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CHAPTER 11 TROUBLESHOOTING

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roubleshoot

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11.5

Troubleshooting by Symptom

Troubleshooting methods are described by symptom. Perform these troubleshooting actions when cyclic and/or
transient transmissions are not possible with the target station even though no error is detected in the head module.
If an error has occurred in an intelligent function module installed with the head module, identify the cause of the error
by GX Works2. (



Page 83, Section 11.2)

• Before starting the troubleshooting by symptom, check that the POWER LED of the power supply module is on.

For troubleshooting of the power supply module, refer to



MELSEC-L CPU Module User's Manual (Hardware

Design, Maintenance and Inspection).

• When the troubleshooting by symptom cannot solve the problem: Perform the unit test on the head module to

check for a hardware error. (



Page 44, Section 6.4)

11.5.1

Cyclic transmission cannot be performed.

When cyclic data are not delivered to other stations, or when cyclic data from the Motion controller cannot be received,
use the following troubleshooting methods.

If the above actions do not solve the problem, check if there is any error in the refresh device setting for the CPU
module configured by the Motion controller. (



Programming Manual (COMMON) for the Motion controller used)

11.5.2

Transient transmission cannot be performed.

If transient transmissions are not executable with the target station, check that the station numbers set with the rotary
switches of the head module are set correctly. (



Page 20, CHAPTER 2)

Check item

Action

Is the REM. LED of the head module on?

If the REM.LED is flashing or off, perform the troubleshooting by the LEDs. (



Page 89, Section 11.4)

Are the I/O assignment settings of PLC parameter correct?

Set the I/O assignment correctly. (



Page 63, Section 7.1 (6))

Is the switch of the head module set to "RUN"?

Set the switch of the head module to "RUN".

Is the RUN LED of the head module on?

If the RUN LED is flashing or off, perform the troubleshooting by the LEDs. (



Page 89, Section 11.4)

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Summary of Contents for MELSEC-L SSCNETIII/H

Page 1: ...MELSEC L SSCNET H Head Module User s Manual LJ72MS15 ...

Page 2: ......

Page 3: ... forward reverse rotations or upper lower limit positioning must be configured external to the programmable controller 2 When the programmable controller detects an abnormal condition it stops the operation and all outputs are Turned off if the overcurrent or overvoltage protection of the power supply module is activated Held or turned off according to the parameter setting if the self diagnostic ...

Page 4: ...running programmable controller such as program modification of the Motion controller or operating status change read relevant manuals carefully and ensure the safety before the operation Especially when a remote programmable controller is controlled by an external device immediate action cannot be taken if a problem occurs in the programmable controller due to a communication failure To prevent t...

Page 5: ...duct To interconnect modules engage the respective connectors and securely lock the module joint levers until they click Incorrect interconnection may cause malfunction failure or drop of the module Do not directly touch any conductive parts and electronic components of the module Doing so can cause malfunction or failure of the module WARNING Shut off the external power supply all phases used in ...

Page 6: ...y connect the cable Incorrect wiring connecting the cable to an incorrect interface may cause failure of the module and external device Tighten the terminal block screws within the specified torque range Undertightening can cause short circuit fire or malfunction Overtightening can damage the screw and or module resulting in drop short circuit fire or malfunction When disconnecting the cable from ...

Page 7: ...h as a cellular phone or PHS Personal Handy phone System more than 25cm away in all directions from the programmable controller Failure to do so may cause malfunction Shut off the external power supply all phases used in the system before mounting or removing a module Failure to do so may cause the module to fail or malfunction Tighten the terminal block screws within the specified torque range Un...

Page 8: ...e of the PRODUCT in Nuclear Power Plants and any other power plants operated by Power companies and or any other cases in which the public could be affected if any problem or fault occurs in the PRODUCT Railway companies or Public service purposes and or any other cases in which establishment of a special quality assurance system is required by the Purchaser or End User Aircraft or Aerospace Medic...

Page 9: ...em configuration parameter setting functions and troubleshooting of the SSCNET III H head module hereafter abbreviated as head module Before using this product please read this manual and the relevant manuals carefully and develop familiarity with the functions and performance of the MELSEC L series programmable controller to handle the product correctly ...

Page 10: ...ontroller Q172DLX servo external signal interface module Q173DPX manual pulse generator interface module servo amplifiers and SSCNET III cables system maintenance and inspection and troubleshooting Q173D S CPU Q172D S CPU Motion controller Programming Manual COMMON IB 0300134 1XB928 Multiple CPU system configuration performance specifications common parameters auxiliary and applied functions and e...

Page 11: ...9 Memo ...

Page 12: ...ule System Configuration 31 5 2 Applicable Systems 32 CHAPTER 6 INSTALLATION AND WIRING 35 6 1 Wiring Environment and Installation Position 35 6 1 1 Installation environment 35 6 1 2 Installation position 35 6 2 Installation 36 6 2 1 Connecting modules 37 6 2 2 Mounting the modules on a DIN rail 39 6 2 3 Changing modules on a DIN rail 42 6 3 Wiring to the Power Supply Modules 44 6 4 Testing the He...

Page 13: ... Appendix 1 Forced On Off for External I O 101 Appendix 2 Remote Operation 105 Appendix 3 END Cover 107 Appendix 4 Link Special Relay SB List 109 Appendix 5 Link Special Register SW List 111 Appendix 6 Special Relay SM List 113 Appendix 7 Special Register SD List 115 Appendix 8 EMC and Low Voltage Directives 124 Appendix 8 1 Requirements for compliance with the EMC Directive 124 Appendix 8 2 Requi...

Page 14: ...is used for items in the menu bar and the project window shows operating procedures shows reference manuals shows notes that requires attention shows mouse operations 1 shows reference pages shows setting or operating examples Ex shows useful information A window selected in the view selection area is displayed View selection area Online Write to PLC Select Online on the menu bar and then select W...

Page 15: ...register SW Word data that indicates the operating status and data link status of a head module Link special relay SB Bit data that indicates the operating status and data link status of a head module Motion controller A generic term for the Q173DSCPU Q172DSCPU Motion CPU module and Q170MSCPU Motion controller MT Developer2 The product name of the MELSOFT programming software package for the Motio...

Page 16: ... PACKING LIST The following items are included in the package of this product Before use check that all the items are included LJ72MS15 Head module LJ72GF15 T2 END cover L6EC Safety Guidelines IB 0800494 ...

Page 17: ...15 Memo ...

Page 18: ...figured This leads to wire saving and space saving of the system 1 Cyclic transmission The I O signals of a module connected to the head module can operate as those of the Motion controller Page 65 CHAPTER 8 For example when the output Y of the Motion controller is turned on the output Y of a module connected to the head module turns on RX RY RWw RWr RX RY RWw RWr X Y Y X Motion controller Head mo...

Page 19: ...ller sends requests to the head module with dedicated instructions Programming Manual Motion SFC for the Motion controller used 3 Setting parameters Parameters for the head module can be set using software GX Works2 Creating parameter setting programs is not required Page 53 CHAPTER 7 1234H 1234H Device Buffer memory Intelligent function module Motion controller Head module Command RST M0 RFROM W0...

Page 20: ...cs GX Works2 and MT Developer2 facilitate diagnosing the head module and connected modules Page 77 CHAPTER 9 Page 83 Section 11 2 a System Monitor GX Works2 b SSCNET III Communication Condition Monitor MT Developer2 ...

Page 21: ...19 CHAPTER 1 HEAD MODULE 1 Memo ...

Page 22: ...erating normally Flashing Has not been reset after writing to PLC Or forced input output registration is in progress Off The initial data are being processed An error has occurred in the own station SSCNET III H disconnection Offline mode ERR LED Indicates the error status of the head module The error details can be checked with PLC diagnostics of GX Works2 Page 83 Section 11 2 On A head module fa...

Page 23: ... Stops the data transfer between the link devices of the head module cyclic data from the Motion controller and head module devices Stops the transfer while performing cyclic transmission with the Motion controller and stops the output Stopping the data transfer stops sending the input output information of modules connected to the head module to the Motion controller The STOP switch is used when ...

Page 24: ...e head module so that the station number does not overlap with other head modules station numbers or servo amplifiers axis numbers in the same system Setting the same number causes a stop error in the Motion controller 7 USB connector A connector for connecting to GX Works2 Connector type miniB 8 Module joint levers Levers for connecting modules each other 9 DIN rail hook A hook used to mount the ...

Page 25: ...opper If you open the cover until it clicks it will stay open LED indication during a unit test The RUN LED turns on and the REM LED flashes while a unit test is performed For the procedure of a unit test refer to Page 44 Section 6 4 Pull the cover so that the stopper will be set easily Stopper Open the cover Open the cover Open the cover On Flashing ...

Page 26: ... the equipment is used Pollution level 2 is when only non conductive pollution occurs A temporary conductivity caused by condensing must be expected occasionally To make the programmable controller comply with the EMC and Low Voltage Directives refer to Page 124 Appendix 8 Item Specifications Operating ambient temperature 0 to 55 Storage ambient temperature 25 to 75 Operating ambient humidity 5 to...

Page 27: ...station Connection cable SSCNET III cable optical fiber cable User s manual for the Motion controller used Maximum station to station distance POF type 20m H PCF type 50m Connection method Daisy chain connection Regenerative relay system with a servo amplifier Transmission system Full duplex communication because of the separation of the channels for sending and receiving Encoding method 8B10B scr...

Page 28: ...om X0 Y 8192 points 1KB Number of usable points on programs RY0 is assigned from Y0 SB 8192 points 1KB SW 8192 points 16KB SM 2048 points 256 bytes SD 2048 points 4KB W 8192 points 16KB RWw0 is assigned from W0 RWr0 is assigned from W1000 U G Devices that directly access the buffer memory of intelligent function modules User s manual for the intelligent function module used Number of writes to the...

Page 29: ...nction module Page 63 Section 7 1 6 Diagnostics System monitor Diagnostics of the head module and connected modules can be performed using GX Works2 Page 83 Section 11 2 SSCNET III Communication Condition Monitor The connection status of whole SSCNET III H can be checked using MT Developer2 Page 77 CHAPTER 9 System error history The history of errors that occurred in the head module and intelligen...

Page 30: ...28 Memo ...

Page 31: ...44 Section 6 4 Page 46 Section 6 5 Page 53 CHAPTER 7 Page 65 CHAPTER 8 Page 20 CHAPTER 2 Page 65 CHAPTER 8 Checkbox Consider the system configuration and link device assignment System consideration Installation Install the power supply module head module I O module s intelligent function module s and an END cover Unit test Perform unit tests on the head module and intelligent function module s Con...

Page 32: ...is no communication with the Motion controller it takes approximately 5 seconds to change to the RUN status Page 77 CHAPTER 9 Network diagnostics Check that communications can be performed normally with the SSCNET III H communication status monitor ...

Page 33: ...dule System Configuration The following shows system configuration using a head module For power supply modules refer to the following MELSEC L CPU Module User s Manual Hardware Design Maintenance and Inspection For I O modules and intelligent function modules refer to the manual for the module used The MELSEC L series CPU module cannot be connected to a system using a head module Power supply mod...

Page 34: ...o modules For the occupied space refer to the user s manual for the module used before configuring a system Some modules have restrictions on the number of modules The following table shows the relevant models and the number of modules 2 Modules unit that cannot be connected The CPU module and the following module unit cannot be connected to the head module Module Model name Number of modules Head...

Page 35: ...re required for setting and diagnosing the head module GX Developer is not available 5 Precautions for system configuration a Rated output current 5VDC Configure a system so that the total current consumption may not exceed 5VDC rated output current of the power supply module For specifications of the power supply module refer to the following MELSEC L CPU Module User s Manual Hardware Design Main...

Page 36: ...34 Memo ...

Page 37: ...temperature is outside the range of 0 to 55 Ambient humidity is outside the range of 5 to 95 RH Condensation occurs due to rapid temperature change Corrosive gas or combustible gas is present Conductive powder such as dust and iron powder oil mist salinity or organic solvent is filled The programmable controller is exposed to direct sunlight A strong electric field or strong magnetic field is gene...

Page 38: ...ouch any conductive parts and electronic components of the module Doing so can cause malfunction or failure of the module The number of times the module can be connected disconnected is limited to 50 times In accordance with IEC 61131 2 Exceeding this limit may cause malfunction Do not drop or apply strong shock to the module case Do not remove the printed circuit board of the module from the case...

Page 39: ...modules 1 To release the module joint levers located at the top and bottom of the head module 2 Slide the lever toward the front side of the module until it clicks To release the lever pull the projection 1 of the lever 3 Insert the connector of the power supply module into that of the head module so that they are securely engaged 4 To lock the module joint levers 5 Slide the lever toward the back...

Page 40: ...ay cause malfunction failure or drop of the module To slide the lever use the projection of the lever Sliding the lever with a part other than the projection may cause a difficulty of sliding The metal on the back of the module may be at a high temperature immediately after the module is powered off Take care to prevent a burn at module disconnection ...

Page 41: ...le according to the manual of the DIN rail stopper used 1 Mounting procedure 1 Pull down all DIN rail hooks on the back of the modules The levers should be pulled down until you hear them click 2 Hang the upper tabs of the modules on a DIN rail and push the modules in position 3 Lock the DIN rail hooks to the DIN rail to secure the modules in position Push each hook up until you hear it click If t...

Page 42: ...lide the DIN rail stopper up to the left side of the modules 8 Hold the DIN rail stopper in the direction opposite to the arrow on the stopper and tighten the screw with a screw driver 9 Attach a DIN rail stopper on the right of the modules with the same procedure Install the stopper upside down for the right side Hitch the hook to bottom of the DIN rail Hitch the hook to top of the DIN rail DIN r...

Page 43: ... reversing the above procedure 3 Applicable DIN rail model IEC 60715 TH35 7 5Fe TH35 7 5Al TH35 15Fe 4 DIN rail stopper Use a stopper that is attachable to the DIN rail 5 Interval between DIN rail mounting screws To ensure the strength of a DIN rail tighten DIN rail mounting screws obtained by user within 30mm away from the both edges of the DIN rail and at 200mm interval between the screws 35mm P...

Page 44: ... the modules Pull down the DIN rail hooks on the module to be changed and the module on its right until you hear them click If the hooks are beyond the reach use a tool such as a screw driver 3 Release the module joint levers on the modules Slide the module joint levers on the module to be changed and on the module on the right of the changed module toward the front side of the module until they c...

Page 45: ... of the DIN rail when mounting them Doing so may damage the metal part located on the back of the module 6 Slide the modules and plug the connectors 7 Lock the module joint levers Slide the levers toward the back side of the module until they click 8 Lock the DIN rail hooks and attach the DIN rail stopper Page 39 Section 6 2 2 ...

Page 46: ...he Head Module Before Wiring 1 Unit test Run a unit test to check if there is any abnormality in the head module hardware 1 Connect the modules as shown left Connect the head module to GX Works2 2 Set the PLC parameter in GX Works2 as shown left Project window Parameter PLC Parameter Communication Head Setting 3 Write the PLC parameter set in GX Works2 to the head module Online Write to PLC Select...

Page 47: ... the test is completed When completed The REM LED turns off while the ERR LED and the L ERR LED remain off When failed The REM LED turns off and either the ERR LED or the L ERR LED turns on or flashes If the test fails replace the SSCNET III cable and conduct the test again If the test fails again it may be due to a hardware failure in the head module Please consult your local Mitsubishi represent...

Page 48: ...cable 1 Power off the target device to be connected and the head module 2 Connect an SSCNET III cable which is to be connected to the Motion controller the first axis or the preceding station to CNA Connect the SSCNET III cable to CNA holding the knob of the cable connector Securely insert the cable until it clicks 3 Connect an SSCNET III cable which is to be connected to the second axis or the fo...

Page 49: ...IRING 6 6 5 Wiring to the Head Module 6 5 1 Wiring b Disconnecting the cable 1 Power off the external devices connected to the head module and the head module 2 Disconnect the SSCNET III cable holding the knob of the cable connector ...

Page 50: ...e provided employ 2 Shared grounding shown below Use thick cables up to 2 Bring the grounding point close to the programmable controller as much as possible so that the ground cable can be shortened 3 Joint grounding Not allowed Grounding Programmable controller Programmable controller Programmable controller Another equipment Another equipment Another equipment Grounding 1 Independent grounding B...

Page 51: ...ng the SSCNET III cable When connecting the SSCNET III cable to the head module connect the SSCNET III cable to CNA and CNB of the head module holding the knob of the SSCNET III cable connector Securely insert the cable until it clicks If the end faces of the SSCNET III cable are covered with dirt optical transmission is interrupted and a malfunction may occurs Wipe the dirt with a nonwoven fabric...

Page 52: ...ion If tension is exerted on the SSCNET III cable transmission loss increases because external forces concentrate on a fixed part of the SSCNET III cable or where the SSCNET III connectors are connected At worst the SSCNET III cable breaks or the SSCNET III connectors are damaged When laying the cable handle without straining tension c Lateral pressure If lateral pressure is exerted on the SSCNET ...

Page 53: ...ant Acetate cloth adhesive tape 570F Teraoka Seisakusho co Ltd be used 5 Precautions for wiring Use an SSCNET III dedicated cable The SSCNET III cable has a limit on the cable bend radius Check the limit of the cable used Place the SSCNET III cable in a duct or fix the cable with a band If not the dangling cable may swing or inadvertently be pulled resulting in damage to a module or cables or malf...

Page 54: ...52 Memo ...

Page 55: ... the setting screens by the following operation using GX Works2 Project window Parameter PLC Parameter Set parameters for the entire network including the head module the number of servo amplifiers and the link device assignment settings to the Motion controller For details refer to the following Programming Manual COMMON for the Motion controller used Double click ...

Page 56: ...and comment of the head module 0000H 0001H Page 56 Section 7 1 2 PLC System Set parameters for a system including the head module 1002H Page 57 Section 7 1 3 PLC RAS Set parameters for the RAS function 300AH Page 58 Section 7 1 4 Operation Setting Set parameters to transfer data stored in the following head module devices as cyclic data Link special relay SB Link special register SW Special relay ...

Page 57: ...nline Offline Self test Default Online Hold PLC diagnostic error history and system error history by POWER OFF RESET Store in Flash ROM Select whether to hold PLC diagnostic results and system error history data after the head module is powered off or is reset Clearing the checkbox will delete data displayed in the PLC diagnostics window and the Error History window when the head module is powered...

Page 58: ...arameter PLC Parameter PLC Name The following table shows setting items Item Description Setting range Label Enter the label name or application of the head module Up to 10 characters Default Blank Comment Enter the comment of the head module Up to 64 characters Default Blank ...

Page 59: ... Project window Parameter PLC Parameter PLC System The following table shows setting items Items other than Remote Reset cannot be set to the head module Item Description Setting range Remote reset Allow Select whether to allow GX Works2 to perform remote reset to the head module Selected not selected Default Selected ...

Page 60: ...tory Collection Intelligent Function Module cannot be set to the head module Item Description Setting range Module Error History Collection Intelligent Function Module Collection of intelligent function module error histories is valid Select whether to collect errors occurred in an intelligent function module with the head module Selected not selected Default Selected ...

Page 61: ...in the following head module devices as cyclic data Link special relay SB Link special register SW Special relay SM Special register SD Link register W Head module In Operation Setting the following part is configured W SB SW SM SD 1FFFH Motion controller RWw RWr RWw RWr 0000H 001FH 1000H 101FH Operation setting ...

Page 62: ...fault Start End Dev Name Select transfer source devices and transfer target devices Select W for either of the devices W SB SW SM SD Default Blank Points Enter the points of devices to be transferred W 1 to 4096 SB 16 to 8192 SW 1 to 8192 SM 16 to 2048 SD 1 to 2048 Default Blank Start Enter the start number of a device to be transferred Transfer From W 0 to 1FFF SB 0 to 1FF0 SW 0 to 1FFF SM 0 to 2...

Page 63: ...ter the end number of a device to be transferred Transfer From W 0 to 1FFF SB F to 1FFF SW 0 to 1FFF SM 15 to 2047 SD 0 to 2047 Default Blank Transfer To This item is automatically set according to the setting of transfer source Item Description Setting range ...

Page 64: ...Devices Transfer 1 Transfers the values in SB0040 to SB01FF to W1004 to W101F Transfer 2 Transfers the value in W0000 to SB0000 to SB000F Device name W Transfer 2 0000H 0000H 0000H 000FH RWw Device name SB Transfer From Transfer To 1004H Device name W Transfer 1 101FH 0004H 001FH 0040H 01FFH RWr Device name SB Transfer From Transfer To Transfer 1 Transfer 2 Operation of the head module to to to to...

Page 65: ... Default Blank Start XY Enter the start I O number 0000H to 0FF0H Default Blank button Set intelligent function module switches button Error Time Output Mode Select output mode in the following status An error occurred in the head module A data link error occurred Clear Hold Default Clear PLC Operation Mode at H W Error Specify whether to stop the auto refresh of the head module or not when a hard...

Page 66: ... and W can be set as an auto refresh device Item Description Setting range Module Selection Module Type Select a module type User s manual for the intelligent function module used Module Name Select a model name Mount Position Mounted Slot No Select the number of the slot where an intelligent function module is mounted button Click this button to check I O assignment setting configured in the PLC ...

Page 67: ...mission of bit and word device data of the head module 8 1 Cyclic Transmission of Bit Device Data The inputs X and outputs Y of the modules connected to the head module can be handled just like those of the Motion controller Motion controller RX RY RX RY Head module X Input module Y Output module Y Intelligent function module Motion controller Head module X ...

Page 68: ...ected to the head module The I O data flow between the Motion controller and the head module on the station number 1 are shown in Page 67 Section 8 1 1 a Page 68 Section 8 1 1 b Motion controller RX RY Head module Head module Head module Head module Station No 1 Station No 1 Station No 2 Station No 2 Station No 3 Station No 3 Station No 4 Station No 1 Station No 2 Station No 3 Station No 4 to 003F...

Page 69: ...nt input module 16 point output module X 000FH Y 0000H 0000H 000FH Y 16 point input module 16 point output module X 000FH Y 0000H 000FH 0000H 000FH Y X X Slot 0 Slot 1 Slot 2 Slot 3 0000H 0010H 0020H 0030H X Y Slot No Start I O No 0000H 000FH 0000H 0000H 000FH 000FH 0000H 0000H Station No 1 Station No 1 0000H to 000FH 0010H to 001FH 0020H to 002FH 0030H to 003FH 0000H to 000FH 0010H to 001FH 0020H...

Page 70: ... RY RY 0000H 003FH 003FH 16 point input module 16 point output module X 000FH Y 0000H 0000H 000FH Y 16 point input module 16 point output module X 000FH Y 0000H 000FH 0000H 000FH Y X X Slot 0 Slot 1 Slot 2 Slot 3 0020H 0000H 0030H 0010H X Y Slot No Start I O No 0000H 000FH 0000H 0000H 000FH 000FH 0000H 0000H 0020H to 002FH 0030H to 003FH 0000H 001FH 0000H to 000FH 0010H to 001FH 0020H 003FH Statio...

Page 71: ...and RY Link Device to 0000 to 003F To set an empty slot in the head module or to change a start I O number modify the data in the I O Assignment setting of the head module with GX Works2 If the number of points is going to be increased for a system extension or other reasons set a large number of RX Link Device and RY Link Device in the Head Module window of MT Developer2 Doing so will avoid chang...

Page 72: ...og Input Output Module User s Manual The refresh device status of the Motion controller is as follows Turns off if Y is specified for the CPU side device Holds its status if other than Y M L etc is specified for the CPU side device RUN Operating normally Cyclic transmission stopped The output Y status follows the Error Time Output Mode setting in the PLC Parameter Page 63 Section 7 1 6 The analog ...

Page 73: ...Device Data Word data such as the buffer memory of a module connected to the head module can be used in the word devices of the Motion controller Motion controller RWr RWw RWr RWw Head module Intelligent function module Motion controller Head module Intelligent function module Buffer memory etc Buffer memory etc ...

Page 74: ...e head module is transferred to the remote register RWr of the Motion controller The data flow between the Motion controller and the head module of station number 1 is shown in Page 73 Section 8 2 1 a Motion controller RWw RWr Head module Head module Head module Head module Station No 1 Station No 1 Station No 2 Station No 2 Station No 3 Station No 3 Station No 4 Station No 4 Station No 1 Station ...

Page 75: ... 2 procedure 2 RWw0 is assigned from W0 RWr0 is assigned from W1000 Set the refresh range of the buffer memory of the head module and the intelligent function module using the auto refresh setting of GX Works2 Page 74 Section 8 2 2 procedure 1 W RWr RWr RWw RWw 0000H 001FH 000FH 000FH 0000H 001FH 0000H 001FH 1000H 100FH 0000H 001FH 0000H 001FH Head module station No 1 Buffer memory Motion controll...

Page 76: ...ent function module connected to the head module with GX Works2 Specify the following devices as the devices to be auto refreshed Item Setting range of auto refresh target device Transfer to PLC W1000 to W101F Transfer to intelligent function module W0 to W1F ...

Page 77: ...the step 1 above Set the number of points whichever is greater between Transfer to CPU and Transfer to intelligent function module If the number of points is going to be increased for a system extension or other reasons set a large number of RWw Link Device and RWr Link Device in the Head Module window of MT Developer2 Doing so will avoid changing the parameter of the Motion controller at the syst...

Page 78: ...76 Memo ...

Page 79: ...Developer2 Connect MT Developer2 to the Motion controller to check the connection status of servo amplifiers and head modules on SSCNET III H 1 Starting the SSCNET III Communication Condition Monitor This section describes how to start the SSCNET III Communication Condition Monitor 1 Connect MT Developer2 to the Motion controller 2 Start the SSCNET III Communication Condition Monitor from the menu...

Page 80: ...unication error with SSCNET III Communication Status Monitor a When no error occurs 1 Double click the corresponding head module in the SSCNET III Communication Condition Monitor window 2 The Detail Information window is displayed The head module is connected properly Double click ...

Page 81: ...ouble click the corresponding head module in the SSCNET III Communication Condition Monitor window 2 The Detail Information window is displayed The error code of an error which has occurred is displayed 3 Click the button 4 The Help window for the error is displayed Double click Click ...

Page 82: ...80 Memo ...

Page 83: ... optimal condition at all times 10 1 Daily Inspection This section describes items that must be inspected daily Check box The modules are securely installed The module joint levers are properly locked The terminal screws of the modules are properly tightened Solderless terminals are physically out of contact and away from each other Cable connectors are fully inserted The terminal cover of the pow...

Page 84: ...been changed Check box The ambient temperature is within 0 to 55 C The ambient humidity is within 5 to 95 RH There is no corrosive gas The voltage across 100VAC terminals is within 85V to 132VAC The voltage across 200VAC terminals is within the range of 170V to 264VAC The voltage across 24VDC terminals is within 15 6V to 31 2VDC The modules are securely installed No dust or foreign matter is prese...

Page 85: ...SEC L CPU Module User s Manual Hardware Design Maintenance and Inspection 11 2 Troubleshooting Procedure The procedure for identifying the cause of the problem and taking action is explained below MT Developer2 or GX Works2 is used for this Connect MT Developer2 to the Motion controller to monitor the entire network status Page 77 CHAPTER 9 If the head module status cannot be monitored due to cabl...

Page 86: ...on Condition Monitor of MT Developer2 Page 77 CHAPTER 9 1 Connect GX Works2 to the head module and open the System Monitor window Diagnostics System Monitor 2 Select the module in which an error has occurred When the selected module is the head module Page 85 Section 11 2 1 a When the selected module is any other than the head module Page 86 Section 11 2 1 b ...

Page 87: ...f MT Developer2 and take action Page 77 CHAPTER 9 3 Reset of the head module and errors occurred before power off can be checked in the Error History window Diagnostics System Monitor button In the single Error History window the error history of the head module and intelligent function modules can be viewed Page 87 Section 11 3 4 If data link is not available even after troubleshooting by the abo...

Page 88: ...gnostics or detailed information 2 Reset of the head module and errors occurred before power off can be checked in the Error History window Diagnostics System Monitor button In the single Error History window the error history of the head module and intelligent function modules can be viewed Page 87 Section 11 3 3 If data link is not available even after troubleshooting by the above operation perf...

Page 89: ... is also detected If the same error occurred continuously only the first error record is displayed in the Error History window Selecting a module in the Main Block area in System Monitor and clicking the button will also open the Error History window In this case only the error history of the module selected in Main Block is displayed For details on errors of intelligent function modules refer to ...

Page 90: ...es during power off Therefore the data and time of an error that occurred during initial processing may be different from the actual one b The error is not correctly displayed If errors occurred frequently HST LOSS may be displayed in the Error Code column instead of an error code c No error history is displayed In PLC RAS of PLC Parameter check if the Module Error History Collection Intelligent F...

Page 91: ... of the head module to RUN to start data link Is it in the remote STOP status Cancel the remote STOP and start data link Has an error occurred in the head module From System Monitor in GX Works2 identify the cause of the error and take action Page 83 Section 11 2 Is the Motion controller in the RUN status Set the Motion controller to the RUN status If the Motion controller has stopped due to an er...

Page 92: ...ting status of modules on other stations Does the set station number correspond with the setting configured in the Head Module window of MT Developer2 Check the station number setting of each module in the Head Module window of MT Developer2 If a station number different from the setting is set power off the head module to correct the station number then power on the module again Is there any nois...

Page 93: ...ic transmission cannot be performed When cyclic data are not delivered to other stations or when cyclic data from the Motion controller cannot be received use the following troubleshooting methods If the above actions do not solve the problem check if there is any error in the refresh device setting for the CPU module configured by the Motion controller Programming Manual COMMON for the Motion con...

Page 94: ...ad module Errors of the head module are classified by error codes as shown below Error code Classification Reference 1 to 10000 Errors of the head module Page 93 Section 11 6 1 4000H to 4FFFH Error codes returned to the request source at communications Page 98 Section 11 6 2 A000H to AFFFH Errors of SSCNET III H Page 98 Section 11 6 3 ...

Page 95: ...R The RAM built in the head module is faulty Supplementary information Common information Individual information Diagnostic timing When powered on or reset Take action against noise and reset the module If this error occurs again the hardware of the head module may be faulty Please consult your local Mitsubishi representative 1102 1103 1104 1161 RAM ERROR The data in the device memory built in the...

Page 96: ...module which is not supported is connected disconnect the module When the connected module is supported reset the head module If this error occurs again the hardware of the head module I O module intelligent function module or END cover may be faulty Please consult your local Mitsubishi representative 1500 AC DC DOWN Momentary supply power failure occurred The supply power turned off Supplementary...

Page 97: ...on Common information Module No Slot No Individual information Diagnostic timing Any time Read common information on the error using GX Works2 check the module corresponding to the value module No and replace the module Monitor SD1400 to SD1431 on GX Works2 check the module corresponding to the bit indicating 1 and replace the module Reset the head module If this error occurs again the hardware of...

Page 98: ...gnostic timing When powered on or reset or when writing to PLC Read detailed error information using GX Works2 and check and correct the parameter corresponding to the value parameter No Write the corrected parameters to the head module again and reset or reapply power to the head module If this error occurs again the hardware of the head module may be faulty Please consult your local Mitsubishi r...

Page 99: ...mentary information Common information Time 200ms Individual information Time value actually measured Diagnostic timing Any time Modify the power supply system to prevent momentary power failure 5001 9900 NETWORK ERROR A SSCNET III H error has occurred Supplementary information Common information Individual information Diagnostic timing Any time Check the detailed module failure by the SSCNET III ...

Page 100: ...o the start I O number specified by the Motion SFC programs A0B5 Buffer memory address specified by the Motion SFC programs is out of range Set the buffer memory address specified by the Motion SFC programs within the range A0B7 Module is not installed to the start I O number specified by the Motion SFC programs Set start I O number where the module is installed using the Motion SFC programs Insta...

Page 101: ...dition of each device and take measures against noise Execute a unit test for the head module If a failure is detected again the hardware of the head module may be faulty Please consult your local Mitsubishi representative AAF3 Flash ROM failure A RAM error may have occurred due to noise Check the wire and cable distances and grounding condition of each device and take measures against noise Execu...

Page 102: ...100 Memo ...

Page 103: ...tion Forced on registration The remote input RX assigned to input X is transmitted cyclically in a forced on status Regardless of the remote output RY that was transmitted cyclically ON is output externally Forced off registration The remote input RX assigned to input X is transmitted cyclically in a forced off status Regardless of the remote output RY that was transmitted cyclically OFF is output...

Page 104: ... When the on off registration information of the following input X and output Y are canceled the forced on off status is retained Output Y that is outside the range that was set in RX Link Device and RY Link Device of the Head Module window of MT Developer2 d Status of the Head Module The REM LED of head module flashes Forced on off can be registered regardless of the RUN STOP status If an error o...

Page 105: ...the Device column The setting range in the Device column is X0 to X1FFF or Y0 to Y1FFF 3 Click the button for the intended operation The latest on off status can be checked by clicking the button Button name Description Button name Description Registers forced on for a specified device Cancels forced on off registered for the device specified Registers forced off for a specified device Cancels all...

Page 106: ...104 Memo ...

Page 107: ...ation to the head module in Operation RUN Sets the head module to the RUN mode The communication with the Motion controller continues when it is possible and the link devices are refreshed STOP Sets the head module to the STOP mode The communication with the Motion controller continues when it is possible However the link devices are not refreshed RESET Resets the head module This operation can be...

Page 108: ...mark The Remote Operation window can be displayed from the PLC diagnostics window of GX Works2 as well Page 83 Section 11 2 2 Click Remote Operation displayed on the right 1 Put the cursor on the LED display ...

Page 109: ...EC ET refer to the following MELSEC L CPU Module User s Manual Hardware Design Maintenance and Inspection 1 Part names 1 Do not remove this label as it is for maintenance 2 Specification No Name Application 1 Module joint levers Levers for connecting modules each other Item L6EC External dimensions H 90mm W 13mm D 95mm Internal current consumption 0 04A Weight 0 06kg 1 1 1 ...

Page 110: ...108 Memo ...

Page 111: ...us 1 Stores the self diagnostics results of own station The result is used on the network when a request from other stations is accepted OFF Normal ON Minor error occurred SB004B Own station status 2 Stores the self diagnostics results of own station The result is used on the network when a request from other stations is accepted OFF Normal ON Moderate or major error occurred SB004C RUN status own...

Page 112: ...110 Memo ...

Page 113: ...nk in progress 2 Data link stopped 5 Offline SW0048 Cause of communication interruption Stores the cause of interruption in the communication of own station 00H At normal communication or power on 33H Disconnection or reconnection in progress 40H Offline mode SW0049 Cause of data link stop Stores the cause which stopped the data link of own station 00H At normal communication or power on 02H Data ...

Page 114: ...112 Memo ...

Page 115: ...wn or communication failure Item Description No Special relay number Name Special relay name Description Contents of special relay Details Detailed description of special relay Set by Set timing Set side and set timing of special relay Set by S Set by system U Set by the user via network or by test operation of GX Works2 S U Set by both system and user Set timing The following shows the set timing...

Page 116: ...Down ON AC DC Down detected When using AC power supply modules this turns on if a power outage of 10ms or less occurs This is reset by powering off and on S On error When using DC power supply modules this turns on if a power outage of 10ms or less occurs This is reset by powering off and on SM61 I O module verify error OFF Normal ON Error occurs Turns on if the status of the I O module when power...

Page 117: ...esult in system down or communication failure Item Description No Special register number Name Special register name Description Contents of special register Details Detailed description of special register Set by Set timing Set side and set timing of special register Set by S Set by system U Set by the user via network or by test operation of GX Works2 S U Set by both system and user Set timing T...

Page 118: ... module synchronizes with that of the Motion controller Page 25 Section 3 2 SD4 Error information category Error information category code Stored to common information SD5 to SD15 and individual information SD16 to SD26 respectively Stores the category code that determines what the error information is The following codes are stored in the common information category code 0 None 1 Module No Slot N...

Page 119: ... When FFFFH is stored in SD6 I O No it means that the I O No could not be identified in I O Assignment of PLC Parameter In this case the error location is identified in SD5 2 File name drive name 3 Time Set value 4 For the names of extensions refer to the table below on this page S On error SD6 SD7 SD8 SD9 SD10 SD11 SD12 SD13 SD14 SD15 SDn SDn 1 Extension name File type Upper 8 bits Lower 8 bits U...

Page 120: ...items 1 to 6 below 1 Empty 2 File name drive name 3 Time Actual measurement value 4 For names of extensions refer to the table on Page 117 To the 4 S On error SD17 SD18 SD19 SD20 SD21 SD22 SD23 SD24 SD25 SD26 SD16 SD17 SD18 SD19 SD20 SD21 SD22 SD23 SD24 SD25 SD26 4 ABCDEFGH IJK 42H B 41H A 44H D 43H C 46H F 45H E 48H H 47H G 49H I 2EH 4BH K 4AH J b15 to b8 b7 to b0 Number Meaning Drive File name A...

Page 121: ...rement of the value 0 32767 32768 0 S On error SD61 I O module verify error number I O module verify error module number Stores the lowest I O No of the module in which the I O module verify error occurred No Name Description Details Set by Set timing SD16 SD17 SD18 SD19 SD20 SD21 SD22 SD23 SD24 SD25 SD26 Number Meaning Parameter No 5 Empty SD16 SD17 SD18 SD19 SD20 SD21 SD22 SD23 Number Meaning SD...

Page 122: ... 4 L ERR 5 Empty 6 RUN S Status change SD203 Operating status Operating status Stores the operating status of the head module 1 Operating status 0 RUN 2 STOP 2 Cause of STOP Stores the latest cause of the change in the operating status 0 STOP switch 1 Motion controller STOP 2 Remote operation from GX Works2 etc 4 Error 3 Empty S Status change SD250 Loaded maximum I O Loaded maximum I O number Stor...

Page 123: ... number of S points fixed to 0 SD299 Number of points assigned for T This register stores the number of T points fixed to 0 SD300 Number of points assigned for ST This register stores the number of ST points fixed to 0 SD301 Number of points assigned for C This register stores the number of C points fixed to 0 SD302 Number of points assigned for D This register stores the number of D points fixed ...

Page 124: ...off function 1 to 15 Empty fixed at 0 0 Not used 1 Used S Status change No Name Description Details Set by Set timing SD1400 I O module verify error Bit pattern in units of 16 points indicating the modules with verification errors 0 No I O verification errors 1 I O verification error exists If the status of the I O module changes from that obtained at power on the module No is stored in the follow...

Page 125: ...123 APPENDICES A Appendix 7 Special Register SD List Memo ...

Page 126: ...odules These precautions are based on the requirements and the standards of the regulation however it does not guarantee that the entire machinery constructed according to the descriptions will comply with above mentioned directives The method and judgement for complying with the EMC Directive must be determined by the person who constructs the entire machinery 1 Standards relevant to the EMC Dire...

Page 127: ...ication of an EMI gasket on the paint surface Our tests have been carried out on a panel having the attenuation characteristics of 37dB max and 30dB mean measured by 3m method 30 to 300MHz Specification Test item Test details Standard value EN61131 2 2007 EN61000 4 2 Electrostatic discharge immunity 1 Immunity test in which electrostatic is applied to the cabinet of the equipment 8kV Air discharge...

Page 128: ...Ground the shield of the shielded cable as close to the module as possible so that the grounded cable will not be affected by electromagnetic induction from ungrounded cables Ground the exposed shield section to large area on the control panel A clamp fitting can be used as shown in below In this case apply a cover on the painted inner wall surface of the control panel which comes in contact with ...

Page 129: ...devices When using connectors for external devices with any of the following modules take the noise reduction measures described below High speed counter module Flexible high speed I O control module Wiring example when using shielded cables The following figure shows the example of wiring using A6CON1 for noise reduction 20 to 30cm Inside the control panel AD75CK Module External I O device Extern...

Page 130: ...ed they are affected by static electricity and may result in malfunction Take off the insulating tube of each shield and connect the shields of the cables with conductive tapes Relay Relay Relay Programmable controller Programmable controller Relay Relay Relay Modified Wiring duct Wiring duct Control panel Control panel Drive unit Drive unit Noise source Power system etc The drive units are placed...

Page 131: ...ower in the same control panel with the modules When a cable for the DC power is installed extending outside the control panel use a shielded cable A cable for the DC power must be 30m or less in length When the number of relay operations is more than 5 times per minute take measures such as using a surge suppressor 7 High speed counter module Install the DC power in the same control panel with th...

Page 132: ... is a component which has an effect on conducted noise Attaching the filter can suppress more noise The noise filter has the effect of reducing conducted noise of 10 MHz or less The precautions for attaching a noise filter are described below Do not bundle the cables on the input side and output side of the noise filter If bundled the output side noise will be induced into the input side cables fr...

Page 133: ...g surge may cause a malfunction of the programmable controller As measures against lightning surge noise connect an isolation transformer as shown below Using an isolation transformer will reduce an impact of lightning 100V AC 200V AC T1 Programmable controller Isolation transformer Programmable controller power supply I O power supply Motor power supply I O equipment Motor equipment Main power su...

Page 134: ...e For CE marked products please consult your local Mitsubishi representative 2 MELSEC L series module selection a Power supply module There are dangerous voltages voltages higher than or equal to 42 4V peak inside the power supply modules of 100VAC and 200VAC rated input voltages Therefore for CE marked products insulation is reinforced internally between the primary and secondary circuits b I O m...

Page 135: ...voltage resulting in insulation destruction The insulation in our programmable controllers are designed to cope with the pollution level 2 so use it in an environment with pollution level 2 or below The pollution level 2 environments can be achieved when the programmable controller is stored in a control panel equivalent to IP54 5 External wiring a 24VDC external power supply For the 24VDC I O mod...

Page 136: ... failure configure external fail safe circuits an emergency stop circuit protection circuit and interlock circuit in the areas where incorrect operation can result in mechanical damage or accidents 1 Fail safe measures against failure of head module The self diagnostic function can detect failure of the head module However if an error occurs in an area such as I O control part the head module may ...

Page 137: ...135 APPENDICES A Appendix 9 General Safety Requirements Memo ...

Page 138: ...ntire programmable controller system A Surface area inside the control panel m2 U 6 When the ambient temperature inside the control panel is uniformed using a fan U 4 When the air inside the control panel is not circulated If the temperature inside the control panel is expected to exceed the specified range it is recommended to install a heat exchanger to the panel to lower the temperature If a ge...

Page 139: ...upply is the total power consumption of each module W24V I24V 24 Simultaneous on rate W 4 Voltage drop in the output section of the output module power consumption for the output points simultaneously turned on WOUT IOUT Vdrop output points Simultaneous on rate W IOUT Output current current in actual use A Vdrop Voltage drop of each output module V 5 Average power consumption of input section in t...

Page 140: ...dule and an auto refresh of the same number of points as the number of RWw RWr points was executed Rio I O response time of the head module RX RY points The number of points set for RX Link Device and RY Link Device of the head module in the system setting of MT Developer2 RWw RWr points The number of points set for RWw Link Device and RWr Link Device of the head module in the system setting of MT...

Page 141: ...139 APPENDICES A Appendix 11 Processing Time Memo ...

Page 142: ...ersion of the head module can be checked on any of the following Rating plate Front of the module System Monitor in GX Works2 1 Checking on the rating plate The rating plate is located on the side of the head module 150111000000000 A Serial number Function version Relevant regulation standards ...

Page 143: ...x 12 Checking Serial Number and Function Version 2 Checking on the front of the module The serial number on the rating plate is printed on the front at the bottom of the module 150111000000000 A Serial number Function version ...

Page 144: ... number display the serial number production number printed on the rating plate of the module is displayed in the Production Number column The serial number displayed on the Product Information List window of GX Works2 may differ from that on the rating plate or on the front of the module The serial number on the rating plate or on the front of the module indicates the management information of th...

Page 145: ...143 APPENDICES A Appendix 12 Checking Serial Number and Function Version Memo ...

Page 146: ...144 Appendix 13 External Dimensions 1 Head module LJ72MS15 2 END cover L6EC 50 95 4 4 90 45 45 4 Unit mm DIN rail center 13 95 4 4 90 45 45 4 Unit mm DIN rail center ...

Page 147: ...145 APPENDICES A Appendix 13 External Dimensions Memo ...

Page 148: ...e output mode 63 External dimensions 26 144 F Fail safe measures against failure of head module 134 Ferrite core 130 Forced on off for external I O 27 Function list 27 G General safety requirements 134 General specifications 24 Grounding 48 H Head module 13 16 Head module system configuration 31 I I O assignment 63 I O response time 63 Immunity 125 Installation 36 Installation and wiring 35 Instal...

Page 149: ...method 69 74 Software package 33 Special register SD list 115 Special relay SM list 113 Specifications 24 SSCNET III communication condition monitor 27 77 SSCNET III H 13 Station number setting switch 22 STOP 21 Switch 21 System clock counter 114 System configuration 31 System error history 27 55 87 System information 120 System monitor 27 T Term 13 Testing the head module before wiring 44 Transie...

Page 150: ...tober 2015 SH NA 081152ENG E Section 5 2 8 1 March 2017 SH NA 081152ENG F INTRODUCTION TERM PACKING LIST Chapter 2 Section 3 2 5 1 5 2 6 2 6 2 1 11 4 Appendix 8 8 1 8 2 12 13 This manual confers no industrial property rights or any rights of any other kind nor does it confer any patent licenses Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial propert...

Page 151: ...been avoided if functions or structures judged as necessary in the legal safety measures the user s device is subject to or as necessary by industry standards had been provided 4 Failure that could have been avoided if consumable parts battery backlight fuse etc designated in the instruction manual had been correctly serviced or replaced 5 Failure caused by external irresistible forces such as fir...

Page 152: ...ox Co Ltd in Japan The company names system names and product names mentioned in this manual are either registered trademarks or trademarks of their respective companies In some cases trademark symbols such as or are not specified in this manual SH NA 081152ENG F ...

Page 153: ......

Page 154: ...without notice When exported from Japan this manual does not require application to the Ministry of Economy Trade and Industry for service transaction permission HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YADA MINAMI 5 CHOME HIGASHI KU NAGOYA JAPAN ...

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