Troubleshooting
8 Troubleshooting
8.1 LED Status
The 2 bicolor LEDs on the DeviceNet card indicate the
status of DeviceNet communication:
•
The lower LED (NS) indicates the net status.
•
The upper LED (MS) indicates the module status.
8
8
State
No Power
Device
operational
Standby
Minor fault
Unrecov-
erable fault
Self-test
Table 8.1 LED: Module Status (MS)
40
Bicolor LED
Off
–
Green
Green
Red
Red
Green
Red
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®
VLT
DeviceNet MCA 104
MS
NS
Illustration 8.1 LED Panel DeviceNet MCA 104
Upper left LED
Lower left LED
Status
There is no power applied to the option.
The DeviceNet option operates in normal
condition.
The DeviceNet option needs commis-
sioning due to configuration missing,
incomplete, or incorrect.
Recoverable fault.
Unrecoverable fault, may need replacing.
The DeviceNet option is in self-test
mode.
MG92F102
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