International English 2 Installation
MICROMASTER 440 Operating instructions
6SE6400-5CA00-0BP0
21
2.1 General
Installation after a Period of Storage
Following a prolonged period of storage, you must reform the capacitors in the
inverter. It is important that the time of storage is calculated from the time of
manufacture and not the time of delivery. The requirements are listed below.
Period of
Storage
Required Action
Preparation
Time
1 year or less No reforming required No preparation
1 to 2 years
Apply power to the inverter for one hour before issuing the run
command
1 hour
2 to 3 years
Use a variable AC supply
Apply 25% of input voltage for 30 minutes
Increase volts to 50% for a further 30 minutes
Increase volts to 75% for a further 30 minutes
Increase volts to 100% for a further 30 minutes
Inverter ready for run signal
2 hours
3 years and
over
Use a variable AC supply
Apply 25% of input voltage for 2 hours
Increase volts to 50% for a further 2 hours
Increase volts to 75% for a further 2 hours
Increase volts to 100% for a further 2 hours
Inverter ready for run signal
8 hours
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