[rboeser]

Hello to all;

I have been testing again. I hope this info will help someone in the future trying to figure out the series / parallel wiring on the Vexta PH series 8 wire stepper. I think the doc is self explained, if you require help, or have any corrections, please tell me.

The following is also attached as a file for your downloading pleasure.

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Wire diagram for the VEXTA PH268M-E1.5B by Ron Boeser, 07-12-2005.

General disclaimer; I tested these wire configurations using a ZETA4 drive (compumotor). All configurations listed were succesfull for a short run time. I would confirm by testing for many hours to confirm operation and overheating/ amp draw concerns. Please use at your own risk, I do not want to hear about burned up steppers or drives, it is YOUR choice to use this guide.

These are 8 wire steppers with the following wire colors:

Phase A:
Black ----
]coil
Black/White ----

Orange/White ----
]coil
Orange ----

Phase B:
Red ----
]coil
Red/White ----

Yellow/White ----
]coil
Yellow ----

++++++++++++++++++++++++++++++++

Series configuration:

A+ = Black
A- = Orange
A Center tap = Blk/Wht + Org/Wht

B+ = Red
B- = Yellow
B Center tap = Red/Wht + Yel/Wht

++++++++++++++++++++++++++++++++

Parallel configuration:

A+ = Black + Org/Wht
A- = Blk/Wht + Orange

B+ = Red = Yel/Wht
B- = Red/Wht + Yellow

All info contained herein was taken from the ZETA4 manual and a VEXTA diagram I scrounged from the web. Please copy and pass this info freely to help others along the CNC path.