[dwg123]

I've been having various problems my Fuling DZB312B005.5L2DK VFD after replacing the spindle. Symptoms include reduced performance (bogging at moderate loads), over-voltage alarms on stop braking. Supposedly this is an OEM direct replacement spindle and should be a simple drop-in unit.
(I'm using this https://drive.google.com/file/d/1zUe...P0h2g7XG7/view as my document reference)

Trying to figure this problem out, I ran across parameter F1.11 "Self-learning of motor parameters (Invalid for DZB200)". Do I need to re-run the self tuning procedure?

Problem is I tried it and I can't get parameter F1.11 to change from "0". Is there some trick to this or is my VFD fubarred in some way? It's still 100% unclear if this model even supports an external braking resistor so (??)

Checking further, I see parameter F1.00 "Inverter model" is set to "2", which is 'set by model' isn't even on the list of valid parameters. Is this another indication that I received is jank? Being a "312B", I expected to see a "0".

It appears that this parameter is overrideable. Is it ok to set this value to "0" and if so will this give me the ability to set F1.11=1 to recalibrate the FVD to the new spindle?

[mactec54]

I've been having various problems my Fuling DZB312B005.5L2DK VFD after replacing the spindle. Symptoms include reduced performance (bogging at moderate loads), over-voltage alarms on stop braking. Supposedly this is an OEM direct replacement spindle and should be a simple drop-in unit.
(I'm using this https://drive.google.com/file/d/1zUe...P0h2g7XG7/view as my document reference)

Trying to figure this problem out, I ran across parameter F1.11 "Self-learning of motor parameters (Invalid for DZB200)". Do I need to re-run the self tuning procedure?

Problem is I tried it and I can't get parameter F1.11 to change from "0". Is there some trick to this or is my VFD fubarred in some way? It's still 100% unclear if this model even supports an external braking resistor so (??)

Checking further, I see parameter F1.00 "Inverter model" is set to "2", which is 'set by model' isn't even on the list of valid parameters. Is this another indication that I received is jank? Being a "312B", I expected to see a "0".

It appears that this parameter is overrideable. Is it ok to set this value to "0" and if so will this give me the ability to set F1.11=1 to recalibrate the FVD to the new spindle?

No you first have to add all motor spec's into the drive and then you can use auto tune

[dwg123]

No you first have to add all motor spec's into the drive and then you can use auto tune

F1.01 thru F1.05 are correctly set. Is there a parameter I'm missing??

[mactec54]

F1.01 thru F1.05 are correctly set. Is there a parameter I'm missing??

Correct once you have the Motor Parameters set then you can use Auto tune, this will then set any other Parameters related to the motor, this will not change other parameters that you may need only motor related Parameters

[dwg123]

Correct once you have the Motor Parameters set then you can use Auto tune, this will then set any other Parameters related to the motor, this will not change other parameters that you may need only motor related Parameters

Thanks for the reply @mactec54. Actually I reached out to Folinn (aka Fuling) and they had a rather odd response. Unfortunately the answer isn't as clear as we'd like. So now I'm even more confused about how to set up the VFD correctly for a new spindle. Do you know of any VFD setup tutorials, etc that might help?

Here's the email in full (with a few identity redactions):

--->

Dear XXXXX,
Greeting form folinn electric in china,
This is teach supporter Allen,i have received your question,
For the frist issue, We currently restrict the permissions of many users in the DZB series. The purpose is to cooperate with CNC manufacturers, so many functions are not open to the outside world, including the parameter self-learning function.Sorry you cannot use it.
As for the second question, I will send you a detailed manual. Please refer to the manual. Regarding the relay output status, AB is normally open and BC is normally closed.

Thank you for your support!

--
Allen
Overseas Tech Support


ZHEJIANG NEW FOLINN ELECTRIC CO.,LTD
ADD:No.9, 26th Street,Eastern New Area,Wenling, Zhejiang,China.
Website:Home_ZHEJIANG NEW FOLINN ELECTRIC CO.,LTD
Phone:+86 18871431454/+86 15671764525
Wechat/whatsapp/line/zalo:+8615671764525
E-mail:[email protected]

On 2/27/2021 07:20?XXXXX<XXXXX> wrote?

Hello Allen,

Good day. I need help with the Folinn/Fuling DZB312B005.5L2DK VFD. There are two issues:

1. Recently I replaced the spindle with what was supposed to be an OEM direct replacement unit. This spindle experiences bog under moderate loads compared to the unit it replaced. I want to run F1.11 "Self-learning of motor parameters" procedure but my VFD will not let me change the parameter to "1". Note, F1.00 "Inverter model" is set to "2". Is this the problem? What can I do to correctly calibrate the VFD to this spindle?

2. I want to hook up the VFD fault output to the CNC controller but documentation for the unit is not adequate. The documentation wiring diagram does show that the A B C outputs are set for this purpose when F2.21 "Output relay selection" is set to it's default value of "3" "Fault output". However the document does not indicate how to hook up A B C, which are the normal-open and normal-closed circuits? And how are they to be wired? Which side is source & which is sink? Can you please give me clear instructions for how to wire this up? This will be connected in series with other failsafe (normally closed, active-open) alarms and e-stop input to the cnc controller.

Thanks so much for your assistance.

Regards,

[mactec54]

Thanks for the reply @mactec54. Actually I reached out to Folinn (aka Fuling) and they had a rather odd response. Unfortunately the answer isn't as clear as we'd like. So now I'm even more confused about how to set up the VFD correctly for a new spindle. Do you know of any VFD setup tutorials, etc that might help?

Here's the email in full (with a few identity redactions):

--->

Dear XXXXX,
Greeting form folinn electric in china,
This is teach supporter Allen,i have received your question,
For the frist issue, We currently restrict the permissions of many users in the DZB series. The purpose is to cooperate with CNC manufacturers, so many functions are not open to the outside world, including the parameter self-learning function.Sorry you cannot use it.
As for the second question, I will send you a detailed manual. Please refer to the manual. Regarding the relay output status, AB is normally open and BC is normally closed.

Thank you for your support!

--
Allen
Overseas Tech Support


ZHEJIANG NEW FOLINN ELECTRIC CO.,LTD
ADD:No.9, 26th Street,Eastern New Area,Wenling, Zhejiang,China.
Website:Home_ZHEJIANG NEW FOLINN ELECTRIC CO.,LTD
Phone:+86 18871431454/+86 15671764525
Wechat/whatsapp/line/zalo:+8615671764525
E-mail:[email protected]

On 2/27/2021 07:20?XXXXX<XXXXX> wrote?

Hello Allen,

Good day. I need help with the Folinn/Fuling DZB312B005.5L2DK VFD. There are two issues:

1. Recently I replaced the spindle with what was supposed to be an OEM direct replacement unit. This spindle experiences bog under moderate loads compared to the unit it replaced. I want to run F1.11 "Self-learning of motor parameters" procedure but my VFD will not let me change the parameter to "1". Note, F1.00 "Inverter model" is set to "2". Is this the problem? What can I do to correctly calibrate the VFD to this spindle?

2. I want to hook up the VFD fault output to the CNC controller but documentation for the unit is not adequate. The documentation wiring diagram does show that the A B C outputs are set for this purpose when F2.21 "Output relay selection" is set to it's default value of "3" "Fault output". However the document does not indicate how to hook up A B C, which are the normal-open and normal-closed circuits? And how are they to be wired? Which side is source & which is sink? Can you please give me clear instructions for how to wire this up? This will be connected in series with other failsafe (normally closed, active-open) alarms and e-stop input to the cnc controller.

Thanks so much for your assistance.

Regards,

That is a strange VFD Drive I have never seen a Drive that has Teach ( Auto Tune ) that the user can't use, there will be a pass code for one of the Parameters to be able to change this, I have some of them but not for this VFD Drive

For your Fault connection you will just connect to the NC relay and it will open when there is a Fault

[dwg123]

Apologies for the delay.

Regarding, power requirements. To clarify: This is a 5.5KW VFD driving a supposedly 3.2KW spindle motor, although spindle markings indicate the original was 8A and the replacement is 6A neither of which come close to even 3.2KW. Regardless, 5.5KW @ 240V = 25A at most, spread over two 120V circuits. Why would the VFD need 30-40A?

Specifically the label on my VFD unit specifies:
MODEL: DZB312B005.5L2DK
INPUT: 3PH 220V 50/60Hz
OUTPUT: 3PH 0-220V 0-1000Hz
POWER: 5.5KW 23A

I've never had a breaker trip, although this (and improper fault alarm wiring) might at least in part explain the hard crash the machine experienced. It was only under moderate load at the time of the crash.

This VFD is supplied with 240V 1-phase power, but there are indications it's ratings are for 3-phase power. I can't find any information on this DZB300 '0055L2' VFD model in the documentation or elsewhere and whether it's actually down-rated. Also there is no information on what 'DK' means. I suspect a power brownout.

Regarding loss of performance, I can't explain why the original spindle was so much more powerful / the replacement is so pathetically weak.

Original spindle label:
Jinan HongYang
NYM110-24Z / 3.2
3.2kW 220V 8A
400HZ 24000rpm
(Note, label is 'NYM110' but spindle body is confirmed 105mm diameter)

New spindle label:
Jinan HongYang
NYM105-9-24Z / 3.2
3.2kW 220V 6A
400HZ 24000rpm
(Note, how a 6A or 8A spindle motor can be labeled 3.2KW as unknown. 3.2KW @ 220V = 14.6A)

All parameters the same, the new spindle will only run at 10% feed rate of the original spindle which results in too thin chipload. We can't figure out why. The original spindle was able to sustain good material removal rate with the following parameters:

Tool: Helical 28300 3-flute carbide roughing bit (new) , 1/2" diameter
Material: 6061-T6 aluminum
Parameters: cut depth: 0.5" axial, 0.2" radial. 275in/min @ 14050 RPM = 0.063" feed per tooth (chip load)
Note, these are the recommended parameters from the tool manufacturer for the material using a 3.2KW spindle.

The original spindle ran well (minimal bogging) with these parameters but the new spindle bogs dangerously at even 20% feed rate. I have to cut feed to 50% and radial cut depth to 0.05" to get an acceptable chip load but then each part takes 8x as long to complete.

Another symptom is the original spindle stopped fine in 20 seconds. The new spindle needs 30s to stop or gets a E00A error.

We've been in contact with Jinan HongYang and they can't explain why the new spindle motor is so weak. They say it's the VFD.

I hope to pin this down soon, so any ideas/suggestions would be really appreciated. Before the wife files divorce papers haha.

[rjwims]

Any update on this?

I have the same 312 vfd and am expecting problems.

thx