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.
MS
Upper left LED
NS
Lower left LED
Illustration 8.1 LED Panel DeviceNet MCA 104
State
Bicolor LED
Status
No Power
Off
–
There is no power applied to the option.
Device
operational
Green
The DeviceNet option operates in normal
condition.
Standby
Green
The DeviceNet option needs commis-
sioning due to configuration missing,
incomplete, or incorrect.
Minor fault
Red
Recoverable fault.
Unrecov-
erable fault
Red
Unrecoverable fault, may need replacing.
Self-test
Green
The DeviceNet option is in self-test
mode.
Red
Table 8.1 LED: Module Status (MS)
Troubleshooting
VLT
®
DeviceNet MCA 104
40
Danfoss A/S © 12/2015 All rights reserved.
MG92F102
8
8
Содержание VLT DeviceNet MCA 104
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