Servo control signals

I have a Kinco FD422 servo drive and motors for a router project and in the planning stage for the interface to and from the 7i77 to the drive.
I have the usual inputs to the FD422, analog +-10V for speed & direction control with digital inputs "enable & "fault reset" but I noticed that there is also a option for a "quick stop" input.
Its description in the manual is :" When the signal is valid, the motor shaft releases. After the signal is removed, the driver requires re-enabling".

I was wondering if this input required when I could just use he drive enable input?
Its description is : "By default, the driver enable signal is valid, and the motor shaft is locked".
I assume that the shaft is unlocked if it is not enabled.

For outputs from the FD422 , I have 'ABZ encoder signals",  "Drive ready" and "error" to the 7i77.

I know there are power & grounds that need to be wired to get it going but is there any other IO I should be considering?

Thanks,
Steve

 

I would think that enable is sufficient
(you would expect enable to have the same effect, no torque when enable is false)

The quick stop signal is for external E-stop circuit. It basically puts the drive in a "safe torque off" state that it can't get out of without reset.

Thanks for the answers Gents.
All the answers make sense. Thinking about it the drives have a position mode in them where you can define a movement based on inputs and timers without a external controller so Roiki's answer would fit the best where a simple enable & stop button could control the movement.

In the case of external control I think PCW's answer is correct for this purpose.