Parameter Details
12
12.8 H: Terminal Function Selection
YASKAWA SIEPC71061753C GA500 Technical Manual 633
Combine Frequency Reference Hold Functions and Up/Down Commands
• When you clear the Run command or when d4-01 = 0 [Freq Reference Hold Selection = Disabled], and you
restart the drive, the Up/Down command resets to 0.
• When d4-01 = 1 [Enabled], the drive saves the frequency reference set during the Up/Down command. When
you cycle the Run command or restart the drive, the drive saves the frequency reference value and restarts the
motor at this frequency value. After you clear the Run command, activate the terminal set for the Up command
or Down command to set the saved reference value to 0.
Note:
Refer to d4-01: Freq Reference Hold Selection on page 574 for more information.
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 [Frequency Reference Upper Limit].
Use an analog input or d2-02 [Frequency Reference Lower Limit] to set the lower limit value of the frequency
reference. The configurable values change when the setting for d4-10 [Up/Down Freq Lower 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 d4-01: Freq Reference Hold Selection on page 574 for more information.
Figure 12.68 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. Figure 12.68 shows the time chart when Freq Reference Retention Select [d4-
01] is enabled and disabled.
Figure 12.68 Up/Down Command Time Chart
■ 11: Down Command
Setting Value Function Description
11 Down Command
Sets the command to use a push button switch to decrease the drive frequency reference. You must also set Setting 10 [Up
Command].
ON : Decreases the frequency reference.
OFF : Holds the current frequency reference.
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