Yaskawa MP2300S Basic Module - Manual (Page 313)

9.1 Basic Flow of Troubleshooting
9-2
9.1 Basic Flow of Troubleshooting
When problems occur, it is important to quickly find the cause of the problems and get the system running again as
soon as possible. The basic flow of troubleshooting is illustrated below.
Step 1 Visually confirm the following items.
ΠMachine movement (or status if stopped)
ΠPower supply
ΠI/O device status
ΠWiring status
ΠIndicator status (LED indicators on each Module)
ΠSwitch settings (e.g., DIP switches)
ΠParameter settings and program contents
Step 2
Monitor the system to see if the problem changes for
the following operations.
ΠSwitching the Controller to STOP status
ΠResetting alarms
ΠTurning the power supply OFF and ON
Step 3
Determine the location of the cause from the results
of steps 1 and 2.
ΠController or external?
ΠSequence control or motion control?
ΠSoftware or hardware?