Chapter 1 Introduction 1.3.2 Installing a Removable Terminal Block Install a removable terminal block on the module as illustrated below. 1_ Installation 1. Level the terminal block at the printed circuit board, and press it into the module. Removal 1. Pull down the clip in the direction indicated by the arrow and then pull the terminal block up as illustrated below. 2 1 1 1.3.3 Changing a Module 1. Take the removable terminal block out of the module, and then pull the clip out from the DIN rail as shown below. 1-9