Storage - SHENZHEN ENCOM ELECTRIC TECHNOLOGIES CO. EN500 Series Service Manual

9 Maintenance

9.4 Storage

The user must pay attention to following points for temporary storage and
long-term storage after purchasing the inverter:
(1) Avoid storing the inverter in high temperature, moist place and place of dust,
metal powder and assure good ventilation.
(2) Longtime storage will cause low quality of electrolyte capacitance, so must
assure that it's electrified for one time within 1 year and electrification time is not
shorter than 1 hour and input voltage must be increased to rated value gradually
by voltage regulator of 250w, meanwhile the inverter should be cut off from the
motor.
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