Post-Startup Checklist
After powering on the device, you need to check whether the device is running properly based on the post-startup checklist.
NOTE: This section provides post-startup checklist for an AC-powered device. For post-startup checklist for a DC power device, use the post-startup checklist for an AC-powered device as a reference.
Post-Startup Check Flowchart
The following figure shows the post-startup check flowchart.
Post-Startup Checklist for the EPW50-48A
Before checking the device, switch all circuit breakers on the EPW50-48A to the OFF position.
The following figure shows the indicators on the EPW50-48A.
1. Operation indicator |
2. Protection indicator |
3. Fault indicator |
The following table provides the checklist for the EPW50-48A.
Item |
Indicator Color |
Status Description |
Cause of the Abnormality |
|---|---|---|---|
Operation indicator |
Green |
If the indicator is steady green, the EPW50-48A is running properly. If the indicator is off, an exception occurs. |
No main AC power is input, the AC input voltage is higher or lower than the normal range, or the EPW50-48A has no output. |
Protection indicator |
Yellow |
If the indicator is off, the EPW50-48A is running properly. If the indicator is on, an exception occurs. |
A temperature alarm is generated (if the temperature exceeds 65°C, the EPW50-48A will be powered off), or the EPW50-48A is in the dormant state (the indicator is on and no alarm is generated). |
Fault indicator |
Red |
If the indicator is off, the EPW50-48A is running properly. If the indicator is on, an exception occurs. |
The EPW50-48A is powered off due to over-voltage or over-temperature, or fans are faulty, or the EPW50-48A has no output due to its internal faults |
DC output voltage |
- |
The normal voltage ranges from –43.2 V DC to –57 V DC |
- |
Post-Startup Checklist for the Device
The following table provides checklist for the device.
Component |
Indicator |
Color |
Status Description |
|---|---|---|---|
Power entry module (PEM) |
RUN |
Green |
If the indicator is steady green, the PEM has normal output. |
ALM |
Red |
Fault indicator. If the indicator is steady red,
|
|
Fan module (FAN) |
STATUS |
Green |
If the indicator blinks green once every two seconds (0.5 Hz), the FAN is working properly. |
Red |
If the indicator is steady red, the FAN is faulty, or the PEM is faulty. |
||
MPU |
RUN |
Green |
From the MPU being powered on until it is registered, the indicator status changes in the sequence of off–blinks once every 500 ms (2 Hz)–off–steady on–blinks once every two seconds (0.5 Hz). After the MPU is registered, the MPU is working properly if the indicator blinks at 0.5 Hz. NOTE:
Possible causes for the indicator being off are:
Possible causes for the indicator blinking quickly are:
|
ALM |
Red |
If the indicator is steady off, the MPU is in the normal state. If the indicator is steady red, an alarm is generated. |
|
SFU |
RUN |
Green |
From the SFU being powered on until it is registered, the indicator status changes in the sequence of off–blinks once every 500 ms (2 Hz)–off–steady on–blinks once every two seconds (0.5 Hz). After the SFU is registered, the SFU is working properly if the indicator blinks at 0.5 Hz. NOTE:
Possible causes for the indicator being off are:
Possible causes for the indicator blinking quickly are:
|
ACT |
Green |
If the indicator is steady green, the SFU is working properly; if the indicator is off, the SFU is faulty. |
|
LPU |
RUN |
Green |
From the LPU being powered on until it is registered, the indicator status changes in the sequence of off–blinks once every 500 ms (2 Hz)–off–steady on–blinks once every two seconds (0.5 Hz). After the LPU is registered, the LPU is working properly if the indicator blinks at 0.5 Hz. NOTE:
Possible causes for the indicator being off are:
Possible causes for the indicator blinking quickly are:
|
Link/ACT |
Green |
|
The following figure shows the front view of the NE40E-X8.
The following figure shows the rear view of the NE40E-X8.
NOTE: For more information about indicators, see Hardware Description.
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