Input Terminal Functions
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îš‹ Analog Frequency Reference Sample/Hold
If one of the parameters H1-01 to H1-05 (digital input terminal S3 to S7 function selection) is set to 1E (ana-
log frequency reference sample/hold) the analog frequency reference will be sampled and held whenever the
digital input remains ON for at least 100 miliseconds.
Fig 6.46 Sample/Hold Analog Frequency
îš„Related Parameters
Multi-function Digital Inputs (H1-01 to H1-05)
îš„Setting Precautions
An OPE03 alarm will occur if the following functions are programmed to digital inputs additional to the ana-
log frequency reference sample/hold function:
• Acceleration/Deceleration Ramp Hold (setting A)
• UP/DOWN (settings 10/11)
• Trim Control Increase/Decrease (settings 1C/1D)
îš„Application Precautions
• When performing analog frequency reference sample/hold of, be sure to close the digital input for 100
msec or more. If the input is ON for less than 100 msec it will be ignored.
• The frequency reference value that is held will be deleted when the power supply is turned OFF.
Set Value Function
1E Analog frequency reference sample/hold (ON: Frequency reference sample/hold)
Sample/hold
command
Analog input
Frequency reference
The analog value 100 ms after the command is turned ON is used as the frequency reference.
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