4-104
Figure 4.3.35 Analog input and parameter
. For the gain and bias settings, refer to Figure 4.3.36.
gain : Set the frequency reference corresponding to 10V, -10V or 20mA inputs, and
as the largest proportion of the maximum output frequency (set the maximum
output frequency 01-02 to 100%).
bias : Set the frequency reference corresponding to 0V or 4 mA inputs, and as the
largest proportion of the maximum output frequency (set the maximum output
frequency 01-02 to 100%).
Figure 4.3.36 Gain and bias operations (for frequency referency signal)
(2) AI1 signal scanning and filtering time (04-01)
(3) AI2 signal scanning and filtering time (04-06)
. All analog inputs (AI1, AI2) have their own step delay digital filters. This setting is used
to filter out the momentary change of the analog input signal or the noise. When this
setting is added, the system response will reduce and the interference protection will
increase.
. Filter time constant (Setting range: 0.00 to 2.00 seconds) is defined as the time that the
input step signal reaches 63% of the final value.
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