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APC Galaxy VX — is a powerful three-phase VFI (online double conversion) UPS system designed to protect critical loads in large data centers, industrial enterprises and critical infrastructures. The power range — from 500 to 1500 kVA. Galaxy VX supports work with traditional VRLA and modern lithium-ion batteries, has a modular architecture, the ability to work in parallel with redundancy (N+1/N+X), integration with EcoStruxure™, SmartSlot, Modbus, SNMP. This level of complexity requires periodic high-precision diagnostics of the entire system.
What diagnostics include
Inspection / audit
- Inspection of the physical condition of the cabinets: power, battery, bypass, inverter and cables.
- Evaluation of the system configuration: number of power and battery modules, active channels, redundancy.
- Analysis of operating conditions (temperature, humidity, dust, ventilation, grounding).
- Review of event logs via the built-in HMI or external monitoring interface (EcoStruxure, SNMP).
Electrical tests
- Checking input voltage (LL, LN), frequency, phase sequence and distortions.
- Analysis of output voltage in different modes: normal, on batteries, via bypass.
- Evaluation of voltage quality (harmonics, stability, THDv) under different load levels.
- Switching testing: inverter ↔ bypass, mains ↔ Battery with response time measurement.
Checking inverters, bypass, charging systems
- Checking each inverter module: voltage, current, temperature, phase symmetry.
- Evaluating the operation of automatic and manual bypass, checking synchronization with the network.
- Monitoring the operation of rectifiers and chargers, checking the charge current control logic.
- Testing parallel mode: system response under load, presence of resonances or imbalance.
Battery (VRLA or lithium-ion)
- Reading battery parameters via BMU: voltage, temperature, internal resistance, SOH/SOC status.
- Assessing battery degradation, presence of failed or unbalanced cells (especially in Li-ion).
- Autonomy test under controlled load (real or simulated).
- Checking the communication parameters of the battery cabinet with the main UPS controller (Smart Battery Management).
Cooling
- Checking the operation of fans: activity, noise level, rotation speed under load.
- Testing temperature sensors in modules: protection of the inverter, rectifier, batteries, BAPS.
- Assessing air circulation in cabinets and cleaning filters (if available).
Communications / monitoring
- Checking the operation of the HMI display: presence of errors, warnings, software updates.
- Testing interfaces: Modbus, SNMP, SmartSlot, Dry Contacts, USB, Ethernet.
- Reading logs (Data Logs, Event Logs) and analyzing the history of failures or alarms.
- Checking the connection with BMS or DCIM systems (for example, EcoStruxure IT).
Technical report
- Generation of a report with the parameters of each unit: power, battery, ventilation, monitoring.
- Separate conclusion on the condition of the batteries and recommendations for further operation.
- Detailed list of event/error codes with explanation and recommendations.
When diagnostics are required
- Every year or according to Schneider Electric regulations (or more often in critical conditions).
- After emergency bypass, failures or Fault/Battery Warning messages are triggered.
- Before connecting new equipment or changing the system configuration.
- After replacing the battery, expanding or after an emergency power off.
Why choose Total-Energo LLC
- Certified engineers specializing in Galaxy VX and other APC Schneider Electric series.
- Experience servicing systems with a capacity of over 1 MVA with parallel architecture.
- Original diagnostic software and tools compatible with Galaxy VX and EcoStruxure™.
- Providing a full technical report, battery life forecast and recommendations for system optimization.