6 Troubleshooting
6 - 6
CompoNet Communications Unit User’s Manual (I582-E1)
*1 This is important if inverter parameter P046 (Assembly Instance No.) is used to change the CompoNet Communications
Unit's default Remote I/O setting.
The CompoNet Registration Table function is enabled only when a type of Remote I/O that occupies IN 2/OUT 2 words is
selected.
If you configure the function with a Remote I/O setting that occupies other than IN 2/OUT 2 words, the NS indicator will
remain flashing and therefore CompoNet communications cannot be established.
*2 P048 configuration is unnecessary because OMRON's Master Unit does not send IDLE messages.
Connection timeout
was detected.
Check (and correct) the following items:
• Are wires connected to proper pins of CompoNet
connector?
• Are there any short circuits or line interruptions?
• Is ground cable of CompoNet Communications
Unit connected with chassis ground of inverter?
Is chassis ground of inverter connected securely
to ground?
• Are you using proper cable type?
• If you have branches from CompoNet cable trunk
line: Are any of these branches too long?
• Are terminating resistors mounted only on both
trunk ends?
• If noise interference is excessive, take the follow-
ing corrective action.
Noise reduction by means of isolation from noise
source, shielding, or noise filtering.
MX2
Error Codes &
Indicators
RX
Error Codes &
Indicators
Assumed Cause
Corrective Action
MS NS
MS
NS
Summary of Contents for 3G3AX-MX2-CRT-E
Page 94: ...3 Network Startup 3 36 CompoNet Communications Unit User s Manual I582 E1...
Page 118: ...4 Remote I O 4 24 CompoNet Communications Unit User s Manual I582 E1...
Page 134: ...5 Message Communications 5 16 CompoNet Communications Unit User s Manual I582 E1...
Page 167: ...I 1 I CompoNet Communications Unit User s Manual I582 E1 Index...
Page 171: ......