YASKAWA AC Drive-A1000 User Manual

n
Using PID Control
Applications for PID control are listed in the following table.
Application Description Sensors Used
Speed Control
Machinery speed is fed back and adjusted to meet the target value. Synchronous control is
performed using speed data from other machinery as the target value
Tachometer
Pressure Maintains constant pressure using pressure feedback. Pressure sensor
Fluid Control Keeps flow at a constant level by feeding back flow data. Flow rate sensor
Temperature
Control
Maintains a constant temperature by controlling a fan with a thermostat.
Thermocoupler,
Thermistor
n
PID Setpoint Input Methods
The PID setpoint input depends on the PID function setting in parameter b5-01.
If parameter b5-01 is set to 1 or 2, the frequency reference in b1-01 (or b1-15) or one of the inputs listed in Table 5.8 becomes
the PID setpoint.
If b5-01 is set to 3 or 4, then the PID setpoint can be input from one of the sources listed in Table 5.8.
Table 5.8 PID Setpoint Sources
PID Setpoint Source Settings
Analog Input A1 Set H3-02 = C
Analog Input A2 Set H3-10 = C
Analog Input A3 Set H3-06 = C
MEMOBUS/Modbus Register 0006 H Set bit 1 in register 000F H to 1 and input the setpoint to register 0006 H
Pulse Input RP Set H6-01 = 2
Parameter b5-19 Set parameter b5-18 = 1 and input the PID setpoint to b5-19
Note: A duplicate allocation of the PID setpoint input will cause an oPE alarm.
n
PID Feedback Input Methods
Input one feedback signal for normal PID control or input two feedback signals can for controlling a differential process value.
Normal PID Feedback
Input the PID feedback signal from one of the sources listed below:
Table 5.9 PID Feedback Sources
PID Feedback Source Settings
Analog Input A1 Set H3-02 = B
Analog Input A2 Set H3-10 = B
Analog Input A3 Set H3-06 = B
Pulse Input RP Set H6-01 = 1
Note: A duplicate allocation of the PID feedback input will result in an oPE alarm.
Differential Feedback
The second PID feedback signal for differential feedback can come from the sources listed below. The differential feedback
function is automatically enabled when a differential feedback input is assigned.
Table 5.10 PID Differential Feedback Sources
PID Differential Feedback Source Settings
Analog Input A1 Set H3-02 = 16
Analog Input A2 Set H3-10 = 16
Analog Input A3 Set H3-06 = 16
Note: A duplicate allocation of the PID differential feedback input will result in an oPE alarm.
5.2 b: Application
142
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual

YASKAWA AC Drive-A1000 Specifications

General

Brand	YASKAWA
Model	AC Drive-A1000
Category	Controller
Language	English