Mach3 Controlling Huanyang HY02D223B 2.2KW VFD

[JAZZCNC]

The spindle takes about 3s to spin up to full chat, I seem to remember setting that parameter in the vfd when first setting up.

Well don't be surprised if it takes longer than 3s when under IP-M control. The IP-M also gives you option to control the rate at which it ramps the voltage.
If it does then go into Config plugin and do what said.