Tamagawa DC Servo Motor question

[SHop Apprentice]

I just acquired a new machine with Tamagawa DC servo motors attached. I think they are about 19 years old. Type TS (which I don't know what that means) TS3352N7E67. I am trying to discover which encoder they have and how it functions. I suspect that what I see is not an encoder at all.

Six wires are going to the motor. The motor has two heavy gauge wires, Black and Red, to the main motor and ports to replace brushes. There are two green wires, both of which are grounded to the frame of the motor. Lastly, there are two wires (red and white) that go to a rotor on top of the motor with four contacts. I will include a picture. After 3 days of searching the net, I have nothing so here I am at the forms looking for answers. I suspect someone who has been doing this for a while will have the answer in short order.

My goal is to use these motors and restore their functionality with a Geko controller.

Thanks for having a look.

 

[SHop Apprentice]

The motor has this label:

 

[markba633csi]

Those are permanent magnet dc motors with tachometers, no idea of the motor voltage. The tach output is 7 volts per thousand rpm
Not sure how usable they are in today's cnc world
They might be great small lathe spindle motors with a good controller; KB controllers can accept a tach input, but they also work fine with
armature feedback and no tach

 

[SHop Apprentice]

See below.

 

[SHop Apprentice]

Those are permanent magnet dc motors with tachometers, no idea of the motor voltage. The tach output is 7 volts per thousand rpm
Not sure how usable they are in today's cnc world
They might be great small lathe spindle motors with a good controller; KB controllers can accept a tach input, but they also work fine with
armature feedback and no tach

Thanks, Mark
Thanks, that makes sense and I certainly was not thinking in those terms. In this project I am attacking, I am using glass scales for feedback on positioning so encoders are not necessary. A follow-up question if you will. I can figure this out but your answer may be easier, can I assume AC voltage?
Bob

 

[markba633csi]

DC motors, but voltage unknown- might be 90. If you have a variac and a bridge rectifier you could get some idea

 

[SHop Apprentice]

DC motors, but voltage unknown- might be 90. If you have a variac and a bridge rectifier you could get some idea

Sorry Mark,
I was referring to the output of the tach rotor.
Bob

 

[markba633csi]

DC also I think