W7DMS
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i don't think it can start the -5 , but could place a soft start unit on it?
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fdecu-5 on 10/12kw
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It should already be some sort of soft start setup as it was designed to operate on generator power. I could be wrong, but I can't find anywhere that anyone has added that and made it work. Doesn't mean it isn't possible, just that I didn't find it.
I looked through and came across a few places that all said the FDECU-5 will NOT work with the 803 series generators, but start just fine on the 804 series.
There may or may not be additional advice if you're trying to run it on a different series of generator, so if you are you might list the generator model as well.
I looked through and came across a few places that all said the FDECU-5 will NOT work with the 803 series generators, but start just fine on the 804 series.
There may or may not be additional advice if you're trying to run it on a different series of generator, so if you are you might list the generator model as well.
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So post 16 of this thread below talks about how the FDECU-5 will start occasionally on an MEP-804B but only rarely works on the MEP-804A, both of which are 15kw rated gensets
MEP-803A Starting kVa capacity
Hello, I read through the TM but don't see a listing for the starting kVa capacity. I believe the normal output can exceed 10kW a bit but have no idea what it can do for starting motors/compressors. Thanks
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That unit is rated 60A, which I assume is the running amperage. You need to look at bigger equipment to run it.
LuckeyD
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We had this issue a lot in the war zones for 10 years. I was in the spot all those issues ran thru. I can tell you for a fact, forget the 10KW.
I ran a 5 on a 804A for 6 months, and only had dust build up on the radiator causing the gen to run hot so I cleaned it twice weekly, sometimes more often. Did the ECU coils then too. The issue has to do with the circuit card in the electrical drawer. It is not in the gen. Just ensure the relays and caps are in order. You need at least an 804 for this ECU. Our 804 could handle safely 17KW on a 4 hour load test and we did not measure coil swelling. Did not matter if it was an A or B model, and we used both.
The Yanmar was touchy on settings, but once done, it handled the load just fine and even a bit more than the Isuzu. Sent ECUs and then only cards to the Manufacturer with filmed proof the gen could handle the load. It was never determined exactly why. Same gen, same ECU, change a card, best to cross your fingers. Adjustments made no difference even for factory reps. We tested many, and the circuit card was the answer. I had an SSA shipping box full of cards. There were 5 of us who deployed and we all went thru them using our ECU to test as none of us would believe it. Old cards worked, but the newest cards had issues. 3 of 5 would work but the other 2 out of the packing did not and all were set the same. Soft start, Nope, not as you know it. Staged, yes. Had one 5 that worked sometimes, and sometimes not.
I mean during one hot day, it would take a notion to not work between cycles of thermostat satisfied, to calling for cooling. During compressor starting, you PEG a 15KW measured by many of my guys with inrush, using scopes, and external test devices recording it all, and sending results to PM-MEP who worked with the factory on this one. Some talk about an imposed wave form on the Neutral went around for a bit, but this went away with testing and recording. On the cards that did not work, the factory found a 20KW Atlass that worked all of them that had no actual card issues. We were told to use a 30KW TQG at that time. Yeah, right, everyone had an extra 30KW in the hip pocket, sure. Staged, I mean they tried all valves made open so there was less head pressure. Made no difference and no difference with reversing valve in heat or cooling. I was told they tried different compressors as well.
This is what happens when you stuff so much in a small package. Your 10KW is just that. A 10KW. You will get some that will take a bit more, but you are on thin ice. I had a PSI 3 phase 20KW on site and it had no issues and ECU worked. I had cards working on a 20KW, but not on a 15. Basically a PSI 20KW is a 10W turbo charged gen over worked with relays. There are some other differences but you get the idea. All issues were finally put to rest as PM-MEP put the 60KBTU IECU into the field. All FDECU units and older same size ECUs with exception of Air Force were swapped.
I ran a 5 on a 804A for 6 months, and only had dust build up on the radiator causing the gen to run hot so I cleaned it twice weekly, sometimes more often. Did the ECU coils then too. The issue has to do with the circuit card in the electrical drawer. It is not in the gen. Just ensure the relays and caps are in order. You need at least an 804 for this ECU. Our 804 could handle safely 17KW on a 4 hour load test and we did not measure coil swelling. Did not matter if it was an A or B model, and we used both.
The Yanmar was touchy on settings, but once done, it handled the load just fine and even a bit more than the Isuzu. Sent ECUs and then only cards to the Manufacturer with filmed proof the gen could handle the load. It was never determined exactly why. Same gen, same ECU, change a card, best to cross your fingers. Adjustments made no difference even for factory reps. We tested many, and the circuit card was the answer. I had an SSA shipping box full of cards. There were 5 of us who deployed and we all went thru them using our ECU to test as none of us would believe it. Old cards worked, but the newest cards had issues. 3 of 5 would work but the other 2 out of the packing did not and all were set the same. Soft start, Nope, not as you know it. Staged, yes. Had one 5 that worked sometimes, and sometimes not.
I mean during one hot day, it would take a notion to not work between cycles of thermostat satisfied, to calling for cooling. During compressor starting, you PEG a 15KW measured by many of my guys with inrush, using scopes, and external test devices recording it all, and sending results to PM-MEP who worked with the factory on this one. Some talk about an imposed wave form on the Neutral went around for a bit, but this went away with testing and recording. On the cards that did not work, the factory found a 20KW Atlass that worked all of them that had no actual card issues. We were told to use a 30KW TQG at that time. Yeah, right, everyone had an extra 30KW in the hip pocket, sure. Staged, I mean they tried all valves made open so there was less head pressure. Made no difference and no difference with reversing valve in heat or cooling. I was told they tried different compressors as well.
This is what happens when you stuff so much in a small package. Your 10KW is just that. A 10KW. You will get some that will take a bit more, but you are on thin ice. I had a PSI 3 phase 20KW on site and it had no issues and ECU worked. I had cards working on a 20KW, but not on a 15. Basically a PSI 20KW is a 10W turbo charged gen over worked with relays. There are some other differences but you get the idea. All issues were finally put to rest as PM-MEP put the 60KBTU IECU into the field. All FDECU units and older same size ECUs with exception of Air Force were swapped.
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