connection of three phase motors to VFD

[kunte]

II have a milling machine Bernardo BF25 Top. Since my original electric motor was burnt, I bought a used electric motor of 1.1 kW 2860 turns. I have a frequency regulator ask power 131. I have a motor with the following keystroke



I have both bonded bridges on the electric motor.

For the frequency controller I can set the following parameters:


Which parameters and how much value I have to change to turn the motor to a minimum and a maximum frequency of 60-65Hz or as far as the engine permits. On the engine, I have a mounted fan that will cool the engine at small turns.
I also attach a copy of the complete VFD instructions.

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[mactec54]

II have a milling machine Bernardo BF25 Top. Since my original electric motor was burnt, I bought a used electric motor of 1.1 kW 2860 turns. I have a frequency regulator ask power 131. I have a motor with the following keystroke



I have both bonded bridges on the electric motor.

For the frequency controller I can set the following parameters:


Which parameters and how much value I have to change to turn the motor to a minimum and a maximum frequency of 60-65Hz or as far as the engine permits. On the engine, I have a mounted fan that will cool the engine at small turns.
I also attach a copy of the complete VFD instructions.

Your wiring should have the Green wire as Ground /Earth , Green should never be a Power Wire

These Parameters should get you going, note some are adjustable


AskPower Parameter Settings For 50Hz Ac motor
Mactec54

Pn01=2 ( Number of Motor Poles Will Display synchronized speed)
( Pn01=1 Will Display Frequency )

Pn02=50Hz (100Hz if you set your motor to Max Hz )

Pn03=2 ( VFD Button Control Only ) ( 4= External 0-10v )

Pn04=1 ( VFD Button Control Only ) ( 2= External Control )

Pn05=3

Pn08=10 ( This is adjustable Acceleration and Only is a Starting Number )

Pn09=10 ( This is adjustable Deceleration and Only is a Starting Number )

Pn10=50Hz ( Max 100Hz Setting )

Pn11=30Hz ( Minimum Speed adjust to suit your machines needs )

Pn12=50Hz ( Motor Rated Hz )

Pn013=1 ( Be careful with this setting as this can Damage Your Motor )

Pn014=50 ( adjust/ increase to suit for lower RPM Torque, Max setting 100 )

Pn17=30 ( adjust/increase to suit Stopping Max 40 )

Pn19=4 ( External 0-10v control )

Pn32=1 ( Set to 3 to Restore Default Parameters ) ( Set Back to 1 to ReSet Parameters )

[kunte]

Your wiring should have the Green wire as Ground /Earth , Green should never be a Power Wire

These Parameters should get you going, note some are adjustable


AskPower Parameter Settings For 50Hz Ac motor
Mactec54

Pn01=2 ( Number of Motor Poles Will Display synchronized speed)
( Pn01=1 Will Display Frequency )

Pn02=50Hz (100Hz if you set your motor to Max Hz )

Pn03=2 ( VFD Button Control Only ) ( 4= External 0-10v )

Pn04=1 ( VFD Button Control Only ) ( 2= External Control )

Pn05=3

Pn08=10 ( This is adjustable Acceleration and Only is a Starting Number )

Pn09=10 ( This is adjustable Deceleration and Only is a Starting Number )

Pn10=50Hz ( Max 100Hz Setting )

Pn11=30Hz ( Minimum Speed adjust to suit your machines needs )

Pn12=50Hz ( Motor Rated Hz )

Pn013=1 ( Be careful with this setting as this can Damage Your Motor )

Pn014=50 ( adjust/ increase to suit for lower RPM Torque, Max setting 100 )

Pn17=30 ( adjust/increase to suit Stopping Max 40 )

Pn19=4 ( External 0-10v control )

Pn32=1 ( Set to 3 to Restore Default Parameters ) ( Set Back to 1 to ReSet Parameters )

I'll replace the wires. Thanks for the advice. In the evening, when I get out of the job, I'll try it out.

[Al_The_Man]

If your 3phase supply is 220v then that termination (Delta) is correct, if 380v then you need to connect in Star.
Al.

[kunte]

If your 3phase supply is 220v then that termination (Delta) is correct, if 380v then you need to connect in Star.
Al.

220v

[ericks]

I assume you going to fit a gland on that cable cause the way the cable enters the terminal box is a short waiting to happen!

[ericks]

Oops yes you used the green cable for a phase connection....best you stick to the standard and use it on the stud for the earth connection. So your phases are Red(Brown)/White/Blue

[kunte]

That blue wire on the engine is a wrap of a cable that I protected with a blue thermal shrinkable tube. Thanks mactec54 with your help I started the engine and I can change engine turns.
I set Pn01 to 2860 as far as the engine is running at a frequency of 50Hz.
I set Pn10 to 70Hz, which should have 4000 turns.
I set Pn11 to 10Hz
What value do I set Pn14? 70 is the maximum frequency?
I have an engine right now on the working table. I need to mount the fan tomorrow and install it on the milling machine to test it.
Thank you

[mactec54]

That blue wire on the engine is a wrap of a cable that I protected with a blue thermal shrinkable tube. Thanks mactec54 with your help I started the engine and I can change engine turns.
I set Pn01 to 2860 as far as the engine is running at a frequency of 50Hz.
I set Pn10 to 70Hz, which should have 4000 turns.
I set Pn11 to 10Hz
What value do I set Pn14? 70 is the maximum frequency?
I have an engine right now on the working table. I need to mount the fan tomorrow and install it on the milling machine to test it.
Thank you

Pn14 you have to be carful with this Parameter only set it if you need it, for it to be active, it has to have a greater number than the max running frequency so if 70Hz is your max then this would have to be set to 80, as I said be carful with this parameter as this can damage your motor, it can over heat very quickly at slow speeds when you activate Pn14

[kunte]

I mounted a 3-button NO on the dashboard. One button for right rotation one for the left and a reset button. I connected the keys to GND, FWD, REV and RST on the control panel of the frequency. In my settings, the FWD or REV key must be pressed to keep the engine running. Is it possible to set my VFD to manage it with this type of keys or do I need different types of keys?


VFD settings:
Pn1 is 1
Pn2 is 50
Pn3 is 3
Pn4 is 2
Pn5 is 3
Pn6 is 2
Pn7 is 1
Pn8 is 10
Pn9 is 10
Pn10 is 70
Pn11 is 15
Pn12 is 50
Pn13 is 10
Pn14 is 70
Pn15 is 0.30
Pn16 is 0
Pn17 is 0.30
Pn18 is 0
Pn19 is 4
Pn20 is 10
Pn21 is 20
Pn22 is 30
Pn23 is 40
Pn24 is 50
Pn25 is 60
Pn26 is 70
Pn27 is 10
Pn28 is 3
Pn29 is 2.00
Pn30 is 2.00
Pn31 is 1.00
Pn32 is 1
Pn33 is 32025
Pn34 is 0
Pn35 is 16034

[mactec54]

I mounted a 3-button NO on the dashboard. One button for right rotation one for the left and a reset button. I connected the keys to GND, FWD, REV and RST on the control panel of the frequency. In my settings, the FWD or REV key must be pressed to keep the engine running. Is it possible to set my VFD to manage it with this type of keys or do I need different types of keys?


VFD settings:
Pn1 is 1
Pn2 is 50
Pn3 is 3
Pn4 is 2
Pn5 is 3
Pn6 is 2
Pn7 is 1
Pn8 is 10
Pn9 is 10
Pn10 is 70
Pn11 is 15
Pn12 is 50
Pn13 is 10
Pn14 is 70
Pn15 is 0.30
Pn16 is 0
Pn17 is 0.30
Pn18 is 0
Pn19 is 4
Pn20 is 10
Pn21 is 20
Pn22 is 30
Pn23 is 40
Pn24 is 50
Pn25 is 60
Pn26 is 70
Pn27 is 10
Pn28 is 3
Pn29 is 2.00
Pn30 is 2.00
Pn31 is 1.00
Pn32 is 1
Pn33 is 32025
Pn34 is 0
Pn35 is 16034

Your switch if it is not latched will not work, you don't need RST connection for a simple connection like this, Switch ( 1 ) FWD and Ground Terminal and for reverse should be Switch ( 2 ) REV and Ground

Your switches must be latching ( stay connected until you press the stop Button, ) you may need to use 2 Relays

[kunte]

Thanks for the quick answer Mactec54
I have another question. What happens if you press the REW button by mistake when the FWD switch is turned on?

[mactec54]

Thanks for the quick answer Mactec54
I have another question. What happens if you press the REW button by mistake when the FWD switch is turned on?

The VFD should ramp down to zero and then reverse, if you had a VFD Drive with a Braking Resistor then you can FWD and REV almost instantly

[kunte]

Okay. Then I'll get the keys of different colors.
Thank you.