How to control spin down settings on WD elements USB hdd?

spin wdAfter about 20 mins the unit did go into standby mode (the front LED changed from a static blue to a slow, pulsating blue and the drive spinning noise was absent). Then, when IFind the rht software for your WD, Western Dital, SanDisk, or WD_BLACK device. Download and access additional features on your personal storage device.