Direct/Reverse Action; At Bias; Setting Item Not Used; Sv2 Indication - Panasonic KT9 Instruction Manual

ARW function
ARW (Anti-reset windup) prevents overshoot caused by the integral action. The smaller
the ARW value, the less the overshoot caused by the integral action in the transition
status, however it takes time until stabilization.
Sensor correction function
This corrects the input value from the sensor. When a sensor cannot be set at a
location where control is desired, the sensor measuring temperature may deviate from
the temperature in the controlled location. When controlling with plural controllers,
the accuracy of sensors affects the control.
Therefore, sometimes the measured temperatures (input value) do not concur. In such a
case, the control can be set at the desired temperature by adjusting the input value of
sensors.
SV1/SV2 external selection
SV1 or SV2 can be selected by the external operation.
• Between terminals 14 and 17 open: SV1 can be selected.
• Between terminals 14 and 17 closed: SV2 can be selected.
• Set value memory number cannot be changed during setting mode or PID auto-tuning.
Direct/Reverse control action selection
• Selects either Direct (Cooling) or Reverse (Heating)
control action.
• Selecting item
Reverse (Heating):
AT bias setting
• Sets the bias value for performing PID auto-tuning.
• Not available for DC input
Available for PID action
• Setting range: 0 to 50
With a decimal point，0.0 to 50.0

Setting item not used

When Serial communication (option) is applied, this item appears.
However, do not set this item.
SV2 indication selection
• Selects whether SV2 is indicated or not.
• Selecting item
(Indication)

Output status selection when input abnormal

• Selects the output status of OUT1 and OUT2 (option) when DC input is
overscale or underscale. See "Input abnormality indication" on pages 40, 41.
• Available only for DC current output with DC input
• : OFF(4mA) or OUT1(OUT2) low limit
: Outputs a value between OFF(4mA) and ON(20mA) or between
OUT1(OUT2) low limit value and OUT1(OUT2) high limit value,
depending on a deviation.
OUT/OFF key function selection
• Selects the OUT/OFF key function.
• Selecting item
(OUT/OFF function),
Direct (Cooling):
(0 to 100 )
(No indication)
(Auto/Manual control function)
26
Reverse
(Heating) action
20
(0.0 to 100.0 )
Indication
Output OFF
OUT/OFF
function