1. “Ed01” SPI Communication Error (Sheet 1 of 8)
SPI Communication Error: Front End Control
cannot communicate with motor drive.
Power down machine,
power up and try again.
Is there input power
to the drive?
Power up and try again.
Yes
Are the connectors
tight on the H-5 plug
on the inverter drive
and H-9 on the Front
End Control?
Tighten connectors and power
machine back on.
No
No
Continued on next page.
Yes
Yes
Check continuity of the
wires with an ohm meter:
1. H5-1 to H4-1
2. H5-5 to H4-5
3. H5-6 to H4-6
4. H5-4 to H4-4
5. H5-3 to H4-3
Do all of the wire harnesses
show continuity?
Replace or repair the necessary wires
that did not show ohm reading.
No
A
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