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UPS5000E-120kVA. --- Alarms ( 0004; 0011; 0014) what should be done?

Publication Date:  2016-03-29 Views:  159 Downloads:  0
Issue Description
There was  reported Alarms on the UPS5000E . The alarm were also displayed on the MDU, and also the Alarm Led on the bypass module was ON.
Alarm Information

The below Alarm were triggered:

• Alarm  0004-1 < Mains phase Reversed>
o Warning level: Minor
o Location: Mains input wiring connection
o The impact on the system: The UPS  switch to battery power mode. Without  battery, the system to switch off the rack.
o Possible cause: Mains input wiring error
o Measure: Check whether the phase sequence is correct based on the phase sequence table. If no multimeter is available, exchange the connection  positions of any two cables.

• Alarm 0011-1 < Bypass phase reversed>
o Warning level: Minor
o Location: Bypass input wiring connection
o The impact on the system: Bypass power supply is prohibited;
o Possible cause: Mains input wiring error
o Measure: Check the bypass input Three-phase wiring. If no multimeter is available, exchange the connection positions of any two cables.

• Alarm  0014-2 < Does not match the number of modules>
o Warning level: Minor
o Location: Monitoring power module – parameters settings 
o The impact on the system: On the modules cannot be established a  normal communication and monitoring
o Possible cause: The number of power module is not correct. The number of the power modules configurated on the UPS display do not match with the installed ones.
o Measure: Check the communication parameter number of the power modules

- The alarm Led of the bypass module was on.


Handling Process

1. Check whether the Mains  phase sequence is correct based on the phase sequence table. If no multimeter is available, exchange the connection  positions of any of the two cables. A standard UPS can connect to a three-phase, five wire (L1, L2, L3, N, PE) TT, TN-C, TN-S, and TN-C-S AC power distribution system.

For reference, please see the below pic.:

2. Check whether the Bypass  phase sequence is correct based on the phase sequence table. If no multimeter is available, exchange the connection  positions of any of the two cables.

3. Check the communication parameter number of the power modules.  For this go on Settings>Advance Param.>Requisite modules.
For 120kva UPS capacity , if the all 40kva power modules are used, then the  Requisite modules=3

For reference, please see the below pic.:




Solution
- Change  the order of input power cables and  the system came back to the proper working mode.
- Modify the  communication parameter >>  power request modules number (Requisite modules=3)

END