Key Operation; Control - Panasonic KT4R User Manual

12.2 Key Operation

Problem
None of the set
values can be set.
Only SV and Alarm
value can be set.
Other settings are
impossible.
The setting
indication does not
change in the input
range, and new
values are unable to
be set.

12.3 Control

Problem
Temperature does
not rise.
The control output
remains in an ON
status.
The control output
remains in an OFF
status.
[ ] is indicated
in the PV display.
For all other malfunctions, please contact our main office or dealers.
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Possible Cause
Set value lock (Lock 1 or
Lock 4) is selected.
AT, 'AT on startup' or
Auto-reset is performing.
Set value lock (Lock 2 or
Lock 5) is selected.
Scaling high or low limit value
may be set at the point where
the value does not change.
Possible Cause
Sensor is out of order.
Check whether the sensor or
control output terminals are
securely mounted to
instrument input terminals.
Check whether the wiring of
sensor or control output
terminals is correct.
OUT1 or OUT2 low limit value
is set to 100% or higher.
OUT1 or OUT2 high limit
value is set to 0% or less.
AT or 'AT on startup' has not
been completed even
approx. 4 hours have elapsed
since AT or 'AT on startup'
started.
For 'AT on startup', PV slope
and delay time cannot be
measured normally for P, I, D
calculation.
Release the lock in [Set value lock].
If AT or 'AT on startup' is performing, cancel AT or
'AT on startup'.
Please wait until Auto-reset is finished.
(It takes approximately 4 minutes until Auto-reset
is finished.)
Release the lock in [Set value lock].
Set it to a suitable value.
Replace the sensor.
Ensure that the sensor or control output terminals
are mounted to the instrument input terminals
the securely.
Wire them correctly.
Set it to a suitable value.
Set it to a suitable value.
Set P, I, D and ARW values manually
if
Solution
Solution