EL9570 - Introduction and Technical Data
Buffer capacitor terminal
The EL9570 Bus Terminal contains high-performance capacitors for stabilizing supply voltages.
The EL9570 can be used e.g. in conjunction with the EL7041 stepper motor terminal, the EL7342 DC motor terminal or the EL7201 servomotor terminal.
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.
Technical data
Technical data | EL9570 |
|---|---|
Technology | buffer capacitor |
Nominal voltage | 50 V |
Capacity | 500 µF |
Ripple current | 10 A in continuous operation |
Internal resistance | < 10 mΩ |
Surge voltage protection | > 56 V |
Recommended ballast resistor | 10 Ω, 10 W typ. |
Overvoltage control range | ±2 V |
Ballast resistor clock rate | load-dependent, 2-point control |
Electrical isolation | 1500 V |
Diagnostics | - |
Message to E-Bus | - |
PE contact | no |
Shield connection | - |
Current consumption from E-Bus | - |
Bit width in the process image | 0 |
Electrical connection to mounting rail | - |
Electrical isolation | - |
Renewed infeed | - |
Connection facility to additional power contact | - |
Side by side mounting on EtherCAT Terminals with power contact | yes, left side without PE |
Side by side mounting on EtherCAT Terminals without power contact | yes |
Configuration | no address or configuration settings |
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 |
Dimensions (W x H x D) | approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm) |
on 35 mm mounting rail conforms to EN 60715 | |
Vibration / shock resistance | conforms to EN 60068-2-6 / EN 60068-2-27 |
EMC resistance burst / ESD | conforms to EN 61000-6-2 / EN 61000-6-4 |
Protection class | IP20 |
Installation position | variable, see chapter "Mounting of Passive Terminals" |
Approvals / markings* |
*) Real applicable approvals/markings see type plate on the side (product marking).
Ex markings
Standard | Marking |
|---|---|
ATEX | II 3 G Ex nA IIC T4 Gc |
IECEx | Ex nA IIC T4 Gc |
LEDs and connection EL9570
LED | Color | Meaning | |
|---|---|---|---|
Overload | green | off | No error |
on | Overload, energy will be absorbed in the connected ballast resistor | ||
Terminal point | Description | |
|---|---|---|
Indication | No. | |
Rexternal | 1 | Connection for ballast resistor |
+UIN | 2 | Positive input for buffer voltage (internally connected with terminal point 3 and 4) |
+UIN | 3 | Positive input for buffer voltage (internally connected with terminal point 2 and 4) |
+UIN | 4 | Positive input for buffer voltage (internally connected with terminal point 2 and 3) |
Rexternal | 5 | Connection for ballast resistor |
-UIN | 6 | Negative input for buffer voltage (internally connected with terminal point 7 and 8) |
-UIN | 7 | Negative input for buffer voltage (internally connected with terminal point 6 and 8) |
-UIN | 8 | Negative input for buffer voltage (internally connected with terminal point 6 and 7) |