Midas DL451, Operator'S Manual

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Chapter 7: Operation
DL451 Modular I/O
Operator Manual
Replacing a module
The design of the DL451 Modular I/O makes module replacement very easy and
straightforward. The unit has rack guides in each of the three module positions so that
the modules can slide easily in and out. Each module is held in place by two screws, at
the left- and right-hand sides, and a short metal post (or stud) adjacent to each screw
facilitates removal.
To remove a module
To remove a module
The fitting of a module is the reverse of the above procedure. The unit will recognise
the type and position of the new module just fitted. However, you may need to
configure some of its options; see Chapter 6 “Main Menu”.
1
Switch off unit and isolate it electrically from the mains power supply by removing the mains
power cable from the rear of the unit.
2
Remove the two securing screws from the left- and right-hand sides of module (on rear
panel).
3
Pull out the module using the two circular machined posts (fitted to rear of module panel,
adjacent to the two securing screws).
2a
2b
1a
1b