Hello,
I have an old Allen Bradley 3 phase VFD (1334-EOB from 1987)
Input: 460 V , 13 A, 10.3 kva , 50/60 Hz
Output: 0-460 V , 15 A, 10.3 kva, 0-60 Hz
Looking at the parts mounted on the large heatsink toward the back of the unit - the input power is rectified and then fed into a + and a - buss bar that go to 2 large capacitors and 3 power modules (Toshiba MG50M2CK1), each module has what looks like (the component is shrink wrapped) its own smaller capacitor between the + and - buss.
This is the only information that I was able to find on the MG50M2CK1 - if someone can point me to a datasheet it would be helpful ! (I have searched quite a bit).
Description = Darlington Transistor Array
Number of Devices = 2 -------------------This is the number of Darlingtons and not an inventory #, right?
P(D) Max.(W) Power Dissipation = 350
h(FE) Min. Static Current Gain = 100
@I(C) (A) (Test Condition) = 25
@V(CE) (V) (Test Condition) = 5.0k
The modules have 5 terminals. The outermost terminals are connected to the buss bars. The output power for the motor comes from the center terminal of each module. Two twisted pairs of wires control each of the modules.
Would it be possible to turn the drive (mainly the parts that I described) into a single phase to 3 phase 230 V power supply? It wouldn't have to be variable frequency - getting 3 phase at 60 Hz would be enough to start.
Pictures of a 1334-EOB on ebay :http://cgi.ebay.com/Allen-Bradley-Ad...QQcmdZViewItem
Mine is similar except for not having its own enclosure and different small "function expander" card.
Picture of a MG50M2CK1 on ebay (no schematic or further info) :http://cgi.ebay.com/TOSHIBA-MG50M2CK...QQcmdZViewItem
I have built a basic rotary phase converter before and have no real application in mind for this device at the moment other than testing some small motors and learning something new.
Any suggested ICs? Links to information? Any input, ideas or suggestions will be appreciated.
Thanks,
-Jason