【51108088-100 霍尼韦尔】

：卢工

：

随着时间进入21世纪，我国大部分在20世纪80年代引进的大型数控镗铣床都已进入大修时期，由于数控系统的更新换代，原机床上所配的数控系统都已停产，系统的备件相当昂贵，因此大部分的用户都会利用机床大修的时机进行数控系统的改造。鉴于这种情况，觉得有必要结合自己的实践经验对此类机床的系统改造作一个总结，以利于大家今后的工作。

　　随着时间进入21世纪，我国大部分在20世纪80年代引进的大型数控镗铣床都已进入大修时期，由于数控系统的更新换代，原机床上所配的数控系统都已停产，系统的备件相当昂贵，因此大部分的用户都会利用机床大修的时机进行数控系统的改造。鉴于这种情况，觉得有必要结合自己的实践经验对此类机床的系统改造作一个总结，以利于大家今后的工作。

　　1. 改造方案的选择

　　1.1 数控系统的选择

　　从国内来看，这一类的机床基本上都是从欧洲进口的，所配的数控系统几乎全部是西门子公司的8M系统，PLC则是西门子公司的S5-150 系列， 而驱 动部分大部分是西门子的直流驱动。

　　在确定改造方案时，由于经费等方面的原因，大部分用户都会选择驱动及电机部分保留而只更换系统的方案，这样出于系统的延续性和兼容性的原因，用户多会选择西门子公司SINUMERIK 840C系统。该系统是西门子公司在九十年代初推出的高档系统，功能强大，使用灵活，适用于各种类型的机械加工设备，目前在国内也拥有大量的用户。如果用户在经费方面没有问题，则还可以有另一种选择，即选用SINUMERIK840D系统，这样的话，则驱动和电机都需要更换。SINUMERIK840D系统是西门子公司九十年代中期推出的一款纯数字的高档数控系统，与之匹配的驱动和电机也都是数字的，从发展趋势看，该系统已进入成熟期，现已成为西门子公司高档系统中的主流机型。

　　1.2 PLC的选择

　　根据所选系统的不同，也就相应选择了不同的PLC。

　　SINUMERIK840C系统所配的PLC是S5-135WD，在这里可供用户选择的是PLC 硬件的形式。一种选 择是分布式I/O (DMP)，另一种选择是扩展单元185U;两种 选择相比较而言，DMP的接线比较麻烦 ，但价格便宜，而185U接线简单，原150的前连接器都可保留，但价格较贵。从使用的角度来讲，两种方案都可以满足系统的功能要求。

　　SINUMERIK840D系统所配的PLC是S7-300，相对来讲接线的工作量与840C系 统选择DMP类似。

　　2. 机床电气系统的处理

　　在电气系统的处理上，要以"少动"为原则，基本上保留原机床的电气系统，只将跟系统有关的部分进行重新设计。对于外围输入输出点的处理，则以保留原地址为原则，即使有不用的点，也保留它的地址，不要被其它点占用，这样在 PLC程序的处理上要有利的多。这一点在后面再作解释。

51108088-100

New, Allen Bradley 800S-R3SX Selector Switch Ser. M 600VAC (BIN49)

NEW Pressure Stat HK 06ZC 030 UNITED ELECTRIC CONTROLS J21KD MODEL 8542 (S31B)

NEW NO BOX ALLEN BRADLEY PHOTOSWITCH 42GRL-9000 SER A (G2-2)

NEW IN PKG ALLEN BRADLEY LEGEND PLATE 800MR-W19 SER A (F2-4)

GENERAL ELECTRIC HEAVY DUTY SAFETY SWITCH 30 AMP 240 V.A.C. (JJ4)

ALLEN BRADLEY PHOTOSWITCH RETRO/DIFFUSE PHOTOHEAD 42LRC-5010 SER B (D3-2)

ALLEN BRADLEY 800T-PT16 X-208238 120V.50/60HZ. ILL. WHITE PUSH BUTTON (bin21)

GOOD USED ALLEN BRADLEY PHOTOSWITCH 22DJ9-4000 SER B (DR1G-2)

LOT OF 2 NEW IN BOX ALLEN BRADLEY SURGE SURPRESSOR RELAY 700-N5 SER C (F2-2)

NEW ALLEN BRADLEY 800MR-HH2BBK SER C SMALL ROUND SELECTOR SWITCH UNIT (D3-4)

ALLEN BRADLEY 42GRR-9002 PHOTOSWITCH SER A (BIN67)

NEW BIMBA MRS-1.5-XB-09 PROXIMITY SWITCH ?? (WL33-3)

NEW IN PKG PARKER SCHRADER BELLOWS SOURCING (PNP) WITH CONNECTOR (131-2)

ALLEN-BRADLEY 800-AK1A GREEN PUSHBUTTON PILOT DUTY 600V AC MAX NIB (CC6-3)

PETER PAUL ELECTRONICS SAFETY VALVE 24V DCHZ 7WATTS 1/16ORIFICE (MM2)

NEW IN BOX GE PILOT LIGHT 080 CEMA 080LDRR (DR1B-4)

NEW HUBBLE TOGGLE SWITCH HBL1221 NEW (I3-2)

2 ALLEN BRADLEY RED PUSHBUTTON SWITCH 800MR-A2 SER A W/800-XA SER B (F2-1)

NEW ALLEN BRADLEY PRECISION LIMIT SWITCH 802-PBSJ2023 SER A (DR1F-1)

NEW IN BOX SIEMENS SERIES B3 PHOTO-ELECT HEAD ONLY 3RG07-DP1 REFLEX (WL23-1)

LOT OF 3 GOOD SQUARE D PILOT LIGHT 9001 KM38 SER H GREEN 120 AC-DC (DR1F-2)

NEW IN BOX ALLEN BRADLEY PUSHBUTTON 800MS-CB7 SER A (215-4)

NEW IN BOX ALLEN BRADLEY ILLUMINATED PUSH BUTTON 800MR-PA16 SER D (F2-2)

NEW NIB BETATONE III 307973-001 117VAC TONE HIGH WARBLE NICE (202)

SQUARE D H361 30A HEAVY DUTY SAFETY SWITCH BREAKER 600VAC 50/60HZ NIB (AA4)

NEW, Square D 9012 FHG-3 Pressure Switch (GG2)

ALLEN BRADLEY 3 POSITION SELECTOR SWITCH NO KEY 800MR-J44B SER A (F2-1)

NEW IN BOX LINEMASTER FLOW SWITCH 2A191-SC3A 125-250C 7A W/CAB (131-3)

HONEYWELL GOOD USED MICRO SWITCH BZ-RW843573 10A 125 250 OR 480 (278-1)

NEW NIB ALLEN BRADLEY HEAD UNIT 800MS-CB SER A (225-3)

ALLEN BRADLEY PUSHBUTTON SWITCH 800T-QH10R SER T (D4-3)

GE GENERAL DUTY TG4321 MOD 4 30A 240 VAC 250 VDC (Q8)

NEW Square D 9001 T2L Ser. H Pilot Light Operator (WL19-2)

GE SAFETY DISCONNECT SWITCH TH4325 400A (17)

SQUARE D SAFETY SWITCH GENERAL DUTY h363 SER D3 100A 600 V AC (Q8)

NEW DWYER CAPSUHELIC PRESSURE GAGE GAUGE 500 PSIG 0-15 LBS (CC4)

NEW IN BOX ALLEN BRADLEY SURGE SURPRESSOR 1401-N10 SER A (F2-2)

NEW* GENERAL ELECTRIC ASP3224-347 PUSH BUTTON SWITCH 25A 277 VAC (F5-2)

SQUARE D SAFETY SWITCH D-321-N SER E1 TYPE 1 30A 240V AC (Q8)

NIB SQUARE D 52553 EW 9001 KXSDCB 3 POS MAINTAINED SELECTOR SWICH (W2-2)

NEW IN BOX HONEYWELL MICRO SWITCH 09-610-4350 BZ-2RW-A2 NEW BZ2RW80A (D2-1)

Snap-Tite hydraulic valves 575C12-12F LOT OF 2 (309-5)

GE HEAVY DUTY SAFETY SWITCH THN3362 60A 600VAC (51)

NEW ALLEN BRADLEY RED PUSH BUTTON 800MR-A6 SER A W/ 800M-XA SER B (F2-2)

LOT OF 14 NEW ALLEN BRADLEY PLATES 800MR-W13 (DR1F-1)

CCS PRESSURE SWITCH 604GM5 (280-7)

NEW? ELECTRO SWITCH 21305A ROTARY CAM SWITCH 21 SERIES 5 DECK (O1-1)

NEW ALLEN BRADLEY 42GRL-9000 SER A PHOTOSWITCH TRANS BEAM LIGHT SOURCE (H3-2)

GOOD USED VALVE OXYGEN ?? 1 1/2" C11 600 WOG W0G (JJ4)

LOT OF 6 NEW SCHRADER 4612 EXHAUST MUFFLER FILTERS 3/4 NPT (276)

LOT OF 3 POTTER & BRUMFIELD KUP11D15 RELAY USED NO BOX (EE2-3)

ALLEN BRADLEY 800T-PST16 SER N SMALL PILOT LIGHT TYPE 13 NEW (217-2)

NIB T&B SURFACE METAL RACEWAY FITTING EXTA DEEP SWITCH W/ RECEPTACLE BOX (D3)

NEW, United Electric Type J6 Model 142 Pressure Switch 0-18psi (N5)

NEW IN BOX DWYER PRESSURE SWITCH 1823-40 T42K (H1)

GOULD ITE HEAVY DUTY SAFETY SWITCH 60A NF352 600VAC (51)

NEW HANYOUNG SELECTOR SWITCH SRF-22 (BIN33)

CANFIELD CONNECTOR SERIES 8000 LOT OF 3 NEW IN BAGS (118-1)

NAMCO CONTROLS MAGLOCK EE9060 20000 15 WATTS RES. USED (E3-2)

SIEMENS ITE HEAVY DUTY VACU-BREAK SWITCH DISCONNECT F351H 30A (51)

GE QMR PANELBOARD UNIT QMR360 30A MODEL 1 (Q8)

ALLEN BRADLEY PUSHBUTTON SWITCH 800T-P16R SER T 120V 50/60 HZ W/ CONTACT (E8-1)

NEW IN BOX HONEYWELL GAS/AIR PRESSURE SWITCH C645A 1055 (B2)

ALLEN BRADLEY LIMIT SWITCH 802T-DS7 SER D NON-PLUG NO BOX (O3-2)

NEW NIB IDEC RY2KS-U AC120V LOT OF 10 RELAY RELAYS (BB2-1)

RUSSELLSTOLL 4464FC EXPLOSION PROOF PIN AND SLEEVE RECEPTACLE USED (WL35-1)

GOOD USED ALLEN BRADLEY EXTENDED HEAD PUSHBUTTON SWITCH 800HL-BP6 (208-1)

ASCO RED HAT VALVE 8320G702 24/DC 1/4 3 W NC NEW NIB (206)

NEW NO BOX PEPPERL + FUCHS NBB15-30GM50-WO PROXIMITY SENSOR 801649 (G2-1)

LOT OF 3 NEW IN PKG TEKTRONIX PUSH SWITCH 260-1573-01 (DR1C-1)

SQUARE D SAFETY SWITCH D221N SER E3 TYPE 1 ENCLOSURE 30A 240 VAC (JJ4)

NEW NO BOX ALLEN BRADLEY OILTIGHT LIMIT SWITCH 802T-A1P1 W/LEVER (DR1F-1)

NEW IN PKG ALLEN BRADLEY JUMBO MUSHROOM HEAD CAP 800T-N247R SER A (S7-1)

SIEMENS ITE VACU-BREAK HEAVY DUTY SWITCH F351 30A (G5)

NEW NO BOX CUTLER HAMMER 10250T20KB 2 POSITION SELECTOR SWITCH 1NC (204-1)

NEW IN BOX MAGNA-PROX LIMIT SWITCH 55189 SPDT 750 WATTS 120/240 VAC (WL12-2)

NEW ALLEN BRADLEY 800MB-OQB24RAS PUSH BUTTON PUSHBUTTON (BIN45)

Johnson Controls Differential Pressure Control P74DA-15C Range 8/60 PSI (DD4)

NEW ITT PRESSURE SWITCH 115P1C3-412 (108-2)

NEW ITT C300A12060A18 SOLENOID COIL 300 SIZE CLASS A 120V 60CY 110V 50 CY 217-4)

SQUARE D 9001-KXPB1RG DUAL STD PILOT LIGHT MISSING RED-GREEN LENS NEW (Z2-3)

NEW IN BOX ALLEN BRADLEY PUSH BUTTON SWITCH 800T-A2A SER T BLACK (H3-2)

ARL-LES PUSH BUTTON SWITCH 25A 2HP 277 VAC 2996AH85 (E2-1)

FRESH TAKEOUT ALLEN BRADLEY ILLUMINATED PUSH BUTTON RED 800HL-PPB16 SER (145-2)

NEW D&R MINIATURE LAMP BULBS LOT OF 10 656-145V-DC (J3)

FOXBORO FIELD STATION 743 CA-AP-2 MTS (4)

NEW Square D 9001 T2L Ser. B Basic ILL Push Button (WL41-2)

LOT OF 2 ALLEN BRADLEY PILOT LIGHT 800MR-P16 SER B (F2-1)

NEW IN PKG HONEYWELL MICRO SWITCH 4TL1-8F MS24660-26F 7930 (DR1H-1)

NEW IN BOX JOHNSON CONTROLS GRADUAL SWITCH S-224 S2241 S-224-110-20 PSI (C3-2)

FRESH TAKEOUT ALLEN BRADLEY ILLUMINATED PUSH BUTTON GREEN 800H-FPXP16 (145-2)

ALLEN-BRADLEY SELECTOR SWITCH 800MR-H31B SER A/800M-XA SER B NEW (CC6-3)

SCHNEIDER GEN PURPOSE SWITCH 30A GS1EERU20 (W2-2)

NEW IN BOX ALLEN BRADLEY 800MR-P16B PILOT LIGHT SMALL ROUND (DR1E-2)

NEW UNITED PIN CHUCK PRESSURE SWITCH 140-9613, 60 PSI (C4-1)

NEW IN BOX ALLEN BRADLEY PILOT LIGHT 800T-QT10W WHITE (WL42)

CROUSE HINDS CPS152R 20 AMP 1 HP ARKTITE RECEPTACLE USED NO BOX (52/49)

CROUSE HINDS DS 666 NX ON/OFF SWITCH ??? USED NO BOX (52/49)

NEW IN BOX ALLEN BRADLEY PHOTO SWITCH DUAL PROBE HOUSING 61LJ2-1000M (Y2-3)

NEW K1251041 SCHRADER BELLOWS PILOT VALVE NIB 115/60 SOLENOID AIR 1/4 (280-7)

NEW IN BOX ASCO TRIPOINT SB11A 8504U Pressure Switch/ Interruptor (K4)

NEW CUTLER-HAMMER EATON E50RBP9 LIMIT SWITCH RECEPTACLE W 9 PIN CONNECTOR(123-2?)

EDYNE PORTABLE OXYGEN ANALYZER ANALYTICAL FOR PARTS ?? (VV4)

STARFLITE SLIMFIT CASE 1954 INDICATOR BATTERY CHARGER INDUSTRIAL DOSIMETER (VV4)