transducer 6SE70

Central drive systems with SIMODRIVE 611

Central drive systems offer a wide performance range based on a modular design. Various closed-loop control units make it possible to combine groups of drives to form a higher-level control system. The 2-axis modules enable space-saving module configurations.

SIMODRIVE 611 is a flexible, energy-saving configurable converter system that is designed to meet the economic and technical demands made on modern machines.

With SIMODRIVE 611, Siemens provides a converter system with digital closed-loop controls which meets the highest demands in terms of dynamic response, speed setting range, and smooth running characteristics.

The converter system’s modular design makes it possible to configure drive systems with a virtually unlimited number of axes or main spindles.

The control units are inserted into the power modules.

The power modules are dependent on the power required by the motors. The infeed module is determined by the required DC link power.

The infeed module is used to connect a SIMODRIVE 611 system group to a low-voltage system with grounded neutral point (TN line supply).

All modules in the SIMODRIVE 611 converter system are of uniform modular design. The interfaces for power supply and communication, as well as the interfaces between control units and power modules, are standardized.

The SIMODRIVE 611 converter system is designed for operation in industrial environments in grounded TN-S and TN-C systems (VDE 0100, Part 300). For other network configurations, an upstream transformer with isolated windings must be used on the secondary side in a star connection with grounded neutral point (YN connection group). For voltage matching to other line supply voltages, matching transformers in economy circuit can be used for TN-S and TN-C systems. You can find transformer types matched to the SIMODRIVE 611 infeed modules under Line interfaces for voltage matching.

The infeed modules contain a 6-pulse three-phase bridge connection (B6). Ensure that compatibility is maintained for operation on residual-current protective devices (EN 50178/VDE 0160 Section 5.2.11.2; Type B).

The line filters assigned to the 16 kW and 36 kW I/R modules will restrict the leakage currents to below 150 mA.

As an alternative, an isolating transformer with secondary-side YN connection must be used in conjunction with another protective measure (N connected to housing) against hazardous leakage currents to disconnect residual-current systems which do not achieve the compatibility required.