SIMOTRAS HD

6SG70 Series

Converters for speed control of slipring motors with stator phase-angle control and electronic phase reversal

Applications

SIMOTRAS HD converters in the 6SG70 series are fully digital compact converters and have been developed for regulating three-phase lifting gear motors with slipring rotors in the output range up to 580 kW and for higher-level control of the drive.
For
– lifting gear
– s lewing gear
– luffing gear
– trolley travel gear
– travel gear
– auxiliary-range gearboxes
The benefits are:
– very efficient drive unit solutions in older systems
– extremely simple retrofitting resulting in significant improvements to existing systems
– low modernization costs as existing components such as motors, resistors, cables and cabinets can continue to be used
– fast, variable and user-friendly solution with low system standstill times
– very cost-effective solution for new systems
– low requirements for contactor controls and external interlocks, as important control functions are already integrated
– little planning and configuration work required
– cost-saving due to short assembly and commissioning times thanks to connection-ready compact converter technology
– very smooth travel, which helps prevent system wear
– very high level of control quality by utilizing the particular electrical advantages of the slipring motor
– very high level of control dynamics with the use of stator phase-angle control
– all standard lifting components and interfaces can be used
– no special technologies required!

Design

Series 6SG70 SIMOTRAS HD converters are characterized by their compact, space-saving construction. Their compact design makes them particularly easy to service and maintain since individual components are readily accessible. The electronics box contains the basic electronic circuitry as well as any supplementary boards.

All SIMOTRAS HD converters are equipped with a PMU simple operator panel mounted in the converter door. The panel consists of a five-digit, seven-segment display, three LEDs as status indicators and three parameterization keys. The PMU also features connector X300 with a USS interface in accordance with the RS232 or RS485 standard. The panel provides all the facilities for making adjustments or settings and displaying measured values required to start up the converter.

The converter can also be parameterized on a standard PC with appropriate software connected to the serial interface on the basic unit. This PC interface is used during start-up, for maintenance during shutdown and for diagnosis in operation. Furthermore, converter software upgrades can be loaded via this interface for storage in a Flash memory.

The power section is constructed of isolated thyristor modules. The heatsink is thus electrically isolated. The housing and terminal covers on power connections provide protection against accidental contact for operators working in the vicinity. All connecting terminals are accessible from the front.

The power section cooling system is monitored by means of temperature sensors

SIMOTRAS HD 6SG70_datasheet

SIMOTRAS HD 6SG70 Series