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the last step.
Cycle Parameter :
Additional execution cycle number. For example, when set to 2, it indicates that pattern No. 4 should execute
twice in addition. Include origin one time execution, total execute three times.
Actual Step Parameter :
Execution step number per pattern (can set to 0 ~ 7). For example, when set to 2, it indicates that pattern
No 7 will not execute other steps than step 0 to step2.
Execution :
When is set to , the program will start to execute in order from the step 0 of start pattern.
When is set to , the program will stop and the control output is disabled.
When is set to , the program will stop and the temperature at that time will be controlled at the set point before program stop.
Select again, then the program will restart and execute from step 0 of start pattern.
When is set to , the program will hold and the temperature at that time will be controlled at the set point before program hold.
Select again, then the program will follow the step before hold and start to execute through the rest of the time.
Display :
During PID program control, the SV default display is P-XX, P indicates the current execution pattern and XX indicates the current
execution step. Press to change the display item.
After select , press key, and then the temperature set point of the current execution step will display on SV display.
After select , press key, and then the residual time of the current execution step will display on SV display.
PID Control
One group can be selected from any one of 4 groups PID parameters (P, I, D, IOF) for PID control. After AT, PID value and temperature setting
will be stored in the selected one group.
~ : PIDn, n = 0 ~ 4 from which 0 ~ 3 correspond to each PID parameter. : n = 4, auto PID parameter. Program will
automatically select a most useful PID parameter based on current temperature setting. Displayed SV values correspond to ~
~ : Temperature setting corresponded to the selected PID parameter via user-defined or AT.
Valve Control:
When use valve control as output control, there are 2 Relay outputs for motor forward/reverse control, one (output 1) for valve open the other
(output 2) for valve close. The output volume is controlled by valve open/close and it can be set with feedback function enabled or disabled.
When feedback is disabled, output 1 will keep output while valve fully opens and output 2 will keep output while valve fully closes. But if
feedback is enabled, please follow the parameter setting for valve control as follows:
: Time for valve from full close to full open.
: Dead Band setting of valve. The value of current valve output minus previous one must be greater than Dead Band value; otherwise,
valve will remain OFF.
: Signal feedback setting, ON for enabling feedback and OFF for disabling feedback.
When set to ” 1”, it means signal feedback function is activated and will come up selections as follows:
: Upper/Lower limit of valve feedback by auto-tuning. must set to for showing up this selection.
: D/A value when value fully opens. Set to be ”1” for auto setting or ”0” for manual setting.
: D/A value when value fully closes. Set to be ”1” for auto setting or “0” for manual setting.
Note: If feedback function setting is with problem, program will see the setting as feedback disabled.
RS-485 Communication
1. Supporting transmission speed: 2,400, 4,800, 9,600, 19,200, 38,400bps
2.
Non-supported formats: 7, N, 1 or 8, O, 2 or 8, E, 2
3.
Communication protocol: Modbus (ASCII or RTU)
4.
Function code: 03H to read the contents of register (Max. 8 words). 06H to write 1 (one) word into register. 02H to read the bits data (Max.
16 bits). 05H to write 1 (one) bit into register.
5.
Address and Content of Data Register:
Address
Content
Explanation
1000H
Process value (PV)
Measuring unit is 0.1, updated one time in 0.4 second
The following reading value display indicates error occurs:
8002H : Initial process (Temperature value is not got yet)
8003H : Temperature sensor is not connected
8004H : Temperature sensor input error
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