I have a power module on a Seco F6120 board, out of a Bridgeport 6F power
feed. The Seco part # is ATY4001-03, also Silicon Power Cube 8605 is on the
other side. It has six spade terminals, 120 AC in, G1, G2, + and -.
The motor it's driving is a 90V DC Boehm/Baldor. Can anyone tell me roughly
what I should be getting out of the output terminals?
Further info for anyone interested:
The replacement power module is available from Galco Industrial for $34.31,
part # is ATY4001-003. The board can be repaired for $175 at
buycontrols.com. The entire board can be replaced by any number of newer DC
drives, however this will require some rewiring and there may be space
issues. I've tested the microswitches by the forward/reverse lever and they
It depends on what is being fed to the G terminals. I suspect this is a
but 2 of the diodes are actually SCRs. With nothing on the G terminals,
be any output at the + and - terminals. The additional circuitry
pulses on the G pins to trigger the SCRs to conduct, supplying DC pulses
to the motor.
Thanks. I figured there might be more to it. I read your posts on practical
machinist regarding the power feed. I think buying a newer board and doing
the wiring conversion probably makes more sense. I don't have the expertise
to troubleshoot this board, and spending $175 to repair a 27 year old board
just doesn't make much sense. I now have a real sweet J head mounted up,
thanks to WayneMak, and getting the powerfeed working would be real nice.