HikRobot ID7000 Series, Руководство пользователя

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ID7000 Series Smart Code Reader User Manual
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9.3.6 Set Frequency Converter Control
The device supports the frequency converter control function that allows the signal frequency of
the trigger device to be different from required input signal frequency. Go to
Frequency Converter
Control → Input Source , and select the input source according to actual demands.
Figure 9-16 Set Frequency Converter Control
Note
● For specific input source, refer to the actual device you got.
The frequency converter module includes PreDivider , Multiplier and PostDivider . The signal after
being processed by these 3 modules is the device’s final trigger signal.
PreDivider
The input signal first enters the PreDivider module, which reduces source signal frequency via
integer division, and then the signal is sent to the Multiplier module. The PreDivider module
reduces periodic jitter on the input signal, and signals above 100 kHz must go through the
PreDivider module to reduce the frequency for the Multiplier can only receive signals in the range
of 10 Hz to 100 kHz frequency range. The periodic jitter of shaft encoder signal is accepted.
Multiplier
After the signal is processed by the PreDivider, it is sent to the Multiplier. The Multiplier multiplies
the signal by an integer to increase its signal frequency, and then the signal is sent to the
PostDivider.
Parameter can be set as rising or falling edge. If a rising edge is set, each rising edge of the signal
coming from the PreDivider will be locked to match the signal of the rising edge, and vice versa.
During this process, make sure do not increase signal frequency via too larger multipliers to avoid
trigger signal frequency beyond the max. line rate of the device. Even if a smaller multiplier is
selected, an excessively high frequency may be generated in the frequency adjustment,
exceeding the max. line rate of the device.
PostDivider
PostDivider reduces signal frequency via an integer factor, and uses the newly generated