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Brake Chopper Terminal

Brake Chopper Terminal

The AKT2G-BRC-000-000 EtherCAT Terminal contains high-performance capacitors for stabilizing supply voltages. The AKT2G-BRC-000-000  can be used in conjunction with the AKT2G-SM-L15-000 or AKT2G-SM-L50-000 stepper motor drive terminals. Low internal resistance and high-pulsed current capability enable good buffering in parallel with a power supply unit. Regenerative currents are  accommodated preventing over voltages. If the regenerative energy exceeds the capacity of the capacitors, energy can be dissipated via an external braking resistor. The corresponding threshold can be directly parameterized in the KAS Software.

Product available worldwide


Technical Data AKT2G-BRC-000-000
Technology Brake chopper
Rated voltage up to 72 V
Capacitance 155 µF
Ripple current 10 A in continuous operation
Internal resistance < 10 mΩ
Overvoltage protection Standard 50 V, parameterizable via CoE data
Recommended ballast resistor ZB8110*
Overvoltage control range Standard 1 V, parameterizable via CoE data
Ballast resistor clock rate load-dependent, max. 100 µs, 2-point control
Electrical isolation 1500 V
Diagnostics Temperature on the PCBClosed
Message to E-bus Data for the switch-on behavior of the resistor as well as current and supply voltage
PE contact no
Screen connection -
E-Bus current consumption typ. 80 mA
Power consumption from power contacts 0 mA
Bit width in process image 88 bit
Electrical connection to mounting rail -
Addition to EtherCAT Terminals with power contact yes, left side without PE
Addition to EtherCAT Terminals without power contact yes
Dimensions (W x H x D) approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm)
Configuration Via CoE data
Weight approx. 90 g
permissible ambient temperature range during operation 0 °C ... +55 °C
permissible ambient temperature range during storage -25 °C ... +85 °C
permissible relative humidity 95 %, no condensation
Mounting on 35 mm mounting rail conforms to EN 60715
Vibration/shock resistance according to EN 60068-2-6/EN 60068-2-27, see also Installation instructions for enhanced mechanical load capacity
EMC immunity/emission conforms to EN 61000-6-2 / EN 61000-6-4
Protection class IP20
Installation position Any, see Mounting and Wiring of I/O Terminals
Approval CE, cULus

Media & Downloads

Title File Language Date Share URL
AKT2G I/O Manual EN English
Share URL /sites/default/files/public_downloads/AKT2G_IO.pdf
Title File Language Date Share URL
AKT2G-SDI-004-000 TUV Certification English
Share URL /sites/default/files/public_downloads/AKT2G-SDI-004%20TUV%20Certitication%20Rev.00.pdf
AKT2G-SDO-004-000 TUV Certification English
Share URL /sites/default/files/public_downloads/AKT2G-SDO-004%20TUV%20Certitication%20Rev.00.pdf
Kollmorgen EU Declaration of Conformity AKT2G (DE) English
Share URL /sites/default/files/public_downloads/ce_AKT2G%20IO_e.pdf

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