Page 1 5000/5020 CONTROL 5000/5020 CONTROL 5000/5020 CONTROL 5000/5020 CONTROL 5000/5020 CONTROL THE / MACHINING CENTER THE / MACHINING CENTER LATHE / MACHINING CENTER THE / MACHINING CENTER THE / MACHINING CENTER ELECTRICAL MAINTENANCE ELECTRICAL MAINTENANCE ELECTRICAL MAINTENANCE ELECTRICAL MAINTENANCE ELECTRICAL MAINTENANCE TRAINING MANU TRAINING MANU TRAINING MANU...
Page 2 Intro...
Page 3 Class Size : 6 persons COURSE OBJECTIVES - Upon completion, the individual will be proficient in all basic skills necessary to troubleshoot an electrical side problem on any Okuma CNC machine tool with the OSP 5000/5020 or 500 control. The course is designed to provide the information needed to diagnose any machine problem.
Page 4 Basic Electrical Maintenance for Okuma Lathes, Machining Centers, and Grinders with the OSP 5000/5020/500 series control. Course Outline MONDAY SECTION Instructor and Class Introductions Okuma History Terminology Safety Okuma Documentation Machine Definition Three A) Introduction to CNC Machine Operation Four A) CNC Operation Panel and Functions.
Page 5 TUESDAY SECTION OSP 5020 Construction Five A) Power Supplies B) Printed Circuit Board Functions C) Servo Systems a) Axis Drives b) Spindle Drives D) Feedback Systems Diagnostics A) Using Actual Position Pages B) Using Block Data Pages C) Using Check Data Pages WEDNESDAY Diagnostics continued D) Alarms...
Page 6 1904 Okuma Machinery Works Ltd., (OMW) started manufacturing lathes and milling ma- chines. The Okuma Symbol depicts two pieces of metal conjoined in a perfect union to symbol- ize the union of two cultures, teamwork, and a single supplier of machine and control. A blend- ing of two separate forces to provide a single source in support of a common purpose.
Page 7 1978 Introduced automatic gauging built into control. 1979 Introduced the next generation CNC, the OSP 3000 series. Okuma opened a branch office in Long Island, New York for sales and service. 1980 Started using CRT’s on controls along with a tool path display feature.
Page 8 1996 Purchased Plant 2, a 112,000 sq ft facility for manufacturing machining centers. OMA renamed OAC (Okuma America Corporation) 1997 OTI became the international training center for Okuma. OAC opens a Sales & Service facility in Sao Paulo, Brazil. Okuma America Corporation...
Page 9 The following terms or acronyms pertain to some of the terminology used at Okuma. Some of the terminology is used throughout the industry while some pertain only to Okuma machines. Axis board Axis card ACC/DEC Acceleration/Deceleration...
Page 10 Direct Memory Access Controller Distributed Numerical Control DRAM Dynamic Random Access Memory EC/EO I/O board on Okuma Lathes and Grinders Electrical Control Processor board I/O control board on Okuma M/C’s Electronics Industries Association EEPROM Electrically Erasable Programmable Read Only Memory...
Page 11 Numerical Instruction Per Second OCON RCON with Acc/Dec activated Outside diameter ODIF RDIFF with Acc/Dec activated OPUS Okuma Processing Unit and System Okuma Sampling Path Parallel Several bits (8,16, or 32) of information processed at a time. Printed circuit board Pulse Generator...
Page 12 Spindle, Tool, M Codes Servo Processor board Timing Board Turret Control Card Turret Control Unit Timing Fieldnet Processor board Spindle Drive on Okumas Vector Controlled AC Motor Control Word 16 bits, half a long word, 2 bytes Okuma America Corporation Rev. 1-16-01...
Page 13 C165DI C165DI D12<5 D12<5 C165DI C165DI D12<5 D12<5 4?3E=5>D1D9?> 4?3E=5>D1D9?> 4?3E=5>D1D9?> 4?3E=5>D1D9?> 3?>D5>D 3?>D5>D 3?>D5>D 3?>D5>D =1389>54569>9D9?> =1389>54569>9D9?> =1389>54569>9D9?> =1389>54569>9D9?> =1389>5?@5B1D9?> =1389>5?@5B1D9?> =1389>5?@5B1D9?> =1389>5?@5B1D9?> 3?>CDBE3D9?> 3?>CDBE3D9?> 3?>CDBE3D9?> 3?>CDBE3D9?> 4917>?CD93C 4917>?CD93C 4917>?CD93C 4917>?CD93C @1B1=5D5BC @1B1=5D5BC @1B1=5D5BC @1B1=5D5BC C?6DG1B5 C?6DG1B5 C?6DG1B5 C?6DG1B5 C385=1D93CI=2?<C C385=1D93CI=2?<C C385=1D93CI=2?<C...
Page 15 OSP 5000/5020 CONTROL SAFETY ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 17 SAFETY SAFETY PRECAUTIONS Okuma machines are fully equipped with various safety devices to prevent operators and the machine itself from accidents. However, operators are urged to operate the machine with safety in mind. Strict observance of all safety guidelines indicated in the documentation provided with the machine is essential.
Page 18 1) Before starting daily operations, always check the lubrication oil levels. 2) Always use the specified brand or grade of lubrication oil. 3) For cutting fluid (coolant), use Okuma’s recommendation whenever possible. 4) Change and replenish lubrication oil for each reservoir at the predetermined schedule as explained in the operation &...
Page 19 10) Never attempt to clean the machine or inspect it while it is operating. Always bring it to a complete stop before conducting such operations. Okuma America Corporation Rev. 8-21-01...
Page 20 Servo Drive unit (BL-IID) VAC drive unit Power cables OTHER GENERAL PRECAUTIONS 1) Wear suitable safety clothes. 2) Keep work areas clean as well as the machine. 3) Do not touch controls with wet hands. Okuma America Corporation Rev. 8-21-01...
Page 21 OSP 5000/5020 CONTROL DOCUMENTATION ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 23 DOCUMENTA A A A A TION DOCUMENT TION TION DOCUMENT DOCUMENT TION TION The following is a list of the common manuals that come with every Okuma machine: OPERATION MAINTENANCE OPERATION & MAINTENANCE SPECIAL FUNCTIONS #1,2,3 or 4 ELECTRICAL SCHEMATICS ALARM & ERROR LIST PROGRAMMING...
Page 24 The rest of this section provides a topic directory. It is intended as a reference guide when looking for certain information about an Okuma CNC machine. Some manuals are specific to a certain application or a certain machine and might not be mentioned here. For example, there is a manual for first time users of MC-V, MC-H, and MCR-B type machining centers that is labeled OPERATION GUIDE.
Page 25 Operation & Maintenance Machine Specifications Joint Mechanism Maintenance C-axis Operation Maintenance C-axis Rapid Feedrate Operation & Maintenance Machine Specifications Troubleshooting Maintenance C-axis Calendar Timer Special Functions Calendar Timer Carriage Feedrate Operation & Maintenance Machine Specifications Okuma America Corporation Rev. 1-16-01...
Page 26 Oper/Appended Figures Periodic Maintenance Maintenance Maintenance & Inspection Peripheral Functions Operation Specifications Specifications Operation Specifications Structure Maintenance Structure Coolant High/Low Pressure Special Functions Coolant High/Low Unit Maintenance Coolant Unit Tank Operation & Maintenance Periodic Maintenance Okuma America Corporation Rev. 1-16-01...
Page 27 Periodic Maintenance Floppy Disk IBM/OSP Format Special Functions NC Mach Prog I/O Functions Loading Software Maintenance Troubleshooting Handling Operation Floppy Disk Handling Maintenance Maintenance Maint & Insp Foundation Requirements Operation & Maintenance Handling & Installation Okuma America Corporation Rev. 1-16-01...
Page 28 Operation & Maintenance Machine Specifications Machine Height Operation & Maintenance Machine Specifications Machine Operation Operation & Maintenance Machine Operation Machine Specifications Operation & Maintenance Machine Specifications Magnetic Relays Maintenance Troubleshooting Manual Data Input Operation Operation Okuma America Corporation Rev. 1-16-01...
Page 29 Operation Operation Operation Operation Operation Monitor Special Functions NC Operation Monitor Optional Specifications Operation & Maintenance Operation OSP 5000/5020 Control Check Data Display Maintenance Maintenance & Insp/Diag Description of Comp Maintenance Maintenance & Insp Periodic Maintenance Maintenance Maintenance & Insp...
Page 30 Operation & Maintenance Machine Specifications Structure of OSP Maintenance Structure of OSP Sub Programs Special Functions Sub Programs Swing Arm Loader Special Functions Swing Arm Loader SSR Output Maintenance Troubleshooting Table Specifications Operation & Maintenance Machine Specifications Okuma America Corporation Rev. 1-16-01...
Page 31 Spare Parts Operation & Maintenance Touch Setter Trace Special Functions Tool Path Display Transportation of Machine Operation & Maintenance Handling & Installation Troubleshooting Maintenance Troubleshooting Mechanical Operation & Maintenance Insp & Maint Spindle Maintenance Spindle Drive Okuma America Corporation Rev. 1-16-01...
Page 32 Spindle Drive Unit Work Catcher Special Functions Work Catcher Work Counter Special Functions Work Counter Working Range Diagram Operation & Maintenance Technical Data Work Reset Special Functions Work Reset by M Code Zero Offsets Operation Operation Okuma America Corporation 2-10 Rev. 1-16-01...
Page 33 OSP 5000/5020 CONTROL MACHINE DEFINITION ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 35 4. Input/Output system (I/O) - This area of the (CNC) carries out the sending and receiving of information to external devices. The following information describes these four areas in more detail to give the student a basic understanding of how a control functions: Okuma America Corporation Rev. 8-21-01...
Page 36 UV light source. Under normal operating condi- tions this window is covered with a piece of tape to prevent accidental changing of the data. On Okuma controls, this chip contains the System Boot Program. Okuma America Corporation...
Page 37 Information such as part programs, param- eters, tool offsets, etc. can be stored in this type of device. Two types of long term memory storage devices currently being used on Okuma controls are C-MOS and Bubble memory.
Page 38 CNC. This unit reads a paper tape which has a number of holes arranged in a specified pattern along its length. Each pattern represents a code or character which can be deci- phered by the control. Okuma America Corporation Rev. 8-21-01...
Page 39 External Switches The simplest form of an I/O device is the external switch. Examples of input devices are limit switches, proximity switches, pressure switches, etc. Relays, solenoids, LED’s, and lamps are examples of output devices. Okuma America Corporation Rev. 8-21-01...
Page 40 The origin of the coordinate system is the center of the spindle. Okuma lathes can be Flat bed or Slant bed type lathes. The slant bed allows the chips to fall into the chip pan rather than on tools or slideways. Figure 3-1 shows the axis nomenclature for an Okuma lathe.
Page 41 X axis: Longitudinal movement of the table (positive when fed to the left) Y axis: Crosswise movement of saddle (positive when fed toward the operator) Z axis: Vertical movement of Spindlehead (positive when fed upward) Okuma America Corporation Rev. 8-21-01...
Page 42 X axis: Longitudinal movement of the table (positive when fed to the right) Y axis: Vertical movement of Spindlehead (positive when fed upward) Z axis: Crosswise movement of saddle (positive when fed toward the operator) B axis: Rotating motion of NC rotary table (positive when fed clockwise) Okuma America Corporation Rev. 8-21-01...
Page 43 Y axis: Vertical movement of Spindlehead (positive when fed upward) Z axis: Crosswise movement of Column (positive when fed away from the operator) B axis: Rotating motion of NC rotary table (positive when fed clockwise) Fig. 3-4 Okuma America Corporation Rev. 8-21-01...
Page 44 X axis: Longitudinal movement of the table (positive when fed toward the operator) Y axis: Spindlehead crosswise movement (positive when fed leftward) Z axis: Spindle Quill vertical movement (positive when fed upward) W axis: Crossrail vertical movement (positive when fed upward) Fig. 3-5 Okuma America Corporation 3-10 Rev. 8-21-01...
Page 45 On Okuma grinders there are two types of coordinate systems. One is a work coordinate system for grinding and the other is a wheel coordinate system for wheel dressing.
Page 46 Plane OD Grinding (GP-N, GU-S) b) Angle OD Grinding (GA-N, GU-S) Work Coordinate System for OD Grinding Fig. 3-6 ID Grinding (GP-N, GU-S) ID Grinding (GI-N) Work Coordinate System for ID Grinding Fig. 3-7 Okuma America Corporation 3-12 Rev. 8-21-01...
Page 47 Plane OD Grinding (GP-N, GU-S) b) Angle OD Grinding (GA-N, GU-S) Wheel Coordinate System for OD Grinding For Internal (ID) Grinding c) ID Grinding (GP-N, GU-S) d) ID Grinding (GI-N) Wheel Coordinate System for ID Grinding Fig. 3-8 Okuma America Corporation 3-13 Rev. 8-21-01...
Page 48 OSP 5000/5020 CONTROL MACHINE OPERATION ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 50 32-bit double-engine architecture increased the machines’ cutting feedrate from 1.25 m/min to 15 m/min. The following is a chart of the OSP 5000 series controls. For the rest of this manual, if the specific control type is not mentioned, the topic being discussed refers to all these controls.
Page 51 Okuma America Corporation Rev. 8-21-01...
Page 52 QUIT Used to Used for Used to enlarge the contracting quit frame the frame enlarge scale setting LAYOUT LAYOUT EXEC. QUIT Begins Ends display of display of tool data tool data being used being used Okuma America Corporation Rev. 8-21-01...
Page 53 I/O signals other of the actual program BLOCK menus position of the axes in DATA various relation to the other data zero offset Okuma America Corporation Rev. 8-21-01...
Page 54 • Displays the NC program for the currently selected turret, A or B. • Simultaneous display of NC program for both turrets, A and B. • Display of data entered through the keyboard in MDI mode. • Display of the scheduled programs. Okuma America Corporation Rev. 8-21-01...
Page 55 • Displays machine’s machine specification codes. • Displays history of alarms (last 12 alarms). • Displays ATC I/O’s (if applicable). • Displays post process gauging data (if applicable). • Displays in process gauging data (if applicable). Okuma America Corporation Rev. 8-21-01...
Page 56 ITEM ↑ ITEM ↓ ON/OFF EXTEND Used to Used to Returns to Used to select displays turn on main related to tool data parameter and off menu in set data graphic Tool Data guide display Okuma America Corporation Rev. 8-21-01...
Page 57 (format) a specified file program file more directory file files menus TAPE DATA CONV EXTEND Available on Used to Returns to Tape transfer or main conversion backup menu of specification parameters Edit Aux Okuma America Corporation Rev. 8-21-01...
Page 58 ZERO SET BACK Used to set Used to Calculates Used to immediately back new data add to data from up data. On newer OSP currently the actual 5020 (1994 and newer) stored data position (RAPA) Okuma America Corporation Rev. 8-21-01...
Page 59 • Optional Parameter (Bit) • Turret Angle • Turret Parameter Bit Some of the screens displayed will have more than one page. These pages can be accessed by pressing the key on the NC Operation Panel. Okuma America Corporation 4-10 Rev. 8-21-01...
Page 60 EXTEND Searches Prepares Stops at a Selects a Searches Used to for a for a number scheduled for a return to sequence sequence sequence program. scheduled first menu number restart program number Graphics option Okuma America Corporation 4-11 Rev. 8-21-01...
Page 61 RELATI RELATI EXTEND ZEROSET PRESET Used to show a point Returns to relative to the program main zero. menu. Okuma America Corporation 4-12 Rev. 8-21-01...
Page 62 Machining Center Machining Center Machining Center MARKER SET QUIT Changes Ends view point area/angle marker view change. SELECT QUIT Used to set Used to Ends data the data. add to setting existing mode. data Okuma America Corporation 4-13 Rev. 8-21-01...
Page 63 BLOCK Check the ATC menus position of the axes in DATA Data or APC various relation to the screen other data zero offset TOOL PART BLOCK SEARCH ATC/APC CHECK PROGRAM DATA DATA EXTEND Okuma America Corporation 4-14 Rev. 8-21-01...
Page 64 • Displays the NC program for the currently selected turret, A or B. • Simultaneous display of NC program for both turrets, A and B. • Display of data entered through the keyboard in MDI mode. • Display of the scheduled programs. Okuma America Corporation 4-15 Rev. 8-21-01...
Page 65 • Displays EC outputs • Displays Machine Operation Panel inputs. (if applicable). • Displays Machine Operation Panel outputs. • Displays in process gauging data • Displays machine’s specification codes. (if applicable). • Displays machine’s machine specification codes. Okuma America Corporation 4-16 Rev. 8-21-01...
Page 66 ITEM ↑ ITEM ↓ ON/OFF EXTEND Used to Used to Returns to Used to select displays turn on main related to tool data parameter and off menu in set data graphic Tool Data guide display Okuma America Corporation 4-17 Rev. 8-21-01...
Page 67 (format) a specified file program file more directory file files menus TAPE DATA CONV EXTEND Used to transfer or Available on Returns to backup Tape main parameters conversion menu of specification Edit Aux Okuma America Corporation 4-18 Rev. 8-21-01...
Page 68 ZERO SET BACK Used to set Used to Calculates Used to immediately back new data add to data from up data. On newer OSP currently the actual 5020 (1994 and newer) stored data position (RAPA) Okuma America Corporation 4-19 Rev. 8-21-01...
Page 69 • Optional Parameter (Bit) • Turret Angle • Turret Parameter Bit Some of the screens displayed will have more than one page. These pages can be accessed by pressing the key on the NC Operation Panel. Okuma America Corporation 4-20 Rev. 8-21-01...
Page 70 ZERO This mode is used for checking and or setting the zero offsets of the individual axes. PARA- This mode is used for setting, checking, or modifying the various METER parameters. Okuma America Corporation 4-21 Rev. 8-21-01...
Page 71 This key is used to input the asterisk symbol for multiplication. It is also used as the wild card symbol when working with files. This key is used to input the division or forward slash symbol. Okuma America Corporation 4-22 Rev. 8-21-01...
Page 72 This rotary switch setting is ignored during the thread cutting function(G33). The Feedrate override switch is effective if: 1) G00 is programmed in MDI mode. 2) Single Block mode is ON in AUTO mode. 3) Jogging the axes in MANUAL mode. Okuma America Corporation 4-23 Rev. 8-21-01...
Page 73 G50 code. COOLANT The coolant keys are used to control the coolant supply condition. AUTO and Coolant is not supplied regardless of the MANUAL OFF operation mode selected. Okuma America Corporation 4-24 Rev. 8-21-01...
Page 74: Rev.
This can be checked by observing the LIMIT status lamp on the NC operation panel. As a precaution, a visual inspec- tion of the turret should be made before attempting to rotate the turret. Okuma America Corporation 4-25 Rev. 8-21-01...
Page 75 With this setting, only the A turret is activated in the operation modes. Individual B turret operation: With this setting, only the B turret is activated in the operation modes. Individual A/B turret operation: Okuma America Corporation 4-26 Rev. 8-21-01...
Page 76 Stroke End With this toggle switch set to ON, the operator is allowed to use Limit Cancel the Pulse Handle to move an axis off of a stroke end limit switch. Okuma America Corporation 4-27 Rev. 8-21-01...
Page 77: Rev. 8-21-01
Machining Center Machine Operation Panel The following is a description of the various switches on the machine operation panel for an OSP 5000/5020M type control. A picture of this panel can be seen on page 4-34. AXIS This set of keys allows the operator to choose which axis he or SELECT she wants to move in Manual mode.
Page 78 60 seconds. CHIP CON This key is used to turn on and off the chip conveyor. RESET This button resets the control. This button is also used to clear certain types of alarms. Okuma America Corporation 4-29 Rev. 8-21-01...
Page 79 These three Block Skip switches are assigned codes of /1, /2, and /3. “/” is equal to /1. CYCLE When this key is turned on, the machine will stop after the STOP execution of a main program. Okuma America Corporation 4-30 Rev. 8-21-01...
Page 80 DATA” screen on the CRT can be accessed by pressing the “atc/apc” function key (F6). INTER When this key is pressed, the spindle orientation completion LOCK conditions and the tool change position conditions are ignored. RELEASE It will not ignore other mechanical conditions. Okuma America Corporation 4-31 Rev. 8-21-01...
Page 81 This will return the pallet to the machine. 1 STEP The automatic pallet change cycle will advance step by step every ADVANCE time this key is pressed. This operation is ineffective if the “RUN” mes- sage is displayed on the CRT. Okuma America Corporation 4-32 Rev. 8-21-01...
Page 82 MC user parameter word No. 7. LIGHT This is the Operation End Light activation switch. If this switch is on, the YELLOW light on the pendant arm will come on when an end of program code is read. Okuma America Corporation 4-33 Rev. 8-21-01...
Page 83 The green indicator lamp will come on as soon as the main breaker is turned on. It turns off as soon as the Power On button is pressed. Okuma America Corporation 4-34 Rev. 8-21-01...
Page 84 MACHINE OPERA MACHINE OPERA TION TION MACHINE OPERA MACHINE OPERA MACHINE OPERATION TION TION Okuma America Corporation 4-35 Rev. 8-21-01...
Page 85 MACHINE OPERA MACHINE OPERA TION TION MACHINE OPERA MACHINE OPERA MACHINE OPERATION TION TION Okuma America Corporation 4-36 Rev. 8-21-01...
Page 86 MACHINE OPERA MACHINE OPERA TION TION MACHINE OPERA MACHINE OPERA MACHINE OPERATION TION TION Okuma America Corporation 4-37 Rev. 8-21-01...
Page 87 MACHINE OPERA MACHINE OPERA TION TION MACHINE OPERA MACHINE OPERA MACHINE OPERATION TION TION Okuma America Corporation 4-38 Rev. 8-21-01...
Page 88 MANUAL TOOL CHANGE TOOL CHANGE CYCLE TOOL CLAMP TOOL UNCLAMP Manual Tool Change Operation - > LOADING LS EMERGENCY LOAD LOAD MODE RETURN - > LOADING/SYS RESET SYS. RESET START TOUCH SENSOR Check Panel Okuma America Corporation 4-39 Rev. 8-21-01...
Page 89 Tailstock quill retract Tailstock quill advance Chuck clamp Chuck unclamp Turret indexing direction (CW) Turret indexing direction (CCW) rapid positioning X axis positioning Y axis positioning Z axis positioning Spindle rotation speed in RPM. Okuma America Corporation 4-40 Rev. 8-21-01...
Page 90 OSP 5000/5020 CONTROL CONSTRUCTION ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 92 5000/5020 series control. The various power supplies, the boards in the control rack and in the EC I/O rack (mostly on M/C’s), and the different servo systems found on Okuma machine tools with the 5000/5020 series control will be discussed.
Page 93 When determining the Vdec the programmed spindle speed should be the maximum program- mable spindle speed for the machine. The measuring device should be an analog volt meter or an oscilloscope. Some of the latest DVMs are fast enough, i.e. Fluke 87. SPINDLE MOTOR Okuma America Corporation Rev. 8-21-01...
Page 94 -24 volts DC “working 24 volts” which controls or turns on the various solenoids and relays on the machine. The EC control power source provides power to such things as the operation panel, work light, hour meter, and the ISO 24 volt power supply. Okuma America Corporation Rev. 8-21-01...
Page 95 CONSTR CONSTR UCTION UCTION CONSTR CONSTR CONSTRUCTION UCTION UCTION Okuma America Corporation Rev. 8-21-01...
Page 96 The RLP and RHP are located or housed in the CPU rack. The first CPU power units that came out with the OSP 5000 series control were called HP and LP. When the graphics capability was incorporated into the control, the power units were la- beled GHP and GLP.
Page 97 UV ON position. This will ensure that the 5 volt monitoring circuit is re-activated. ADJ . +12V +24V +24V OKUMA O P U S 5 00 0 R H P P O W E R S U P P LY Fig. 5-2 Okuma America Corporation Rev. 8-21-01...
Page 98 OSP 5000/5020 series control. The following is a description of each major unit that makes up the control rack of the OSP 5000/5020 series control. The control (or logic) rack is referred to as the OPUS (Okuma Processing Unit and System).
Page 99 Main Board IIB Main Processor Board The MB-IIB is the main control board for the OSP 5000/5020. It consists of a main processor and associated interfaces for data communication. The system features a high performance Motorola 68000 microprocessor with a clock frequency of 15Mhz. The MB-IIB controls the IC memory (ROM), bubble memory, slave processors, and interface circuits.
Page 100 Mbytes of memory. Up to three MC 11 or three MC 12 cards may be mounted on the MB-IIB but a combination of both kinds is not permitted. The CPU can only access one or the other. As of January “94” the MC 11 card is no longer being used on new models. Okuma America Corporation Rev. 8-21-01...
Page 101 5000/5020 series control. On Okuma controls, the bubble memory capacity is usually referred to in bits and ram memory capacity is referred to in bytes.
Page 102 The following is an explanation of the different board configurations which can be found on Okuma machines with the OSP 5000 series control. Not all the boards are mentioned here, just the standard set of boards that are found with the particular main board.
Page 103 CRP-IIC (A911-1692) or (A911-1693) CRT Processor board This board is used for data communication with the OSP 5000/5020 NC operation panel. It transmits the video signal to the NC operation panel for the CRT display. This board is com- prised of a Character IF, a Color Graphic IF, and a Serial IF. The 1692 board is the standard board.
Page 104 Prior to the design of the SVP-IID, the SVP-IIC was used in conjunction with the TB board. The TB board provided timing for the SVP as well as providing the DA signal for the spindle. These two functions have now been combined into the SVP-IID board. Okuma America Corporation 5-13 Rev. 8-21-01...
Page 105 The back-up memory is a 48Kbyte S-RAM. This type of RAM is a C-MOS type memory device whose contents are retained by a 3.6 V lithium battery. The back- up memory is used to save tool location and position data. It also saves APC data. Okuma America Corporation 5-14 Rev. 8-21-01...
Page 106 This board is used exclusively for 3.5 inch FDD control. It has no RS-232C IF or printer IF. Floppy Manufacturer Model Guaranteed Signal DiskSize Cable Length 3.5" Y.E. Data Co. YD-686C-1501C 4.5m Max. (1.0/1.6M dual-type) 3.5" Y.E. Data Co. YD-702-6037 0.5m Max. (1.0/2.0M dual-type) 8" Hitachi FDD412A 6m Max. Okuma America Corporation 5-15 Rev. 8-21-01...
Page 107 IF’s, 2 contact IF’s, and a local bus. The TCC-A is the main control card and the TCC-B is the valve control card. A learning function monitors the indexing position each time the turret indexes, with each subsequent indexing operation becoming more precise. Okuma America Corporation 5-16 Rev. 8-21-01...
Page 108 The EC I/O rack is external or separate from the OPUS control rack. This rack is found mostly on Okuma machining centers. This rack consist of a Driver/Receiver board and some individual I/O boards. The D/R board is also called the EC Control Unit and acts as the interface between the ECP-IIA board and the EC I/O rack.
Page 109 This card is used when more than 32 inputs are needed. This extension card is connected to the CCOP2 substation. Only two CCOP3 cards can be connected to the CCOP2 card. If more than 96 inputs are needed, an additional CCOP2 card has to be added. Okuma America Corporation 5-18 Rev. 8-21-01...
Page 110 E4982-702-002-4M (4 meters) Single Core E4982-702-002-2M (2 meters) Single Core E9101-I06-001 (3 meters) Single Core E4982-702-003 (6 meters) Double Core E9101-I06-002 (10 meters) Double Core E9101-I06-003 (5 meters)Double Core E9101-I06-006 (1 meter) Double Core Okuma America Corporation 5-19 Rev. 8-21-01...
Page 111 T h e o u t s i d e e d g e i s clean cut but a line that is more than 2/3 of the circumference of the fiber itself. Okuma America Corporation 5-20 Rev. 8-21-01...
Page 112 UCTION SERVO SYSTEMS This section will cover the different types of servo systems used on Okuma’s 5000/5020 series CNC machines. A servo system can be defined as a system for the automatic control of motion by means of feedback. The controlled motion can be for positioning and/or velocity (RPM).
Page 113 Pulse Width Modulation. The width or duration of the pulse is proportional to the amplitude of the incoming DA signal at the pre-determined sampling time. A block diagram of the LDU TR system is shown below. Okuma America Corporation 5-22 Rev. 8-21-01...
Page 114 UCTION UCTION The next axis drive servo system Okuma introduced was a flux vector Brushless Drive Unit. This servo system incorporates AC drive technology. This drive system also utilizes PWM technology. The DC power supply (DCPS) for this servo system can provide power for up to six drive amplifiers.
Page 115 Over Current-Is triggered at 10 % of IOCM trigger level. Yellow Saturation-Drive amplifier received a heavy load. SAOP Yellow Sub Amp Operation-Turns off when machine ready signal is received. PSON Green Power is supplied to drive amplifier. Okuma America Corporation 5-24 Rev. 8-21-01...
Page 116 The SVC-2 board has the same LED indicators as the SVC board on a BDU-A drive amp. Refer to the table for the SVC board on the previous page for a description of these LED’s. Okuma America Corporation 5-25 Rev. 8-21-01...
Page 117 Instantaneous Over Current in the Motor. F.OL Fin Over Load-Heatsinks are getting too hot. High voltage was detected. The 300 VDC went above 430 VDC. Amp Sat Yellow Amp Saturation-Drive amplifier received a heavy load. Okuma America Corporation 5-26 Rev. 8-21-01...
Page 118 Set VNFB and VLG to the value given in the Servo Characterisitics Table. The next adjustment that should be made is VCOM which needs to be adjusted until the correct DIFF value (on characteristics table) is seen on the CRT during rapid movement (GOO). Okuma America Corporation 5-27 Rev. 8-21-01...
Page 119 The control circuit voltage has dropped below specification. Instantaneous Over Current in the Servo amplifier of second axis. Instantaneous Over Current in the Motor of second axis. Yellow Sub Amp Operation of second axis-Turns off when machine ready signal is received. Okuma America Corporation 5-28 Rev. 8-21-01...
Page 120 This LED turns on whenever the E8 data from the encoder is abnormal. Green CPU is in normal operation. CPU is running. This Alarm LED turns on when the APA, MPR, or E8 LED turns on. Okuma America Corporation 5-29 Rev. 8-21-01...
Page 121 If necessary the NFB breaker on the unit itself can be turned off to discharge the capaci- tors immediately. If the breaker is not turned off, it will take 5 or 10 minutes for the capacitors to discharge. Okuma America Corporation 5-30 Rev. 8-21-01...
Page 122 UCTION UCTION In Okuma language, the BDU, BLD, and BLIID type A drives are referred to as NC controlled axis drives. These drive amplifiers are used for high accuracy positioning. They receive a digital command signal from the SVP board.
Page 123 This system uses a tach generator as the feedback device for the motor and an optical pulse generator as the feedback device for the spindle. A block diagram of the SDU 600 can be seen below. Okuma America Corporation 5-32 Rev. 8-21-01...
Page 124 UCTION UCTION Some Okuma machines are equipped with Fanuc spindle servo drives and motors. This servo system utilizes an optical encoder for the motor speed feedback and a pulse generator for spindle speed and position feedback. On machining centers, the command signal is generated by the ECP board.
Page 125 UCTION UCTION In 1985, Okuma introduced its own VAC spindle drive amplifier. All the characteristics of this spindle servo system are basically the same as the Yaskawa system. The feedback system and command signal origination are very similar. This drive has a light blue face plate.
Page 126 UCTION UCTION In 1994, Okuma introduced the VAC III. The VAC III is very similar to the VAC II except for its physical size. The VAC card I was incorporated into the VAC control board. The spindle speed and position feedback are sent to the VAC control board (CN 2) where it is converted into optical pulses and sent back to the SPC6 card.
Page 127 This voltage signal should be a DC level, with very little noise or ripple. Most tachgenerators used on the Okuma axis drive motors are rated at 7 volts per 1000 rpm and 20 volts per 1000 rpm for the SDU 600. The voltage that the tachgenerator is rated at can be determined by looking at the characteristics sheet for the axis or spindle drive in question.
Page 128 UCTION Absolute Position Encoder This Okuma patented device is used for axis speed and position feedback. The D6 type is only used on DC axis servo systems (LDU’s). The axis servo systems which utilize the BL motor (BDU, BLD, or BLIID) use the E,F,FB, or FC type absolute position encoder. The E and F types are being phased out.
Page 129 Therefore, care should be taken to align the pin and hole. Remount the four special long head bolts to attach the encoder dia- phragm to the chassis of the motor. Finally tighten the input shaft to 60kg/cm(854inch pounds). Okuma America Corporation 5-38 Rev. 8-21-01...
Page 130 (sine & cosine) which are 90° out of phase. These two signals are sent to the preamp board where they are combined and sent back to the OSP control as the POS(position) signal. Okuma America Corporation 5-39 Rev. 8-21-01...
Page 131 Pulse Generators Okuma uses pulse generators for spindle speed and position feedback. One exception is ma- chines with Fanuc spindle drives and spindle motors. The Fanuc motor uses an optical encoder for motor speed feedback. Encoder is a more common name for a pulse generator. Pulse gen- erators on Okuma machines can be of the optical or magnetic type.
Page 132 This type of resolver is seen mostly on the Okuma LR, LT, and Cadet M series lathes. The adjustment procedure for this feedback device can be seen in the maintenance manual for the specified machine.
Page 133 OSP 5000/5020 CONTROL DIAGNOSTICS ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 135 ZA(B) Actual Z axis position Remaining distance to Z axis target point X axis feedrate in mm/min Z axis feedrate in mm/min Sequence number Tool change command Actual spindle speed in rpm Actual position of the spindle in degrees Okuma America Corporation Rev. 8-21-01...
Page 136 Sensor Reverse display indicates the Touch Sensor is on. Touch Probe Reverse display indicates the Touch Probe is on. The Load Status display screen on the right side of this display screen shows the load conditions of the spindle and individual axes. Okuma America Corporation Rev. 8-21-01...
Page 137 Xc Target point of thread cutting in X axis Zc Target point of thread cutting in Z axis Programmed I value (radius of cut with respect to the X axis) K Programmed K value (radius of cut with respect to the Z axis) Okuma America Corporation Rev. 8-21-01...
Page 138 The three other menus in the Block Data mode are: NEXT Displays the data to be executed after the “CURRENT” data. QUEUED Displays the data to be executed after the “NEXT” data. READ Displays the latest block of data stored in the buffer register. Okuma America Corporation Rev. 8-21-01...
Page 139 Programmed spindle speed (overridden) Axis traverse speed in mm/min Axis traverse speed in mm/rev Programmed number of main program repetitions Actual number of programs executed Hole number for restart Sequence specified by the sequence stop Okuma America Corporation Rev. 8-21-01...
Page 140 Turret rotation time during tool change (The time duration from the moment the turret is unclamped and reclamped during a tool change.) RLOAD Displays the actual percentage of torque (load) on the servo motors RHTRT Rotation speed of a high-speed turret in rpm Okuma America Corporation Rev. 8-21-01...
Page 141 Program INPUT DATA DATA EC Extend I/O’s If a machine needs extra I/O’s, an additional EC board is added to the control rack and these I/O’s can be viewed in the Extended EC I/O menus. Okuma America Corporation Rev. 8-21-01...
Page 142 The time and date can be reset by going into the Edit Aux. mode and pressing the F1 function key for the date and the Extend function key (F8) for the time. Okuma America Corporation Rev. 8-21-01...
Page 143 These specification codes are used to tell the control what type of hardware the machine has. The machines’ Management Data Card will show which codes should be turned on. These specification codes are labeled EC spec codes on the Management Data Card. Okuma America Corporation Rev. 8-21-01...
Page 144 System variables are values the programmer can access through the control (NC) for checking the condition of the machine. For example, tool length and its diameter could be accessed through these variables. (VTOFH and VTOFD) Okuma America Corporation 6-10 Rev. 8-21-01...
Page 145 Hexadecimal is a base 16 numbering system. One Hexadecimal number represents four bits. Octal is a base eight numbering system. One Octal number represents three bits. Okuma America Corporation 6-11 Rev. 8-21-01...
Page 146 2³ 2² 2¹ 2º 2³ 2² 2¹ 2º binary bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 2¹ 2º 2² 2¹ 2º 2² 2¹ 2º Octal Okuma America Corporation 6-12 Rev. 8-21-01...
Page 147 The alarm state is functions work possible. cleared by W00–W*** normally. removing the cause of the alarm. Error Messages Same as above. Same as above. Error messages are cleared as soon as 2000–2999 another function is performed. Okuma America Corporation 6-13 Rev. 8-21-01...
Page 148 MB board. The board or card corresponding to the address having been accessed will most likely be faulty. If necessary replace the board or card to which the address points. The two left most digits are dropped when looking for the address. Okuma America Corporation 6-14 Rev. 8-21-01...
Page 149 DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS Okuma America Corporation 6-15 Rev. 8-21-01...
Page 150 DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS Okuma America Corporation 6-16 Rev. 8-21-01...
Page 151 (for DNC) FF7E20 - FF7E2F EC BOARD ( E2 ) or EC Card FF7FE0 - FF7FFF OSP5 (remote display unit) *3 Two digits from the left are ignored. Six digits from the right are effective. Okuma America Corporation 6-17 Rev. 8-21-01...
Page 152 FF7FC0 - FF7FDF (for DNC) *3 Two digits from the left FF7E20 - FF7E2F EC BOARD (third) or EC Card FF7FE0 - FF7FFF OSP5 (remote display unit) are ignored. Six digits from the right are effective. Okuma America Corporation 6-18 Rev. 8-21-01...
Page 153 FF7FA0 - FF7FBF Not-used area FF7E10 - FF7E1F EC BOARD (second) FF7FC0 - FF7FDF (for DNC) or EC Card FF7E20 - FF7E2F EC BOARD (third) or FF7FE0 - FF7FFF OSP5 (remote display unit) EC Card Okuma America Corporation 6-19 Rev. 8-21-01...
Page 154 Look up the alarm in the “Alarm & Error List” manual for an explanation of the alarm. MDI OPERATION ****-** ALARM-* Alarm Message Alarm Code 20.0378 45.0496 25.0267 40.0845 ACTUAL DATA Part BLOCK CHECK EXTEND SEARCH POSIT INPUT DATA DATA Program Okuma America Corporation 6-20 Rev. 8-21-01...
Page 155 DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS Okuma America Corporation 6-21 Rev. 8-21-01...
Page 156 DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS Okuma America Corporation 6-22 Rev. 8-21-01...
Page 157 DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS DIAGNOSTICS MDI OPERATION Alarm-A Turret index control abnormal A-turret 260- 20.0378 45.0496 25.0267 40.0845 Part ACTUAL BLOCK DATA CHECK EXTEND SEARCH POSIT INPUT Program DATA DATA Okuma America Corporation 6-23 Rev. 8-21-01...
Page 158 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-24 Rev. 8-21-01...
Page 159 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-25 Rev. 8-21-01...
Page 160 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-26 Rev. 8-21-01...
Page 161 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-27 Rev. 8-21-01...
Page 162 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-28 Rev. 8-21-01...
Page 163 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-29 Rev. 8-21-01...
Page 164 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-30 Rev. 8-21-01...
Page 165 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 6-31 Rev. 8-21-01...
Page 166 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-32 Rev. 8-21-01...
Page 167 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-33 Rev. 8-21-01...
Page 168 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-34 Rev. 8-21-01...
Page 169 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-35 Rev. 8-21-01...
Page 170 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-36 Rev. 8-21-01...
Page 171 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-37 Rev. 8-21-01...
Page 172 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-38 Rev. 8-21-01...
Page 173 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-39 Rev. 8-21-01...
Page 174 Machining Center Machining Center Machining Center Machining Center Machining Center Okuma America Corporation 6-40 Rev. 8-21-01...
Page 175 OSP 5000/5020 CONTROL PARAMETERS ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 177 Item up or Item down function keys. To access the next page of a particular menu press the Page up or Page down buttons. The following are the different types of parameters on Okuma lathes with the OSP 5000/5020L series controls.
Page 178 Remember to add .2 inches to the RAPA value to set the - SEL. When the Stroke End Limits are reset the USER Parameters are assigned the same dimensions. The operator needs to reset the User Parameters. Okuma America Corporation Rev. 8-21-01...
Page 179 12.8 msec until the feed unit amount (Rapid) is reached. The same happens in reverse when an axis is commanded to stop. Every 12.8 msec the feed unit amount (Rapid) is reduced by the acceleration unit amount (Accel Rapid) until RCON reaches “0”. Okuma America Corporation Rev. 8-21-01...
Page 180 If the acceleration unit amount (Accel Rapid) is changed to a value larger than the preset one, it could adversely affect motor and machine performance. Therefore, be sure to contact your Okuma distributor when a change of the acceleration unit amount is desired.
Page 181 Optional Parameter (Bit) These parameters control the turning on and off of functions needed for proper program operations. Inch/metric mode would be an example of this parameter. These parameter values are either a “1” or a “0”. Okuma America Corporation Rev. 8-21-01...
Page 182 (approx. 3 min) before turning off the power. After powering up again, check that the parameters have been changed to the new settings. The alarm is cleared after the machine is powered up again. The backup counter counts in Hexadecimal from 00 to 4F on a continuous basis. Okuma America Corporation Rev. 8-21-01...
Page 183 Machining Center Machining Center Machining Center Machining Center The following are the different types of parameters on Okuma machining centers with OSP 5000/5020M series controls. Common Variable These programming variables have the same function as the common variables on lathes, they are common to all programs.
Page 184 NC Optional Parameter (long word) These parameters are CNC related parameters that the control needs to look at when machining parts. These parameters check for programming errors when certain functions are performed, i.e. cutter radius compensation. Okuma America Corporation Rev. 8-21-01...
Page 185 These parameters set the travel limits of the individual axes. These limits are very simi- lar to the SEL’s on lathes. PITCH ERROR COMP These parameters specify the range for which pitch error compensation is used within the total travel range of the axis. Okuma America Corporation Rev. 8-21-01...
Page 186 MDI enter G00 (axis in question)0 , WRITE and cycle start. Power off, change encoder, power up, go to zero offset in system parameters, position cursor at the appropriate axis and press CAL then WRITE. Okuma America Corporation 7-10 Rev. 8-21-01...
Page 187 Z axis has to move to position first. The setting range is 0 to 3 with 0 meaning no movement and 1st, 2nd, and 3rd setting the order in which the axes will move. Okuma America Corporation 7-11 Rev. 8-21-01...
Page 188 Records the amount of time the spindle has been rotating. CUTTING TIME Records the amount of time the cutting feedrates are fed to the axes. The last three parameters mentioned will not record the time when the Machine Lock mode is on. Okuma America Corporation 7-12 Rev. 8-21-01...
Page 189 “extend key” (F8) then the “backup” key (F7). It is recommended that this proce- dure be done every time a parameter is changed. Incidentally on Okuma Grinders, the backup occurs as soon as the WRITE key is pressed. Okuma America Corporation 7-13 Rev.
Page 190 OSP 5000/5020 CONTROL SOFTWARE ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 197 The software loading procedures will also be discussed along with parameter backup procedures. Every Okuma machine comes with its own Management Data Card (MDC). This sheet of paper is very useful when troubleshooting or diagnosing a problem. The MDC shows which software files should be in the memory of the machine.
Page 198 It is possible to load just the B diskette if faulty parameter data is suspected. Initializing a diskette When the Okuma disk drive is used, the diskette has to be formatted (initialized) to the OSP format. To initialize a diskette do the following: 1.
Page 199 “output data is? !” 5. If the Write key is pressed at this time, the file automatically gets named “A.TOP”. When the cursor (>) appears at the bottom of the screen, the backup is complete.Press D-PIP Quit. Okuma America Corporation Rev. 8-21-01...
Page 200 Do the same procedure for the W-axis interference distance with the exceptions of set 100,000 at step #2 and add –100,000 at step #3(on W-axis this value can be brought to zero). The data for the W-axis interference is entered in O.P.L.W. # 45. Okuma America Corporation Rev. 8-21-01...
Page 201 MC User Parameter Word 4 ∅∅ 83 ∅ System Parameters MC System Parameter Word 41 ∅ 84 ∅ User Parameters MC User Parameter Bit 6 ∅∅ Pitch Error Compensation (Press Page Down to view all of the menu.) Okuma America Corporation Rev. 8-21-01...
Page 202 This will rename the file U.TOP. Once this is done, repeat the procedure to reload the parameters to see if everything loads up properly. Remember to reload the edited file and not the original ?.TOP. Okuma America Corporation Rev. 8-21-01...
Page 203 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation Rev. 8-21-01...
Page 204 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation Rev. 8-21-01...
Page 205 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation Rev. 8-21-01...
Page 206 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-10 Rev. 8-21-01...
Page 207 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-11 Rev. 8-21-01...
Page 208 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-12 Rev. 8-21-01...
Page 209 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-13 Rev. 8-21-01...
Page 210 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-14 Rev. 8-21-01...
Page 211 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-15 Rev. 8-21-01...
Page 212 Lathe Lathe Lathe Lathe Lathe Okuma America Corporation 8-16 Rev. 8-21-01...
Page 213 Functions Manual. Loading Software The following is a procedure on how to load the system software files on an Okuma lathe or machining center. 1. Compare the software files in the BB∅ directory with the files on the A diskette. This will insure that the correct software files for the machine in question are about to be loaded.
Page 214 8. Control Floppy Loading Finish (or End) Control Floppy Loading Wait 8. Turn the Load Mode switch Off. 9. Press the System Reset switch. 10. Re-load the parameters using the parameter loading procedure. Okuma America Corporation 8-18 Rev. 8-21-01...
Page 215 >B…Backup PBU file >C…Copy >U…Update PBU file >R…Recover(floppy B) 9. Remove D diskette and load B diskette into floppy disk drive. 10. Type in “B” and press the write key, CRT displays: Backup OK(Y/N)! Okuma America Corporation 8-19 Rev. 8-21-01...
Page 216 NOT TO BACK UP files (and MCU). It is Very Impor- tant to save (user parameters) and the (system parameters). The file should be saved if the customer has the MOP Tool or IGF function. Okuma America Corporation 8-20 Rev. 8-21-01...
Page 217 CRT: “DIR(space)FD0: , PN:” 23. LOAD MODE 24. Remove B disk from floppy disk drive. 25. Press SYSTEM RESET. 26. Power 27. Power Okuma America Corporation 8-21 Rev. 8-21-01...
Page 218 OSP 5000/5020 CONTROL SCHEMATIC SYMBOLS ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 230 CONTROL ON switch Pushbutton CONTROL OFF switch CONTROL OFF Pushbutton CR ON CR OFF CR EC Emergency stop Emergency stop switch on pushbutton Fig. 1-2 NOTE: The relay name varies depending on the machine models. Okuma America Corporation 9-12 Rev. 8-21-01...
Page 231 OSP 5000/5020 CONTROL LATHE SCHEMATICS A40003 ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...
Page 233 OSP 5000/5020 CONTROL MACHINING CENTER SCHEMATICS ELECTRICAL MAINTENANCE TRAINING MANUAL EL 501...

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