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Z1 axis needs a zero return

Remote I/O alarms are from the HR371 card
On this machine you will have 2 in the NC unit and depending what is on your machine you will have some on the IF card in the electrical cabinet check that...

Y02 system alarm is not good
The NC system has seen a fault with 1 of the intelligent servo systems but its not sure what one it was

If its the sub spindle the speed is set low if the chuck is not closed if its the main spindle try running this spindle in C axis if it alarms out possible the PLG needs to be replaced

Has the option for main spindle C axis been switched on check in the machine structure page

In the back on the NC unit is a 7 segment display this should be on 9 if not possable cause is 1 a push button is stuck in or 2 the hdd is not running

Time to get the wallet out this is a HDD fault new drive needed

You have a short on the 24v dc this is normally the wire to the X2 brake clear any swarf from this area long term the cable will need attention

Letter A on the servo drive is a parameter has been set wrong

Use man set and increase the dia value

This alarm is the servo backup battery's these need to be replaced but for now leave the machine powered up with the alarm for half an hour then power off and back on you will then have Z71 alarms...

The problem with this machine is the EX001 alarm until this is cleared you will have the emergency alarm
The problem could be the thermal trips these are located at the bottom of the contactors the...

This is a option and you need the code to switch it on
Then where you enter 1001 tab tab M you need to enter 527 tab tab S this then gives you a option page in the parameter screen

Hi
First have you got the original parameter list
If not contact Citizen with the machine Ser No and ask for it
If you have lost the parameters out of the machine is the NC Battery OK if not...

Z70 is a zero return alarm
Zero return all axis the only one that could be a problem is T1 there is a procedure for this if you need it

Ask citizen to change the movement detector to the newer version

What you have been told is correct this stops the need for switches
To change the axis position its the same as any Fanuc parameters 1850 for the grid shift and 1815 for the APZ
When zero returning...

Hi

If you are on an L520 with a 600 control you can restore the S ram and para file from the back up and restore function on the control
The y02 51 alarm is a servo problem

If you need these...

No as the re gen resistors for all axis are located at the right hand end of the machine under the perforated cove below the barfeed so changing the drive to another one will be the same as the...

Hi

Your problem is the re gen resistor on the servo amp check the resistance of the wire P to N think it should be 40 ohms but check with one of the other drives all the re gen resistors are the...

Yo

On the relay board there is a Omron relay this can be found by looking at the board and get someone to open and close the main spindle chuck
This relay sends the signal to the bar feed change...

On this site if you go to Meldas 300 problems I found a good procedure for rebooting and loading all the data

Bad news

This will be a new hard drive this alarm is one of the windows files has been lost or corrupted

cogsman

You are correct do not adjust the switches
If the procedure from Citizen will not work the span ring on the last gear has moved

Hi

All these alarms are caused by the machine 24v dc shorted to earth from your pat off probe
Disconnect the part off probe from the relay board and all will be well

Hi
On this machine it will usually be the shot pin in the top turret or bottom turret not in the correct position at power up
With the machine power off remove the small cover and push the shot...

Hello have looked at this site but have only now become a member
Have worked on machine tools fro an apprentice now at 50 that's a log time