MOLLOM VFD 220V 7.5KW 32A 10HP Single or Three Phase Input to 3 Phase 0-3000 Hz Output Variable Frequency Drive Control Inverter for Spindle Motor CNC Speed Control

Language barriers always persist & this is no exception. A combination between really reclusive ee engineers & their cryptic manuals & the over use of hieroglyphic icons make comprehension very difficult for even dedicated DIY. Add to it Chinese conversion to english syntax & you'll feel like your on a river in a canoe with no paddle. The saving element is "Jeff". Not sure if this one person or a crew but he/they are completely commited to providing any & all answers in the shortest response time I've ever experienced. It's for that specific reason, I'll buy another VFD from them again & again. I'm not a potential customer for an $1100 VFD from Schneider or Eaton. If that were my only choices, I never would have bought the old metal lathe in the first place. So Mollom is fill a void in the market & there's no need to compare them to the mfg. I mentioned above, that was never Mollom's goal, this is a product for a different market audience not an alternative to the same audience.

I've got lots of VFDs. Recently one of them powering an older 5 hp Oliver table saw starting erratically not working at my ranch shop. I assumed it was a Mollom and emailed Jeff at Mollom about it. He immediately offered to replace it. When I actually checked the machine, it was NOT a Mollom, lol. So, I just ordered a new VFD for the saw, and replaced the big name VFD that was on it with a Mollom. Because of Jeff and Mollom's absolute standing behind their VFD's, I always try to buy them. Yeah, I could technically have gotten away with something smaller than a 7.5 KW for 5 hp. But I know the reason for the other failure, (jeff opined that it was a capacitor problem) was overloading the VFD when bogging down on a cut (The saw can run a 16" blade). We all know that Mollom doesn't have great manuals. But the Devices work very well and the service is impeccable. Any problems or questions, they answer the same day.

We purchased this drive 3 different times and in all of them the product was not working fine. Go for American Made products for good quality.

I bought this unit to replace an old and expensive VFD by MagneTek that was no longer manufactured. The MagneTek GPD 503 Model DS309 was going to cost over $1000 to possibly repair it and cost over $3000 new if you could find one. So I thought I would try this unit. Before purchasing this unit I sent a request to the seller with some technical questions and he responded in less than a day. After purchasing and receiving the recommended unit (model VFD 220V 7.5KW 32A 10HP) I asked for configuration information for my motor (230 VAC, three phase, 19.2 amps, 1755 RPM MagneTek motor in a commercial boiler system) and within less than a day got a response back from technical support with exact parameters for my motor. I connected it up and it worked, but the motor was noisy. Another message to support was quickly answered with the suggestion to increase the carrier frequency. I did so and the noise was dramatically reduced. (I increased the carrier frequency from the default of 4 kHz to 8 kHz using F0-15.) I then asked about terminal control of speed and quickly received a reply. Overall PROS: - excellent price/value - lots of configuration options for any application - flexibility - dual display - outstanding customer support CONS: - no UL or CE listing marks - no cable/conduit management knockouts (I needed to cut a hole in the top to route control cables cleanly) - cooling fan runs full speed whenever the motor is engaged...noisy and make me wonder how long it will last. - requires time to get all options understood and set up, but support is very helpful.

I had hopes that it would work fine for my old saw. The sawneede to be cleaned up so I sanded and painted it and bought the VFD. There was a lot to do so it took about a month. I checked the wiring on the saw, it was really good then I started mounting the drive. Apparently there wasn't a manual sent with it so I searched for it, that took a week but it didn't have the info I needed, other than how to wire it. Finally emailed the right person and got the correct parameters. So I tried it, very disappointed. We've been emailing back and forth for 2 weeks. I work a lot so it's now been 3 months since I ordered it. Now it looks like a faulty VFD. If they fix the problem I will update with a little higher review. Update: the new one works fine. It took a while but at least it's working.

Good ,

Haven’t installed it yet, but I’m dinging it a couple stars for not having larger input power terminals, and for not having clear specification of the power terminal size and input current requirements.

This the 4th one of these we have purchased over the last few years. As of today we’ve had no problems with any of them or the machinery they service Easy to install Had a question regarding wiring with a braking resistor. Sent an email to support which was answered within 12 hours explains exactly what I had to do to achieve what we needed So far so good……Would buy again

Excellent VFD, provides enough power to drive a 6.5Hp 3Phase Spindle with ease. Reasonably easy to set up.

I used this on a 3 phase 10hp air compressor and using the pressure switch and a secondary switch to start and stop the unit. I sent the company a message with some questions and they replied right away with all the answers and more! Seems to be doing the job. Only downside compared to other units is where the wires tie in you have to ensure you secure your wires to keep them from pulling but other than that I don't see much of a difference between this one and others I have installed. I don't use even a quarter of the features though.

This is going to power a 5hp motor for my lathe. I managed to screw up the programming, as these are a bit different than other Chinese VFD's I am familiar with. The rep got back to me and told me how to return it to factory default. Go to FP.00 and type in 18181, then set FP.01 to 2, that's it. motor setup is as below: F1-02 set the line in voltage F1-03 set the max amps F1-05 set the RPM F0-10 set 60 cycles maximum output F0-12 set the upper freq limit F1-04 set the rated frequency of motor F0-19 set accel/decelerate time in seconds F0-17 set acceleration time seconds F0-18 set deceleration seconds And these are the ones to set and you are done. The machine and fan are much quieter than the Teco and AC Lenz drives I have which is blessing.