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Author Topic: Pulse Coder- Way too many wires!  (Read 3021 times)

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Offline DNB

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Pulse Coder- Way too many wires!
« on: March 11, 2007, 03:05:14 AM »
Hi all,

So I was tearing my machine apart and strategizing my retrofit today.  Things were going along fine until I took a close look at the wires coming from the pulse coder.  I was expecting anywhere from 4 to 8 wires depending on what type of pulse coder I have (single-ended or differential encoder).  However, there were 20 plus wires!  I am hoping one of you guys could take a look at the pics I posted below and let me know what I am dealing with and how I should handle these various wires.  Thanks much!

Motor:  Fanuc Model 0 DC Brush motor
Encoder: 2500 Pulse Count
Excit. Perm. Magnet
RPM: 2000
Volts: 56V
Cont Amps at Stall: 12A
Torque at Stall: 2.7Nm



Re: Pulse Coder- Way too many wires!
« Reply #1 on: March 11, 2007, 06:40:13 AM »
If you look inside the motor these are the only ones used.

MS3102A20-29P (encoder connector at motor)

A) A
B) B
C) +5V
D) A not
E) B not
F) Z
G) Z not
H) Shield?
J) +5V
K) +5V
L)
M)
N) 0V
P) 0V
R) Temp Sw.
S) Temp Sw.
T) 0V

Darek

Offline DNB

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Re: Pulse Coder- Way too many wires!
« Reply #2 on: March 11, 2007, 11:46:16 AM »
Thanks Darek!

Offline DNB

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Re: Pulse Coder- Way too many wires!
« Reply #3 on: March 11, 2007, 12:08:26 PM »
Hi Darek,

Does Z = Index?

Also, how do the Temp switches work?  Do I use them as emergency stops if the motor gets too hot?

Thanks!

David

Offline poppabear

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Re: Pulse Coder- Way too many wires!
« Reply #4 on: March 11, 2007, 02:04:48 PM »

yes:

Z = Index, and your temp switchs are for over temp. Check your switch type, (n/c, or n/o), and you can wire them in your estop.

Commercial Mach3 & Mach 4, Design/Build/Retrofit CNC and Industrial machines.
http://www.ss-systems-llc.com/
Re: Pulse Coder- Way too many wires!
« Reply #5 on: March 27, 2007, 03:47:42 PM »
Hi David,

Can you tell me the status of your work, any good news? I want to do also a retrofit to my Mazak HMC, with fanuc 6BM control. It is exactly what you are doing, also with F/V converter. Can you give me pointers on what to buy and how to wire them?
I am following your treads with enthusiasm.

Thank You

George