Operation - Delta A Series Instruction Sheet

LED Display
T-LOW: Lower limit for temperature range
CONTROL: Control method setting on the SV display: PID (
tuning (
SWITCH: Select Heating (
AL1 SET: Alarm 1 setting (See explanations in "Alarm Outputs" section.)
AL2 SET: Alarm 2 setting (See explanations in "Alarm Outputs" section.)
C SELECT : ASCII, RTU communication formats selection
(Displayed when using serial communication)
C WE: Write-in function disable/enable
(Displayed when using serial communication)
C NO: Address setting
(Displayed when using serial communication)
BPS: Baud rate setting
(Displayed when using serial communication)
LENGTH: Data length setting
(Displayed when using serial communication)
PARITY: Parity bit setting
(Displayed when using serial communication)
STOP BIT: Stop bit setting
(Displayed when using serial communication)
Note: Alarm values should be set in the initial setting mode so AL1H, AL1L, AL2H and AL2L would display in operation mode.

Operation

There are three modes of operation: operation, regulation and initial setting. When power is applied, controller gets into the operation mode.
Press the key to switch to regulation mode. If the
mode. Pressing the key while in the regulation mode or initial setting mode, forces the controller to return to the operation mode.
PV/SV: Sets the temperature set point and displays the temperature process value. Use the
point.
Setting method: While in any function mode, press the
settings. Press key to save the changes.
The next flow chart shows how to switch for settings and internal functions:
Regulation Mode
Auto-tuning
(In PID control and RUN mode)
Set PID PB
(In PID control)
Set PID Ti
(In PID control)
Set PID Td
(In PID control)
)
) or Cooling (
key is pressed for more than 3 seconds, controller will switch to the initial setting
Use
target
Press
Control setting RUN or STOP
Press
Upper-limit alarm 1
(This parameter is available only when ALA1
function enables)
Press
Lower-limit alarm 1
(The parameter is available only when ALA1
function enables)
Press
Explanation
), ON/OFF control (
) action
key to select the desired function and use the
Operation Mode
to set temperature of
Press
Press
Press
Press
- 4 -
), or manual
and keys to set the temperature set
and keys to change
Initial Setting Mode
Set input type
Set temperature unit
Set upper-limit of temperature range
Set lower-limit of temperature range
Default
-20.0
PID
HEAT
0
0
ASCII
OFF
1
9,600
7
E
1
Press
Press
Press
Press