45
POINT
Discrepancies between the voltage setting and the actual power supply
voltage will have the following consequences:
Power Supply Voltage
100VAC 200VAC
Set to 100VAC (shorting
strip connected at (2))
The power supply module is
destroyed (no abnormality in the
CPU)
Set to 200VAC (shorting
strip connected at (3))
There is no abnormality
in the module. However, the
CPU does not operate.
No setting (shorting strip
not used)
There is no abnormality in the module. However, the CPU does not
operate.
(5) "RUN"
LED
The "RUN" LED indicates the operating condition of the CPU.
ON
: When the key switch is turned to RUN or STEP RUN and the
sequence program is being executed.
OFF
: When the key switch is turned to STOP, PAUSE or STEP
RUN and the sequence program is not being executed.
Flashing : When an error has been detected by the self-diagnosis
function (operation will continue if the error detected has been
specified in the parameter settings). When the key switch is
set to the LATCH CLEAR position, the LED flashes rapidly for
about two seconds.
(6) "ERROR"
LED
ON
: Indicates that a WDT or internal fault check error has
occurred due to a hardware fault.
OFF
: Indicates that the annunciator (F) has been switched ON by
the sequence program.
(7) RUN/STOP key switch
RUN/STOP : Used to start/stop sequence program execution.
PAUSE
: Sequence program operation stops with the output statuses
immediately before the PAUSE condition was established
retained.
STEP RUN : The sequence program is run step by step or scan by scan.
Summary of Contents for Melsec A Series
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