Replacing defective I/O modules

Proceed with particular care when replacing I/O modules. Incorrectly or improperly connected wiring can disable the overvoltage monitoring of the energy storage units. After I/O modules have been replaced, the correct wiring must therefore be checked with a special test box. Contact SEW‑EURODRIVE Service regarding this. During the warranty period, the replacement of I/O modules may be performed only by SEW-EURODRIVE Service.