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MEGA GALAXY 5500 | Data Center & Facility 3 Phase UPS

Data Center & Facility 3 Phase UPS

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Posted in: General

MEGA GALAXY 5500

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  • eslamsaad88

    I HAVE ERROR MESSAGE SAYS EXTERNAL COMMUNICATION ERROR AND HAVE ERROR CODE 7-5-1ERROR PHOTO

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  • samanpriya

    We are also having same issue with Galaxy 5500 UPS Kindly advice.............

  • s.v.s

    External communication fault typically indicates a CAN communication fault between the installed UPS units, assuming there are more than one unit on site connected in parallel. If the UPS is a standalone unit then it could also be a configuration issue (i.e. unit is set to parallel mode). For in-depth troubleshooting and potential service I recommend reaching out to your local APC tech support as you might want an authorized service engineer to assess the UPS and installation.

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