Q: We have a lathe machine with CNC control 980TD, the hardware version is 1.02.003--05.10.21 and the software version is V06.06.30g. sometimes the tool changer forgot to change tool, for example the No. 3 tool had finished its job, then it should be changed to No.4 tool to do another job, but the tool changer did not change from 3 to 4, which causes crash, what problem could it be?

A: It is about the signals of the tool changer, check the tool changer and all wiring.