Robots are dangerous, use this information entirely at your own risk!
ABB robots use a 24V supply to release the brakes on the axis. In certain cases when the robot is being transported it may be appropriate to release the brakes on certain axis. This requires extreme care as the robot may move suddenly and unexpectedly. It is worth noting that due to balance springs and counterweights etc the robot may move in an unexpected manner. There is also a considerable trapping risk. Be sure that all areas that the robot may move through are clear.
Almost all ABB robots use the same pins to supply 24v to the brake release button panel that is located either on the back of the robot or on the side. Note that smaller models such as the IRB 1400 and IRB240 have a single brake release button. This releases the brakes on ALL Axis.
The brake release circuit is supplied by the same pins on almost all models- however please check your connections against the circuit diagram for your specific robot type. Please note that connections to incorrect pins may cause all robot brakes to be released and / or severe damage to the robot.
In General Terms:
On robots with one 64 pole connection (IRB 6400 S4 and S4C+) on connector R1 MP connect +24v to pin B16 and 0v to pin B14.
On robots with two 32 pole connections on the back of the arm (IRB 2400 S4C) on connector R1 MP connect +24v to pin B8 and 0v to pin B7.
On Robots with a 40 pole connector (IRB 2400 S4C M98) on connector R1 MP connect +24v to pin B8 and 0v to C10
On the ABB IRB 6400R M2000 serial No 64-15011 to 64-15015 the pins 37 (0v) and 33 (+24v) are used.
On other 6400R M2000's pins 11 (+24v) and 12 (0v) are used on the 72 pin connector.
Please note the New IRC5 controlled robots use different pins for example IRB 1600 +24V to pin B8 OV to pin to C10.
When releasing the brakes start with axis 1 or an axis that will not move and listen for a click as the brake disengages.
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