looking at the doc on the gecko site: quote: (Numbering is mine)

Method One:
1) Use a shielded 5-conductor cable for your motor to drive connection; 4 of the wires go to the motor leads
2) while the 5th goes to the motor case. Return the motor case wire to the drive’s power supply ground connection.
3) Ground the shield to your electronics control box at the control box end only, leaving it disconnected at the drive end.

in my setup the PS ground is connected to the case, so isn't 1) and 2) effectively terminated at the same place and is this ok?

Thanks