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11.3 Control
Problem
Possible Cause
Solution
Even though program
control is executed, the
control is advanced and
the program is finished
soon.
The step time of the performing
pattern number is set to 0.00.
Set the step time to a suitable value.
Step does not progress.
Program control is suspended (Hold
function).
While program control is
suspended, the HOLD indicator
flashes.
Press the
key.
Suspension of control will be
cancelled, and program control will
resume.
The Wait function is working.
If the Wait function is working, the
STEP Display flashes.
Cancel the Wait function by
pressing the
or
key.
The Wait function will be cancelled,
and program control will continue.
PV does not rise or fall.
Sensor is out of order.
Replace the sensor.
Check whether the sensor or control
output
terminals
are
securely
mounted to the instrument input
terminals.
Ensure that the sensor or control
output terminals are mounted to the
instrument input terminals securely.
Check whether the wiring of sensor
or control output terminals is
correct.
Wire them correctly.
The control output OUT1
or OUT2 remains in an
ON status.
OUT1 or OUT2 low limit value is set
to 100% or higher.
Set it to a suitable value.
The control output OUT1
or OUT2 remains in an
OFF status.
OUT1 or OUT2 high limit value is set
to 0% or less.
Set it to a suitable value.
The step SV Hold
function does not work.
‘Not holding’ is selected in [Step SV
Hold function when program ends].
Select ‘Holding’ in [Step SV Hold
function when program ends].
The step SV Hold
function does not work
even if ‘Holding’ is
selected in [Step SV Hold
function when program
ends].
There are steps which have not
been set within the program pattern.
Set the last step values (of the
program pattern in the Pattern
setting group – except step time), to
all steps which have not been set
yet.
Set the step time to 0:00.
Содержание PCA1
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