Centroid Community CNC Support Forum

I’ve got a Mori seiki lathe with cnc10 controller. I’m having a issue with the following alarms 441 450. It started this after I moved the machine.

Ashb82 wrote: ↑Tue Jan 19, 2021 10:49 pm I’ve got a Mori seiki lathe with cnc10 controller. I’m having a issue with the following alarms 441 450. It started this after I moved the machine.

Never had this problem before? First install?

Here is the definition of the 441 Alarm:
Centroid Alarm 441 _ axis overvoltage

Cause & Effect
Input power has gone higher than 340VDC and will shutdown the drive and removes power. The motor brake will engage for 5 seconds in this condition.

Action
Check input voltage is below 340VDC. If not, incoming VAC needs lowered.

Centroid Alarm 441 _ axis overvoltage

The 450 Alarm is the motor brake mentioned above.

It appears you need to check your DC Buss voltage. Take a picture of the control cabinet and post it.

You might check your incoming AC power phase to phase and phase to ground to see if for some reason your input power is too high?

Standard 3 phase power? No phase converter? More details about history of the machine and installation would help.

Marc Leonard (cncsnw) knows these controls well and may chime in...
Marty

I do have a phase converter,
I got high voltage by doing the following, I have what I call the wild leg hooked up the L1.

I now get a Emergency Stop after tool change or when I run a program. I get the following issues on boot up.

PCI Driver not loaded check for legacy card
Then I get

Custom Message Parse Error
Invalid PLC Name given on line 7

The Machine has been setting with out power for about 5 years
I’m trying to get it back up and going

I ran a report

I do have a phase converter,
I got high voltage by doing the following, I have what I call the wild leg hooked up the L1.

Power up, release Emergency Stop, and measure DC voltage between the VM+ and VM- terminals.

If you have to unplug the "power input" plug from the SERVO4 to do this, then do so with extreme caution. The DC voltage will be in the neighborhood of 340VDC, and it can bite.

What voltage do you measure from VM+ to VM-?

I now get a Emergency Stop after tool change or when I run a program.

By that, do you mean that you are able to complete a tool change? Are you able to jog the axes, or home the machine?

I get the following issues on boot up.

PCI Driver not loaded check for legacy card
Then I get

Custom Message Parse Error
Invalid PLC Name given on line 7

The "PCI Driver not loaded, checking for legacy card" message is routine when you have a CPU7 board. This is not a problem.

The "Custom Message Parse Error" message is because there is a stray control character at the end of your cnc10xmsg.txt file, left over from when the file was copied from a DOS system to the current Linux system. You can probably delete it using the text editor. You can also just ignore it.

In spite of what is engraved on your serial number plate, the control is probably supposed to be 30003. T400 controls from that era were all numbered in the 30000 series. Six-digit serial numbers were not introduced until 2010, and numbers in the 300000 series have never been used.

cncsnw wrote: ↑Wed Jan 20, 2021 10:47 pm By that, do you mean that you are able to complete a tool change? Are you able to jog the axes, or home the machine?

Yes i am able to do all that now. i should have been clearer, putting my wild leg on l1 it fixed my over voltage problem.
lets say for example i call up t0505 it will complete tool change and give a emergency stop alarm. i can press and release the estop the message code will go away, try to start the program it will move the turret to home and e stop on me again.

Use the Alt-i PLC diagnostic screen to look at INP23 "TurretLocked", while you do a tool change.

When the turret is idle and securely locked down, is INP23 green, or read?

When the turret is unlocked and rotating, is INP23 green, or red?

Got it figured out was the hydraulics. My hydraulic motor was spinning backwards. All other motors turned the correct way. Only problem is my hydraulic motor is now pulling to many amps and turning off the relay. Machine runs great when the hydraulic pump is working

Ashb82 wrote: ↑Fri Jan 22, 2021 12:51 am Got it figured out was the hydraulics. My hydraulic motor was spinning backwards. All other motors turned the correct way. Only problem is my hydraulic motor is now pulling to many amps and turning off the relay. Machine runs great when the hydraulic pump is working

"Turning off the " relay....I assume there is a contactor with thermal overload coils? Picture please.
IF this is the case, then it could be result of your rotary phase converter and load imbalances. Measure your voltages phase to phase and use a current probe to measure the current running through each leg.

martyscncgarage wrote: ↑Fri Jan 22, 2021 10:57 am [quote=Ashb82 post_id=45054 time=<a href="tel:1611291061">1611291061</a> user_id=8903]
Got it figured out was the hydraulics. My hydraulic motor was spinning backwards. All other motors turned the correct way. Only problem is my hydraulic motor is now pulling to many amps and turning off the relay. Machine runs great when the hydraulic pump is working

"Turning off the " relay....I assume there is a contactor with thermal overload coils? Picture please.
IF this is the case, then it could be result of your rotary phase converter and load imbalances. Measure your voltages phase to phase and use a current probe to measure the current running through each leg.
[/quote]

Your are correct. I have 1 leg that’s high. Is there any way to fix this

It's a by product of generating the third leg with a rotary phase converter. Did you build the converter? Or what brand model is it? Some phase converters are fine for motor loads but not or CNC loads.

Do you have an AMP clamp?
Please post a picture of the motor starter/relay that controls the pump. Also, what are the phase to phase voltage readings?
Marty