Buffer capacitor terminal, 50 V, 500 µF EL9570
Overload 
Power contact
Power contact
Rexternal
+UIN
Rexternal
-UIN
Top view 
Contact assembly 

EL9570 | Buffer capacitor terminal, 50 V, 500 µF

The EL9570 EtherCAT Terminal contains high-performance capacitors for stabilising supply voltages. The EL9570 can be used in conjunction with the EL7041 stepper motor terminal, the EL7342 DC motor terminal and the EL7201 and EL7211 servomotor terminals. 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, thereby preventing overvoltages. If the regenerative energy exceeds the capacity of the capacitors, energy can be dissipated via an external ballast resistor.

For new projects we recommend the EL9576 with its expanded scope of functions.

Technical data EL9570 | ES9570
Technology buffer capacitor
Nominal voltage 50 V
Capacity 500 µF
Ripple current (max.) 10 A @ 100 kHz
Internal resistance < 20 mΩ @ 100 kHz
Chopper voltage > 56 V
Recommended ballast resistor see documentation
Overvoltage control range ±2 V
Ballast resistor clock rate load-dependent, 2-point control
Electrical isolation 1500 V (E-bus/field potential)
Diagnostics
Special features for new projects: please use EL9576
Weight approx. 90 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all ESxxxx terminals
Approvals CE, Ex
Related products with expanded scope of functions  
EL9576 brake chopper terminal, 72 V, 155 µF