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Chapter 5: Control Functions and Operating Instructions

DTM temperature controller operating manual

5-4

 Example: The following settings have been made:

Pattern 0, steps 0 parameters, SV00=30.0, T00 = 1, pattern 1, step 0 parameters, SV10=100.0, T10

= 1

Pattern 0, step 1 parameters, SV01=30.0, T01 = 1, pattern 1, step 1 parameters, SV11=100.0, T11 =

Pattern 0, step 2 parameters, SV02=40.0, T02 = 1, pattern 1, step 2 parameters, SV12=60.0, T12 = 1

Pattern 0, step 3 parameters, SV03=40.0, T03 = 1, pattern 1, step 3 parameters, SV13=60.0, T13 = 1

Pattern 0, step 4 parameters, SV04=60.0, T04 = 1, pattern 1, step 4 parameters, SV14=50.0, T14 = 1

Pattern 0, step 5 parameters, SV05=60.0, T05 = 1, pattern 1, step 5 parameters, SV15=50.0, T15 = 1

Pattern 0, step 6 parameters, SV06=80.0, T06 = 1, pattern 1, step 6 parameters, SV16=40.0, T16 = 1

Pattern 0, step 7 parameters, SV07=80.0, T07 = 1, pattern 1, step 7 parameters, SV17=40.0, T17 = 1

Pattern 0 linked pattern is 1, pattern 1 linked pattern 8=end

Pattern 0 number of repetitions 0, pattern 1 number of repetitions 1

Pattern 0 number of valid pattern steps 5, pattern 1 number of valid pattern steps 3

The settings are programmable PID Start pattern 0, and Start step 1, in which case the

setting curve will be as follows

Figure – Example programmable control temperature curve settings

Slope control:

Relying on the already-set SV value, the system will control the temperature increasing slope

(units: 0.1°C /min.), until the preset temperature is reached.

Example: When the slope is set as 5, and SV is set as 200.0°C, this implies that the temperature

will rise at a rate of 0.5°C/min. from room temperature until a temperature of 200.0°C has been

reached.

Manual switching:

Switching from automatic control to manual control can force output of a certain percent; when

the system was originally under PID control, the following characteristics will be present:

A. Switching from PID control to manual control: Control output will be maintained as the

original operating quantity before switching to manual control. For instance, when the control

output before switching resulting from PID calculations is 20%, the control output will

continue to be 20% after switching to manual control. Users can force a fixed output value

after switching, such as a control output of 40%

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