M20 Live tool on turret will not go above 500rpm

[kunz82414]

I have a Cincom M20 that works great except for the live tooling on the turret. This spindle will not go above 500 rpms.

The problem is with the turret, not the gang. I couldn't edit the title.

Not sure where to start, any suggestions would be appreciated.

Thanks

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[jreynolds5]

Do you have a G50 s500 somewhere limiting the speed??

[kunz82414]

No, I don't think that is the issue. Recently I tried to run a program and use the turret to drill a cross hole in a part. I thought if I fed slow enough 500 rpm would work. Whenever the part reached the point in the program where the turret live tool would start, I always get an "P32 Address Error". At this point, I just have to stop everything.

Machine works great with the exception of turret live tools.

[jreynolds5]

That would mean there is something wrong with that line of code. Can you post that operation??

[servtech]

That would mean there is something wrong with that line of code. Can you post that operation??

Can you check the analog input voltage to the live tool spindle drive at various speeds ?

Ie what is current voltage?
Voltage at 50%
Voltage at 100%
Usually 0 to 10vdc (from O to max rpm).

[kunz82414]

When it errors out, all 3 lines are in the G720 machining mode. $1 is commanded "G720", $3 is commanded "G720W1" and $2 is commanded as below. I get the error immediately after the turret live tooling spins up at the line that says "S4=1000M83 (TURRET_LIVE_ON)". Let me know if anything stands out as being obviously wrong. Thanks.

$2
G710W1

G720U1

P17(BIG_HOLE)
N2501
T2500(0.201_LIVE_DRILL_TURRET_HOLDER)
G50 W0.790 U0.75(OFFSETS)
G98(IPM_FEED)
S4=1000M83 (TURRET_LIVE_ON)
M70 (CAXISON)
G0C0
G4U0.5

[servtech]

When it errors out, all 3 lines are in the G720 machining mode. $1 is commanded "G720", $3 is commanded "G720W1" and $2 is commanded as below. I get the error immediately after the turret live tooling spins up at the line that says "S4=1000M83 (TURRET_LIVE_ON)". Let me know if anything stands out as being obviously wrong. Thanks.

$2
G710W1

G720U1

P17(BIG_HOLE)
N2501
T2500(0.201_LIVE_DRILL_TURRET_HOLDER)
G50 W0.790 U0.75(OFFSETS)
G98(IPM_FEED)
S4=1000M83 (TURRET_LIVE_ON)
M70 (CAXISON)
G0C0
G4U0.5

Have you got a speed limit set in the tool data ?
If your program speed is higher than the preset it could give a fault.

[jreynolds5]

I would add the line of code in blue. G50 is modal so if you had a spindle speed limit set in another program of anywhere else it will pick it up.



$2
G710W1

G720U1

P17(BIG_HOLE)
N2501
T2500(0.201_LIVE_DRILL_TURRET_HOLDER)
G50 S5000 (SETS MAX RP,)
G50 W0.790 U0.75(OFFSETS)
G98(IPM_FEED)
S4=1000M83 (TURRET_LIVE_ON)
M70 (CAXISON)
G0C0
G4U0.5[/QUOTE]

[kunz82414]

I tried adding the "G50 S5000 (SETS MAX RPM)" line of code, but still having the same issue with the error message "P32 address error".

I will try to test some voltage readings going to that spindle and see what I find out.

Appreciate the help.