6.2 Installing Options
X3 supports replaceable input and output optional modules, user can install or replace the
optional module according to actual need. Take X3 for example, the specific installation
steps are as follows:
Install the Optional Module
1. Unscrew the 2 captive screws in input modules block, and pull out the input module
block, as shown in figure:
Captive Screw
X3
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