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A Appendices
E5@C-T Digital Temperature Controllers User’s Manual (H185)
A-6 Parameter Operation Lists
A
A-6-11 Initialization According to Parameter Changes
• MV Lower Limit: Standard 0.0, heating/cooling −100.0
*6 For heating and cooling control, initialized to Control Output (Cooling) as follows:
(The defaults for standard control are the defaults in the parameter list.)
• With control output 2: The Control Output 2 Assignment parameter is initialized to control output (cooling).
• If the Controller does not have control output 2 but has four auxiliary outputs, the Auxiliary Output 4 Assignment
parameter is initialized to Control Output (Cooling).
• Otherwise, the Auxiliary Output 2 Assignment parameter is initialized to Control Output (Cooling).
*7 The Auxiliary Output 1 Assignment parameter is initialized as follows:
• Controllers with HB and HS alarms: Heater alarm
• Controllers without HB and HS alarms: Alarm 1
*8 The All PID AT upper limit SP is clamped to the input setting range upper or lower limit, or the scaling upper or lower
limit.
*9 For a temperature input, the Integral/Derivative Time Unit parameter is initialized only when the RT parameter is turned
ON. The default is as follows:
• Integral/Derivative Time Unit: 0.1 s (The PID parameters are also initialized when the Integral/Derivative Time Unit
parameter is initialized.)
*19
*10 This parameter is initialized to the new Password to Move to Protect Level password.
*11 If you change the reset operation from stopping control to fixed control, the SP Mode is initialized to FSP if it was PSP.
*12 The defaults are as follows:
Temperature input: The upper and lower limits of the input setting range change to the following values according to the
temperature unit and based on the setting of the PID Set Automatic Selection Data parameter.
• PID Set Automatic Selection Data set to PV: Input setting range upper limit + 20°C (40°F)
• PID Set Automatic Selection Data set to DV: Input setting range upper limit − Input setting range lower limit + 20°C
(40°F)
• PID Set Automatic Selection Data set to SP: Input setting range upper limit
Analog input: 105.0 (regardless of the setting of the PID Set Automatic Selection Data parameter)
*13 These parameters are initialized when the Input Type parameter is changed from a temperature input to an analog input
or from an analog input to a temperature input.
*14 This parameter is initialized when the Input Type parameter is changed from a temperature input to an analog input or
from an analog input to a temperature input. However, it is not initialized if the applicable alarm is an MV absolute-value
upper-limit alarm or an MV absolute-value lower-limit alarm.
*15 This parameter is initialized to 50 (0.50%) if a non-MV alarm is changed to an MV alarm. This parameter is initialized to
2 (0.2°C or 0.02%FS) if an MV alarm is changed to a non-MV alarm.
*16 The Operation End Operation parameter is initialized when the Reset Operation parameter is set to fixed SP operation.
*17 Initialized only when the PID ON/OFF parameter is set to ON/OFF control.
*18 Initialized to 0.8 when the temperature unit is °C, and to 1.4 when the temperature unit is °F.
*19 These parameters are initialized as follows:
• Integral/Derivative Time Unit of 1 s: Proportional band to 8, integral time to 233, and derivative time to 40. (This
applies to both the heating and cooling constants.)
• Integral/Derivative Time Unit of 0.1 s: Proportional band to 8.0, integral time to 233.0, and derivative time to 40.0.
(This applies to both the heating and cooling constants.)
*20 This parameter is initialized to 4.0 for closed control and 2.0 for floating control.
*21 If the Close/Floating parameter is set to floating and the integral time is 0, the parameter is initialized to 233. If the
integral time is 0.0, it is initialized to 233.0.
*22 The Minimum Output ON/OFF Band parameter is initialized as follows depending on the settings of the Standard or
Heating/Cooling and Heating/Cooling Tuning Method parameters:
• Standard or Heating/Cooling parameter set to Standard: 1.0
• Standard or Heating/Cooling parameter set to Heating/Cooling and Heating/Cooling Tuning Method parameter set to
Same as Heating Control: 1.0
• Standard or Heating/Cooling parameter set to Heating/Cooling and Heating/Cooling Tuning Method parameter set to
Linear: 1.0
• Standard or Heating/Cooling parameter set to Heating/Cooling and Heating/Cooling Tuning Method parameter set to
Air Cooling: 0.0
• Standard or Heating/Cooling parameter set to Heating/Cooling and Heating/Cooling Tuning Method parameter set to
Water Cooling: 0.0