 017 9 494-14.330.000 AB E017 949414330000AB USED
NEW AECO PROXIMITY SENSOR SWITCH SI 8-C1 PNP NO
FARRIS 1 X 1 1/2 .196 2741 RELEIF VALVE SET 445 PSIG
SIEMENS 3TD4102-2B REVERSING CONTACTOR 3TD41022B 24V
NEW M SYSTEM ISOLATOR FSN-1AA 4-20mA DC FSN1AA
New Lot of 3 ST SGS-Thomson Electronic Component D2732A-2 MASG-12
New GP:50 Pressure Transducer 131-RV-CC-GT 131-RV CC-GT
YOKOGAWA 2302 21-VRX-2 24 VDC ELECTRONIC HYBRID METER
NEW ALLEN BRADLEY PILOT LIGHT 800T-PB26 800TPB26 60HZ 240V SER T
TWIN CITY SIZE 445 BAF-DW 100 HP 230/460V SQUIRREL CAGE CENTRIFUGAL BLOWER FAN
GE GENERAL ELECTRIC CIRCUIT BOARD CARD ASSEMBLY POWER MODULE 331X305AAG01
SQUARE D OPEN FLOOR BOTTOM ELECTRICAL ENCLOSURE 30"x19"x90" 30" x 19" x 90"
SIEMENS BATTERY BOX A5E00753961 A5E0-075-3961 A5E0075-3961 3.4V 10mA SL-2780/S
SB S&B DIGITEMP 48 TEMPERATURE CONTROLLER 0-99.9 DEG WFD-311-D WFD311D 385192816
ROSEMOUNT TRANSMITTER SMART 1151 GP 4 1151GP4S22S1B1D6
NEW KRAUS & NAIMER ROTARY CAM SWITCH C/ 2DA 231 C2DA231 16A 16 A AMP 500V
ALLEN BRADLEY OPTICAL ABSOLUTE ENCODER 845D-SJDN14BDCN4
NEW FLOWSERVE S/S STAINLESS STEEL SHAFT SLEEVE AY38913AA-316 AY38913AA316
Louis Allis Power Amplifier 46S1306-0010 46S13060010 Used
AGM Data Handler SPM9000-F2I SPM9000F2I 9-17 VDC 4-20mA 3500 PPS New
No Name Rotary Oil Seal 085-018-194 085018194 085 018 194 New
AMPHENOL CIRCULAR 7-PIN LOCKING RECEPT 9037 67-06C12-7S
NEW SYLVANIA METALARC LIGHT LAMP BULB M400/C/U 400 WATT 400W
SIEMENS SIMOVERT SINUSFILTER SINE WAVE FILTER 6kHZ 6SE7021-8EB87-1FC0 6SE7 021
Clark Reliance Probe TO20RK T020RK 450 PSI New
2 PAIR) SICK 30" LIGHT CURTAIN RECEIVER TRANSMITTER LGTS075-291 LGTE075-291
NEWJohnson Controls PENN Heating Thermostat T22BBC-3 240VAC 6AMP A 120V 10AMP A
New Sprectrol Precision Potentiometer 860 25% 1K OHM
New Sandelius Thermocouple 304SS MI23 Type J
MERCOID DA-34-153-5 DA341535 PRESSURE CONTROL SWITCH
IFM Efector 100 IF0001 IF-2002-ABOW Sensor IF0001IF2002ABOW New
NEW AUTOTRON PHOTOELECTRIC SENSOR E8AP10LC
NO BRAND CIRCUIT BOARD CARD OPC-09 OPC09 0PC09 SA400553
ING MAX FUSS GMBH 3F480-016.230 3 X 480V 3X 16 A LINE VOLTAGE FILTER
NEW SIEMENS 6GT2090-0BC00 CONNECTOR ASM 450/451/452/473 6GT20900BC00
NEW HALSTRUP TYPE N 64 V 30 KG N64V30KG 230V 15/18 U/min PRESSURE TRANSMITTER
Kurz Instruments Mass Flow Element Senor 455-08-SP-1' 12" Stem 24 VDC Used
NEW OMRON S87A-8801 D INPUT VOLTAGE POWER DETECTOR 30VDC 150mA S87A8801
Eurotherm SCR Power Controller AS-150A240V/LVS AS150A240VLVS 50A 240V Used
FSI Fork Standards Inc. ESE-360 ROTARY SHAFT ENCODER ESE360 12/28V New
Phoenix Bus Terminal IBS ST 24 BK LB-T IBSST24BKLBT 24 VDC New in Box
DIAMOND 120-2CL C-6172CL-08-P MASTER LINK STEEL NEW
MICRO SWITCH MLS-2E 115V. AC 50/60HZ., 10 V.A. MODULATED PHOTOELECTRIC EMITTER
emecanique Limit Switch Body XCS L749F3Z1 240 Volt 3 A Amp Used
FESTO DIGITAL VACUUM SENSOR SDE1-D10-G2-R14-L-P1-M8-G
Rieter Ingolstadt T-Stop Relay 0 160 259 0160259 KOMBI3 220 Volt 24 VDC Used
WEKSLER L8T2PO 0/100 0/0 RH 0/100F HUMIDITY CHART RECORDER USES W7-100-0-8
NEW TAYLOR 61S414-EL1 LOW PRESSURE UNIT 0/5PSIA 61S414EL1
SMC Electro-Pneumatic Regulator IT2031-N321 10VDC 0.54-0.7MPa 0.005-0.5MPa New
NEW EDWARDS LUNGEN DOOR BUZZER 15-1G1 24 DC SIZE SZ 1 151G1
NEW HARTING TERMINAL BLOCK CONNECTOR HAN E AV 16 PIN 500 VOLT HS12 16 AMP A 16A
Electron Tubes Unlimited Photomultiplier Tube 9727B 50/200 Amp 1347/1533 Volt
DODGE 1610 X 25MM KW 119600 Taper-Lock Bushing 161025MMKW 25 MM Bore New
New MTR Lot 2 AB-115621 460V 120J 0.02MFD+-20% 470 Ohm
FOXBORO I/A SERIES MAGNETIC FLOW TRANSMITTER IMT25-SDADB10N-AB
NEW IOR THYRISTOR RECTIFIER DIODE STUD 2N5207 IOR2N5207
Control Gaging Monitor Model 900 900486-1 9004861 115V 115 V Volt .8A .8 A Amp
ALLEN BRADLEY CHASSIS MODULE SERVO AMPLIFIER 1386-M4 135609 27/50A 1386-AA06
MC TECHNOLOGIES DIGI BRAKE DIGIBRAKE B60-04050-00001 50A 460V
Sonobond Ultrasonics SW902XD 100 PSI Selling "As-Is"
Omron Otair CB41159 Programmable Controller 3G2C3-CPUA1E Used
NIPPON CHEMI-CON C-800002 RWE 375 V 1800 UF CAPACITOR
Rice Lake Load Cell RL1250 2.1558 mV/V @ 150 KG Used
lot of 2 NO NAME FRAME LOCK ON/OFF LEGEND PLATE ALUMINUM NEW W/OFF SET
LOT OF 2 SQUARE D HOME POSITION LEGEND PLATE CLASS 9001 KN-300 ALUMINIUM NEW
Fibro Gas Spring Pneumatic 2480.13.03000.038 150 Bar 3000 daN New
AMK Phase Controller DR 16 DR16 Used
NEW EAO PUSHBUTTON SWITCH 03-624.011 03624011 10A 10 A AMP 250V
NEW HARTING HAN 10 ESS-F CONNECTOR 10 PIN FEMALE 16 AMP A 500 VOLT 16A HS12
NEW COMPTROL TENSIONCELL LOAD CELL BB30X24K W1
Meridian Weighing Mi-4000 90-120 vac 60/50 hz
Omron Heater Fault Detector K2CU-F40A-E K2CUF40AE 200 VAC 50 A Amp Used
Itt Cannon CIRCULAR CONNECTOR MS3101F10SL-4P
AEROVOX 61 QE 2073M 3100 MFD 15 DCWV CAPACITOR
NEW LOT OF 10 EIKO MINIATURE LIGHT BULB LAMP 1692
NEW LOT OF 10 NO NAME MINIATURE LIGHT BULB LAMP 1692
(BOX 10) LUMAPRO 2FMP9 1819 MINIATURE LAMP NEW
NEW SCHUNK CARBON MOTOR BRUSH F51 1-1/2"LENGTH 1-1/4"WIDTH 25/64"THICK
NEW TOMCAT FLOOR SCRUBBER SQUEEGEE BLADE 250-1235L 2501235L 23-3/4"L 3"W
Square D Dual Standard Pilot Light w/ Red/Green Lens 9001 KXPB1RG 120 V Volt New
Baumer Inductive Proximity Switch IFRK 20N1104/S12L NEW
Qualitrol Pressure Relief Diaphragm 208-60U 20860U 8 PSI 0.55 Bar New
GOOD USED PANASONIC CCD CAMERA GP-MF702D GPMF702D W/ COSMICAR TV 604052
Intermec Barcode ID Station 5900 5900B211491 w/ Norand 851-027-001 Power Supply
Sick Optic Electronic Photoelectric Single Point Sender WSU 26/2-210 230 VAC New
NEW UNITED ELECTRIC PRESSURE CONTROL SWITCH TYPE J54 MODEL 8300 10-100 PSI
Square D 9070K350D32 Transformer 9070 K350D32 .350KVA .350 KVA 600V HI 120V LO
ANACONDA ADVANCED TECHNOLOGY CIRCUIT BOARD MODULE CR787-0-7 CS-D-0787 CSD0787
GEMS Single Station Level Switch 174100 20VA 20 VA 120-240 V Volt VAC Used
emecanique Square D Base Unit TWDLCAA40DRF 240 VAC 24 VDC *MISSING COVER*
WHIRLPOOL FSP AC HEATER 3KW 230V 11-33-0103B-005 789952 032008
Encoder Products Accu-Coder 755A-06-S-0125-R-PU-1-S-S-N
NOS LIQUATITE 100'x1" LA-13 100FT x 1 INCH FLEX FLEXIBLE STEEL CONDUIT
MOOG INC CIRCUIT BOARD CARD PLC A43895-001 A43895001
ABB OESC500K03 500A 500 A AMP 480VAC BYPASS SWITCH
HONEYWELL MICRO SWITCH LOGIC MODULE FE-TR5-14 15Vac 12Vdc 8 PINS FETR514
CUTLER-HAMMER EATON V48M28T12EE 112.5 KVA HV: 480 DELTA LV: 208Y/120 TRANSFORMER
Minitimer Timer E. Dold U Sohne MI957 MI 957 .15-3sec
NEW BRYANT FEMALE SINGLE RECEPTACLE 20 AMP A 20A 125/250V
WORCESTER CONTROLS 20 1/2T4446TSE V1 R8 NEW
UTICOR Programmable Message Display 150-115N2L08EX NIB
NEW LXD LCD DISPLAY 4" Length 91D5R11J COUNTER/METER/TIMER
ROSEMOUNT 115 1AP4E22 1151AP4E22 1/2" NPT ALPHALINE PRESSURE TRANSMITTER NEW
LOT OF 11 PUSH CONNECT LEGRIS 90° ELBOW UNION 3109-60-18 31096018 3/8"OD 3/8"NPT
Omega DIN Programmable Temperature Controller CNi16D23
ROSEMOUNT 751AM1E5B FIELD SIGNAL INDICATOR 4-20 mADC METER INPUT
John Crane Spring Loaded Shaft Seal 2-4/25" M012-98 New
HONEYWELL IACD DC3003-0-000-1-000-W111 TEMP CONTROLLER
ARROW HART ARC-730-U Contactor ARC730U AR-75A 110V
OMRON BAR CODE BARCODE READER SCANNER V550-A20 V550A20
ROSEMOUNT 8712HR12N0B6M4 SMART FLOW TRANSMITTER 115V 1PH 4-20mA 1000 PULSES/SEC
NEW RITTAL INTERCONNECTING BRACKET KIT PS 4582 000 PS4582000
AEI APPLIED ELECTRONICS METABLOC METAL MONITOR CP-120E CP120E 120V
MOORE SYNCRO CONTROLLER BOX 3601A2N 15250-6 NEW
Dancer Potentiometer Assembly DPA-58-1 700004 5k Resistance Used
Turck Switching Amplifier MS1-33EX0-R/120VAC MS133EX0R120VAC 120 VAC 3.5 VA New
Phoenix Contact Analog Input Module IB STME 24 AI4/BP IBSTME24AI4BP 20mA Used
ACCUTECH XP-F I XPFI 12-30 VDC NEMA/TYPE 4X PRESSURE TRANSMITTER NEW
EMERSON LIEBERT LM SERIES SURGE SUPPRESSOR 277/480V LM150277YANSETW 3PH NEW
Berkeley Bam Series-64 Multi-Axis Machine Controller S64-1450 100-240 VAC 2 Amps
HONEYWELL TEMPERATURE CONTROLLER TEMP CONTROL DC300C-0-0A0-20-0000-0
Hydac Pressure Transducer HDA 3775-B-250-031 020642074 200 Bar New
KEYENCE LIGHT CURTAIN TRANSMITTER HM 32" SL-V48HM-T SLV48HMT 940mm 24V 113mA
IFM ATC Electronic Efector 8043AL02FL2AAXX Photoelectric Sensor NEW
MOORE EXTRUDED HEAT SINK RIBBED ALUMINUM ELECTRICAL ENCLOSURE 36"x28"x12"
Siemens Control Module TEB-G26ST312-4 TEBG26ST3124
Weidmuller CP-SNT 992534 0324 9925340324 24/30 VDC 125/480 VAC 6.5 A Amp Used
RIETER J7/A3 CONDITION MONITOR 0927 717/2
WEST GULTON 14420 0-599F RANGE TEMPERATURE CONTROLLER WITHOUT CASE
REGENT CONTROL DELAY TIMER TM301F1S-120 TM301 NEW
Fibro Gas Spring Pneumatic 2490.12.01800.016 150 Bar 1800 daN New
NEW NO NAME THYRISTOR STUD RECTIFIER GSPKT160-12C GSPKT16012C
No Name Cable 50091423 LG 10M F010103 88 NEW
SCHONAICH STEPPER MOTOR D-7036 EG 60.1 S 20 EG601S20
REBUILT SPECTREX SAFEYE OPS-FU3S OPSFU3S FLASH SOURCE
CUTLER-HAMMER PRL4B 1200A 1200 A AMP 480/277V 3PH 4W BREAKER PANELBOARD
COOPER GARDNER DENVER TIGHTENING MODULE BOARD TM 12 TM12 9006-0001 90060001
IRC 116 Type 4-1/2 EA Res. 100 Resister 50W New
Dynapar Spur Gear 60 Teeth 16002070216 5.5D x 1.125B New
Banner LX Series Emitter LX12EQ 10-30 V Volt VDC New
Dynapar Encoder 42-060 42060 M08003 3/4" DIA Shaft Used
NEW LOT OF 15 NO NAME POGO PIN PROBE HPA-25H HPA25H
NEW PTI 4001280 CH66394 850WATT 240VOLT THERMOCOUPLE HEATER 4-3/4"HEATER
Rees Cable Operated Switch 04944-500 Right or Left Hand Ten 10lb Trip Force Used
Euchner Sensor FG2 X 05 AP024-2000 C1248 FG2X05 AP024 030647 30V 250mA New
Parker Filter/Regulator 07E34A18AC 1/2" NPT 250 PSI 1700 KPa New
NEW SQUARE D FOOT PEDAL SWITCH 9002AW132 SER C
Northstar Tachometer Replacement Frame RIM Tach 8500 Series New
NEW ZERO-MAX T200077 TORQUE LIMITER TT2SS 14MM 1.25G
ST PHOENIX POWER SUPPLY OUTPUT BOARD GS-R400V RS-AL190A
WOHNER FUSEBLOCK FUSE BLOCK BUSBAR ADAPTOR 6032 22-0292 22-0502 690V 32A
EUROTHERM DRIVES DRIVE KEYPAD BOARD AH387914U001 387914
Yokogawa Panel Meter 250421/DC1267 M2493 200-0-200 DC Amperes 4-3/8"W X 4-7/8"L
Omron Relay Terminal G7TC-ID16 250VAC 24VDC w/ 16 24VDC Relay G7T-1122S Used
Cutler Hammer Series 20 Photoelectric 35 ft Reflex Sensor 1410B-6501 95-130 VAC
NEW (4) NATIONAL CARBON MOTOR BRUSH J61434 5/8" WIDTH 13/16" LENGTH 5/16" THICK
FALK 7C3-02BS 7C302BS 38.41:1 RATIO 20HP WORM GEAR GEARBOX SPEED REDUCER NEW
NEW MERCOID PP19-101 C1 300 PSI 102-G-4815-C-60-R
NEW TRANSMATION INC. MODEL 10 AUTO-ISOLATOR 50 MA DC MAX
NEW Takex Takenaka CP10 Photo Switch CP-10 Photoswitch
Murr Elektronik Din-Rail Mounting 63900 Lot of 10 New
Ogura Clutch Brake 50B-O 50BO 90 VDC New
METRIX EXTENSION CABLE 7386-01/4454-156 PMC/BETA NEW
Meto-Fer Proximity Switch PNP Inductive IR-065-PS-10L
emecanique VCD1 Switch Motor Control Kit New
SCIENTIFIC COLUMBUS RMS CURRENT TRANSDUCER 4074A-SC
LUWA TRANSMITTER DIFFERENTIAL PRESSURE DPG/T II 0110
NEW NATIONAL RECTIFIER NL-A390B NL A390B NLA390B
JUMO THERMOMETER GAS THERMOSTAT 8421-10-10 0-100 DEG C
NEW MORSE 700 TL ADJUSTING NUT PB 604302
Browning 1VP65 X 7/8" Variable Pitch Sheave 1VP65X78 New
NUM Line Filter AGOFIL004A 480 VAC 50 A Amp 50oC Used
IFM EFECTOR 200 INFRARED HEAT SENSOR OW5021 OW1-BPKG/US-100-DPV OW1BPKGUS100DPV
NEW STOCKER YALE 133K206C0251 ILLUMINATOR MODEL 13 UNI-K 5100K 30051868
ZENITH ZTSH200EC 2000A 2000 A AMP AUTOMATIC TRANSFER SWITCH 277/480V VOLT 3PH
