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WEIHONG NK280B Manual

Integrated cnc system
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NK280B Integrated CNC System
Manufacturers' Manual
1st Edition
(Exclusive to 3C industry)
Weihong Electronic Technology Co., Ltd.

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Summary of Contents for WEIHONG NK280B

  • Page 1 NK280B Integrated CNC System Manufacturers’ Manual 1st Edition (Exclusive to 3C industry) Weihong Electronic Technology Co., Ltd.
  • Page 2 The copyright of this manual belongs to Weihong Electronic Technology Co., Ltd. (hereinafter referred to as Weihong Company). This manual and any image, table, data or other information contained in this manual may not be reproduced, transferred, or translated without any prior written permission of Weihong Company.
  • Page 3 Preface About This manual This manual is intended for manufacturers. If you use Weihong CNC system for the first time, it is suggested to read through this manual. If not, however, you can search for the desired information via the contents.
  • Page 4 Contact Us You can contact us by the following info for technical support and pre-sales / after-sales service: Company Name: Weihong Electronic Technology Co., Ltd. Headquarters Address: No.1590, Huhang Rd., Fengxian, Shanghai, PRC 201400 Tel: +86-21-33587550 Fax: +86-21-33587519 Website: www.weihong.com.cn/en/ Revision History You can refer to the following table for the revision records of each edition.

  • Page 5: Table Of Contents

    Contents Getting Started.................... 5 Hardware Components..............................5 NK280B Operational Panel............................5 LED Display................................6 Main Function Access Buttons........................... 7 Alpha-numeric Keypad............................7 Buttons for Mode Switch............................. 9 ESTOP Switch................................9 Buttons for Auxiliary Functions..........................9 Override Switch..............................10 Buttons for Movement Control........................10 Operational Buttons............................. 11 Interface on the Back............................
  • Page 6 Modify Device Information..........................34 Verify Network Connection..........................35 Manage Program Files..............................35 Access Local Files..............................36 Access USB Program Files..........................36 Access NK280B Program Files from Computer..................36 Access Network Files............................37 Run Program Wizard............................37 Set Parameters................................38 Modify Parameters............................... 38 Back Up Parameters.............................39...
  • Page 7 Update Mirror Image..............................46 Install Software................................47 Update BOOT Interface...............................47 NK280B Parameter Reference..............48 Parameter for Axis Direction.............................48 Driver Parameters for Auto Adjustment.......................48 Parameters for Encoder.............................. 49 Parameters for Handwheel Operation........................50 Parameters for Workbench Range..........................50 Parameters for Prompt..............................50 Parameters for QEC..............................51 Parameters for Tool Compensation........................52...

  • Page 9: Getting Started

    Getting Started Getting Started Consisting of the hardware and the software, NK280B integrated CNC system can be used for tapping and drilling, engraving and milling, etc. Functions of NK280B integrated CNC system differ according to business line and application industry. Note that this manufacturers' manual is applicable to customers of WEIHONG 3C business line.

  • Page 10: Led Display

    Getting Started Alpha-numeric keypad Buttons for mode switching Emergency stop button (E-stop) Buttons for auxiliary functions Feed override switch Spindle override switch USB slot Buttons for movement control F1~F7 LED Display LED display shows different interactive operational interfaces, namely the GUIs. See figure below for outlines of the GUIs.

  • Page 11: Main Function Access Buttons

    Getting Started 8: It shows F1~F7 buttons on different GUIs. Shortcut Keys You can use shortcuts to execute actions. Press B to open Motion Trace interface. Press arrow keys (↑, ↓, ←, →) to select setting items. Main Function Access Buttons Button Remark It contains four child interfaces: Coor-Manual, Motion Trace, Cur.
  • Page 12 Getting Started How to use: • Directly press the button to enter the alphabet on the right-lower part. • Press Shift + alphabet button to enter the alphabet on the left-upper part. • In Manual mode, numeric buttons can be used as axis direction buttons. Only press the axis direction button, the axis moves at jogging speed;...

  • Page 13: Buttons For Mode Switch

    Buttons for Mode Switch See figure below for buttons. NK280B supports five modes: Auto, Jog, Handle, REF.Point and Stepping mode. When you want to control the machine movement by handwheel, select Handle mode. Default override for Handle and Stepping mode is X100.

  • Page 14: Override Switch

    Getting Started Enable or disable the lubricant port to turn on or off the lubricant. Enable or disable the port to make the tool magazine rotate in clockwise direction or stop the tool magazine. Enable or disable the port to make the tool magazine rotate in counter-clockwise direction or stop the tool magazine.

  • Page 15: Operational Buttons

    Getting Started Stop the spindle rotation. Start the spindle rotation in counter-clockwise direction. Start programming running. Resume programming running. In case of power interruption or emergency stop in machining, if the workpiece origin is secured, press the button to resume program running from the exact interrupted position.

  • Page 16: Basic Commissioning

    Adjust Axis Direction Return to machine origin. Return to Machine Origin Move machine tool and set related parameters. Modify Parameters NK280B Parameter Reference Set workpiece coordinate system (WCS), including Set Workpiece Coordinate workpiece offset and public offset. Commissioning finishes. Wait for machining.

  • Page 17: Execute Auto Adjustment

    Auto adjustment aims to automatically adjust servo gain for servo unit according to the current status of machine tool, and thus to optimize response. In NK280B, auto adjustment for X-axis, Y-axis and Z-axis will be executed separately. Auto adjustment will not be executed until the auto adjustment for last axis is done.
  • Page 18 Basic Commissioning Illustration Factory Setting System reservation (unalterable). 2. Rotate S2 to the needed value. Actual station addresses are as shown in the following table: S3 No.3 Station Address S3 No.3 Station Address Invalid 3. Restart the driver to make the settings effective. Set Station Address for Wise Driver The setting of station address for Wise driver is done through the panel in front of the driver.
  • Page 19 Basic Commissioning 2. Set station address No. It is suggested to set station address number in order, eg.: X-axis: 1; Y-axis: 2; Z-axis: 3. When the No. is 0, it means communication function is disabled. In the same control system, every station address No. is unique.

  • Page 20: Set Driver Parameters

    Basic Commissioning 3. Restart the driver. Set Driver Parameters To set driver parameters: 1. Press Parameter > =. Driver Param interface shows. 2. To modify driver parameter, pressing direction key ↑/↓/←/→ > Enter. Due to different driver brands, setting of parameter differs. Setting value of Driver Type in software shall prevail.

  • Page 21: Execute Auto Adjustment

    Basic Commissioning Keys Explanation You can only import files named ServoParam[number combination].dat. Export the set parameters file from driver to mobile devices like USB flash disk. Note: You can only name the exported files ServoParam[number combination].dat. Execute auto adjustment. Execute Auto Adjustment Different driver brands lead to different processes of auto adjustment.
  • Page 22 Basic Commissioning Setting Value Description Rigid System Suitable for mechanism with higher rigidity, like rigidity system. Belt Suitable for mechanism with lower rigidity, like belt. Ball Screw Suitable for mechanism with higher rigidity, like rigidity system, or linear servo motor. The explanation of mode is as illustrated in the following: Setting Value Description...
  • Page 23 Basic Commissioning Phenomenon Solution Turning failed. • Enlarge the range of positioning completion. (Adjust the value of parameter Pn522. • Adjust velocity loop gain. If machine tool vibrates, turn down the setting. Bad adjustment performance. • Ensure no alarm and warning occurs in driver. •...
  • Page 24 Basic Commissioning Setting Value Description 2：Positioning This mode emphasizes positioning. No changeable load exists in horizontal axis. It is suggested to use machine like ball screw to make friction. 3：Vertical axis Except these mentioned in positioning mode, this mode also compensates changeable load for vertical axis, which is convenient to restrict offset caused by positioning stability time.

  • Page 25: Check And Modify Port

    Basic Commissioning • When Mode is set as none-zero value, you can modify Rigidity and parameters in area ①; you cannot modify parameters in area ②. At this moment, parameters in area ① will alter, press F1 to refresh. • When Mode is set to 0, you cannot modify Rigidity, but you can modify parameters in area ①...

  • Page 26: Adjust Axis Direction

    Basic Commissioning 2. Do one of the following: Explanation These two keys are test-on and test-off. They are mainly for simulating hardware signal and conducting simulation test. Signal lamp in front of each port differs in test environment and actual environment.

  • Page 27: Operation

    Operation • Press Handle button to activate Handwheel mode, and use handwheel to move X-axis. • Press Jog button to activate Jog mode, and press X+ or X- button to move X-axis. 4. (Optional) If actual moving direction is opposite with setting value, change to the opposite value.

  • Page 28: Execute Warm-Up And Trial Run

    Operation Step Operation Reference 15(Optional) D uring machining, check current program Adjust Track View information, adjust motion track, return to fixed Return to Workpiece Origin point, workpiece origin and etc. Return to Fixed Point Execute Warm-up and Trial Run After power up, it is not recommended to start machining directly without knowing actual working conditions.

  • Page 29: Switch Software Configuration

    Operation Under Jog mode, press axis direction key, machine tool will move continuously until you releasing the key. Under Handwheel mode, you need to connects the machine to handwheel. Machine tool moves through rotating the hanwheel. Under Stepping mode, you can select fixed step length through pressing X1/ X10/ X100 or customize the stepping length through pressing XUD.

  • Page 30: Set Absolute Datum

    Operation Explanation Y-axis returns to machine origin Z-axis returns to machine origin All axes return to machine origin For safety, when returning to machine origin, it is suggested to firstly return Z-axis, then X- axis and Y-axis. If you press F7, the system will return Z-axis first and then return X-axis and Y-axis at the same time by default.

  • Page 31: Calibrate Tool

    Through calibrating tool, you can set tool offset and then define the specific location for workpiece coordinate system. NK280B offers two methods of calibrating tool. Execute Fixed Calibration During calibrating tool, the system will record the machine coordinate when tool nose touches the surface of tool sensor.

  • Page 32: Execute First And Exchange Calibration

    Operation Execute First and Exchange Calibration In essence, this mode is to compensate tool offset to workpiece offset. In General Double Z Software, you can choose to execute tool calibration for Z1-axis and Z2-axis separately or together.The setting in the operation of selecting Z-axis shall prevail.

  • Page 33: Set Wcs Origin By Centering

    Operation Set WCS Origin by Centering For regular-shaped workpiece, you can use Centering function to get workpiece origins of X-axis and Y-axis. It includes two types of centering: • Line Centering: Used to find the center point by two points on the workpiece. It is applicable to regular rectangular workpiece.

  • Page 34: Set Workpiece Offset

    Operation • F3: Clear current workpiece coordinates of both X-axis and Y-axis to zero. • F4: Clear current workpiece coordinate of Z1-axis to zero. • F5: Clear current workpiece coordinate of Z2-axis to zero. • F6: Clear current workpiece coordinate of all axes to zero. •...

  • Page 35: Manage Technics

    Yes: recover offset coordinate for X-axis, Y-axis and Z-axis at the same time. No: recover offset coordinate for X-axis and Y-axis. Manage Technics During machining, this operation is helpful to improve machining performance. NK280B motion control system offers several machining technics, you can set it in Technics Management interface.

  • Page 36: Compensate Screw Error

    Operation Make workpiece compensation as follows: • Dimension(J): 120.000 • Dimension(K): 80.000 • Direction, Order, Comp Mode: custom You can get workpiece whose dimension is 120mm*80mm. Compensate Screw Error It includes screw pitch error compensation and backlash compensation. To compensate screw error: 1.

  • Page 37: Compensate Tool

    2. To set corresponding values for tool compensation, press direction key ↑/↓/←/→ > Enter. Connect Network To realize mutual access between NK280B and the computer, you need to set network connection first. Make sure the computer and NK280B are within the same LAN.

  • Page 38: Manually Set Ip Address

    Press L to select automatic way, and press Enter. Modify Device Information If there are more than one NK280B, IP address and MAC address of each of them should not be the same. If the same, manually reset IP address and MAC address.

  • Page 39: Verify Network Connection

    Modify the device name to WinCE01, WinCE02, WinCE03... MAC address can be any hexadecimal data. Verify Network Connection After IP address setup of both NK280B and the computer, use ping command to verify the connection. To verify the connection between the host and the computer: 1.

  • Page 40: Access Local Files

    • .eng • .dxf Access Local Files You can access program files that are stored in D:\ directory of NK280B. To access the local files and edit the files: 1. Press Program > A to open Local interface. 2. Operate on program files.

  • Page 41: Access Network Files

    Security Policy, set attribute of network safety, and restart the computer. 2. Double click on file folder “Sharedocs”. 3. Upload files to nk280b download files from NK280B to the computer, or edit and delete the files. FTP: Access share docs in the host via the server. Make sure FTP server has been established in the computer.

  • Page 42: Set Parameters

    Operation • LaMeasure(L) For details, see NcStudio Function Manual. To run program wizard: 1. Press Program > C to open Prog Wizard interface. 2. Use shortcuts to choose wizard type as shown on the left. 3. Set parameters. 4. Press F3 to generate and save the program file. 5.

  • Page 43: Back Up Parameters

    Operation To check current parameter settings or modify parameters: 1. Press Parameter > A to open Machine Parameter interface. 2. (Optional) Choose your role. • F1: You are an operator or end-user of the machine tool. • F2: You are a manufacturer and need to access manufacturer's parameters. •...

  • Page 44: Simulate

    Operation 2. Operate on parameter settings. • F1: Restore the selected parameter settings. • F2: Export the selected parameter settings to USB flash disk. The file is formatted as by default. • F3: Import an external parameter settings file () into the current system. You need to restart the system to validate the parameter settings.

  • Page 45: Run Program

    There are four ways to run program. Execute Auto Run To start auto run: In movement control button area of NK280B operational panel, press Start. The system automatically execute the program until end or being interrupted by man. Execute Single Block Use single block function for better error diagnosis and troubleshooting.

  • Page 46: Adjust Track View

    Operation • Press State > C > F1. • Press State > A > F2. Start Line dialog box pops up. 3. Set parameters for selective machining, including “Start” position and “End” position. Shortcut keys: T for “File header”, S for block No. of start position, P for “File End” and Q for block No.

  • Page 47: Return To Workpiece Origin

    Operation Return to Workpiece Origin At any time during machining, you can return to the workpiece origin(also called WCS Zero). When machine tool returns to the workpiece origin, Z-axis returns to the safety height first, then X-axis and Y-axis return to the origin. The safety height for Z-axis is to aviod potential crash onto the workpiece surface during returning.

  • Page 48: Check Statistics Information

    Operation 2. Use arrow keys to select line, and press Insert button to open edit box. 3. Enter your NC code in edit box. 4. Press Auto button on operational panel to activate Auto mode. 5. Press F1~F7 or Enter to execute corresponding code. Execution of user-defined NC code must be in Auto mode.

  • Page 49: System Maintenance

    System Maintenance • Show Info: Show normal information only. • Show Warning: Show warnings only. • Show Error: Show errors only. • Show System: Show logs related with the system only. • Delete: Delete all logs on the interface. 2. (Optional) Press Shift+L to export all logs to USB flash disk. System Maintenance This part is designed to help users to register the software and the driver, update the software or FPGA, BOOT.

  • Page 50: Update Fpga

    2. Press arrow keys to select the device, and press Enter to start updating. Delete Temporary Files Too much temporary files slow down system running. Deleting temporary files from time to time helps to release memory of NK280B host, and improve the performance of the system. To delete temporary files: Press System >...

  • Page 51: Install Software

    Prepare a USB flash disk with the mirror image file named “NK280B_NK_Rx.x.x.nb0”. To update the mirror image: 1. Insert the USB flash disk with mirror image file into NK280B host. 2. Power on NK280B and simultaneously press M key several times .

  • Page 52: Nk280B Parameter Reference

    NK280B Parameter Reference Backup Export the software which has been backed up to \Backup file folder in root directory of USB flash disk. Restore Restore the system with software in \Backup file folder. Delete Parameters When updating the software to the latest version, use the button to delete parameter settings of the last version.

  • Page 53: Parameters For Encoder

    NK280B Parameter Reference Parameter Name Description Pn212 Number of Encoder Output Pulses Table 5: Wise Driver Parameters Related with Auto Adjustment Parameter Name Description Pr000 Rotational Direction Setup It is for setting rotation direction for motor. • 0000: for forward commands, the motor rotates towards CW.

  • Page 54: Parameters For Handwheel Operation

    NK280B Parameter Reference Table 6: Parameters Related with Encoder Function Parameter Name Description Encoder Feedback Whether to use the encoder feedback function or not. Encoder Type 0: Incremental encoder; 1: Absolute encoder. Encoder Digit The digit number of the encoder.

  • Page 55: Parameters For Qec

    NK280B Parameter Reference Table 9: Parameters Related with Prompt Parameter Name Description Enable Workpiece Compensation If the parameter is set to Yes，the system will ask you to confirm whether to continue machining with workpiece compensation enabled when you start machining.

  • Page 56: Parameters For Tool Compensation

    NK280B Parameter Reference Parameter Name Description Quadrant Compensation Delay The spikes may not appear exactly at the four quadrant positions due to mechanical properties of machine tool, but a little distance away from the quadrant points. Estimate the time to travel this distance and then set the time as the value of this parameter.

  • Page 57: Parameters For Actions After Program End

    NK280B Parameter Reference Parameter Name Description Max Cali Tolerance During several times of tool calibration, the maximum tolerance of calibration results. Tool Sensor Thickness The distance from Tool Sensor surface to WCS Z0. It can be used to automatically calculate WCS Z0 when cutter touches the Tool Sensor.
  • Page 58 Weihong Electronic Technology Co., Ltd. (hereinafter referred to as Weihong Company). By installing, copying, or otherwise using the Software Product, you agree to be bound by the terms and conditions of this license. Unless otherwise stated in this agreement, you shall not use, copy, revise, rent, or transfer the Software product or any part of the Software Product for any other purposes.
  • Page 59 Whether you follow other terms in this agreement or not, Weihong Company, as well as its agents and sales staff, will not be responsible for any profits loss, availability loss, business break-off or any forms of...

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