too good to be true grinder quit

Wilfred17

Wilfred17

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Jan 18, 2016
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having a problem with my new KMG. 220 volt 2hp Westinghouse 3 phase motor, and as far as I can tell a huanyang HY01D523B vfd 1.5 kw. seemed to work fine for about a week, although it took a while to start running after I turned the power on maybe 30 seconds , did that regardless of where I had speed set. Now it does nothing, the vfd lights up , the speed readout changes as I turn the speed knob , but motor doesn't turn on. I have the manual but it may as well be written in Mandarin because I don't know anything about this stuff. any help on how to proceed would be greatly appreciated . thanks
 
still flashes, the screen now has what seems to be a backwards 7 and four zeros ( all flashing)
 
Couple more things:

Try hitting the red stop button a couple of times (hold it in for 5 seconds as well), followed by the green run button. The goal is to see the FOR (forward) button turn solid red.

If that doesn't do anything, then you'll have to double check your parameters. It's possible that you lost or changed settings somehow and need to reprogram.

If you press the "PRGM" button, it will change the display to Pd001. If you hit "SET" then it will show you the current value setting, hitting "SET" again will lock this setting in and advance to Pd002, Pd003 and so on...

Can you share what you have for the first 14 parameters or so?
 
I didn't set any of the parameters, the guy I bought it from did all of that , he just told me if you don't understand this don't touch anything.its in a metal box with filters on the sides a three way direction switch and the speed knob. I will go try your suggestions now . thanks for taking the time on this
 
Is the unit plugged into a circuit that has ground fault interrupters in it ?

Is it actually chinese or just so so ?

There should be a chart that tells you what the lights mean, jump straight to that and tell us what it is
 
I hit prgm, comes up pd000 with last zero flashing, I hit set it said f15.48 then back to pd000. also no GFCI in circuit. digging out manual now
16495559410392475529077007592249.jpg
 

This manual should work for your VFD. Starting at page 19 is the list of parameters, their settable ranges, and their default settings.
If you start at page 26, there's a description for each individual parameter.

Most of them should still be at the default setting, and/or won't apply to anything you're doing. The only settings that need to be changed or might affect your VFD, will be mostly within the first handful of parameters, and have to do with the motor and voltage settings and such, and things like max frequency, which you probably want to set to no more than 120hz. Make sure your base frequency is set to 60hz (if you're in the US).
 
Drew has got you good advice so I won't comment on any of that. BUT (always a "but":) - in the first post you mention when it was operating ok it always took at least 30 seconds for the motor to start turning? Something ain't right! You did mean for the motor to actually start turning? Not 30 seconds to reach full speed?

There is a parameter that gives the acceleration time, I have my VFDs set to 3 seconds (5?). When I press the RUN button the motor starts almost immediately taking 3 seconds (5?) to reach full speed.

Your huanyang HY01D523B vfd should be a good unit - In the past I used the Huanyang but now use a clone since it's less expensive. I've got 4 of them running now.

Good luck, and it seems Drew has you well in hand.
 
Ken H> said:
Drew has got you good advice so I won't comment on any of that. BUT (always a "but":) - in the first post you mention when it was operating ok it always took at least 30 seconds for the motor to start turning? Something ain't right! You did mean for the motor to actually start turning? Not 30 seconds to reach full speed?

There is a parameter that gives the acceleration time, I have my VFDs set to 3 seconds (5?). When I press the RUN button the motor starts almost immediately taking 3 seconds (5?) to reach full speed.

Your huanyang HY01D523B vfd should be a good unit - In the past I used the Huanyang but now use a clone since it's less expensive. I've got 4 of them running now.

Good luck, and it seems Drew has you well in hand.
Click to expand...
thirty seconds ( estimate) for motor to start turning.
 
the first 14 settings: #1 is 1
#2 - 0
#3 - 60hz
#4 - 60
#5 - 60
#6 - 2.5
#7 - .5
#8 - 220
#9 - 15
#10 - 8
#11 - 0
#12 says null
#13 - 0
#14 - 1.0
 
Pd001 is the only one that catches my eye. Do you have "external controls" to control your start/stop and speed adjustment? Or are you using the keypad on the drive?
Can you take some more pictures of your setup? Even better would be if you could remove the front bottom cover from the VFD so I could see the wiring.

One thing you might try, is changing Pd001 to "0", then trying to control your drive with the run/stop buttons on the keypad.

I'm going to assume you have an external switch for operating the RUN(FOR) and STOP commands to the VFD. It's possible that your switch has gone bad, or you have bad wire, in which case the drive would never receive the forward RUN command to start the motor.

One more question: You did mention that it takes about 30 seconds to start the motor. I had just assumed you meant it takes a bit for the drive to boot up after powering on (which it does, though it's normally not quite 30 seconds). Did you mean it takes 30 seconds to turn the motor after you hit send a RUN command?
 
I have external controls, I actually did just change pd001 to 0 and tried it , made a noise but didn't do anything.
the 30 seconds was kind of a guess but that was for the motor to start turning. will post pics directly
 
When you set your Pd001 to 0 and hit the green run button, did the FOR light go solid? What are the other lights doing? Try hitting STOP a couple of times, then RUN again. See what the lights and display do.

Assuming all your connections, switches, and potentiometer are good, the wiring looks correct.

A couple more parameters to check:
Pd025 (make sure it's set to 0)
Pd043 (shouldn't apply, but make sure it's at 0)

Pd141 to Pd144:
141 and 142 are your motor's nameplate voltage and current. This parameter is more for built in overvoltage and current protection.
143 is the number of poles your motor has. Make sure it's 2 if you have a 3600RPM motor, or 4 if you have an 1800 RPM motor.
144 is motor RPM: it'll be on your nameplate, probably 3600 or 1800 (see previous parameter)

None of these should necessarily keep your motor from operating, but I'd like to just verify they're correct.

Another thing you can check is that your connections are still tight inside the motor's peckerhead, and that no wires look burned or broken.
I assume the motor shaft still turns freely and that the motor isn't making a noise when you try to RUN.

Check all of the above, and if you still aren't running, I'll message you my number and we can try to figure out a couple more things over the phone.
 
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