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PCW wrote: Yes, you should be able to wire directly
One caution: VFDs are often very noisy electrically so its better to feed the
7I77s analog out and GND signals through a common mode choke
( a large ferrite bead ) on the connecting cable to avoid introducing this noise
into the rest of the system
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PCW wrote: Both will help
Note that if you have a common mode choke on the motor leads, it needs
to be a single core over all 3 (UVW) motor wires. Like wise, the core for
the analog out and 7I77 Gnd to the VFD should be a single core over
both analog out and Gnd.
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