[stephen21in]

Hi,
I've bought a old Mazak VQC 20/50B with Mazatrol M1 Controller with pallet changer.
I am facing a problem with Machine the Spindle is not functioning it shows Alarm No. 251 (Spindle Driver not functional).

Spindle drive is Frequol make. In the spindle drive the display shows no. E7 & the spindle is not rotating.

Can any please suggest, how can we rectify this issue.
How can i start the machine. Sometime back the machine was running perfectly, but now its constantly giving error for Spindle. Also please suggest how the pallet changing works. Does the pallet change automatically using the program or is it manual.

This machine menus are in Dutch, is there any way of changing it to english.

[bigbobomb]

sounds like you have a bad spindle drive and yes you can change to english but i dont know how

[stephen21in]

Thanks bigbobomb,
But how can i fix the spindle drive?

[amirkhan792004]

Dear Sir,

How are you. We have same machine VQC 20/50B with Mazatrol M1. we purchase used machine. Unfortunately during shipping electrical cable broken. We have no any wiring diagram and control manual. There for it’s not in working conduction. Can you help us with sending the manual and wiring diagram through email scan copy. I m thankful to you..

Thanks

[email protected]

[gridley51]

You can download the Freqrol manuals from www.meau.com
Additionally a search of the Mazak forum here will produce a lot of good info.

[paya]

Thanks bigbobomb,
But how can i fix the spindle drive?

We had fixed one, but another is failed.

Suggest to replace it with a new converter.

[Juka]

What is the manufacturer of that spindle motor ?
I don´t remember what is E7 error. Sometime ago we have similar bug, spindledrive just doesn´t start.

Does spindlemotor fan rotate ?

Juka

[paya]

E7 NCE NC EMERGENCY STOP
* Warning which is issued when an emergency stop signal is inputted from the CNC in bus linkage with the M300 series CNC.
* Warning which is issued when an emergency stop signal is inputted from the outside while the external emergency stop signal is validated with the related parameter being set.