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Safety technology

The axis controller provides scalable integrated safety technology. In the standard model the functions STO (Safe Torque Off)

and SBC (Safe Brake Control) are available. The expanded, optional “functional safety” forms, together with the central safety

control FSM, a system for axis monitoring connected via EtherCAT. This can include safe and non-safe encoders and encoder

combinations (HIPERFACE DSL®, SinCos, resolver, TTL and HTL) that are evaluated directly on the axis controller.

Field bus

The D3-DA 3xx axis controllers are designed for operation on the EtherCAT CoE field bus system. Bus cycle times of a minimum of

125 µs can be configured. Operation on alternative field bus systems such as Powerlink or PROFINet is also possible.

In operation, service and diagnostics access is by tunnelling via the central controller (EtherCAT EoE). For this purpose the controller

must support the routing function for TCP/IP communication via EoE (Ethernet-over-EtherCAT). Digital inputs are available for axis

related functions, such as limit switch or reference mark evaluation.

Central supply

D3-DA 3xx axis controllers are supplied with power and auxiliary power via a central supply unit D3-DP 300.

The number of axis controllers that can be arranged beside a supply unit is dependent on the power (power supply and auxiliary

power supply) required for the application and must be taken into account during the project planning of the multi-axis system.

A maximum of 8 axis controllers (corresponding to a maximum of 24 axes) can be operated on a supply unit.

With the aid of the expansion module, a second row can be established and in this way the number of axis controllers expanded.

Comprehensive performance scaling

The drive system KeDrive D3 offers axis controllers as single-axis, double-axis and triple-axis controllers in a power range up to

300 A for optimal system design.

Cost-effective drive systems for 4 axes (3 + 1), 5 axes (3 + 2), 6 axes (3 + 3) or more can therefore be combined without problems

and that not only for a specific sector, as the control technology meets the highest requirements even applications in the machine

tool industry are possible. Due to the innovative usage of technology, the control performance also remains identical independent of

the number of drive controller axes. Thanks to the development of a special drive ASIC, consistent performance from single-axis to

triple-axis controllers is realised.

There are also no restrictions on the usage of different encoder technologies, as proven interfaces such as resolver, sine/cosine,

HIPERFACE® or EnDAT are available along with the latest one-cable solutions to the servomotor.

The power supply

The power for the multi-axis system comes from a central supply unit in steps from 10 kW to 140 kW. While for the supply units

BG1+2 (10 – 22 kW) an integrated power supply unit (SMPS) optionally provides the 24 V/480 W auxiliary supply, for the supply

units BG3+4 (45 – 140 kW) an external 24 V supply is required. This 24 V auxiliary supply can be provided by an existing 24 V power

supply unit in the machine.

Axis controllers are arranged on the right of the supply unit on a rail system. The control modules D3-DU 3xx are mounted on the

left. The connection of the axis controllers to the DC link supply and the 24 V DC auxiliary voltage is realised without wiring effort

using the integrated busbar system. Only the 24 V DC auxiliary voltage is transmitted to the controller. Digital outputs indicate the

actual status.

The supply unit supplies the energy for the axis controllers. Configuration, diagnostics and status information are realised via the first

axis on the first axis controller in the drive group. A maximum of 9 modules are allowed to be connected and operated in the axis

group (D3-DP, D3-DC, D3-DA, D3-DE…).

Safety technology

Test outputs provide OSSD output signals. The OSSD output signals are used for the short-circuit and cross-circuit test on the

wiring for the safe, digital inputs on the axis side.

Device protection/mains contactor

A relay output is provided with which it is possible to control an external mains contactor via the controller D3-DU 3xx integrated into

the system.

Use the KEBA expertise from research and application as

well as the KeDrive D3 drive platform with active power

supply and energy storage systems for your energy-efficient

machine or plant.

• Controlled DC link voltage for uniform international

drive sizing

• Independence from worldwide mains voltages

• Optimized energy storage in the DC link

• Reduction of mains distortion (THD) and reactive power

caused by passive rectification

• Savings in grid connection costs by limiting peak power

consumption from the mains

• Controlled energy storage for dynamic applications

Active power supply units

• Energy recovery of regenerative energy into the AC grid

• Controlled DC link voltage for best drive utilization and mains independence

• Limitation of the mains input power

• Reduced mains current distortion (THD) due to sinusoidal mains currents

Controlled energy storage systems

• Temporary storage for regenerative energy

• Peak power reduction through “peak shaving”

• Bridging of mains failures (short time UPS for DC link)

Modular drive system

• Optimal integration into the KeDrive D3 drive system

• Energy efficiency due to energy exchange in the DC link

• Capacity expansion for storing short-term regenerative peaks

• Different cooling concepts

Energy management for your machine

The energy transition and rising energy costs require

sustainable and efficient solutions for machines and

factories. Electric drives account for 70 % of the energy

demand in factory automation. A considerable potential

for saving operating and installation costs.

Are you looking for a partner who will work with you to develop

and implement economical and environmentally conscious

drive solutions? What drives you as a machine builder or plant

operator and what are your challenges?

Use the KEBA expertise from research and application as

well as the KeDrive D3 drive platform with active power

supply and energy storage systems for your energy-efficient

machine or plant.