i have a IRB 4400 robot. When the L axis of robot is near down singualrity position. I can't move L axes of the robot go up. At same time, when I move the axle shaft 2 up then the robot's head go down. Robot display error 50056: Joint collision error. 
help with ABB IRB 4400..
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GWrobo -
June 23, 2014 at 5:42 AM -
Thread is Resolved
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Did you try to release the brake by brake pushbotton? Maybe the brake's motor is locked.
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