Brake chopper module EJ9576

EJ9576 | Brake chopper module

The EJ9576 EtherCAT module contains high-performance capacitors for stabilising supply voltages. The EJ9576 can be used in conjunction with the EJ7047 stepper motor modules, the EJ7342 DC motor modules and the EJ7211-0010 servomotor modules. Low internal resistance and high-pulsed current capability enable good buffering in parallel with a power supply unit. Return currents are stored, particularly in the context of drive applications, thus preventing overvoltages. If the regenerative energy exceeds the capacity of the capacitors, energy can be dissipated via an external ballast resistor. The corresponding threshold can be directly parameterised in the TwinCAT System Manager.

Technical data EJ9576
Technology brake chopper
Current consumption E-bus typ. 85 mA
Nominal voltage arbitrary up to 72 V
Capacity 155 µF
Ripple current (max.) 10 A
Internal resistance < 5 mΩ
Chopper voltage adjustable
Recommended ballast resistor 10 Ω, typ. 100 W (dependent on application)
Overvoltage control range typ. 1 V, parametrisable by CoE data
Ballast resistor clock rate load-dependent, max. 1 ms, 2-point control
Electrical isolation 1,500 V (E-bus/field potential)
Diagnostics temperature on board, over-/undervoltage
Special features adjustabel threshold
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Dimensions (W x H x D) approx. 12 mm x 66 mm x 55 mm
Approvals CE