Mep 016e

[dan2002dd]

I recently purchased a MEP 016E. It was missing the voltage regulator. I bought the SX460 and wired it in place. I put in the 5 amp fuse as shown on one of the details I found. After starting it up, it was only putting out about 33 volts set to the 120V 1P setting. I tried adjusting the voltage but nothing changed. I checked the voltage with a meter as well to ensure the guage was correct. After shutting it back down, I found the 5 amp fuse blown.

Now it was back to checking wiring, All the generator wires T1-T6 and Field leads were disconnected when I bought this and using the wiring diagram inside the box, I reconnected everything. I remember reading on here about an updated wiring that included gounding the L0 terminal. I could not find anything on here describing that change, But this has apparently been done and the L0 is connected differently than the diagram. So I could just go back to how the diagram shows but I want to know more details as to why this was rewired and should I leave it that way.

I have the TM for the 016B but couldn't find anything on the 16E. Anybody got any recommendations or more info on this new wiring. I would like to leave it with the ability to switch to 3P.

 

[ETN550]

I deal with a lot of these units and so far have found no explanation or literature on the grounding mod that was done to most of them. I believe the phase selection switch is also modified or replaced in the ground mod application. All I can say is that the units with the ground mod have a green sticker on them. If the mod is done the unit can produce 240/120 using L0 as the neutral just like a breaker panel in a house.

Check and see if the wiring on your switch corresponds to the diagram. If not then the mod may have been done.

I never installed a SX460 although I have one on hand if I need it. I think the field (+) and (-) must be matched from the gen to the reg. Replace the fuse and try swapping the field wires on the SX-460.

Issac and others have worked with the SX-460 maybe they will chime in.

I recently purchased a MEP 016E. It was missing the voltage regulator. I bought the SX460 and wired it in place. I put in the 5 amp fuse as shown on one of the details I found. After starting it up, it was only putting out about 33 volts set to the 120V 1P setting. I tried adjusting the voltage but nothing changed. I checked the voltage with a meter as well to ensure the guage was correct. After shutting it back down, I found the 5 amp fuse blown.

Now it was back to checking wiring, All the generator wires T1-T6 and Field leads were disconnected when I bought this and using the wiring diagram inside the box, I reconnected everything. I remember reading on here about an updated wiring that included gounding the L0 terminal. I could not find anything on here describing that change, But this has apparently been done and the L0 is connected differently than the diagram. So I could just go back to how the diagram shows but I want to know more details as to why this was rewired and should I leave it that way.

I have the TM for the 016B but couldn't find anything on the 16E. Anybody got any recommendations or more info on this new wiring. I would like to leave it with the ability to switch to 3P.

 

[dan2002dd]

Thanks, I will check for the green sticker. The phase selection switch wiring does not match the diagram on this machine. So I really have no way of knowing if wiring the rest by the diagram was correct?

I will check the field pos and neg, that was one thing I was unsure if there was a difference between them. Is there a test to verify polarity for them?

 

[dependable]

I believe the 16E is a 16B repowered with yanmar or similar, so your 16B manual should help with the electrical side, except the manual is not totally accurate. To test if neutral mod was done, and it does not have a green sticker, switch to 240 1 Phase, test between LO and L1 and L0 and L2, both of these should read 120v. If you are using a multimeter, it has been noted that you should have some load while testing so you get accurate reading.

 

[dan2002dd]

I haven't had time to test anything yet but did look at it today and found the sticker stating "Grounding Safety Modification Complete" but it is silver on mine. I attempted to post a picture but couldn't get it to load from my phone. So if the mod is done does it still have 3 phase or will I mess it up attempting to run it on 3P? When I am able to test it, I will try it on 240 1P.

 

[Isaac-1]

I saw this thread earlier today, and planned to take a look at what I have done on my MEP-701a again this afternoon before replying, but got caught up in installing new batteries on my MEP-002a and swapping out its AVR board, and by the time I was done the sun was going down. Weather permitting I will try to take a look at the MEP701a / SX-460 wiring tomorrow.

Ike

 

[dan2002dd]

Briefly started the unit up tonight on 240 volt 1p. Didn't run it long but the volts went to around 120 but the hertz pegged out. I saw what looked like sparking over on the side and quickly shut it down. I forgot to look at the field wires polarity and the 5 amp fuse was blown again leading to the sx460.

 

[dan2002dd]

Reversed the field coils and there was no output. Remove the ground to L0 and the fuse stopped blowing. I am just going to rewire per the diagram unless someone can help with the new grounding mod.

 

[dan2002dd]

Update: I disconnected the grounding mod and the fuse stopped blowing. Voltage was low and had to be turned up on the voltage regulator. Voltage output is now correct. Hertz was a little high and after backing the adjustment all the way down, it was still high. I ground down the coupling (holding the rod and screw together) slightly and that gave me the adjustment needed. Now everything is working as it should except the voltage adjustment on the control panel works in the opposite direction as it should. I tried reversing the connection at the voltage regulator going to the adjustment but did not change anything. Anyone have suggestions for correcting this?