Parameter Details
12
12.8 H: Terminal Function Selection
YASKAWA SIEPC71061753C GA500 Technical Manual 685
■ H6-01: Terminal RP Pulse Train Function
No.
(Hex.)
Name Description
Default
(Range)
H6-01
(042C)
Terminal RP Pulse Train
Function
Sets the function for pulse train input terminal RP.
0
(0 - 3)
0 : Frequency Reference
When b1-01 = 4 [Frequency Reference Selection 1 = Pulse Train Input] or b1-15 = 4 [Frequency Reference
Selection 2 = Pulse Train Input], the drive inputs the frequency reference received from terminal RP.
1 : PID Feedback Value
The drive inputs the PID control feedback value received from terminal RP.
2 : PID Setpoint Value
The drive inputs the PID control target value received from terminal RP.
3 : Speed Feedback (V/F Control)
Select V/f Control method to enable simple encoder feedback.
Use motor speed feedback for better speed control precision. The drive compares the frequency reference to the
motor speed feedback received from the encoder, and uses the ASR function to compensates for motor slip. You
cannot use input terminal RP used for the simple encoder to detect the direction of motor rotation. Use a different
method to detect motor rotation.
Use these methods to detect the direction of motor rotation.
• Use MFDI
Set MFDI H1-xx = 7E [Reverse Rotation Identifier]. When the configured terminal is activated, the motor
operates in Reverse run. When the terminal is deactivated, the motor operates in Forward run.
Use an encoder that outputs 2-tracks (phase A, B) to detect the direction of motor rotation.
• Use the frequency reference
When you do not use the MFDI, the Forward/Reverse run command is the same as the direction of motor
rotation.
Figure 12.102 shows speed control in Simple Closed Loop V/f Mode.
Figure 12.102 Simple Closed Loop Speed Control Block Diagram
Enable Simple Closed Loop V/f Mode
1. Connect the encoder output pulse wiring to terminal RP.
2. Set A1-02 = 0 [Control Method Selection = V/f Control].
3. Set H6-01 = 3.
4. Set H6-02 [Terminal RP Frequency Scaling] to the speed feedback (pulse train input signal) frequency at the
time when the frequency reference is 100%.
Make sure that H6-04 [Terminal RP Function Bias] = 0% and H6-03 [Terminal RP Function Gain] = 100%.
5. Select the detection method for the direction of motor rotation.
When you use an MFDI, set H1-xx = 7E.
6. Set C5 parameters related to ASR gain and integral time to adjust responsiveness.
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