12.7 H: TERMINALS
704 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual
Combine Upper/Lower Limits of the Frequency Reference and the Up/Down Commands
Set the upper limit value of the frequency reference to d2-01 [FRef Upper Limit].
Use an analog input or d2-02 [FRef Lower Limit] to set the lower limit value of the frequency reference. The
configurable values change when the setting for d4-10 [Up/Dw Frq Low Limit Select] changes. When you input a
Run command, these are the lower limits of the frequency reference:
• When the lower limit of the frequency reference is set only for d2-02, the drive accelerates the motor to the
lower limit value of the frequency reference at the same time that you input the Run command.
• When the lower limit of the frequency reference is set only for analog input, the drive accelerates the motor to
the lower limit value of the frequency reference when the Run command, and Up command or Down command
for the drive is enabled. When only the Run command is enabled, the motor does not start.
• When these conditions occur, the drive accelerates the motor to the d2-02 setting value when the Run command
is input. When the motor accelerates to the setting value of d2-02, if the Up/Down command is enabled, the
motor accelerates to the lower limit value of the analog input.
– The lower limit value of the frequency reference is set for the analog input and d2-02
– The lower limit value of the analog input is higher than the setting value of d2-02
Note:
Refer to “d4-10 Up/Dw Frq Low Limit Select on page 620” for details.
Figure 12.80 shows an example of how Up/Down command operates. In this example, the lower limit value of the
frequency reference is set in d2-02. The time chart when FRef Hold Selection [d4-01] is enabled and disabled is
shown in Figure 12.80.
Figure 12.80 Up/Down Command Time Chart
■ 63: Down Command
Setting Function Description
63 Down Command
Sets the command to decrease the drive frequency reference using a button. Users must also set Setting 62 [Up Command].
ON : Decreases the frequency reference.
OFF : Holds the current frequency reference.
Note:
• If you set only the Up command or only the Down command, the drive will detect oPE03 [Multi-Function Input Setting Err].
• If you set two or more of these functions at the same time, the drive will detect oPE03:
–Up/Down command
–Accel/Decel Ramp Hold
–Reference sample hold
–Offset Frequency 1, 2, 3 addition
–Up/Down 2 Command
• To use the Up/Down command when the keypad is in REMOTE mode or b1-01 ≠ 0 [Freq. Ref. Sel. 1 ≠ Keypad]. If you use Ext Ref 1/2
[H1-xx = 9] to switch to parameter b1-15 [Freq. Ref. Sel. 2], the Up/Down command will not function.
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