SIMOREG DC Master 6RA70 Series – SIEMENS 6RA70 Conrol Module

SIEMENS 6RA70

SIMOREG 6RA70 converters are fully digital, compact units for connection to a three-phase AC supply. They in turn supply the armature and field of variable-speed DC drives. The range of rated DC currents extends from 15 A to 3000 A, but can be expanded by connecting SIMOREG converters in parallel.

Converters for single-quadrant or four quadrant operation are available to suit individual applications. As the converters feature an integrated parameterization panel, they are autonomous and do not require any additional parameterization equipment. All open-loop and closed-loop control tasks as well as monitoring and auxiliary functions are performed by a microprocessor system. Setpoints and actual values can be applied in either analog or digital form.

SIMOREG 6RA70 converters are characterized by their compact, space-saving design. An electronics box containing the closed-loop control board is mounted in the converter door. This box also has space to hold additional boards for process-related expansion functions and serial interfaces. This design makes them especially easy to service since individual components are easily accessible.

External signals (binary inputs/output), analog inputs/outputs, pulse encoders, etc.) are connected by way of plug-in terminals. The converter software is stored in a flash EPROM. Software upgrades can easily be loaded via the serial interface of the basic unit.

SIMOREG DC-MASTER Control Module Description (6RA70)

The main application of the SIMOREG DC-MASTER Control Module (SIMOREG CM) is conversion and modernization of DC drives in existing installations. In DC technology, many installations exist that are older than 5 – 10 years and still use analog technology.

When these installations are converted or upgraded, the motor, mechanical and power sections are left in the installation and the trigger and control section replaced by a SIMOREG DC-MASTER Control Module. The result is a modern DC drive at an extremely low price, with the full functional scope of the tried and tested fully digital devices of the SIMOREG DC-MASTER 6RA70 range.

The configuration of the existing components is adapted by simple parameterization. The SIMOREG DC-MASTER Control Module contains a power section for the field supply with a rated current of up to 40A.

SIMOREG DC MASTER 6RA70 converter

The SIMOREG is a line-commutated converter which requires the line voltage to commutate the current, it is not possible to maintain the current flow on failure of the line voltage (e.g. on a short interruption).

If regenerative feedback is used with four-quadrant devices, failure of the supply voltage orSIEMENS 6RA70 a line undervoltage can cause a fuse to trip (commutation failure). This is a physical effect of the converter circuit that cannot be prevented by closed-loop control. Single-phase alternating current is fed to the field circuit and three-phase current to the armature circuit. It is not possible to operate the power section from a DC system.

The SIMOREG 6RA70 can briefly be overloaded 1.8 fold if the device had previously been operated with a base-load current which is lower than the device rated current. If the device has been operated at rated current over a longer time it cannot be operated at overload. To avoid this, the thermal condition of the thyristors is calculated in the device to ensure the protection of the power semiconductors. Once the thermal limits are reached at overload, the current is automatically reduced to the rated current of the device or the device is switched off with an error message. The overload is configured using Catalog DA21 or the instruction manual.

The 6RA70 SIMOREG DC MASTER products will be totally discontinued effective October 1, 2020. From this time onwards, the product will no longer be produced, but spare parts will be available through October, 2022 (contingent upon component availability).

As an alternative, 6RA80 SINAMICS DC MASTER devices are available as compatible and innovative replacement products.

Devices with the following MLFBs are involved in this switchover:

Rated armature supply voltage
         400 V                       460 V                           575 V                   690 V                            830 V                      950 V
6RA7013-6DV62-0 6RA7018-6FS22-0 6RA7025-6GS22-0 6RA7086-6KS22-0 6RA7088-6LS22-0 6RA7095-4MV62-0
6RA7018-6DS22-0 6RA7018-6FV62-0 6RA7025-6GV62-0 6RA7086-6KV62-0 6RA7088-6LV62-0 6RA7096-4MS22-0
6RA7018-6DV62-0 6RA7025-6FS22-0 6RA7031-6GS22-0 6RA7088-6KS22-0 6RA7093-4LS22-0 6RA7096-4MV62-0
6RA7025-6DS22-0 6RA7025-6FV62-0 6RA7031-6GV62-0 6RA7090-6KV62-0 6RA7093-4LV62-0
6RA7025-6DV62-0 6RA7028-6FS22-0 6RA7075-6GS22-0 6RA7093-4KS22-0 6RA7095-4LS22-0
6RA7028-6DS22-0 6RA7028-6FV62-0 6RA7075-6GV62-0 6RA7093-4KV62-0 6RA7095-4LV62-0
6RA7028-6DV62-0 6RA7031-6FS22-0 6RA7081-6GS22-0 6RA7095-4KS22-0
6RA7031-6DS22-0 6RA7031-6FV62-0 6RA7081-6GV62-0 6RA7095-4KV62-0
6RA7031-6DV62-0 6RA7075-6FS22-0 6RA7085-6GS22-0 6RA7097-4KS22-0
6RA7075-6DS22-0 6RA7075-6FV62-0 6RA7085-6GV62-0 6RA7097-4KV62-0
6RA7075-6DV62-0 6RA7078-6FS22-0 6RA7087-6GS22-0
6RA7078-6DS22-0 6RA7078-6FV62-0 6RA7087-6GV62-0
6RA7078-6DV62-0 6RA7082-6FS22-0 6RA7090-6GS22-0
6RA7081-6DS22-0 6RA7082-6FV62-0 6RA7090-6GV62-0
6RA7081-6DV62-0 6RA7085-6FS22-0 6RA7093-4GS22-0
6RA7085-6DS22-0 6RA7085-6FV62-0 6RA7093-4GV62-0
6RA7085-6DV62-0 6RA7087-6FS22-0 6RA7095-4GS22-0
6RA7087-6DS22-0 6RA7087-6FV62-0 6RA7095-4GV62-0
6RA7087-6DV62-0 6RA7091-6FS22-0 6RA7096-4GS22-0
6RA7091-6DS22-0 6RA7091-6FV62-0 6RA7096-4GV62-0
6RA7091-6DV62-0 6RA7097-4GS22-0
6RA7093-4DS22-0 6RA7097-4GV62-0
6RA7093-4DV62-0
6RA7095-4DS22-0
6RA7095-4DV62-0
6RA7098-4DS22-0
6RA7098-4DV62-0
SIMOREG Control Module:
6RA7000-0MV62-0
SIMOREG Converter Commutation Protector 6RA70:
6RA7085-6FC00-0
6RA7090-6KC00-0
6RA7091-6FC00-0
6RA7095-6FC00-0
6RA7095-6KC00-0
Diode rectifier:
6RL7091-6KS00-0
6RL7095-4KS00-0

SIEMENS SIMOREG DC Master 6RA70 Series Design

6RA70 converters are supplied with parameters set to the factory settings. Automatic optimization runs can be selected by means of special key numbers to support setting of the controllers.

The following controller functions can be set in an automatic optimization run:

  • Current controller optimization run for setting current controllers and feedforward controls (armature and field circuit).
  • Speed controller optimization run for setting characteristic data for the speed controller.
  • Automatic recording of friction and moment of inertia compensation for feedforward control of speed controller.
  • Automatic recording of the field characteristic for an e.m.f.-dependent closed-loop field-weakening control and automatic optimization of the e.m.f. controller in field-weakening operation.

Furthermore, all parameters set automatically during optimization runs can be altered afterwards on the operator panel.

FAQ for 6RA70 DC MASTER and SIMOREG CM

1.How easy is it to obtain 6RA7031-6GV62-0 Siemens Simoreg DC Master 6RA70 Converter Drives 6RA70316GV620?
New are no longer continuously manufactured, and therefore supply is scarce. However, at AoteWell Automation we specialize in sourcing hard-to-find products, and although the lead time varies, the average is between 5-7 business days.


2.What is the typical price for the 6RA7031-6GV62-0 Siemens Simoreg DC Master 6RA70 Converter Drives 6RA70316GV620?
AoteWell Automation always gives customers excellent service and prices that are highly competitive. Requirements for delivery and availability do affect pricing. Contact us for a timely quote on the 6RA7031-6GV62-0 Siemens Simoreg DC Master 6RA70 Converter Drives 6RA70316GV620


3.What payment options are available for purchasing the 6RA7031-6GV62-0 Siemens Simoreg DC Master 6RA70 Converter Drives 6RA70316GV620?
Payment options include all major credit cards, company checks and wire transfers. We are also able to work with escrow companies at the request of our customers.

MORE:Simoreg DC Master 6RA70 FAQ (pdf)

SIMOREG DC-MASTER 6RA70 Ordering data

modelcategorybrand
6RA7085-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7075-6DV62-0-Z S01
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7087-6DV62-0-Z
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6DV62-0-Z
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7078-6DV62-0-Z
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7031-6FS22-0-ZX01
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7082-6FV62-0-ZX01
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7090-6GV62-0-Z
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4GV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6FV62-0-ZL04
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7000-0MV62-0-Z , K01
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7018-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7025-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7028-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7031-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7000-0MV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7082-6FV62-0-Z
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4KS22
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7018-6DV52-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7091-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7031-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7075-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7078-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7087-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7087-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7091-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7018-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7025-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7028-6FV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7075-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7078-6FS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4LV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7088-6LV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4LV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7086-6KV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4KV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7088-6LS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4LS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4LS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7086-6KS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7088-6KS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4KS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4KS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7081-6GV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6GV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7087-6GV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7090-6GV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4GV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7087-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7090-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7085-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7093-4DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7025-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7031-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7075-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7081-6GS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7031-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7075-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7078-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7081-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7087-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7091-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7091-6DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7095-4DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7013-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7028-6DV62-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7031-6DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7075-6DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7078-6DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS
6RA7081-6DS22-0
SIMOREG DC-MASTER 6RA70SIEMENS

Product manuals

#FileDescriptionDate addedFile sizeDownloads
1 pdf FAQ for 6RA70 DC MASTER and SIMOREG CM FAQ for 6RA70 DC MASTER and SIMOREG CM
01/03/2018 11:03873 KB1239
2 pdf 6RA70 Series Base Drive Instruction Manual 6RA70 Series Base Drive Instruction Manual
01/03/2018 11:032 MB210
3 pdf SIMOREG DC-MASTER Control Module01/03/2018 11:037 MB267