2 application example, Application example – BECKHOFF EL9xxx User Manual
Page 51
Product overview
Terminal point
Meaning
Indication
No.
R
external
1
Connection for ballast resistor
+U
IN
2
Positive input for buffer voltage (internally connected with
terminal point 3 and 4)
+U
IN
3
Positive input for buffer voltage (internally connected with
terminal point 2 and 4)
+U
IN
4
Positive input for buffer voltage (internally connected with
terminal point 2 and 3)
R
external
5
Connection for ballast resistor
U
IN
6
Negative input for buffer voltage (internally connected with
terminal point 7 and 8)
U
IN
7
Negative input for buffer voltage (internally connected with
terminal point 6 and 8)
U
IN
8
Negative input for buffer voltage (internally connected with
terminal point 6 and 7)
3.12.2
Application example
WARNING
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
EXTERNAL
, to
burn the back loaded braking energy of the stepper motor / DC motor connected to the EL7041.
EL9xxx
51
Version 3.1