The S263 150 A continuous stage and 263 A peak class require larger power semiconductors, conductors and thermal structure. Its 220 mm frame therefore needs a different cabinet and busbar allocation from the 85 mm S130.

They can participate in a correctly designed Kinetix 5700 common-bus system. The power supply, bus links, fusing, total capacitance and regeneration path must be sized for every attached inverter.

Control power and Ethernet can remain active without a valid dc bus or with the safety function demanding torque removal. Check bus status, contactor state, safety connection and axis enable independently.

Review frame width, current capacity, bus structure, cabling, motor compatibility, heat loss and controller configuration. The larger module is not a direct physical or electrical swap merely because both use ERS3.

Separate network ownership, safety signature, configured function and proof-test results from normal motion diagnostics. A healthy standard Ethernet connection does not prove the safety connection is valid.

Peak current is available for a limited acceleration interval and is constrained by thermal and duty-cycle limits. Continuous torque selection must use 65 A or 150 A rms and the application’s average load.