[otrotabi]

Amada turret punches have diferent switches on a control board (in our case named VIP-11) which handle some output status. Particularly there is one switch called T.Align which turns off the hydraulic pump. Amada advises to leave it on the OFF position. The ON position means that the pump will be turned OFF if the Tool change switch is turned to ON (and viceversa).

What are the possible drawbacks of ignoring Amada´s advice and leave the T.Align switch on the ON position ? Having the pump working while changing the tools or loading a program to the CNC does not look like it is helping too much. Besides the noise of the pump is quite annoying.

[norin1373]

Hi

Alignment of stations usually take more time than setting up a tool. So you should use the tool align key when you are doing so.

In case you want to turn hydraulic unit off while setting up a tool.
1-You are preventing oil cooling process in off time.
2-And specially in some models that the hydraulic motor is not starting by star-delta method, the shock of every stop-start is higher than you think!

Simply as Amada advised keep ToolAlign key at off position .

[email protected]
Good luck,
M.R. Norin

[otrotabi]

Hi

Alignment of stations usually take more time than setting up a tool. So you should use the tool align key when you are doing so.

In case you want to turn hydraulic unit off while setting up a tool.
1-You are preventing oil cooling process in off time.
2-And specially in some models that the hydraulic motor is not starting by star-delta method, the shock of every stop-start is higher than you think!

Simply as Amada advised keep ToolAlign key at off position .

[email protected]
Good luck,
M.R. Norin

Thanks for your comments.

So, basically there are no safety issues involved, right ?

We were actually thinking that pump on was desirable to keep oil warm enough, not to cool it. But either way, it keeps the heat exchanger busy :-)

Pump motor power is rated 18.5 kw. So having a 24 hp motor running while loading a program to the CNC looks "weird". So basically you leave the machine working the whole shift ?

Regards

[norin1373]

Thanks for your comments.

So, basically there are no safety issues involved, right ?

We were actually thinking that pump on was desirable to keep oil warm enough, not to cool it. But either way, it keeps the heat exchanger busy :-)

Pump motor power is rated 18.5 kw. So having a 24 hp motor running while loading a program to the CNC looks "weird". So basically you leave the machine working the whole shift ?

Regards

Hi
In different models of Vipros there are one or two pumps running with the same motor.
The hydraulic heat exchanger is located before oil goes back to the tank in the loop.
The heat exchanger is a shell and tube type, cooled water by chiller is inside the tubes and oil is on outside.

For example if you keep the machine at idle for hours the oil temperature will reach about 35 degree. And if you keep working for hours it will reach 50.
So you can see your setup time as a opportunity for oil to cool down.

There is not much oil capacity in the heat exchanger so if you block oil loop by turning off hydraulic motor and keep the chiller on, after several minutes the oil and water will become isothermal. And after turn it on again suddenly the radiator temperature will change. E.g. from 25 to 50
Maybe it’s not worth considering but I don’t like this rapid temperature changes.

You can try to speed up you setup time.
If you finally choose to keep ToolAlign key on:
Change motor starting type to star-delta type if it is not.
And there no safety issue involved with ToolAlign key.

Good luck,
M.R. Norin