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Yes, the 151/155A was Pre/fe mode. therefore you need to set the parameters.

parameter 92 (decimal character in program in/out via rs232 interface)
0 = decimal comma - 1 = decimal point
...

lol, thats what i was thinking too, at first, however, the largest backlash value you can set in the 6 series is .025" or .25 mm:)

Hope you guy's don't mind my 2 cents, but,
what are the chances this machine has a linear scale on the Z axis, with a dirty spot in the area in question?

are you useing absolute, or incremental circle centers in your programming?
find this out, then you can change the anilam control to use the same in operator setup - control software parameters....

The "DR" signal is pin 20(DTR), it needs to be connected (jumpered) to pins 6(DSR) and 8(DCD).
you will also need to jumper pins 4 and 5 (rts, cts) and set your comunication software to use software...

yes i do.
I noticed in your video image, input 8 (j4/4) is 0 (off)
this input is the emergency stop feedback input. meaning the machine is in an emergency stop condition. so the problem is in the...

Normally, on the tnc controls, the axis jog buttons will not work until the machine is homed.
you press the cycle start button to home machines with these controls :)

Yes, this is normal, The second bit is for interlock. say for instance you press the x+ jog button, one bit changes to send the command to the nc side, and the second bit locks out the oposite...

Heres st240, an old as dirt dos app, it will capture what ever comes in.
and you can set up and store eight different config settings.

If you want to decode it from binary to text(once...

According to your program, your drilling in .4480" with a .750" cutter. at 2500 rpm. then clearing a 2.008" circular hole.
possible overload condition, seeing as your running on a phase convertor?...

If you can't turn the shaft, then that rules out my current limiter theory.
have you tried reversing the analog speed command wires ?
if it uses a single ended command voltage, that would do it

also check to see if the current limiting pot on the drive is backed all the way off (counter clockwise) if so, apply a small drive signal, then slowly turn current limiting pot clockwise until motor...

Heres a drawing I made a few years back when i used a fanuc spindle drive for a Heidenhain tnc 415 retrofit. it shows the cn1 and cn2 pinouts as well as the optional orient board.
If you are going...

Ive seen this before, try turning off windows firewall.

check the "new belts" to see if there acually the same length. they should be all from the same lot number (v belt production is not a precision process. lol)
if one of the set is slightly shorter,...

"Motor Overload error" tells me that a thermal overload relay is tripped (probobly in the spindle drive unit) or a loss of one phase of main power to the drive

I've Been a Machine tool Repair Technician since 1984. Started my own one man show Repair/Retrofit company in 1997, specializing in cnc machining centers For Tool and Die Shops in west Michigan.

Ryan,
Heres an image i scanned from my TNC 151/155 mounting instruction manual.
it shows the recomended pinout for the adaptor cable,
Once connected, if you set the data interface mode to "FE" the...

"Z-measuring system defective" error on the tnc controls means just that, the control lost comunication with the encoder (or scale). however, i have had this error come up due to the cnc power supply...

Matt:
You can call 1-888-fanucus(1-888-326-8287), manuals are available for the om control.
as far as the line number count thing, the OM control will fault on a line number over 4 digits (over...