NANOTEC BC72-50, Operating Instructions Manual

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1 Introduction
1 Introduction
During braking, electrical energy is fed back into the DC-link through self-induction of the motor. If not using
a power supply with regenerative-feedback capability, the brake power can cause the DC-link voltage
to increase which, if no additional measures are taken, is limited only by the internal consumption and
capacitances in the DC-link.
To prevent damage to the controller through overvoltage, it may – depending on the level of the braking
power – be necessary to dissipate excess energy in the form of heat. The brake chopper dissipates – if an
adjustable votlage value is exceeded – this excess energy via a resistor into heat.
1.1 Version information
Document
version
Date Changes Hardware
version
1.0.0 05/2021 Edition W004
1.0.1 06/2021 Improvements in Setting the switching
threshold .
W004
1.0.2 07/2021 Internal braking resistor overload leads to an
error.
W004
1.1.0 10/2021
■
Overcurrent leads to an error.
■
Added chapter Increasing the continuous
braking power
W004
1.2.0 12/2021
■
Mating connectors updated in chapter
Pin
assignment
■
Warning and safety messages updated
.
W004
1.2 Copyright, marking and contact
©
2021 Nanotec Electronic GmbH & Co. KG. All rights reserved.
Nanotec Electronic GmbH & Co. KG
Kapellenstraße 6
85622 Feldkirchen
Germany
Phone: +49 89 900 686-0
Fax: +49 (89) 900 686-50
us.nanotec.com
1.3 Intended use
The brake chopper is used as a component of drive systems in various industrial applications.
Use the product as intended within the limits defined in the technical data (see
Electrical properties and
technical data
) and the approved
Environmental conditions
.
Under no circumstances may this Nanotec product be integrated as a safety component in a product or
system. All products containing a component manufactured by Nanotec must, upon delivery to the end user,
Version: 1.2.0 3