104
Errors and Troubleshooting
Section 6-1
6-1
Errors and Troubleshooting
The following tables list the indicator statuses, probable causes, and remedies
for errors that may occur in each Communication Unit.
6-1-1
Errors in the E3X-DRT21
Indicator status
Probable cause
Remedy
MS and NS indica-
tors not lit.
Power is not supplied to the Unit.
Supply the communications power to the Unit through the
DeviceNet Communications Connector.
The current and voltage are outside
the permissible range.
Use the current and voltage within the permissible range.
The Unit is faulty.
Replace the Unit.
MS indicator lit red
The Unit is faulty.
Replace the Unit.
MS indicator lit
green, NS indicator
flashing green
The Unit is waiting for connection to
DeviceNet communications.
Check the following items and then restart the Unit.
• Are cable lengths (trunk/branch lines) suitable?
• Are cables shorted, broken, or loose?
• Is the wiring configuration correct?
• Is terminating resistance connected to both ends of the
trunk line only?
• Is there too much noise?
• Is the power turned ON to the master?
The Unit is faulty.
Replace the Unit.
MS indicator lit
green, NS indicator
lit red
DeviceNet has gone into Busoff sta-
tus.
Check the following items and then restart the Unit.
• Are cable lengths (trunk/branch lines) suitable?
• Are cables shorted, broken, or loose?
• Is terminating resistance connected to both ends of the
trunk line only?
• Is there too much noise?
The same node address has been
allocated to two or more nodes.
Set the node addresses correctly.
The Unit is faulty.
Replace the Unit.
MS indicator lit
green, NS indicator
flashing red
A communications timeout error has
occurred.
Check the following items and then restart the Unit.
• Are cable lengths (trunk/branch lines) suitable?
• Are cables shorted, broken, or loose?
• Is terminating resistance connected to both ends of the
trunk line only?
• Is there too much noise?
The Unit is faulty.
Replace the Unit.
SS indicator not lit.
No Sensors are connected.
Connect the Sensors correctly.
The Sensor adjacent to the Fiber
Amplifier Sensor Communication Unit
is faulty.
Replace the Unit adjacent to the Communication Unit.
The power was turned ON while the
Mobile Console was connected.
Temporarily disconnect the Mobile Console.
The Unit is faulty.
Replace the Unit.
Содержание E3X-CIF11
Страница 3: ...iv...
Страница 21: ...10 Connecting Fiber Amplifier Units Section 1 3...
Страница 63: ...52 Setting Monitoring and Operating Sensors from the DeviceNet Configurator Section 2 7...
Страница 107: ...96 CompoWay F Message Communications Section 4 5...
Страница 125: ...114 Monitoring Incident Light Levels of E3X DA6 P Sensors Appendix B...
Страница 133: ...122 DeviceNet Connection Settings Appendix C...
Страница 135: ...124 DeviceNet Device Profile Appendix D...
Страница 137: ...126 Revision History...