Delta DTM Series - DTM Multi-Group PID Configuration

Chapter 5: Control Functions and Operating Instructions
DTM temperature controller operating manual
5-9
5.2 Multiple-group PID Option Settings
When under PID control, the system provides 4 PID groups and 7 parameters (group SV value, proportional
band, integration time, derivative time, cooling side proportional band, cooling side integration time, cooling
side derivative time) as setting options for users. Users can use one of the 4 PID groups for system PID
control, or let the program automatically select a PID group close to the input configured values to obtain
parameters. Because each set of PID parameters contains reference values (SV) for that group, users can
use these reference values to perform their own settings or automatically generate settings.
Example: In the 4 sets of PID parameters below, the SV values are the reference input configured values.
Users can take the values in the fourth set as the PID parameters, namely P=60, I=200, D=50. If the user
chooses to automatically find a set of parameters close to input configured values, when the input
configured value is 230, the program will automatically take the third PID group as the operating parameters
after performing a comparison.
Group 1 Group 2 Group 3 Group 4
Group SV value 80 160 240 320
Proportional band 120 47 70 60
Integration time 100 140 180 200
Derivative time 25 35 45 50
Table – Example PID groups
5.2.1 Selection of a PID Group
In accordance with the PID group corresponding to the needed settings, communications configured
value settings 0~3 correspond to PID groups 1~4, and communications configured value set as 4 will
initiate automatic switching.
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
PID group Hx3E8 Hx3E9 Hx3EA Hx3EB Hx3EC Hx3ED Hx3EE Hx3EF
Table - PID group switching communications addresses
5.2.2 Group Parameter Settings
Parameter can be individually input by customer in accordance with their communications addresses, or
can be generated automatically via AT.
Example: Selecting group 2 as the parameters to be implemented, when AT is completed, the PID values
will be added to the corresponding addresses in group 2, and the SV values are added to the SV values
of group 2
Name
Description
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
PID Group1 SV
unit: 0.1
Hx500
Hx508
Hx510
Hx518
Hx520
Hx528
Hx530
Hx538
PID Group1
proportional
band
unit: 0.1
range: 0 ~ 9,999
Hx501 Hx509 Hx511 Hx519 Hx521 Hx529 Hx531 Hx539
PID Group1
range: 0 ~ 9,999
Hx502
Hx50A
Hx512
Hx51A
Hx522
Hx52A
Hx532
Hx53A