I'm currently about to wire one of these inverters to a CSMIO-IP/M for spindle speed and direction control. The connection diagram for the inverter shows separate grounds for analogue and digital signals. Does anyone happen to know if these can be connected to provide a common ground? If so, I could get away with a single 4-core CY cable between control box and inverter (F/R/Speed/common ground) but otherwise I shall end up with two cables (as I only have 4-core CY and not 5-core!). Not difficult if I have to go the two-cable route but it would be a little tidier if I could get away with just one.