Yaskawa 120 Series I/O Modules - Manual (Page 236)

6.1 Installing Modules
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6
When using a single-phase AC power supply (100/200 VAC) for driving the loads of
the Relay Contact Output Module, install a safety switch for each Module. Before
inserting or removing the Relay Contact Output Module, always turn this safety switch
OFF to turn OFF the AC power supply to the Module.
Inserting or removing a Relay Contact Output Module while AC power is being
supplied may result in an electric shock at touching the power supply terminals.
Use the following procedures to remove the Module from the Mounting Base.
a) Make sure that the terminal block is removed from the Module.
b) Remove the Module from the Mounting Base as shown below.
(1) Loosen the Module mounting screw.
(2) Rotate the Module until it disconnects from the Mounting Base.
c) Remove the Module from the Module hook on the Mounting Base.
CAUTION
Module
Module mounting screw
Module
Module hook
Module
connector
Rotate
Module
Module hook
Module
connector
Mounting Base