Fault Codes DTC & Troubleshooting
Table Of Contents
- Cover
- Copyright
- SAFETY PRECAUTIONS
- Revision record
- PREFACE
- CONTENTS
- FIGURES
- TABLES
- 1 PRELIMINARY CHECKING
- 2 TROUBLESHOOTING
- 2.1 Troubleshooting Procedure
- 2.2 Troubleshooting Maps
- LPU
- ● None of the LED indicators comes on.
- ● The ERR indicator (LED) is lit.
- ● The remote I/O process produces outputs but does not accept inputs.
- ● The PCs OK output is OFF.
- ● The sequence program does not run.
- ● A DI/O or AI/O module mounted on the same mount base as is the LPU module does not runnormally.
- CMU
- PS Power supply
- FL.NET
- OD.RING, SD.LINK
- ET.NET (LQE520)
- SV.LINK
- J.NET, J.NET-INT
- IR.LINK
- CPU LINK Inter-CPU link
- RS-232C, RS-422
- D.NET
- EQ.LINK
- ET.NET (LQE720)
- RI/O
- J.Station
- IR.Station
- D.Station
- A.INPUT Analog input
- A.INPUT Scan-type analog input
- A.OUTPUT Analog output
- D.INPUT Digital input
- D.OUTPUT Digital output
- D.IN/OUT Digital input/output
- COUNTER Pulse counter
- Tool (personal computer) connection
- LPU
- 3 TECHNICAL SUPPORT INFORMATION
- 3.1 Remote I/O Troubleshooting
- 3.2 LPU Error Information Detail Table
- 3.3 Clearing the Entire Memory
- 3.4 Backing Up and Restoring
- 3.5 Performance
- 3.6 Address Space Maps
- 3.7 Registers
- 3.8 Memory Maps for Optional Modules
- 3.9 FL.NET (Model LQE500/LQE502) Error Information
- 3.10 OD.RING (Model LQE510/515) and SD.LINK (Model LQE530) Communication Traces
- 3.11 ET.NET (Model LQE520) Error Information
- 3.12 SV.LINK (Model LQE521) Error Information
- 3.13 J.NET (Model LQE541), J.NET-INT (Model LQE547), and IR.LINK (Model LQE548) Trace Information
- 3.14 RS-232C (Model LQE560) and RS-422 (Model LQE565) Trace Information
- 3.15 D.NET (Model LQE570/575) Statistical and Error Information
- 3.16 ET.NET (Model LQE720) Error Information
- 3.17 Error Freeze Information
- 3.18 Memory Dump Procedure
- 3.19 Network Information
- 3.20 Network Maintenance Commands
- 4 ERROR LOG INFORMATION
- 4.1 Displaying Error Log Information
- 4.2 Error Log Information and Required Actions
- 4.2.1 LPU (model LQP510) error log info and required actions
- 4.2.2 CMU (model LQP520) error log info and required actions
- 4.2.3 FL.NET (model LQE500/502) error log info and required actions
- 4.2.4 OD.RING (model LQE510/515) error log info and required actions
- 4.2.5 ET.NET (model LQE520) error log info and required actions
- 4.2.6 SV.LINK (model LQE521) error log info and required actions
- 4.2.7 SD.LINK (model LQE530) error log info and required actions
- 4.2.8 J.NET (model LQE541) / J.NET-INT (model LQE547) error log info and required actions
- 4.2.9 IR.LINK (model LQE548) error log info and required actions
- 4.2.10 CPU LINK (model LQE550) error log info and required actions
- 4.2.11 RS-232C (model LQE560) / RS-422 (model LQE565) error log info and required actions
- 4.2.12 D.NET (model LQE570/575) error log info and required actions
- 4.2.13 EQ.LINK (model LQE701) error log info and required actions
- 4.2.14 ET.NET (model LQE720) error log info and required actions
- 4.2.15 NCP-F (model LQE780-Z) error log info and required actions
- 4.2.16 LANCP (model LQE790-Z/795-Z) error log info and required actions
- 4.3 CMU Error Message Formats
- 4.4 RPDP Error Log Display Guide
- 4.4.1 Reading the error log
- 4.4.2 Types of error logs
- 4.4.3 Error log details and analysis
- (1) Program error
- (2) Macro parameter check error
- (3) I/O error
- (4) Watchdog timer timeout error
- (5) Module error
- (6) Kernel warning
- (7) Kernel information
- (8) System down -- system error
- (9) System down -- kernel trap
- (10) System down -- built-in subroutine error
- (11) System down -- built-in subroutine stoppage
- (12) ADT error
- (13) Memory error
- (14) System bus error
- (15) Other error
- 4.4.4 Reading the DHP trace information
- 4.5 Maintenance Commands
- 5 APPENDIX
- 5.1 Tool Error Messages
- 5.1.1 Error messages from the LADDER CHART SYSTEM
- 5.1.2 Error messages from the HI-FLOW SYSTEM
- 5.1.3 Error messages from the BASE SYSTEM
- 5.1.4 Error messages from the FL.NET SYSTEM
- 5.1.5 Error messages from the OD.RING/SD.LINK SYSTEM
- 5.1.6 Error messages from the ET.NET SYSTEM
- 5.1.7 Error messages from the J.NET SYSTEM
- 5.1.8 Error messages from the IR.LINK SYSTEM
- 5.1.9 Error messages from the CPU LINK SYSTEM
- 5.1.10 Error messages from the EXTERNAL SERIAL LINK SYSTEM
- 5.1.11 Error messages from the D.NET SYSTEM
- 5.1.12 Error messages from the EQ.LINK SYSTEM
- 5.1.13 Error messages from the BACKUP RESTORE SYSTEM
- 5.1.14 Error messages from the NX/Tools-S10V SYSTEM
- 5.1.15 Error messages from the tools
- 5.2 Trouble Report
- 5.1 Tool Error Messages
2 TROUBLESHOOTING
- 7 -
2.2 Troubleshooting Maps
The troubleshooting maps provided in this section serve as a guide to help users troubleshoot their
systems as quickly as possible in the event of a problem. Each troubleshooting map has the
following general format:
LPU
LQP510
None of the LED indicators comes on.
Check if: What to do
The power supply module is operating
abnormally.
If true, follow the troubleshooting map
for the power supply module in order
to check out the said module.
The LPU and/or the power supply module is
installed incorrectly.
If true, install them correctly.
The supply voltage from the power supply
module is abnormal.
If true, replace the power supply
module.
Module name
Module model
Problematic symptom or condition
Required checks Required actions
https://www.truck-manuals.net/