6 Parameter Settings and Functions
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6.10 Error
The controller diagnoses input signals for errors and displays messages accordingly. These
messages inform the user of device problems. Once the cause of the error is solved (sensor
connected/return to display range), the error status is released and the device continues to run
normally.
The following conditions may result in errors. When an error occurs, the display LED at the
front flashes at 0.5 second intervals.
The sensor input is higher than operational temperature range.
The sensor input is lower than operational temperature range.
Input sensor is disconnected or not connected.
When power is on, or in standard control or heating mode, the controller outputs 0% if
HHHH is displayed and 100% if LLLL is displayed.
When power is on, or in standard control or cooling mode, the controller outputs 100% if
HHHH is displayed and 0% if LLLL is displayed.
In heating and cooling mode, when power is on or in standard control, heating output is 0%
and cooling output is 100% if HHHH is displayed; heating output 100% and cooling output is
0% if LLLL is displayed.
Output priority in manual control: Heating(Cooling)_MV > Stop_MV > Sensor Error_MV
Output priority in automatic control: Stop_MV > Sensor Error_MV > Heating(Cooling)_MV
6.10.1 Sensor error, MV setting
This feature sets control output when a sensor open error occurs. Users can configure ON/OFF,
MV settings, etc.
Ignores MV by ON/OFF control or PID control, and sends out a control value based on the
defined MV.
Parameter Setting range
Unit
Control
Setting
Heating,
Cooling
PID
Sensor Error
MV
0.0 to 100.0
0.0
%
Heating
&
Cooling
PID
-100.0 (Cool) to 100.0
(Heat)
0.0
ON/OFF
-100.0 (Cool ON)
/0.0 (OFF)
/100.0 (Heat ON)