Adaptive® JUNIOR – Technical and HMI User Guide
REV 1.04
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4.5.
Control Page
Figure 12 Control screen showing PID settings
The control page provides access to the three Junior operating modes; Manual, Thermostat and PID. These are used
with the temperature feedback from sensor D to maintain the temperature of the external device to the required
setpoint. The Off mode is provided to switch off the control and output bridge completely. An auto-tune option is
provided to aid the automatic configuration of the PID gain settings, depending on the system being controlled it will
generally allow the operator to quickly set an initial PID tuning that can then be fine tuned for performance.
The output drive is also flexible, allowing bi-directional output for the TEC which is capable of both heating and
cooling or uni-directional control for single heating or cooling elements. A third option is the ability to drive a logic
level TRIAC module via the auxiliary output. The output mode is only selectable when the controller is in the Off
mode. Care should be taken to ensure that the connected device is compatible with the selected output drive
method.
Note: Off mode is also used for clearing shutdown alarms.
4.5.1.
Manual Control Mode
This is an open loop mode that allows the user to set the drive output at
a fixed value of its maximum. The temperature sensor connected to
sensor D is not used as there is no temperature feedback, likewise the
setpoint entered is a percentage of output instead of degrees C.
This mode would normally be used to confirm the operation of the
heating, cooling or heating/cooling module that is attached, or for a
system that requires a constant heat input where its effect from its
external environmental is very low.
The actual output value is also determined by what output mode has been selected see Table 6 and Figure 14 below.
Note the output mode can only be changed when the control mode is set to Off. Before changing modes ensure that
the module connected is suitable for the polarity chosen.
Required Temperature
Operating Mode
Output Option
Mode
Settings
Figure 13 Manual operating mode
