9
Input Filter
Function
To avoid unstable PV display due to interferences, DTE10T offers the filter function. Instead of averaging the values, the filter function here
calculate the weighted average value of the “current PV” and “previous PV”.
The filter equation: PV (displayed value) = [previous PV x (filter times – 1) + current PV] / filter times
The bigger the filter times, the bigger the weight of the previous PV, and the smoother the temperature display, which is a good way to
suppress interferences.
How to Operate
Set up relevant parameters using the table below.
Parameter
Address
Default value
Range
Filter times
10F7H
8
0~50
Filter range
10F9H
1.0
0.1~10.0
Hot Runner Control
Function
The hot runner control includes 3 steps:
1. Heating up by constant output volume
2. Timed PID control (Soak)
3. Slope heating to the target temperature (SV)
How to Operate
1. Enable the hot runner control function: Write 1234H into the address 47F1H and then 0060H into address 4824H.
Bits in 4824H
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Flag
--
Hot runner
control
Slop
control
--
Latch
CT
EVENT
--
Notes:
The flag to enable hot runner control is at bit6 of 4824H (and bit5 as to be enabled at the same time). Write 0060H to set both bits on.
If there is already a set value in 4824H and you would like to modify it, reset it to 0 before you set up a new value.
2. Set up relevant parameters using the table below.
CH
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
Temp. bound
(
unit: 0.1°
)
1960H
1961H
1962H
1963H
1964H
1965H
1966H
1967H
Constant output volume
(
unit: 0.1%
)
1968H
1969H
196AH
196BH
196CH
196DH
196EH
196FH
Timed time
(
unit: min.
)
19B0H
19B1H
19B2H
19B3H
19B4H
19B5H
19B6H
19B7H
Target temperature
(
uint: 0.1°
)
1008H
1009H
100AH
100BH
100CH
100DH
100EH
100FH
Slop
(
unit: 0.1°
)
1970H
1971H
1972H
1973H
1974H
1975H
1976H
1977H
Example
Assume the temperature bound is 100.0, constant output volume is 35.0, timed time is 15, target temperature is 200.0 and slope is 20.0, thus
1. The heater outputs by the 35% constant volume and waits for the temperature to rise to 100 degrees,
2. When the temperature hits 100 degrees, switch to the PID soak mode and retain the temperature constantly for 15 minutes.
3. When the time is up, switch to the slope control mode, executing the condition of a 20 degree temperature rise every minute.
4. When the heating achieves 200 degrees, the hot runner control is completed.