122-28176 Parallax Inc, 122-28176 Datasheet - Page 316

• Manufacturer Part Number: 122-28176
• Description: GUIDE STUDENT PROCESS CONTROL
• Manufacturer: Parallax Inc

Specifications of 122-28176

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Propeller Education (PE) Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Part B:
Below is data representing the systems conditions and data for PID evaluations.
Calculate the output for each evaluation. Kp = 2 Ki = 0.01 Kd = 4 Setpoint = 500
Challenge 8-3 Solution
Actual
500
510
490
480
470
520
500
500
2. Proportional Gain = 1/200% = 1/2 = 0.5
3. 111 °F = 37.5%
106 °F = 100%
115 °F = 0%
1.0
1.0
0.5
0.5
2.0
1.0
0.5
1.0
∆t
Given Kp = 2 Ki = 0.01
-10
-20
-30
10
20
Table 8-2: PID Evaulation Activity Solutions
E
0
0
0
-20
-10
-20
-20
∆E
10
50
0
0
P(KpE)
-20
-40
-60
20
40
0
0
0
Kd = 4
E∆t
-10
-60
10
20
-5
0
0
0
Setpoint = 500
I(KiΣE∆t)
-0.05
-0.65
-0.45
-0.45
-0.45
0.05
Figure 8-20
1. 200% proportional
band curve for a
system with a
setpoint of 110 °F
and a band of +/- 2 °F
.1
0
D(Kd∆E/∆t)
-160
-160
200
-80
-40
40
0
0