kamenges
Member
I have two ACS355 drives (240V, 1HP) each connected to a Marathon Black Max 1HP motor. In both cases, very shortly after I start the drives immediately to 5 seconds) the drives will fault on overcurrent.
I initially had the drives set up to operate in vector speed mode. When this issue popped up I changed to scalar mode and the same thing happens. I disconnected the motor leads from the drives and started them in scalar mode and I still get an overcurrent fault, which seems like quite the trick. With the motors disconnected the current feedback value displayed on the drive never moves from zero but the drive faults on overcurrent. Both of them. Connected to different motors or not connected at all.
Any ideas? It almost has to be a set-up issue but I have no idea what would cause something like this. I have never seen such a thing before; at least not from two brand-spankin'-new drives.
Keith
I initially had the drives set up to operate in vector speed mode. When this issue popped up I changed to scalar mode and the same thing happens. I disconnected the motor leads from the drives and started them in scalar mode and I still get an overcurrent fault, which seems like quite the trick. With the motors disconnected the current feedback value displayed on the drive never moves from zero but the drive faults on overcurrent. Both of them. Connected to different motors or not connected at all.
Any ideas? It almost has to be a set-up issue but I have no idea what would cause something like this. I have never seen such a thing before; at least not from two brand-spankin'-new drives.
Keith