Problem- Encoder wiring

[KGD]

I am preparing to upgrade my CNCmill with a Fanuc 3M control and I was investigating the wiring to the encoder. I am trying to verify the schematic: PCAX, PCBX, PCZX, etc. but when I removed the cover to the encoder, I discovered there are no labels for the wires and the schematic has no color codes to the wires. My question is: How would you know which wire goes where?

Thanks,
KGD

[Al_The_Man]

If you have not removed the wiring, or have the MR-20 Honda plugs still around, you should be able to either ring them through to M7 or go by the original colour to the M7 plug.
Al.

[KGD]

Al,

If I cut the cable running to the M7 plug in order to hook them up to a breakout board (or motion control card) are you implying that the wire colors will match the encoder hookups? BTW I am leaning towards Mach3 with a Galil motion control card.

Thanks,
KGD

[Al_The_Man]

What I meant was, if M7 is still wired, the connections/pins on M7 should be able to ID the encoder pin-out, or the MS Cannon connector on the motor, if it has one, by ohm meter or conductor colour.
Do you have the MS or M7 pin outs on the Fanuc schematic?
Al.

[KGD]

Al,

After alot of investigating, I found some letters on the female side of a threaded connector (Cannon connector?) going into the motor cap, 17 pin, which may identify the pinouts (there are no letters on the Honda connector going into the pc). But there is still some question as how to read the circuit diagram I have for the encoder pinouts. How do you interpret the pinout diagram showing +5V going to C,J,K and 0V going to N,P,T? Does this mean all three C,J,K pins have +5 volts going through them?

By the way, thanks for your trouble.

KGD

[Al_The_Man]

I don't have the pin out for the Canon MS conn. but the Honda plug is marked, it is just that is is hard to read, I believe it is marked on the wired side.
1,2,3 = 0v 4,5,6, +5v.
14 Z, 15 /Z.
16 A, 18 /A.
18 B, 19 /B.
The over-temp is 8 & 9.
BTW I found the reference you mentiond to CJK=+5v & NPT=0v, and that is correct.
Al.

[KGD]

Al,

Thanks. You really helped me out alot. I was able to verify everything. I found one difference from the numbers you sent me. The A's and B's were reversed. The 16A,18/A was 18A, 19/A and the 18 B, 19 /B was 16 B, 17/B. I don't know if this matters or not.

Thanks,
KGD

[Al_The_Man]

Some times it was done to reverse encoder count direction.
Al.

[Gerisz]

Hello! I need this pulse coder pinout:A 860-0310-T-113 15000P
This is in a Fanuc AC servo motor.TYPE A06B0315B063777000.
Thanks for help!

[Al_The_Man]

22-14P Cannon connector.
PIN
A = A
B = /A
C = B
D = /B
E = Z
F = /Z
G = C1
H = C2
J = C4
K = C8
L = +5V
M = 0V
N = Gnd
P = OH Temp sensor
R = OH
T = +5
U = 0v
The C1,C2,C4,C8 are the commutation
Al.

[Gerisz]

Thanks for the information!