3.2 Before Turning On the Power3-33.2 Before Turning On the PowerSystem configuration example Items to check before turning on the powerNumber Item Description① Checking connections tothe various devicesCheck to make sure the various devices have been connected asindicated by the design.② Checking the installation ofthe external safety circuitCheck to make sure the safety circuit (wiring and installation of overlimit switch) based on an external circuit has been installed securely.③ Checking the installation ofthe safety circuit based onthe unitCheck the connection between the unit and over limit switches.Check the installation condition of the over limit switches.④ Checking the proceduresettings for turning ON thepower suppliesMake sure settings have been entered so that power supplies will beturned on according to the procedure outlined in section “Procedurefor Turning On the Power”.⑤ Checking the CPU modeselection switchSet the CPU unit to PROG. mode. Setting it in the RUN mode cancause inadvertent operation.
