External And Internal Brake Resistor - Beckhoff AX8000 System Manual

X02 – DC link terminal AX8640
Input terminal Terminal point
DC -
R +
B
9.4.2

External and internal brake resistor

Danger to life due to high voltage on the DC link capacitors!
The DC link capacitors RB+ and RB- and the test contacts DC+ and DC- on the
supply, axis and option modules can carry life-threatening voltages of
DANGER
≥ 875 V .
DC
Take the following measures to avert danger:
• After disconnecting the servo drive from the mains supply, wait until the voltage has
fallen below 50 V
• Measure the voltage on the test contacts properly.
• Secure the work area properly and wear the PPE.
Connection instructions
Before you can connect the external brake resistor, you have to remove the bridge between
the contacts "R
Note
Connect the PE connection of the brake resistor with the central earthing bar of the control
cabinet.
X01 – brake resistor terminal AX8620
Input terminal Terminal point
R -
B
R +
B
AX8000 - system manual
All manuals and user guides at all-guides.com
Connection
DC link -
DC link +
. Only then is it safe to work.
DC
– "and "R +".
B BINT
Connection
Ext. brake
resistor -
Ext. brake
resistor +
Version: 1.0
Electrical installation
Max. wire cross- Tightening torque
section
2
16 mm (AWG 6) 1.2 – 1.5 Nm
(10.6 – 13.3 lbf in)
Max. wire cross- Tightening torque
section
2
6 mm (AWG 8) 0.5 – 0.6 Nm
(4.4 – 5.3 lbf in)
51