On 08/27/2020 11:57 AM, Matthew Herd wrote:
This leads me to the conclusion that either the supply somehow struggles under
load or the Geckos are introducing inordinate noise.
Geckos are known to be quite noisy. They are sending 72 V
square wave pulses at 20 KHz into the motor coils. Possibly
putting a bit of a filter on the motor wires (maybe a small
choke of 100 uH or less on each wire) might help. Also,
they send strong pulses into their metal cabinet, you might
try isolating the Gecko mounting plate from the machine
housing. Make VERY sure to route motor wires and power
wires for the Gecko drives well away from all other wiring,
and if possible have these wires cross at right angles to
any other wiring.
Jon
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