Maintenance 107
Reforming the capacitors
The capacitors must be reformed if the drive has been stored for a year or more. See
manufacturing date on the Type designation label (see page 35).
For information on reforming the capacitors, see Converter module capacitor
reforming instructions (3BFE64059629 [English]).
Memory unit
After replacing an inverter control unit, the existing parameter settings can be
retained by transferring the memory unit from the defective unit to the new unit.
WARNING! Do not remove or insert the memory unit when the control unit is
powered.
To remove the memory unit,
1. Undo the fastening screw.
2. Pull out the memory unit.
After power-up, the drive scans the memory unit. If a different control program or
different parameter settings are detected, they are copied to the drive. This takes
about 10 to 30 seconds.
Note: Drive does not respond while copying is in progress.
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