160 Maintenance
Memory unit
When a drive is replaced, the parameter settings can be retained by transferring the
memory unit from the defective drive to the new drive. One memory unit is located on the
drive control unit (motor-side converter control unit), see page 114, another on the line-
side converter control unit.
WARNING! Do not remove or insert the memory unit when the drive module is
powered.
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 can take several
minutes.
Replacing the memory unit of the motor-side converter control unit
(frame R11)
WARNING! Obey the instructions in chapter Safety instructions. If you ignore
them, injury or death, or damage to the equipment can occur.
1. Stop the drive and do the steps in section Electrical safety precautions on page 16
before you start the work.
2. Open the cabinet doors. The control unit is located on the module-side swing-out
frame. For the location, see also Cabinet layout.
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