When I use Workvisual to download a program to the KRC4 control cabinet, it holds the transmission state for a long time and then reports a timeout every time, even if I've only modified one character in a file. During the download process I check the smart panel and it first shows KSS14004, after that it shows" connection to power management board lost", sometimes it also shows PMS16. I checked the electrical cabinet and there was no fuse failure. When I turn off Workvisual's timeout alarm window and cancel the remote connection in the smart panel, the "S" is still grayed out and it can be started manually.
Can anyone help me?