Delta A Series User Manual

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LED Display Explanation Default
T-LOW: Lower limit for temperature range -20.0
CONTROL: Control method setting on the SV display: PID (
), ON/OFF control ( ), or manual
tuning (
)
PID
SWITCH: Select Heating (
) or Cooling ( ) action
HEAT
AL1 SET: Alarm 1 setting (See explanations in “Alarm Outputs” section.) 0
AL2 SET: Alarm 2 setting (See explanations in “Alarm Outputs” section.) 0
C SELECT : ASCII, RTU communication formats selection
(Displayed when using serial communication)
ASCII
C WE: Write-in function disable/enable
(Displayed when using serial communication)
OFF
C NO: Address setting
(Displayed when using serial communication)
1
BPS: Baud rate setting
(Displayed when using serial communication)
9,600
LENGTH: Data length setting
(Displayed when using serial communication)
7
PARITY: Parity bit setting
(Displayed when using serial communication)
E
STOP BIT: Stop bit setting
(Displayed when using serial communication)
1
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 key is pressed for more than 3 seconds, controller will switch to the initial setting
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
and keys to set the temperature set
point.
Setting method: While in any function mode, press the
key to select the desired function and use the and keys to change
settings. Press
key to save the changes.
The next flow chart shows how to switch for settings and internal functions:
Regulation Mode Operation Mode Initial Setting Mode
Auto-tuning
(In PID control and RUN mode)
Press
V
Use to set temperature of
target
Press
V
Set input type
Press
V
Set PID PB
(In PID control)
Press
V
Control setting RUN or STOP
Press
V
Set temperature unit
Press
V
Set PID Ti
(In PID control)
Press
V
Upper-limit alarm 1
(This parameter is available only when ALA1
function enables)
Press
V
Set upper-limit of temperature range
Press
V
Set PID Td
(In PID control)
Press
V
Lower-limit alarm 1
(The parameter is available only when ALA1
function enables)
Press
V
Set lower-limit of temperature range
Press
V

Delta A Series Specifications

General

Brand	Delta
Model	A Series
Category	Temperature Controller
Language	English