66
The PV/SV display is indicating
[
].
• Internal memory is defective.
Contact our agency or us.
14.2 Key Operation
Problem
Presumed Cause and Solution
• Unable to set the SV, P, I, D,
proportional cycle or Alarm
value
• The values do not change by
,
keys.
• “Lock” is selected during Set value lock selection in the Special
function group.
Release the “Lock” selection.
• During AT or auto-reset.
In the case of AT, cancel AT.
It takes approximately 4 minutes until auto-reset is finished.
The setting indication does not
change in the input range even if the
,
keys are pressed, and
new values are unable to be set.
• Scaling high or low limit value in the CH1, CH2 function group may
be set at the point where the value does not change.
Set it to a suitable value.
CH2 SV cannot be set.
• Timer spec is selected, or Heating/Cooling control output or
External setting input is selected from the Block function (Console
software).
In the case of the above spec, CH2 SV setting item will not be indicated.
CH2 parameter group is not
indicated.
• Timer spec or Potentiometer input spec is selected, or
Heating/Cooling control output or External setting input is selected
from the Block function (Console software).
In the case of the above spec, CH2 parameter group will not be
indicated.
CH2 function group is not
indicated.
• Timer spec or Potentiometer input spec is selected, or
Heating/Cooling control output is selected from the Block function
(Console software).
In the case of the above spec, CH2 function group will not be
indicated.
14.3 Control
Problem
Presumed Cause and Solution
Temperature does not rise.
• 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 the sensor or control output terminals is
correct.
The control output remains in an
ON status.
• Output low limit value is set to 100% or higher in the CH1, CH2
function group.
Set it to a suitable value.
The control output remains in an
OFF status.
• “Control Prohibited” has been selected during Control Allowed/
Prohibited selection in the CH1, CH2 parameter group.
Select “Control Allowed”.
• Output high limit value is set to 0 % or less in the CH1, CH2
function group. Set it to a suitable value.
Control timer does not work.
• Control timer time is set to 0 (zero) seconds in the Special function
group.
Set it to a suitable value.
• Control timer start temperature in the Special function group is not
set to a suitable value.
Timer starts when CH1 input exceeds Control timer start temperature.
(In the case of Direct control action, timer starts when CH1 input
drops below Control timer start temperature.)
Set it to a suitable value.
Delay timer does not work.
• Timer action time unit, ON delay timer or OFF delay timer in the
Special function group is not set to a suitable value.
Set it to a suitable value.
