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4.2 Before Turning On the Power
Items to check before turning on the power
System configuration example
Checking connections to the various devices
○
1
E
A
Check to make sure the various devices have been connected as indicated by the design.
Checking the installation of the external safety circuit
○
2
E
A
A
Check to make sure the safety circuit (wiring and installation of over limit switch) based on an external
circuit has been installed securely.
Checking the procedure settings for turning ON the power supplies
○
3
E
A
A
Make sure settings have been entered so that power supplies will be turned on according to the
procedure outlined in section "Procedure for Turning On the Power".
Checking the CPU mode selection switch
○
4
E
A
A
Set the PLC in the PROG. mode. Setting it in the RUN mode can cause inadvertent operation.
Note:
When the power to the PLC is turned on, the start flags for the various operations of the positioning unit
RTEX should be off. If they are on, they may activate improperly.
4-3
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