No.

(Hex.)

Name

Description

Default

(Range)

F2-01

(038F)

Analog Input Function Selection

Sets the input method for the analog reference used with AI-A3.

0

(0, 1)
Note:

When the AI-A3 card is not mounted in the drive, analog input terminals A1 to A3 on the drive are always enabled. The setting of this parameter does not have an effect.

0
3 Independent Channels

Set F2-01 = 0 to increase the precision of A/D conversion when you use the functions for terminals A1 to A3 on the drive as they are. You can input the MFAI signal from terminals V1 through V3 for AI-A3. The functions for terminals A1, A2, and A3 on the drive are sent to terminals V1, V2, and V3 for AI-A3. Use gain and bias adjustment when you input current to set signals to have negative numbers.

Note:

  • Set b1-01 = 1 [Frequency Reference Selection 1 = Analog Input] to set inputs individually.

  • If F2-01 = 0 and b1-01 = 3 [Option PCB], the drive will detect oPE05 [Run Cmd/Freq Ref Source Sel Err].

Figure 1 shows the individual input of analog inputs. H3-xx parameters set the function to input the analog reference received from the AI-A3 card and to adjust the gain and bias of these signals.

Figure 1. Analog Input Reference Individual Input Block Diagram
1
3 Channels Added Together

Set b1-01 = 3 [Option PCB] to set addition input.

You can input the frequency reference directly. The sum value when you add the input from terminals V1 to V3 becomes the frequency reference.

Set F2-01 = 1 to use the AI-A3 card as addition input.

Figure 2 shows addition input. Use F2-02 [Analog Input Option Card Gain] and F2-03 [Analog Input Option Card Bias] to adjust the analog reference gain and bias for addition input.

Figure 2. Analog Input Reference Addition Input Block Diagram

Use F2-02 and F2-03 to Adjust the Input Status

When the bias set in F2-03 is 0%, the gain in F2-02 and the addition input value set the ratio (%) of the maximum output frequency output as the frequency reference.

Note:

A voltage input of 10 V or a current input of 20 mA is the 100% value for each channel.

The bias set in F2-03 sets the ratio (%) of the maximum output frequency output as the frequency reference when the addition input value is 0%.

Note:

A voltage input of 0 V or a current input of 4 mA is the 0% value for each channel.

  • Example 1:

    When the gain set in F2-02 is 50%, the bias set in F2-03 is 0%, and the addition input value is 100%, the frequency reference is 50% of the maximum output frequency. When the addition input value is 200%, the frequency reference is 100% of the maximum output frequency.

  • Example 2:

    When the gain set in F2-02 is 200%, the bias set in F2-03 is 0%, and the addition input value is 50%, the frequency reference is equivalent to the maximum output frequency. The frequency reference will not be more than the maximum output frequency, although the addition input value is 50% or higher.

  • Example 3:

    When the gain set in F2-02 is 100%, the bias set in F2-03 is 30%, and the addition input value is 0%, the frequency reference is 30% of the maximum output frequency. When the addition input value is 70%, the frequency reference will be equivalent to the maximum output frequency. The frequency reference will not be more than the maximum output frequency, although the addition input value is 70% or higher.