Siemens 6RA8075-6DS22-0AA0 DC Converter
An active SINAMICS DCM converter with a B6C armature bridge and controllable field supply for two-quadrant drives.
Product Overview
6RA8075-6DS22-0AA0 is a Siemens SINAMICS DCM converter for controlled DC-motor operation in two quadrants. Its B6C power section supplies the armature while an integrated controllable field rectifier supports the motor field.
Successful selection depends on motor armature and field data, mains conditions, cooling, overload duty, feedback and the required control interfaces. The complete drive application should be reviewed rather than matching current alone.
Performance
- Combines the armature converter and controllable field section in one coordinated DC-drive platform.
- Provides defined overload capacity for transient machine duties when the complete thermal cycle is respected.
- Supports accurate closed-loop operation when motor, feedback and control parameters are commissioned correctly.
Technical Details
| Manufacturer | Siemens |
|---|---|
| Article Number | 6RA8075-6DS22-0AA0 |
| Product Family | SINAMICS DCM |
| Quadrant Capability | Two-quadrant |
| Armature Connection | B6C |
| Rated Armature Input | 3 AC 400 V, 174 A |
| Rated Armature Output | 485 V DC, 210 A |
| Rated Output Power | 102 kW |
| Overload Capability | 1.8 × rated current |
| Field Output | Up to 325 V DC, 15 A |
| Cooling Airflow | 300 m³/h |
| Operating Ambient | 0 to 40 °C at rated current |
| Lifecycle Status | PM300 active product |
System Integration
- Match the DC motor armature and field ratings to the complete converter duty cycle.
- Confirm encoder, tachometer or armature-voltage feedback strategy and the required automation interface.
- Coordinate upstream protection, contactors, emergency stopping and machine safety with the drive design.
Applications
- Industrial DC motor modernization
- Winders, extruders and process lines
- Two-quadrant variable-speed machinery
FAQ
Is 6RA8075-6DS22-0AA0 suitable for four-quadrant regenerative operation?
No. This article is a two-quadrant converter; regenerative reverse-power duty requires the appropriate four-quadrant topology.
What motor data is needed to select 6RA8075-6DS22-0AA0?
Provide armature voltage and current, field voltage and current, base speed, feedback, overload cycle and mechanical load profile.
Can 6RA8075-6DS22-0AA0 replace an older SIMOREG unit without changes?
A migration review is required for power wiring, field supply, control terminals, communications, parameters, enclosure and machine logic.
What cooling checks are important for 6RA8075-6DS22-0AA0?
Verify unobstructed airflow, fan operation, cabinet temperature, heat dissipation and required derating for altitude or ambient conditions.
Which commissioning records should be saved for 6RA8075-6DS22-0AA0?
Archive motor data, current limits, field settings, speed-loop values, ramps, I/O mapping, communications and fault history.
What should be included in a 6RA8075-6DS22-0AA0 enquiry?
Send the complete old-drive and motor nameplates, schematic, cabinet dimensions, feedback device, duty cycle and required network interface.
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