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6 Troubleshooting
6 - 4
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 Com-
munications 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 indi-
cator will remain flashing and therefore CompoNet communications cannot be established.
Additional Information
If an error occurs on a communications line, a detailed error code is displayed on the LED dis-
play of the Master Unit.
Check this error code and take corrective action according to Section 8 Troubleshooting of the
CS/CJ-series CompoNet Master Units Operation Manual (W456).
NS
(Network
Status)
Green
Lit
Online/
Communica-
tion connection
established
Network is in normal commu-
nication state.
(Communications estab-
lished)
–
Flashing Online/
Communica-
tion connection
not established
Network operates normally,
but communications with
Master Unit are not estab-
lished.
• Check the number of words
occupied by input/output
assembly in registration table,
correct it to match Remote I/O
setting, and restart CompoNet
Communications Unit.
*1
• Power on Master Unit.
Red
Lit
Fatal communi-
cations error
CompoNet Communications
Unit detected a communica-
tions error that disabled Com-
munications.
• Node address duplication
• Network error
Take the following actions and
cycle the power supply.
• Correct node address duplica-
tion.
• Connect a terminating resistor
to each end of communications
line.
• Correct improper connections
on communications line.
• Correct Master Unit error.
• Take environmental measures
such as noise isolation.
Flashing Minor communi-
cations
error
CompoNet Communications
Unit detected a communica-
tions timeout error.
Take the following actions and
cycle the power supply.
• Connect a terminating resistor
to each end of communications
line.
• Correct improper connections
on communications line.
• Take environmental measures
such as noise isolation.
-
Not lit Power OFF
• Power is not supplied to
CompoNet Communica-
tions Unit. (Check Module
Status LED.)
• Checking for node address
duplication (intermediate
state)
• Cycle inverter's input power
supply.
• Check CompoNet Communica-
tions Unit connector and turn
on inverter's input power.
Replace CompoNet Communi-
cations Unit if error persists.
Indicator
Name
Indication
Operation
State
Description
Corrective Action
Color State
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: ......