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36
Troubleshooting Using the LED Indicators
Section 5-1
5-1-4
Commisioning Mode
When using one of the OMRON tools during commissioning time, the
3G3AX-MX2-DRT-E can be set into commissioning mode. A clear indication
will be given by the tool.
Commissioning mode is NOT an error, but it can influence normal system
operation. During commissioning mode, Inverter parameter access takes pri-
ority over cyclic data exchange. Accessing Inverter parameters will therefore
delay cyclic data exchange causing unexpected latencies.
!Caution
Make sure that commissioning mode is disabled before operating the system.
The Option Board detects: communica-
tion idle or communication timeout during
RUN mode (P044).
Check (and correct) the following items:
Is the DeviceNet master sending IDLE messages? Check P048
to select the Action on Network Idle.
Increase the value of P044, the timeout value. (COS/Cyclic
connections require the P044 time-out to be set to a value
larger than the heart-beat timer).
Network power failure.
Check (and correct) the following items:
Are the correct pins wired on the DeviceNet connector?
Are there any short circuits or line interruptions?
Is the correct power supplied (between 11 and 25V)?
Critical link failure. The Option Board
detects too many communication errors.
(CAN bus off.)
Check (and correct) the following items:
Are the correct pins wired on the DeviceNet connector?
Are there any short circuits or line interruptions?
Is the ground cable of the option board connected with a
ground terminal of the MX2 Inverter?
Are the MX2 installation guidelines to comply with EMC recom-
mendations properly implemented (refer to MX2 User’s manual
(Cat. No. I570) section D-1)?
Are you using the correct cable type?
If you have branches from the DeviceNet cable main line: Are
any of these branches too long?
Are the terminators mounted on both ends of the trunk only?
Is noise interference excessive?
Connection time-out. The Option Board
detects communication lost.
Check (and correct) the following items:
Are the correct pins wired on the DeviceNet connector?
Are there any short circuits or line interruptions?
Table 26 DeviceNet Errors
Display &
Indicators
Possible Cause(s)
Corrective Action
MS NS
MS NS
MS
NS
MS
NS
Summary of Contents for 3G3AX-MX2-DRT-E
Page 6: ...vi...
Page 14: ...xiv Compliance with EC Directives...
Page 20: ...6 Introduction to DeviceNet Section 1 3...
Page 46: ...32 Monitoring additional Inverter status using COS Section 4 9...
Page 56: ...42 APPENDIX A...
Page 68: ...54 Extended Speed and Acceleration Control IO 110 111 APPENDIX B...
Page 84: ...70 AC DC Drive Object Class 0x2A APPENDIX D...