AH Motion Controller – Operation Manual 1 3 2 DIN rail _2 Removing a DIN rail Step 1: Press the hook in the direction indicated by the arrow. Step 2: Remove the backplane. 1 DIN rail 2 2.1.3 Installing a CPU Module Insert a module into a slot, make sure that the module is installed on the backplane properly, and tighen the the screw, as illustrated below. 1. Insert the hook under the module into the hole in the backplane. 2-4