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Siemens Simoreg DC Master 6RA70 converter

Series 6RA70 SIMOREG DC MASTER Base Drive Panels are complete drive assemblies ready to be installed and operated. They include a 3-phase armature converter, single-phase field converter, main contactor, protective semiconductor fuses, control power transformer, and power / control terminals. Base Drive Panels are fully digital, compact units which supply the armature and field of variablespeed DC drives with rated armature currents from 15A to 1680A. The motor field circuit can be supplied with DC currents of up to 85A (current levels depend on the armature rated current).

Description

Series 6RA70 SIMOREG DC MASTER Base Drive Panels are complete drive assemblies ready to be installed and operated. They include a 3-phase armature converter, single-phase field converter, main contactor, protective semiconductor fuses, control power transformer, and power / control terminals. Base Drive Panels are fully digital, compact units which supply the armature and field of variablespeed DC drives with rated armature currents from 15A to 1680A. The motor field circuit can be supplied with DC currents of up to 85A (current levels depend on the armature rated current).

Series 6RA70 SIMOREG DC MASTER 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 option boards. All SIMOREG DC MASTER units are equipped with a PMU simple operator panel mounted in the converter door. The panel consists of a five-digit, seven-segment display, three LED’s as status indicators and three parameterization keys. The PMU also features connector X300 with an 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 OP1S optional converter operator panel can be mounted directly in the converter door or externally, e.g., in the cubicle door. When mounted remotely, the OP1S can be connected to the converter with cables up to 5 meters (15 feet) length. Cable up to 50 meter (164 feet) in length can be used if a separate 5 VDC power supply is available. The OP1S connects to the SIMOREG through connector X300 using the RS485 interface. The OP1S can be installed as an economic alternative to conventional door mounted metering devices (i.e., voltmeters, ammeters, and speed indicator). The OP1S features a liquid crystal display with 4 x 16 characters for displaying parameter names in plain text. English, German, French, Spanish and Italian can be selected as the display languages. In addition the OP1S can store parameter sets for easy downloading to other drives. 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 through this interface for storage in flash memory. On single-quadrant converters, a fully controlled three-phase bridge supplies the armature. On fourquadrant converters, two fully controlled three-phase bridges are connected in an inverse-parallel connection to allow both positive and negative armature current. For the field converter, a singlephase, half-controlled 2-pulse bridge supplies the motor shunt field. The armature and field converters can operate with AC line frequencies from 45 to 65 Hz. If required for a specific application, the frequency of the armature and field AC supplies can be different. The armature converter 3 phase AC supply is phase insensitive however on base drives rated 1180, 1660 and 1680 amperes, the 3 phase cooling fan must be connected to get the proper direction of rotation. The power section cooling system is monitored by means of temperature sensors.

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