Pulldown on PwrCtrl pin

I am using the MBL1650CN controller and the data sheet shows a switch or relay connecting the PwrCtrl pin to ground when you want to disable the motor outputs. I plan on connecting Vmot to battery and using the pwrctrl pin to enable/disable the high current outputs (using a secondary power bus). Is it necessary to connect directly to ground like this, or is it ok to use a pull down resistor to disable the output when I switch off the voltage to the pwrctrl pin?

The power control does not have a direct connection to your motor output; it is for logic control only. If you short the power control to ground, then it turns off the controller.

If you want to disable the motor outputs, you can do so using a switch that will activate either a deadmans switch, safety stop, or emergency stop function.

OK, that is what I want to occur (turn the controller off by grounding the power control). So my question still stands, is it sufficient to use a pull down resistor on the power control pin or do I need to short to ground?

Short it directly to ground.