Memory unit
When a drive module is replaced, the parameter settings can be retained by transferring
the memory unit from the defective drive module to the new module. One memory unit is
located in the external control unit, see Overview of power and control connections, another
on the line-side converter control unit.
WARNING!
Do not remove or insert the memory unit when the control unit is powered.
■ Replacing the memory unit
After replacing a control unit, you can keep the existing parameter settings by transferring
the memory unit from the defective control unit to the new control unit.
WARNING!
Do not remove or insert the memory unit when the control unit is powered.
1.
Stop the drive and do the steps in section Electrical safety precautions (page 18) before
you start the work.
2. Make sure that the control unit is not powered.
3. Remove the fastening screw and pull the memory unit out.
4. Install a memory unit in reverse order.
166 Maintenance