12-10-1
Chapter 12
Inverter Functions
12.10 Process Control Conforming to
the System
12.10.1
Use PID Control
• We want to perform process-control for flow rate,
air flow, pressure and others.
• We want to switch PID control and normal control.
• We want to set soft-start for prevention of water
hammer of the pump.
• We want to conserve energy by stopping the motor
when the flow rate, air flow, pressure and others
exceed a certain output.
• SJ-P1 is equipped with 4 independent PID
functions, and each PID can be set independently.
• Four PID functions can be used for motor control by
switching the [PIO1]/[PIO2] terminals.
• PID not used for motor control can be used for
operation of exterior PID not related to inverter
control freely.
This helps to save space and cost because there is
no need to install a separate PID controller.
• PID1 can be controlled based on 3 deviations.
• Connecting PID1 and PID2 can make 2-layer PID
control possible.
Q
A
MOTOR
PUMP
Exterior
equipment
Exterior
equipment
Exterior
equipment
Sensor
Sensor
Sensor
PID1
PID2
PID3
PID4
+
-
-
-
-
+
+
+
PID1 target
value
PID2 target
value
PID3 target
value
PID4 target
value
SJ-P1
Motor
Control
Pressure gauge
Summary of Contents for SJ Series
Page 39: ...5 4 Chapter 5 Included Items Memo ...
Page 55: ...6 16 Chapter 6 Installation Memo ...
Page 91: ...7 36 Chapter 7 Wire Connection and Optional Devices Memo ...
Page 135: ...9 40 Chapter 9 Operating Instructions Memo ...
Page 145: ...10 10 Chapter 10 Test Run Memo ...
Page 159: ...12 2 6 Chapter 12 Inverter Functions Memo ...
Page 169: ...12 3 10 Chapter 12 Inverter Functions Memo ...
Page 195: ...12 5 8 Chapter 12 Inverter Functions Memo ...
Page 217: ...12 8 12 Chapter 12 Inverter Function Memo ...
Page 287: ...12 10 32 Chapter 12 Inverter Functions Memo ...
Page 303: ...12 11 16 Chapter 12 Inverter Functions Memo ...
Page 349: ...12 15 8 Chapter 12 Inverter Function Memo ...
Page 395: ...12 17 34 Chapter 12 Inverter Functions Memo ...
Page 397: ...12 18 2 Chapter 12 Inverter Functions Memo ...
Page 415: ...12 19 18 Chapter 12 Inverter Function Memo ...
Page 581: ...15 10 Chapter 15 Optional Cassettes Memo ...
Page 591: ...16 10 Chapter 16 ProDriveNext EzSQ Memo ...
Page 642: ...18 49 Chapter 18 Tips FAQ Troubleshooting Memo ...
Page 650: ...19 8 Chapter 19 Maintenance and Inspection Memo ...
Page 781: ...Appendix 1 70 Appendix 1 List of Parameters Memo ...