Multi-axis servo drive
Bosch Rexroth ctrlX DRIVE (modular IP20)
Modular cabinet servo system of XCS2/XCD2 converters, XMS2/XMD2 single- and double-axis inverters and XVE1/XVR2 supply units, 200 to 500 V AC, with peak currents from 6 A to 375 A (series maximum).
Key specifications
| Power | 200–100,000 W |
|---|---|
| Supply | 200–500 V AC mains |
| Feedback | AcuroLink standard; resolver, HIPERFACE, EnDat 2.2, 1 Vpp via multi-encoder option |
| Fieldbus | Multi-Ethernet: Sercos III, EtherCAT (standard) |
| Axes | single-axis and double-axis inverters plus supply units |
| Peak current (max) | 375 A |
| Safety | SafeMotion (SafetyLink, FSoE) optional on ctrlX DRIVE plus control unit |
| Safe torque off | STO standard |
| Supply units | XVE1 feeding 30/75/120 kW DC bus continuous; XVR2 regenerative 19/48/72/100 kW |
| Control loop cycle | current 62.5 µs, speed 125 µs, position 125 µs |
Summarised in our own words from Robert Bosch GmbH's published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1 · Source 2
Notes on this data
Power range 0.2–100 kW is the overall ctrlX DRIVE system figure from the portfolio page; continuous currents for the modular IP20 devices are not tabulated there.
Specify Motion is not affiliated with Robert Bosch GmbH. Bosch Rexroth and ctrlX DRIVE (modular IP20) are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Bosch Rexroth part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These series from our supply network is the closest match on published figures.
A dual-axis low-voltage Kinco drive for AGV differential-drive wheels, with RS + CANopen or RS + pulse variants and built-in brake output.
View series →Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
What a multi-axis servo drive is
A multi-axis servo drive controls two or more servo motors from one unit, usually sharing a power supply, DC bus and communication interface. Formats include compact two- to four-axis drives in one housing and modular systems with a common supply module and separate axis modules. Sharing the bus lets energy from a decelerating axis be used by others, reducing braking losses. Most connect to a motion controller or PLC over EtherCAT or another industrial Ethernet network.
When engineers choose a multi-axis servo drive
Choose a multi-axis drive for machines with several coordinated servo axes in one cabinet, such as robots, packaging machines and gantries. It saves space, wiring and cost per axis compared with single drives. The trade-offs are flexibility and fault isolation: axes share the supply, so a supply fault affects all axes, and replacing one module may need specific spare strategy. Mixing very different power levels can be limited by module ranges.
How to specify the Bosch Rexroth ctrlX DRIVE (modular IP20)
Send these with your enquiry and an engineer can confirm the right ctrlX DRIVE (modular IP20) variant or an equivalent:
- Number of axes and power per axis (A, kW)
- Supply voltage (V AC or DC)
- Network interface and cycle time
- Motor and feedback types
- Shared bus and regenerative energy handling
- Safety functions per axis
- Cabinet size and cooling
Common mistakes to avoid
- Sizing supply module for the sum of peaks without considering simultaneous demand
- Ignoring how one fault affects all axes
- Choosing modules without room for future axes
- Overlooking network cycle time with many axes
Bosch Rexroth ctrlX DRIVE (modular IP20): frequently asked questions
What is the Bosch Rexroth ctrlX DRIVE (modular IP20)?
Modular cabinet servo system of XCS2/XCD2 converters, XMS2/XMD2 single- and double-axis inverters and XVE1/XVR2 supply units, 200 to 500 V AC, with peak currents from 6 A to 375 A (series maximum). Published series figures include power 200 W, power 100,000 W, peak current 375 A. It is made by Robert Bosch GmbH; Specify Motion can help source it or propose an equivalent.
Who makes the Bosch Rexroth ctrlX DRIVE (modular IP20)?
The Bosch Rexroth ctrlX DRIVE (modular IP20) is made by Bosch Rexroth (Robert Bosch GmbH) and is listed here for engineers comparing options. Specify Motion is not affiliated with Robert Bosch GmbH; brand names are used only to identify the product.
What is the power of the Bosch Rexroth ctrlX DRIVE (modular IP20)?
The published series minimum power is 200 W. Individual models and sizes in the ctrlX DRIVE (modular IP20) range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Bosch Rexroth ctrlX DRIVE (modular IP20)?
Yes. On published figures, Kinco FDS Two-in-One Low-Voltage DC Servo Drive (FDS-AB/CB/LB-D) is the closest match from our supply network. An engineer confirms the fit against your application before recommending anything.
What are the benefits of a shared DC bus?
On a shared DC bus, energy regenerated by a decelerating axis can be used by other axes that are accelerating, reducing the energy dissipated in braking resistors. It also reduces wiring and supply components. Sizing must consider simultaneous peak demand on the shared supply.
Are multi-axis drives cheaper than single-axis drives?
Typically, per axis, multi-axis drives cost less and take less cabinet space, because the supply, communication and housing are shared. The saving grows with the number of axes. For machines with only one or two axes, or widely separated axes, single drives can be simpler.
Further reading: How to select a multi axis servo drive · How to select a servo drive · Servo drives
Other multi-axis servo drive series
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