No.

(Hex.)

Name

Description

Default

(Range)

b1-15

(01C4)

Frequency Reference Selection 2

Sets the input method for frequency reference 2.

0

(0 - 4)

This parameter is enabled when H1-xx = 2 [MFDI Function Selection = External Reference 1/2 Selection] is activated.

Note:

  • Push [LO/RE selection key] on the keypad to set the input mode to LOCAL and enter the frequency reference from the keypad.

  • If the frequency reference is 0 Hz or ≤ E1-09 [Minimum Output Frequency] and the drive receives a Run command, the [RUN LED] on the keypad will flash. Check the setting for the frequency reference input and enter a value more than or equal to E1-09.

0
Keypad

Use the keypad to enter the frequency reference.

Use [Up Key] and [Down Key] on the keypad to change the frequency reference.

1
Analog Input

Use MFAI terminals A1, A2, and A3 to input an analog frequency reference with a voltage or current input signal.

  • Voltage Input

    Refer to Table 1 to use a voltage signal input to one of the MFAI terminals.

    Table 1. Frequency Reference Voltage Input

    Terminal

    Terminal Signal Level

    Parameter Settings

    Note

    Signal Level Selection

    Function Selection

    Gain

    Bias

    A1

    0 - 10 V

    H3-01 = 0

    H3-02 = 0

    [Frequency Reference]

    H3-03

    H3-04

    Set DIP switch S1-1 to “V” for voltage input.

    -10 - +10 V

    H3-01 = 1

    A2

    0 - 10 V

    H3-09 = 0

    H3-10 = 0

    [Frequency Reference]

    H3-11

    H3-12

    Set DIP switch S1-2 to “V” for voltage input.

    -10 - +10 V

    H3-09 = 1

    A3

    0 - 10 V

    H3-05 = 0

    H3-06 = 0

    [Frequency Reference]

    H3-07

    H3-08

    Set DIP switch S1-3 to “V” for voltage input.

    Set DIP switch S4 to “AI” for analog input.

    -10 - +10 V

    H3-05 = 1
    Figure 1. Example of Setting the Frequency Reference with a Voltage Signal to Terminal A1
    Note:

    You can also use this diagram to wire terminals A2 and A3.

  • Current Input

    Refer to Table 2 to use a voltage signal input to one of the MFAI terminals.

    Table 2. Frequency Reference Current Input

    Terminal

    Signal Level

    Parameter Settings

    Note

    Signal Level Selection

    Function Selection

    Gain

    Bias

    A1

    4 mA to 20 mA

    H3-01 = 2

    H3-02 = 0

    [Frequency Reference]

    H3-03

    H3-04

    Set DIP switch S1-1 to “I” for current input.

    0 - 20 mA

    H3-01 = 3

    A2

    4 mA to 20 mA

    H3-09 = 2

    H3-10 = 0

    [Frequency Reference]

    H3-11

    H3-12

    Set DIP switch S1-2 to “I” for current input.

    0 - 20 mA

    H3-09 = 3

    A3

    4 mA to 20 mA

    H3-05 = 2

    H3-06 = 0

    [Frequency Reference]

    H3-07

    H3-08

    Set DIP switch S1-3 to “I” for current input.

    Set DIP switch S4 to “AI” for analog input.

    0 - 20 mA

    H3-05 = 3
    Figure 2. Example of Setting the Frequency Reference with a Current Signal to Terminal A2
    Note:

    You can also use this diagram to wire terminals A1 and A3.

Changing between Master and Auxiliary Frequency References

Use the multi-step speed reference function to change the frequency reference input between terminals A1, A2, and A3.

2
Memobus/Modbus Communications

Use MEMOBUS/Modbus communications to enter the frequency reference.

3
Option PCB

Use a communications option card or input option card connected to the drive to enter the Run command.

Refer to the instruction manual included with the option card to install and set the option card.

Note:

If b1-15 = 3 but no option card is connected, then oPE03 [Multi-Function Input Setting Err] will flash on the keypad.

4
Pulse Train Input

Use a pulse train signal from the pulse train input terminal RP to enter the frequency reference.

Do this procedure to make sure that the pulse train signal is operating correctly.

  1. Set b1-15 = 4, H6-01 = 0 [Terminal RP Pulse Train Function = Frequency Reference].

  2. Set H6-02 [Terminal RP Frequency Scaling] to the number of pulses that determine 100% of the frequency reference.

  3. The terminal assigned to H1-xx = 2 [MFDI Function Selection = External Reference 1/2 Selection] is activated.

  4. Enter a pulse train signal on the terminal RP and make sure that the keypad shows a correct frequency reference.