If the green lamp of a connected power supply unit is not lit any more during operation, the appropriate power supply slide-in module must be replaced.

1 Fastening screws

1. Loosen the fastening screw which is used to secure the power supply slide-in module at the rack.

2. Pull out the power supply slide-in module.

3. Replace the power supply slide-in module with the module of the same type (available at iba).

4. Fasten the power supply slide-in module with the fastening screw.