On-Site Installation Installation and Commissioning
12 Product Manual IRB 640
2.5 Manually engaging the brakes
All axes come equipped with holding brakes. When the position of a manipulator axis
needs to be changed without connecting the controller, an external voltage supply
(24 V DC) must be connected to enable engagement of the brakes. The voltage supply
should be connected to the connector at the base of the manipulator (see Figure 8).
Figure 8 Connection of external voltage to enable engagement of the brakes.
External power must be connected according to Figure 8. Incorrectly connected
power can release all brakes, causing simultaneously movement of all axes.
When the controller or the voltage device is connected, illustrated above, the brakes can
be engaged separately by means of the push-buttons on the brake release unit on the
exterior of the axis 3 gear box. The push-buttons are marked with the appropriate axis
name. The names of the axes and their motion patterns are illustrated in Figure 9.
WARNING: Be very careful when engaging the brakes. The axes become acti-
vated very quickly and may cause damage or injury.
Figure 9 The robot axes and motion patterns.
0 V B14
+24 V B16
Brake release unit
1
6
5
4
3
2
Axis 3
Axis 2
Axis 1
Axis 6
NB!
Buttons 4 and 5
are not connected.