PowerFlex 70/700/753/755 & 1336 Drive – Maintenance Schedule (For 24/7 Operation)
Entire Main Cooling Fan Motor *
Entire Redundant Cooling Fan Motor *
Small Aux. Cooling Fans "Caravel"
De-ionizing Filter Cartridge
All Fittings/Connections/Hose Clamps
Cooling Pump Motors/Pumps
Thermostatic Valve Element
Power Switching
Components
Power Devices (IGBTs/SCRs)
Electrolytic Bus Capacitors *
Snubber Resistors/Sharing
Resistors/HECS
Rectifier Snubber Capacitors
Inverter Snubber Capacitors
Integrated Gate Driver Power Supply
Integral
Magnetics/Power
Filters
Isolation Transformer/Line Reactor
DC Link/Common-Mode Choke
Line/Motor Filter Capacitors
Control Cabinet
Components
AC/DC and DC/DC Power Supplies
Load Profile and other Operating/Environmental Conditions greatly affect Reliability of the Drive.