YASKAWA CIPR-GA50C series Technical Manual

12.3 b: Application
526 YASKAWA SIEPC71061753C GA500 Technical Manual
Table 12.29 PID Control Applications
Application Control Content Sensors Used
Speed Control • The drive uses a feedback signal for the machine
speed, and adjusts that speed to align with the target
value.
• The drive uses speed data from other machinery as the
target value to do synchronous control. The drive then
adds that target value to the feedback from the
machine it is operating to align its speed with the other
machinery.
Tacho generator
Pressure control The drive uses feedback from the actual pressure to hold
constant pressure.
Pressure sensor
Flow control The drive uses feedback from the actual flow to hold
constant flow.
Flow rate sensor
Temperature control The drive uses feedback from the actual temperature to
control a fan and hold constant temperature.
Thermocoupler, thermistor
■ Input Methods for the PID Setpoint
Use b5-01 [PID Mode Setting] to select how the PID setpoint is input to the drive.
One of the inputs in Table 12.30 will be the PID setpoint.
When the input in Table 12.30 is disabled, either the frequency reference set in b1-01 [Frequency Reference
Selection 1] or b1-15 [Frequency Reference Selection 2] will be the PID setpoint.
Table 12.30 Input Methods for the PID Setpoint
Input Methods for the PID Setpoint Setting Value
MFAI terminal A1 Set H3-02 = C [Terminal A1 Function Selection = PID Setpoint].
MFAI terminal A2 Set H3-10 [Terminal A2 Function Selection] = C.
MEMOBUS/Modbus register 0006H Sets MEMOBUS/Modbus register 000FH (Control Selection Setting) bit 1 to 1 (PID
setpoint input). Enters the PID setpoint to MEMOBUS/Modbus register 0006H (PID
Target, 0.01% units, signed).
Pulse train input terminal RP Set H6-01 = 2 [Terminal RP Pulse Train Function = PID Setpoint Value].
b5-19 [PID Setpoint Value] Set b5-18 = 1 [b5-19 PID Setpoint Selection = Enabled]. Enters the PID setpoint to b5-
19.
Note:
If you set two inputs for the PID setpoint, it will trigger operation error oPE07 [Analog Input Selection Error].
■ Entering the PID Feedback Value
You can use two methods to input the PID feedback value to the drive. One method uses a single feedback signal
for usual PID control. The other method uses two signals. The difference between those signals sets the deviation.
• Use a single feedback signal.
Use Table 12.31 to select how the feedback signal is input to the drive for PID control.
Table 12.31 PID Feedback Input Method
PID Feedback Input Method Setting Value
MFAI terminal A1 Set H3-02 = B [PID Feedback].
MFAI terminal A2 Set H3-10 = B.
Pulse train input terminal RP Set H6-01 = 1 [PID Feedback Value].
• Use two signals, and use the difference between those signals as the feedback signal.
The drive uses two feedback signals, and the difference between those signals becomes the deviation.
Use Table 12.32 to select how the second feedback value is input to the drive. The drive calculates the deviation
of the second feedback value. Set H3-02 or H3-10 = 16 [Terminal A1 or A2 Function Selection = Differential
PID Feedback] to enable the second feedback signal used to calculated the deviation.
Table 12.32 PID Differential Feedback Input Method
PID Differential Feedback Input Method Setting Value
MFAI terminal A1 Set H3-02 = 16 [Differential PID Feedback].
MFAI terminal A2 Set H3-10 = 16.
Note:
If you set H3-02 and H3-10 = 16, it will trigger oPE07 [Analog Input Selection Error].

YASKAWA CIPR-GA50C series Specifications

General

Brand	YASKAWA
Model	CIPR-GA50C series
Category	Controller
Language	English