Hitachi LQZ700 User Manual Download Page 42

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5 MAINTENANCE

5-3

5.2 Troubleshooting

5.2.1 Procedure

Trouble occurred.

Check the trouble according
to “5.2.2 Trouble detection
and solution.”

Correct if the item is not
executed correctly.

Is each item

executed correctly?

Troubleshooting ended.

Check the system error
information by the LPU
indicator and tool, and take a
measure.

Returned normally?

YES

Returned normally?

Fill in the trouble report.
Use “5.4 Trouble Report.”

Contact your local source.

Figure 5-1 Troubleshooting Flow

Summary of Contents for LQZ700

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Page 3: ...Edition March 2012 SVE 1 123 E All Rights Reserved Copyright 2003 2012 Hitachi Ltd The contents of this publication may be revised without prior notice No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher Printed in Japan BI IC FL MW2007 AI10 ...

Page 4: ...ely This manual divides the safety precautions into DANGERs and CAUTIONs Failure to observe these warnings may result in death or serious injury Failure to observe these cautions may result in injury or property damage Failure to observe any may lead to serious consequences All of these DANGERs and CAUTIONs provide very important precautions and should always be observed Additional safety symbols ...

Page 5: ...s subjected to high temperature high humidity dust corrosive gas vibration or impact a risk of electric shock fire or malfunction may result z Observe the installation procedure stated in the manual If the module is improperly installed it may drop become defective or malfunction z Do not allow wire cuttings or other foreign matter to enter the module The entry of foreign matter in the module may ...

Page 6: ...d perform the mounting and wiring procedures z To prevent the module from being damaged observe the following precautions when you mount or demount the module Before mounting the module to the mount base connector check that the connector pins are properly aligned and not bent broken or soiled with dirt or the like Ensure that the module is parallel to the mount base vertical surface as shown belo...

Page 7: ...nent parts deterioration z Before installing the module discharge any static buildup from your body because static electricity may render the module defective z Properly tighten the screws If they are inadequately tightened malfunction smoke emission or combustion may occur PROHIBITION Do not disassemble or modify the module Failure to observe this precaution may result in a fire or cause the modu...

Page 8: ...d terminal for power supply noise The FG and SHD are ground terminals for the noise in the remote I O communication module and other external interface lines To avoid interference between the ground terminals separately ground the LG and FG CAUTION z If the input voltage for the power supply module is within the specified range but close to the upper or lower limit you should conclude that an inpu...

Page 9: ...r It is essential that the inverter motor power regulator and other motive power cables be routed at least 300 mm away from the other types of cables Also be sure that the communication and motive power cables are routed within separate conduits z Provide with protect elements such as a fuse and or a circuit protector in an external power supply for short circuit protection Use the suitable protec...

Page 10: ...be responsible for personal injury or death or any damage to Hitachi s product or peripheral equipment arising out of the use of such an unauthorized procedure z While the power is applied never touch a terminal strip or connector pin If you touch a terminal strip or connector pin while the power is applied you may receive an electric shock CAUTION z Before changing the program generating a forced...

Page 11: ... this manual contact your local source z Hitachi cannot be responsible for accidents or losses resulting from a customer s misuse z If the software supplied by Hitachi is modified for use Hitachi cannot be responsible for accidents or losses resulting from such modification z Hitachi cannot be responsible for reliability if you use software other than supplied from Hitachi z Back up files on a dai...

Page 12: ...n that which was delivered z The malfunction was caused by modifications or repairs made by a vendor other than the vendor that delivered the unit z The malfunction was caused by a relay or other consumable which has passed the end of its service life z The malfunction was caused by a disaster natural or otherwise for which the vendor is not responsible The warranty mentioned here means the warran...

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Page 14: ...rdware product SYS SW LQZ700 Changes added to this manual Description of added changes Page Section 5 3 Replacing Module is newly added 5 6 In addition to the above changes all the unclear descriptions and typographical errors found are also corrected without prior notice ...

Page 15: ...and reason for revision Month Year Remarks B First Edition July 2003 D Section 5 3 Replacing Module is newly added September 2008 E Additional information is added concerning the service life of the relays contained in certain types of hardware modules March 2012 ...

Page 16: ...llow the instructions set forth in this manual for proper use of the product even if you use the environmentally resistant model Trademarks Ethernet is a registered trademark of Xerox Corp Microsoft Windows operating system Microsoft Windows 2000 operating system Microsoft Windows XP operating system are registered trademarks of Microsoft Corporation in the United States and or other countries All...

Page 17: ...ing 3 4 3 4 Wiring 3 6 3 4 1 Remote I O Cable Wiring 3 6 3 4 2 SYS SW module wiring 3 7 4 USER GUIDE 4 1 4 1 User Guide 4 2 4 1 1 SYS SW module operations 4 2 4 1 2 Startup procedure 4 4 4 1 3 Operation procedure at occurrence of an error 4 5 5 MAINTENANCE 5 1 5 1 Maintenance and Inspection 5 2 5 1 1 Periodic check 5 2 5 2 Troubleshooting 5 3 5 2 1 Procedure 5 3 5 2 2 Trouble detection and solutio...

Page 18: ...g 3 4 Figure 3 3 Remote I O Cable Wiring 3 6 Figure 3 4 SYS SW Module Wiring 3 7 Figure 5 1 Troubleshooting Flow 5 3 TABLES Table 3 1 Mount Bases Applicable to the SYS SW Module 3 2 Table 5 1 Maintenance and Inspection Items 5 2 Table 5 2 Causes of the Failure in SYS SW Module Operation and Action To Be Taken 5 4 ...

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Page 20: ...1 SPECIFICATIONS ...

Page 21: ...ult occurs in the running system This changeover is performed by the following causes z The PCs OK signal of the LPU has changed from the ON status into the OFF status z The PI O output PI O OK of the LPU has changed from the ON status into the OFF status This module LQZ700 is not available for the CPU unit of the S10mini series The following figure shows a system configuration Figure 1 1 System C...

Page 22: ...a PI O OK output of the self system STOP RUN Contact b LPU STOP RUN output of the self system Number of outputs Contact a 2 outputs Contact b 1 output Output type Relay output Insulation method Relay insulation Rated output 100 VAC 2 A 100 VDC 0 1 A Minimum output 100 VAC 100 VDC 10 mA Maximum output 250 VAC 125 VDC Maximum rush current 5 A 100 ms or less Response time 15 ms or less Maximum openin...

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Page 24: ...2 NAMES AND FUNCTIONS OF EACH PART ...

Page 25: ...g the cause of error clear the error status by using this switch TB terminal block Used to wire the following signals This adopts a connector type that permits connection disconnection PCs OK input terminal A1 A2 Connects the PCs OK output of the self system LPU BUSY IN input terminal B1 B2 Connects the BUSY OUT output of the other system SYS SW STOP RUN output terminal A4 A5 Connects the ladder S...

Page 26: ...3 MOUNTING AND WIRING ...

Page 27: ... 8 slot mount base HSC 1580 Power supply LPU 8 slots option for I O 3 2 Mounting the Module Mount the SYS SW module in the final option slot slot No 3 or 7 of the mount base according to the following items z When mounting the module in the 4 slot mount base mount it in slot No 3 z When mounting the module in the 8 slot mount base mount it in slot No 7 7 3 6 5 4 1 2 0 Mount base Option slots SYS S...

Page 28: ...tor check that the connector pins are properly aligned and not bent broken or soiled with dirt or the like Ensure that the module is parallel to the mount base vertical surface as shown below when mounting If you connect a module to or disconnect it from its connector while it is tilted the connector pins may become damaged If the mount base is positioned overhead due to the employed enclosure str...

Page 29: ...it grounding point of the enclosure in which the mount base is housed with a wire diameter of 2 0 mm2 or more Perform Class D grounding from the PCs unit grounding point of the enclosure using a wire with a wire diameter of 5 5 mm2 or more FG terminal to each individual module Enclosure s PCs unit grounding point Class D grounding 5 5 mm 2 or more 2 0 mm 2 or more 2 0 mm 2 or more To mount base FG...

Page 30: ...on due to noise interference Therefore ground the line ground LG frame ground FG and shield wire SHD REQUIREMENT z Insulate the mount base from the enclosure To keep the mount base insulated avoid removing the insulation sheets that are supplied with the mount base z The LG is a ground terminal for power supply noise The FG and SHD are ground terminals for the noise in the remote I O communication...

Page 31: ...fore connect between each LPU unit and the remote I O station by a remote I O cable At this time be sure to provide a terminating resistor in the units at both ends of the remote I O line The connected remote I O stations must all be used with an output hold setting of HOLD PS LPU Option PS LPU SYS SW SYS SW Option System A unit System B unit PS ST RI O I O PS ST RI O I O Termination setting Termi...

Page 32: ... O STOP A2 PCs OK B1 Ladder STOP RUN A1 RI O STOP A2 PCs OK B1 LPU SYS SW module Contact a Contact b Contact a Contact a Contact b Contact a LPU SYS SW module 100 VAC 100 VDC COM A5 COM A2 COM B5 COM B2 Ladder STOP RUN A4 PCs OK A1 BUSY OUT B4 BUSY IN B1 COM A5 COM A2 COM B5 COM B2 COM A3 COM B2 COM A3 COM B2 Contact a Contact a PI O OK B7 COM B8 PI O OK B7 COM B8 System B unit System A unit Fuse ...

Page 33: ...es are mounted in both sides PI O OK 5 A Mount a fuse to one place of the external power unit In DC power supply use a fuse is mounted in a plus side and in the case of AC power supply fuses are mounted in both sides REQUIREMENT Provide with protect elements such as a fuse and or a circuit protector in an external power supply for short circuit protection Use the suitable protect elements for suit...

Page 34: ...4 USER GUIDE ...

Page 35: ...sed with an output hold setting of RESET the outputs of its PI O modules may be cleared when switching occurs from the running system to the standby system To avoid this be sure to use all the connected remote I O stations with an output hold setting of HOLD which can be made by shorting across the HOLD A3 and COM A2 terminals on the terminal block z At a startup the side of which the power supply...

Page 36: ...ot provided with a backup function at a blackout If a blackout power recovery is performed when one side or both sides are faulty the faulty status holding function is cleared so the LPU of the error system may become the running system z The PI O OK output signal is output to the PI O output area Y by an application such as ladder The detailed contents are as follows Example When the SYS SW modul...

Page 37: ...em 1st Higher priority 2nd Lower priority Set the output hold features of all the remote I O stations connected with the controller units to HOLD by shorting across the HOLD A3 and COM A2 terminals on the terminal block Turn on the power supplies of the two R70 S10V units and the external power supplies After turning on the power supplies the SYS SW module waits for about 15 seconds until the self...

Page 38: ...am When detecting a self system unit error the SYS SW module of the running system turns off the STOP RUN BUSY OUT and PI O OK outputs and turns on the ERR LED The SYS SW module of the standby system outputs BUSY OUT confirms that BUSY IN is not turned on again and turns on the execution command STOP RUN of the self system LPU Thus this SYS SW module controls the system as the running system When ...

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Page 40: ...5 MAINTENANCE ...

Page 41: ...le covering out of position could cause the system to malfunction incur electrical shock hazards or develop short circuits resulting in burnouts Dust sticking condition Check to see if the module has not caught dust If dust is noticed remove it with a vacuum cleaner or other apparatus Dust could cause short circuits in its internal circuitry resulting in burnouts Module replacement Replacing the m...

Page 42: ...ect if the item is not executed correctly Is each item executed correctly Troubleshooting ended Check the system error information by the LPU indicator and tool and take a measure Returned normally YES NO YES NO YES NO Returned normally Fill in the trouble report Use 5 4 Trouble Report Contact your local source Figure 5 1 Troubleshooting Flow ...

Page 43: ... of OFF and take a measure See The PI O OK output has changed from ON into OFF in the following field The LPU is faulty PCs OK is not output Investigate the LPU status and take a measure The PI O OK output has changed from ON into OFF The ERR LED comes on too The LPU is faulty Investigate the LPU status and take a measure Application error Find out the cause of the application that turns off PI O ...

Page 44: ... Do not ground the SYS SW module in the same place where high voltage equipment is grounded They must be grounded in separate places Perform grounding work conforming to Class D grounding or higher 5 Are LG and FG separated Be sure to separate the LG from the FG or vice versa because power noise enters the FG via the LG Failure to observe this rule may result in an equipment malfunction Ground the...

Page 45: ...tact portions Replace the SYS SW module Turn on the power supply of the self system unit Turn on the external power supply connected to the self system unit Start of replacement Install the TB of the SYS SW module Set the PRIORITY switch in the same position as you wrote down previously in this procedure Write down the current setting of the PRIORITY switch on a piece of paper When this procedure ...

Page 46: ...and time of occurrence year month day hour minute Where to make contact Address Telephone FAX E mail Model of defective module LPU model OS Ver Rev Program name Ver Rev Support program Program name Ver Rev Symptom of defect Connection load Type Model Wiring state System configuration and switch setting Space for correspondence ...

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