Delta DVP-ES2

4 Temperature Measurement Module DVP04PT-E2
DVP-ES2 Module Manual
-8
Description
bit3=1 CH4 exceeds lower bound
bit4 ~ bit7 Reserved
bit8=1 CH1 exceeds upper bound
bit9=1 CH2 exceeds upper bound
bit10=1 CH3 exceeds upper bound
bit11=1 CH4 exceeds upper bound
bit12 ~ bit15 Reserved
CR#102, 103, 104, 105: Set value of CH1 ~ CH4 upper bound. Default =H’0000
[Explanation]
Set the upper bound value of CH1 ~ CH4. Default = K32,000
CR#108, 109, 110, 111: Set value of CH1 ~ CH4 lower bound. Default =H’0000
[Explanation]
Set the lower bound value of CH1 ~ CH4. Default = K-32,000
CR#120, 140, 160, 180: SV (Setpoint)
[Explanation]
1. Please set the temperature value (unit: 0.1 degree) according to proper range of each sensor type, i.e.,
suppose the target temperature is 100°C, write K1000 into the specified CR by using TO instruction.
2. Default = K0.
CR#121, 141, 161, 181: Sampling time (s)
[Explanation]
1. Set up the time interval between each action of sampling. If the temperature in the control
environment does not vary significantly, set up longer sampling time; however if temperature varies
quickly, set up shorter sampling time.
2. Setup range: 1 ~ 30, Default =K2. The conversion time of each channel in the temperature
measurement module is approximately 1 second. Therefore, if the value is smaller than 1, 1 will be
automatically written into the CR. If the value is bigger than 30, 30 will be written into the CR.
3. Output cycle time (ms) is equal to the setup sampling time (s), i.e. if the sampling time is set as 2, the
output cycle will be 2,000 correspondingly.
CR#122, 142, 162, 182: K
P
value, Default =K121
[Explanation]
K
P
: The proportional control constant, i.e. proportional band. The proportional control refers to that the
output is in proportional to the error. Please refer to the PID operation formula and set up an appropriate
parameter.
Output MV (%) = E / K
P
× 100%
MV
: Output value
P
K
: Proprotional gain


tE
: Error value
Example:
Set up K
P
= 10, E = 1, K
I
= 0, K
D
= 0 (Close K
I
, K
D
)
MV (%) = 1 / 10 × 100% = 10%
The output percentage displayed in CR#131, 151, 171, 191 will be 10%.
CR#123, 143, 163, 183: K
I
value, Default = K2098
[Explanation]
K
I
: Integral constant.
1. Suppose only proportional control is applied, there will be certain deviation between the set value and
the actual temperature. If integral control is applied, the deviation will decrease gradually and the
target temperature can be achieved.
2. Integral control function will be disabled if K0 is set to the CRs.
3. If the curve is too gradual, please adjust K
I
. The closer the K
I
to 0, the more abrupt the curve becomes.