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Chapter 12 Description of Parameter Settings
CP2000
12.1-08-3
the error is small. It gradually increases the controller output to eliminate the error until it is
zero. This stabilizes the system without a steady-state error by using proportional gain
control and integral time control.
Adjustment: The integral time (I) accumulates from the time difference, if the vibration
cycle is longer than the setting for integral time, the integration enhances.
Increase the integral time (I) to reduce the vibration.
Increase: Reduce the overshoot, excessive adjustment causes worse transient response.
Decrease: Faster transient response, but the transient time will be longer, and takes more
time to achieve the steady state. Excessive adjustment causes larger overshoot.
Differential control (D):
The controller output is proportional to the differential of the controller input. During
elimination of the error, oscillation or instability may occur. Use the differential control to
suppress these effects by acting before the error. That is, when the error is near zero, the
differential control should be zero. Use proportional gain (P) and differential control (D) to
improve the system state during PID adjustment.
Adjustment: When the vibration cycle is shorter and continuous, it means that the
differential time setting is too large, and causes excessive output. Decrease
the setting of D gain to reduce the vibration. If the D gain is set to 0, adjust the
PID control again.
Using PID control in a constant pressure pump feedback application:
Set the application’s constant pressure value (bar) to be the set point of PID control. The pressure
sensor sends the actual value as the PID feedback value. After comparing the PID set point and
PID feedback, an error displays. The PID controller calculates the output by using proportional
gain (P), integral time (I) and differential time (D) to control the pump. It controls the drive to use a
different pump speed and achieves constant pressure control by using a 4–20 mA signal
corresponding to 0–10 bar as feedback to the drive.
Содержание CP2000 Series
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Страница 12: ...Chapter 1 Introduction CP2000 1 3 1 2 Model Name 1 3 Serial Number...
Страница 35: ...Chapter 1 Introduction CP2000 1 26 Digital Keypad KPC CC01 Figure 1 32...
Страница 36: ...Chapter 2 Installation CP2000 2 1 Chapter 2 Installation 2 1 Mounting Clearance 2 2 Flow and Power Dissipation...
Страница 42: ...Chapter 3 Unpacking CP2000 3 1 Chapter 3 Unpacking 3 1 Unpacking 3 2 The Lifting Hook...
Страница 72: ...Chapter 4 Wiring CP2000 4 1 Chapter 4 Wiring 4 1 System Wiring Diagram 4 2 Wiring...
Страница 77: ...Chapter 4 Wiring CP2000 4 6 Figure 4 5...
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Страница 171: ...Chapter 7 Optional Accessories CP2000 7 62 EMC Filter Dimension EMC filter model name EMF021A23A EMF014A43A Figure 7 45...
Страница 172: ...Chapter 7 Optional Accessories CP2000 7 63 EMC filter model name EMF018A43A Figure 7 46...
Страница 173: ...Chapter 7 Optional Accessories CP2000 7 64 EMC filter model name EMF056A23A EMF039A43A Figure 7 47...
Страница 174: ...Chapter 7 Optional Accessories CP2000 7 65 EMC filter model name KMF370A KMF3100A Figure 7 48...
Страница 175: ...Chapter 7 Optional Accessories CP2000 7 66 EMC filter model name B84143D0150R127 Figure 7 49...
Страница 176: ...Chapter 7 Optional Accessories CP2000 7 67 EMC filter model name B84143D0200R127 Figure 7 50...
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Страница 242: ...Chapter 8 Option Cards CP2000 8 5 Communication extension card Slot 1 CMC PD01 CMC DN01 CMC EIP01 EMC COP01 CMC PN01...
Страница 245: ...Chapter 8 Option Cards CP2000 8 8 I O Relay Card EMC D42A EMC D611A EMC R6AA EMC BPS01 EMC A22A...
Страница 247: ...Chapter 8 Option Cards CP2000 8 10 I O Relay Card EMC D42A EMC D611A EMC R6AA EMC BPS01 EMC A22A...
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Страница 277: ...Chapter 09 Specifications CP2000 9 12 575V 690V Figure 9 3 Altitude Derating Curve Figure 9 4...
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Страница 281: ...Chapter 09 Specifications CP2000 9 16 9 8 Efficiency Curve Figure 9 11 Figure 9 12...
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Страница 560: ...Chapter 12 Description of Parameter Settings CP2000 12 2 00 6 III PM SVC Carrier Start up Adjustment...
Страница 835: ...Chapter 16 PLC Function Applications CP2000 16 152 Step 3 Physical configuration CP2000 Step 4 Write to PLC program...
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