Hello,
With KRC4 you switch the key, enter AUT mode, switch the key back, then enable the drives (the I in SIR, so that S and I are both green) and can then start the program.
With KRC2 you have to turn the key into AUTO position, which is in the upper left corner - make sure not to use EXT (Auto extern).
Be aware that you will still have to keep the program start key pressed until the robot has reached the first axis position, same as with T1 and T2.
There is a chance that AUT mode was disabled on your robot or that you your safety setup interferes with it.
Best,
Johannes
With KRC4 you switch the key, enter AUT mode, switch the key back, then enable the drives (the I in SIR, so that S and I are both green) and can then start the program.
With KRC2 you have to turn the key into AUTO position, which is in the upper left corner - make sure not to use EXT (Auto extern).
Be aware that you will still have to keep the program start key pressed until the robot has reached the first axis position, same as with T1 and T2.
There is a chance that AUT mode was disabled on your robot or that you your safety setup interferes with it.
Best,
Johannes