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11-3
11 Troubleshooting
NJ-series CPU Unit Motion Control User’s Manual (W507)
11-1 Ov
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11
11-1
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or Errors
You can check to see if an error has occurred with the following methods.
This section describes the above checking methods.
You can use the PWR indicator on the Power Supply Unit and the RUN and ERROR indicators on the
CPU Unit to determine the event level for an error. The following table shows the relationship between
the Controller’s indicators and the event level.
*1
If you can go online with the CPU Unit from the Sysmac Studio with a direct USB connection, the CPU Unit is
in PROGRAM mode. If you cannot go online, the CPU Unit is being reset.
*2
If you can go online with the CPU Unit from the Sysmac Studio with a direct USB connection, a major fault level
error has occurred. If you cannot go online, a watchdog timer error has occurred in the CPU Unit.
*3
If you cannot go online with the CPU Unit from the Sysmac Studio, it is also possible that the USB cable is
faulty or that the network type on the Sysmac Studio is not set for a direct USB connection. Refer to the
NJ-
series Troubleshooting Manual
(Cat. No. W503) if you cannot go online with the CPU Unit.
11-1-1 How to Check for Errors
Checking method
What you can check
Checking the indicators
CPU Unit operating status
Troubleshooter of the Sysmac Studio
You can check for current Controller errors, a log of past Controller
errors, error sources, error causes, and corrections.
Checking with the Troubleshooter of an NS-
series PT
You can check for current Controller errors, a log of past Controller
errors, error sources, causes, and corrections.
Checking with instructions that read function
module error status
You can check the highest-level status and highest-level event
code in the current Controller errors.
Checking with System-defined Variables
You can check the current Controller error status for each function
module.
Checking the Indicators
Indicator
CPU Unit operating status
Error confirmation with the Sysmac
Studio or an NS-series PT
PWR
RUN
ERROR
Not lit
Not lit
Not lit
Power Supply Error
Not possible:
Refer to the
NJ-series Troubleshooting
Manual
(Cat. No. W503).
Lit
Not lit
Not lit
CPU Unit Reset
*1
Lit
Flashing
Lit
Incorrect Power Supply Unit Con-
nected
Lit
Not lit
Lit
CPU Unit Watchdog Timer
Error
*2
Lit
Not lit
Lit
Major fault level
*2
Possible:
Connect the Sysmac Studio or an NS-
series PT and check the cause of and
correction for the error in the trouble-
shooting functions of the Sysmac Stu-
dio or the Troubleshooter of the NS-
series PT.
Lit
Lit
Flashing
Partial fault level
Lit
Lit
Flashing
Minor fault level
Lit
Lit
Not lit
Observation
Lit
Lit
Not lit
Normal operation in RUN mode
---
Lit
Not lit
Not lit
Normal operation in PROGRAM
mode
*1
---
Lit
Flashing
Not lit
Normal operation in startup state
---
Summary of Contents for NJ501-1300
Page 12: ...Sections in this Manual 10 NJ series CPU Unit Motion Control User s Manual W507...
Page 18: ...16 NJ series CPU Unit Motion Control User s Manual W507 CONTENTS...
Page 22: ...Read and Understand this Manual 20 NJ series CPU Unit Motion Control User s Manual W507...
Page 34: ...Revision History 32 NJ series CPU Unit Motion Control User s Manual W507...
Page 86: ...3 Configuring Axes and Axes Groups 3 28 NJ series CPU Unit Motion Control User s Manual W507...
Page 122: ...5 Motion Control Parameters 5 24 NJ series CPU Unit Motion Control User s Manual W507...
Page 158: ...6 Motion Control Programming 6 36 NJ series CPU Unit Motion Control User s Manual W507...
Page 166: ...7 Manual Operation 7 8 NJ series CPU Unit Motion Control User s Manual W507...
Page 182: ...8 Homing 8 16 NJ series CPU Unit Motion Control User s Manual W507...
Page 346: ...10 Sample Programming 10 92 NJ series CPU Unit Motion Control User s Manual W507...
Page 422: ...Appendices A 18 NJ series CPU Unit Motion Control User s Manual W507...
Page 423: ...Index 1 NJ series CPU Unit Motion Control User s Manual W507 I Index...
Page 430: ...Index 8 NJ series CPU Unit Motion Control User s Manual W507 Index...