6
※
1 Scale = 2.8uA = 1.3mV for tuning output value
PID mode selection: any one of 4 groups PID modes (n=0~3) can be selected. When n=4, program will
automatically select 1 group PID that is most useful for target temperature.
Select n=0~4 to
decide PID mode.
0~3 groups PID
Press
PID setting: n=0.Press
PID setting: n=3.Press
Proportion band setting: n=0.
Press
Proportion band setting: n=3.
Press
Ti setting: n=0. Press
Ti setting: n=3. Press
Td setting: n=0.Press
Td setting: n=3.Press
Integral deviation setting: n=0.
AT setting.
Press
back to PID deviation setting
Integral deviation setting: n=3.
AT setting.
Press
back to PID deviation setting
Pattern and step editing selection: edit
in
parameter. The following display is the example operation of pattern
No. 0.
select OFF
Press
Select desired editing pattern
number
select number
Edit temperature of step No. 0
of pattern No. 0
Press
Select actual step No. when
program control is executing
Press
Exit p
attern and step editing selection
Switch to and continue setting
Edit time of step No. 0 of
pattern No. 0, unit is hh.mm
Press
Set additional execution cycle
number(0 to 99)
Press
Set step No. 07 in order
Press
Edit temperature of step No. 7
of pattern No. 0
Set link pattern, OFF indicates
the program end
Press to return pattern No. editing
mode
Press to set actual step No.
Edit time of step No. 7 of
pattern No. 0, unit is hh.mm
7
Dual Loop Output Control (Heating / Cooling Control)
OFF
PV
Set point
ON
Heating
Dead band
Heating hysteresis
Figure 1. Output
during dual loop output control
operation of ON/OFF control
Cooling hysteresis
Cooling
Temperature control can be achieved either by heating or cooling. In DTB
series, heating and cooling can be operated simultaneously (Dual Loop
output control) to perform temperature control. When Dual Loop output
control are used, two control outputs must be connected to the heating and
cooling devices. Please refer to the following for the operation:
: This parameter is used to select heating or cooling action if
operate either heating or cooling function in this controller. When selecting
, 1st output group is heating (reverse) control, and when selecting
, 1st output group is cooling (forward) control. At this moment, 2nd
output group is regarded as an alarm output. If user select
or
,
it indicates that user can operate Dual Loop output control function in this
controller. When selecting
, 1st output group is heating (reverse)
control and 2nd output group is cooling (forward) control. When selecting
, 1st output group is cooling (forward) control and 2nd output group is
heating (reverse) control.
PV
0
Output
Dead band: dead
band width=positive
Set point
Heating
Cooling
Figure 2. PID
Dead Band is positive
control,
