I have a HMC made by Toyoda equipped with Fanuc 15M. Although machine is working fine but couple of time it's system hangs, except it's screen is ON condition, but there is no responce on operator panel, even there is no alarm message appears on the screen.
I have replaced it's power supply unit A16B-1212-0890-01 of cnc system, but no success. There is another power supply unit A16B-1310-0010 mounted on the I/O module, that I will try to replace by later time.
whenever system hangs, it's I/O module card IF01D, as there is 1 to 4 ER indicators are there & ER1 = red indicator lit ( See attached image)
Kindly somebody help me or provide me IF01D fault / error indication details.