BECKHOFF AX5021 - Manual (Page 3)

BECKHOFF Drive Technology Brake module AX5021 – Version: 1.2 Page 3/8
Foreword
Disclaimer
The responsible staff must ensure that the application or use of the products described satisfy all the requirements for safety, including all the
relevant national laws, regulations and guidelines.
All the components are supplied in particular hardware and software configurations appropriate for the application. Modifications to hardware or
software configurations other than those described in the documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH.
The documentation has been prepared with care. The products described are, however, constantly under development.
For that reason the documentation is not in every case checked for consistency with performance data, standards or other characteristics.
In the event that it contains technical or editorial errors, we retain the right to make alterations at any time and without warning.
No claims for the modification of products that have already been supplied may be made on the basis of the data, diagrams and descriptions in this
documentation.
Appropriate use
The AX5021 brake module is intended exclusively for direct use in a drive system with servo drives from the AX5000 series. The brake modules are
installed together with the servo drives as components in electrical systems and machinery and may only be used in this way.
Scope of supply
The scope of supply includes the following components:
brake module, technical documentation and packaging
If one of the components is damaged please notify the logistics company and Beckhoff Automation GmbH immediately.
Safety
Safety regulations
The responsible staff must ensure that the application or use of the products described satisfy all the requirements for safety, including all the
relevant laws, regulations and guidelines.
DANGER
Caution – Danger of death!
Due to the DC link capacitors dangerous voltage may persist at the DC link contacts "X02" after the servo drive has been
disconnected from the mains supply. After disconnecting the servo drive wait 5 minutes and measure the voltage at the DC link
contacts DC+ and DC-. The device is safe once the voltage has fallen below 50 V.
WARNING
Caution - Risk of injury through hot surfaces!
The surface of the brake module housing can become very hot. Please ensure that the housing has cooled down below 40 °C before
touching it.
Personnel qualification
This description is only intended for trained specialists in control, automation and drive engineering who are familiar with the applicable national
standards. Knowledge of machine safety legislation is compulsory.
Product description
Using a brake module it is possible to take up additional braking power in a drive system, because the connection of an external brake resistor
without a brake module in a drive system with devices up to max. 25 A rated current is not permissible. A further advantage is the simple installation
and the small space requirement of the brake module. The brake module is equipped with a complete DC link and an internal brake resistor and
enables the connection of an external brake resistor with the integrated brake chopper. Several brake modules can be integrated into a drive
system.
Note
Operating conditions!
The brake module may only be used together with servo drives of the AX51xx-xxxx-02xx or AX52xx-xxxx-02xx series. These
devices have serial numbers above 100.000.
In addition to the AX5021, the drive system must include at least 2 further servo drives from the AX5000 range.
Electrical data
Internal resistance
Continuous braking power
P
rms
[W]
Internal resistance
Peak braking power P
peak
[W]
External resistance min.
[ Ω ]
External resistance
Continuous braking power
P
rms
[W]
External resistance
Peak braking power P
peak
[W]
150 14.000 22 6.000 max. 32,000