Application Example - Beckhoff EL9 Series Documentation

Terminal point
Indication
R
external
+U
IN
+U
IN
+U
IN
R
external
-U
IN
-U
IN
-U
IN
3.13.2

Application example

Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or
wiring of the Bus Terminals!
Application example
• The capacitor within the EL9570 compensates peaks on the power supply of the stepper motor / DC
motor.
• As soon as the supply voltages increases 55 V, the EL9570 switches on the brake resistor R
burn the back loaded braking energy of the stepper motor / DC motor connected to the EL7041.
EL9xxx
Meaning
No.
1 Connection for ballast resistor
2 Positive input for buffer voltage (internally connected with
terminal point 3 and 4)
3 Positive input for buffer voltage (internally connected with
terminal point 2 and 4)
4 Positive input for buffer voltage (internally connected with
terminal point 2 and 3)
5 Connection for ballast resistor
6 Negative input for buffer voltage (internally connected with
terminal point 7 and 8)
7 Negative input for buffer voltage (internally connected with
terminal point 6 and 8)
8 Negative input for buffer voltage (internally connected with
terminal point 6 and 7)
WARNING
Version: 3.9
Product overview
, to
EXTERNAL
63