Service and Support
Preventative Maintenance Plans
Annual Service Plan
Maintenance
- Complete the semi-annual maintenance tasks
- Check nuts, bolts, screws and connectors for tightness and heat discoloration
- Calibrate all electronic subsystems to the system specification; maintain a calibration record
- Install and perform any engineering or field recommended modifications, including software upgrades
- Measure and record phase-to-phase input voltages and currents
Maintenance Report
- Review system performance assessment and answer questions
- Issue a written inspection report
Semi-Annual Service Plan
Temperature Checks
- Breakers
- Connections
- Associated controls
- Record ambient operating temperature
Visual Inspection
- All equipment, including subassemblies
- Wiring harnesses
- Associated controls
- Contacts and major components
Inverter Module Check
- Check IGBTs and inverter boards for discoloration
- Check power capacitors for signs of damage
- Record voltage and current readings displayed on the front panel
- Measure and record all low-voltage power supply levels
- Check the appearance and cleanliness of the cabinet, ventilation system, and insulated surfaces
- Check for corrosion on all terminals and cables
- Check torque terminals, connectors, and bolts
- Check the fuses in the inverter and combiner for signs of heating
Condition Check
- Check the condition of both the AC and DC surge suppressors
- Check the operation of all safety devices, including E-Stop circuit, door switches, and GFDI
- Correct any deficiencies detected
- Inspect, clean, or replace air filter elements
Maintenance Report
- Complete maintenance schedule card
- Issue a written inspection report