Emerson NetSure 211 C23 User Manual

12 Chapter 4 Alarm Handling
NetSure 211 C23 Embedded Power Supply System User Manual
Symptom
Monitoring
module alarms
Causes
Handling methods
Yellow
indicator on
Rect protect
Current sharing imbalance
Check whether the rectifier communication is
normal. If not, check whether the
communication cable is in normal connection.
If the communication is normal while the
protection indicator is on, replace the rectifier
Power factor compensation internal
under-voltage or over-voltage
Change the position of the faulty module with
normal module. If the faulty module cannot
work normally, replace it
AC input over-voltage
Ensure AC input voltage normally
Yellow
indicator blinks
Rect Not
Respond
Rectifier communication interrupted
Check whether the communication cable is in
normal connection
Red indictor on
Rect HVSD
Rectifier over-voltage
Reset the rectifier. If the protection is triggered
again, replace the rectifier
Rect Failure
Two or more rectifiers have the same ID
number
Contact Emerson for maintenance
Serious current sharing imbalance (current
imbalance > ± 3%)
Check whether the rectifier communication is
normal. If not, check whether the
communication cable is in normal connection.
If the communication is normal while the
protection indicator is on, replace the rectifier
Red indicator
blinks
Rect Fan Fails
Fan fault
Replace the fan
Replacing rectifier fan
If the rectifier fan is faulty, it should be replaced. Refer to Figure 4-2, for the replacing procedures:
1. Use a Phillips screwdriver to remove the two fixing screws and pull out the front panel.
2. Unplug the power cable of the fan and remove the fan.
3. Plug in the new fan.
4. Install the new fan, with fan blowing-direction inward.
5. Replace the front panel.
Front panel
Fan Fixing hole
Fixing hole
Figure 4-2 Disassembling the front panel
Replacing rectifier
1. Take a new rectifier and check it for any damage.
2. Loosen the fixing screw of the handle of the rectifier with a Phillips screwdriver.
3. Press the rectifier handle to pop it out. Pull out the faulty rectifier from the rack by grabbing its handle.
Be careful with the rectifier just pulled out from the system, as it could be very hot due to long-term operation. Do not
let it slip away and get damaged.
4. Hold the rectifier handle, push the new rectifier into the slot and make sure the connection is good.

Emerson NetSure 211 C23 Specifications

General

Brand	Emerson
Model	NetSure 211 C23
Category	Power Supply
Language	English