NSD. This product is designed to be used under the industrial environments categorized in Class A device.
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[ Installation Precautions ] CAUTION - Use the programmable controller in an environment that meets the general specifications contained in the CPU User's Manual. Failure to do so may result in electrical shock, fire, malfunction, product damage, or deterioration of performance. - Install the module while pressing the mounting lever at the bottom of module, verifying that the module's mounting protuberance is properly inserted into the base unit's mounting hole.
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[ Start-up and Maintenance Precautions ] WARNING - Be sure to shut off all power before cleaning this module or tightening screws. Failure to do so may result in failure or malfunction of this module. Loose screws can cause drops of the screws, short circuit or malfunction. Overt-tightening screws may damage the screws and/or the module, This can cause drops, short circuit or malfunction.
INTRODUCTION Thank you for purchasing the VS-QA262B module. Always read through this manual, and fully comprehend the functions and performance of VS-QA262B before starting use to ensure correct usage of this product. Please submit this manual to the end user. TRADEMARKS MELSEC is the trademark or registered trademark of Mitsubishi Electric Corporation.
REVISION HISTORY The document No. appears at the upper right of this manual's cover page. Document No. Date Revision Description ZEF006083300 28, Jan., 2022 1st Edition Japanese document: ZEF006081600 ZEF006083301 26, Dec., 2022 2nd Edition Japanese document: ZEF006081601...
1. OVERVIEW 1. OVERVIEW This user's manual contains the specifications, and operation/programming procedures for VS-QA262B-LC (*1) which is to be used in combination with a Mitsubishi Electric corp. MELSEC-Q Series programmable controller. VS-QA262B combines a CYLNUC Cylinder, an actuating Cylinder unit containing a built-in linear position sensor, to detect the position of the machine being controlled.
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Current Position Detection Function VS-QA262B's current position detection function detects the current position using an ABSOCODER sensor. Conventionally, this was detected using an incremental format encoder in conjunction with a counter unit. (1) Operation Example of System with Incremental Format Encoder and Counter Incremental format encoder...
1.2 Definitions (1) ABSOCODER ABSOCODER is the generic name given to the NSD-developed position sensor which detects rotational/linear displacement, speed, and acceleration, using an absolute position detection method with a digital (or analog) output. ABSOCODER consists of two main components:...
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(3) Semi-absolute format In the semi-absolute format, “standard pitch” of the sensor rod is detected in absolute value. (Absolute detection range) Furthermore, the pitch is counted by the software. 1 pitch 2 pitches 3 pitches Absolute detection pitch Absolute detection pitch Absolute detection pitch (standard pitch) (standard pitch)
2. SYSTEM CONFIGURATION 2. SYSTEM CONFIGURATION 2.1 Overall Configuration The overall configuration of the Mitsubishi Electric corp. MELSEC-Q Series using VS-QA262B is shown below. Q××CPU I/O Module Main base unit(Q3[ ]B) Refer to the Remarks below. Extension cable(QC[ ]B) VS-QA262B ABSOCODER cable Extension base unit(Q6[ ]B) (see Appendix 4.)
VS-QA262B can be used in the following system. (1) Applicable CPU module Refer to NSD web site for CPU module models with which VS-QA262B can be used. (2) Number of mountable modules Pay attention to the power supply capacity before mounting modules.
3. VS-QA262B SPECIFICATIONS 3. VS-QA262B SPECIFICATIONS 3.1 General Specifications Shown below are the VS-QA262B specifications. About the ABSOCODER sensor specifications, refer to Appendix 4, "ABSOCODER SENSOR SPECIFICATIONS". Table 3.1 General Specifications Items Specifications Operating ambient temperature 0 to 55°C Storage ambient temperature -25 to 75°C Operating ambient humidity 5 to 95%RH...
3.2 Performance Specifications Table 3.2 Performance Specifications Items Specifications Remarks Number of position detection axes Position detection method Semi-absolute format CYLNUC Cylinder, VLS-12.8: 1.5625μm Resolution IRS-51.2P: 6.25μm Standard pitch x number of pitches Total number of divisions (8192 divisions (2 ) x max.
3.4 Input/Output Signals between VS-QA262B and PLC CPU Below shows the input and output signals to the PLC CPU. (1) In the table below, the input/output signals are classified as follows: (a) Device X: Input signals from VS-QA262B to PLC CPU. (b) Device Y: Output signals from PLC CPU to VS-QA262B.
3.4.1 Input/output signal details The ON/OFF timing and other conditions for signal input/output between VS-QA262B and PLC CPU are explained below. (1) Unit ready (X0): This signal comes OFF when a watchdog timer error is detected by VS-QA262B’s self-diagnosis function. When ‘X0’...
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(4) Error detection (X5 [X9]): This signal comes ON when any of the ‘X4 [X8]’ signal comes ON, or when any of the errors shown section 6.1 occur. ‘X5 [X9]’ will go OFF after the cause of the error has been corrected, and the ‘Y1C’ (error reset signal) has been turned ON by the sequence program.
3.5 Buffer Memory VS-QA262B contains a buffer memory which is used for data communication with the PLC CPU. The buffer memory configuration and content is shown below. Data readout of all areas can be executed by the sequence program. Buffer memory space is provided for 2 axes (same content). Addresses 0 to 702 are for Axis 1, and addresses 1000 to 1702 are for Axis 2.
3.5.2 Current position value storage area The machine’s current position is detected by a semi-absolute method, and that position is stored in this area as a sensor binary value. Two data areas for the current position value, depending on the direction in which the current position value increases, are as follows: Current Position Value increasing in CW Direction (Address 2, 3 [1002, 1003]): The current position value will increase when the rod (or scale in the case of IRS-51.2P) travels in...
3.5.5 Current position setting value storage area This is the area where the setting value used for current position value setting by CPU output (Y13 [Y16]) is stored. (Address 690, 691 [1690, 1691]) This area can be written at any time by the sequence program. ‘0’...
4. HANDLING and WIRING 4 HANDLING and WIRING This section explains how to unpack and connect VS-QA262B. 4.1 VS-QA262B Handling Precautions The following precautions should be observed when handling VS-QA262B. (1) As VS-QA262B is constructed from a resin-based material, it should not be dropped or subjected to severe shocks.
3) When the cable port is exposed, a shielding plate should be installed as shown in the right figure. Contact your NSD representative for details of the installation conditions and precautions for ABSOCODER sensor. 4.3.2 Precautions for connecting ABSOCODER sensors (1) Connection should be made using the ABSOCODER cable, with the connector being securely tightened.
4.4 Name of Parts The illustration below shows the nomenclature of VS-QA262B. Operation status display area Axis display selection switch Sensor connector (Axis 1) Sensor connector (Axis 2) Functions of operation status display area Lower: "5" LED (Axis 1 Error LED) Upper: 0 to F LED Switches on or blinks when an Axis 1 lower: 0 to 4 LED...
5. CURRENT POSITION DETECTION FUNCTION 5. CURRENT POSITION DETECTION FUNCTION 5.1 Function Description 5.1.1 Current position detection function VS-QA262B's current position detection function detects the current position using an ABSOCODER sensor. Conventionally, this was detected using an incremental format encoder in conjunction with a counter unit.
5.1.2 Current position setting function "Current position setting" is a function to change VS-QA262B's current position value to a value corresponding to the current and actual machine position. The Current Position Value in CW Direction (Address 2, 3 [1002, 1003]) or the Current Position Value in CCW Direction (Address 4, 5 [1004, 1005]) in buffer memory will be changed to a pre-entered Current Position Setting Value (Address 690, 691 [1690, 1691]).
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Cautions concerning when power has been CAUTION turned OFF or an error has occurred VS-QA262B-LC detects the machine position by a semi-absolute method. If the sensor rod position has shifted by more than half the absolute detection pitch in any of the following situations, the module will not be able to obtain a correct current position value.
5.2 Pre-Operation Setting Sequence This section explains the setting sequence for the current position detection function. Start Installation on base unit: Install VS-QA262B on the base unit. External connections: Refer to Section 4.2 and 4.3. Connect the ABSOCODER sensor to VS-QA262B. Programming: Create a sequence program to read out the current position...
5.3 Programming This section explains how to create the sequence program using VS-QA262B. 5.3.1 Program creation precautions (1) VS-QA262B is an intelligent function module that occupies thirty two I/O points. (2) In response to ‘FROM/TO’ instructions, the first input/output No. of VS-QA262B’s slot will be designated.
5.3.2 Program for current position monitor display A program example for the current position monitor display is given below. This program example is for Axis 1. Axis 2 programs can be generated in the same way. Conditions The following signal assignments are used to control VS-QA262B. VS-QA262B ‘online’...
5.3.3 Program for error code readout and reset A program example for the error code readout and error reset operation which is used when a VS-QA262B 'error detection' occurs is given below. This program example is for Axis 1. Axis 2 programs can be generated in the same way. Conditions The following signal assignments are used to control VS-QA262B.
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(2) Example of program using an intelligent function device (U[ ]¥G[ ]). │ X0032 │ 0├─┤ ├──────────────────────────────────────────────────────────────(Y0010 )┤ │ VS-QA262B PLC read │ │ ‘onli │ │ ne’ com │ │ mand │ │ │ │ X0001 X0004 │ Sensor error monitor output 2├─┤...
5.3.4 Remote I/O station programming The master station (CPU) programming which is required when VS-QA262B is installed in a remote station is explained below. This program example is for Axis 1. Axis 2 programs can be generated in the same way. (1)System configuration Remote master station (Station No.0) QCPU...
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(2) Program example │ SB0047 │ 0├─┤ ├────────────────────────────────────────────────────────(T0 )┤ │ Host bat 1ms time │ │ on pass │ │ status │ │ │ │ │ │ SB0049 │ 5├─┤ ├────────────────────────────────────────────────────────(T1 )┤ │ Host dat 1ms time │ │ a link s │...
6. TROUBLESHOOTING 6. TROUBLESHOOTING VS-QA262B operation errors and troubleshooting procedures are described in this section. 6.1 Error Code List VS-QA262B error codes are described below. When VS-QA262B detects an error, the corresponding error code is stored in Address 7 [1007] of the buffer memory.
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(1) Each time an error occurs, the previous error code stored in the buffer memory will be deleted, and replaced by the new error code. (2) The error status will be automatically cleared when the PLC CPU reset status is canceled. (3) The error code stored in the buffer memory will not be cleared (returned to '0') simply by correcting the cause of the error.
6.2 Troubleshooting Flowchart The VS-QA262B troubleshooting procedure is explained below. For CPU module related problems, consult the manual for the CPU module in question. Error Occurs If the signal doesn’t go ON even when the PLC CPU is reset, a VS-QA262B hardware problem is likely.
6.3 Flowchart when Current Position Setting is Impossible Current position setting can not be executed. Note the error code, and Does an error status check the causes. exist at VS-QA262B? ‘Online’ status Designate the ‘online’ status. established? Turn Y13 [Y16] ON Current Position Setting Is Y13 [Y16] turned ON Command Y13 [Y16] will be...
6.4 Flowchart when the ABSOCODER Sensor’s Current Position Value doesn't Change The ABSOCODER sensor’s current position value doesn’t change. Does an error status Note the error code, and check the exist at VS-QA262B? causes. Does the ABSOCODER Travel the ABSOCODER sensor. sensor travel? Refer to Section 4.2 and Appendix Is the ABSOCODER...
APPENDIX APPENDIX 1 CE MARKING VS-QA262B series conforms to EMC directive, but stands outside scope of the low voltage directive. (1) EMC Directives It is necessary to do CE marking in the customer’s responsibility in the state of a final product. Confirm EMC compliance of the machine and the entire device by customer because EMC changes configuration of the control panel, wiring, and layout.
APPENDIX 2 UL STANDARD The VS-QA262B Series corresponds to the UL standard. Read this page carefully and use the VS-QA262B Series by following the described items. (1) Installation - Install inside the control cabinet. - For use in pollution degree 2 environment. - Within the surrounding air temperature 0℃...
APPENDIX 3 KC MARK Notification for users 사용자안내문 This product complied with the relevant Korean Safety Standard for use in the industrial environment. Thus, radio frequency interference could occur if it is used in a domestic environment. 이 기기는 업무용 환경에서 사용할 목적으로 적합성평가를 받은 기기로서 가정용...
Appendix 4.2.2 Cable length restrictions There is a limitation in extendable length of the ABSCODER cable. Cable model 3P-S 3P-RBT Maximum sensor 100m cable length REMARKS Contact your NSD representative when the ABSOCODER cable combines different types of cables.
Appendix 4.2.3 ABSOCODER Cable Dimensions Units: mm (1) 3P-S-0102-[L] / 3P-RBT-0102-[L] NOTE: [L] is given in terms of meter. (2) 3P-RBT-0103-[L] NOTE: [L] is given in terms of meter. (3) 3P-S-0144-[L] / 3P-RBT-0144-[L] NOTE: [L] is given in terms of meter.
APPENDIX 6 ABSOCODER SENSOR CHECK LIST ● Applicable ABSOCODER sensor models CSA,SBA,SBB,SBH Contact our sales representative for VLS-12.8 and IRS-51.2. ● Connection configuration ● Connector appearance and pin position VS-QA262B CYLNUC Cylinder Extension sensor cable View A View B Checks at Point C should be carried out with Point A (or Point B) connected. ●...
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*1: If checks are done at Point C, the measurement value is [Standard coil resistance + extension sensor cable resistance (cable length (m) x 0.2 (Ω))]. The resistance value of the NSD special cable is 0.2Ω/m (loop resistance). Consider resistance variations due to temperature, which, relative to the standard temperature C), increases 0.4% when the temperature rises 1...
APPENDIX 7 I/O SIGNALS and BUFFER MEMORY FUNCTION LIST ◯: enabled ×: disabled Signal VS-QA262B (online/offline) Online Offline Remarks type Device No., address, and name Unit ready ○ ○ (VS-QA262B detection item) VS-QA262B operation status Signal (online/offline) inputs to Sensor error detection ○...
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