Siemens 6SE7021-8TP50-Z

Siemens 6SE7021-8TP50-Z belongs to SIMOVERT MASTERDRIVES MC Compact PLUS series, it is a 7.5kW DC/AC motion control inverter with rated 17.5A output current, DC input 510–650V, IP20 protection rating. This unit adopts high-dynamic vector control technology for three-phase servo and asynchronous motors, widely used for high-precision positioning and speed regulation in machine tools, printing machinery and metallurgical production lines. The suffix Z represents customized optional configurations. This series has been phased out by Siemens and mainly supplied as maintenance spare parts. The motion control inverter outputs adjustable three-phase AC power to drive motors, the motion control inverter supports fast torque response and closed-loop position control. Motion control engineers rely on the motion control inverter for multi-axis synchronization and high dynamic processing equipment. The motion control inverter can be equipped with Profibus communication card, encoder interface and safety stop function modules.

Siemens 6SE7021-8TP50-Z integrates rich built-in protection functions, including overcurrent, overvoltage, undervoltage, overtemperature and motor overload protection. It supports vector control, servo control and U/f control modes, suitable for both constant torque and variable torque loads. The high dynamic speed regulation realizes rapid acceleration and deceleration for cyclic motion tasks. Stable high dynamic speed regulation ensures repeatable positioning accuracy for continuous production. Technicians can complete parameter setting and fault diagnosis via OP1S operator panel or Simovert software. Built-in signal acquisition guarantees reliable high dynamic speed regulation even under sudden load fluctuation.

Siemens 6SE7021-8TP50-Z is widely applied in CNC machinery, textile equipment, packaging lines and metallurgical rolling auxiliary drives. Every inverter undergoes power test, signal verification and aging inspection before shipment. The multi-axis drive assembly cooperates with rectifier units and communication modules to build complete drive control systems. This inverter provides dependable multi-axis drive assembly performance for legacy production equipment. Convenient spare module replacement preserves stable multi-axis drive assembly operation to avoid production shutdown. Industrial maintenance customers select this unit for spare part repair and retrofitting of existing multi-axis drive assembly systems.