Any help wiring BLDC motor controller to Mesa 7i76?

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10 Nov 2019 11:47 #150051 by RoberCNC
Hi, I have a Chinese BLDC controller for the spindle and I have no idea how to wire it to the Mesa card, I don't even know what the HALL terminal is for, I have found a diagram but it only turns and I think it can take more advantage (turn in both directions, revolutions, etc). I enclose the terminals and pins that you have to see if you can lend me a hand.

Motor Driver:
HALL terminal
V-
HU
HV
HW
V+

CONTROL terminal
F/R
SV
ALM
PG
EN
+10V
GND

Mesa TB4 connector
1 SPINDLE-
2 SPINDLE OUT
3 SPINDLE+
4 NC
5 SPINDLE ENA-
6 SPINDLE ENA+
7 SPINDLE DIR-
8 SPINDLE DIR+

Thanks a lot.

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10 Nov 2019 11:59 - 10 Nov 2019 12:01 #150052 by tommylight

RoberCNC wrote: Motor Driver:
HALL terminal
V-
HU
HV
HW
V+

Those are for HAL sensors on the motor. Does it have sensor wires or terminals ?

RoberCNC wrote: Motor Driver:>>>>>>>>>>>>Mesa TB4 connector

CONTROL terminal
F/R>>>>>>>>>>>>>>>>>>>>>>>8 SPINDLE DIR+
SV ??????????>>>>>>>>>>>>>>2 SPINDLE OUT
ALM>>>>>>>>>This can go to an input on 7i76 to show spindle errors
PG
EN>>>>>>>>>>>>>>>>>>>>>>>>6 SPINDLE ENA+
+10V>>>>>>>>>>>>>>>>>>>>>>3 SPINDLE+
GND>>>>>>>>>>>>1 SPINDLE-/5 SPINDLE ENA-/7 SPINDLE DIR-

Again, you should wait for PCW to confirm that, it's been over 3 years i installed my last 7i76E.
Last edit: 10 Nov 2019 12:01 by tommylight. Reason: ignores spaces !

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10 Nov 2019 12:20 #150054 by RoberCNC
Again thank you very much Tommy, no problem waiting :)

Sensors wires or terminals the motor you mean? No it doesnt, the motor only have 3 wires (U, V and W)
What is the HALL exactly for? just to know and go learning.

Must wait for PCW then ;)

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10 Nov 2019 13:02 #150059 by tommylight

RoberCNC wrote: Sensors wires or terminals the motor you mean? No it doesnt, the motor only have 3 wires (U, V and W)
What is the HALL exactly for? just to know and go learning.

You are welcomed.
There should be 5 more wires ( 8 for differential outputs ) that usually go to the encoder side of the motor for hal sensors that tell the drive at what angle is the rotor inside the motor positioned and subsequently what winding should it energise to move in one direction or the other.
If it does not have them it will work without them, some spindles do not have them, some do.

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