H6-01: Terminal RP Pulse Train Function

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.

The drive inputs the PID control feedback value received from terminal RP.

The drive inputs the PID control target value received from terminal RP.

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 1 shows speed control in Simple Closed Loop V/f Mode.