5.3 Description of Function Codes 5.3.1 F codes (Fundamental functions)
[ 2 ] Setting the frequency with analog input (F01 = 1 to 3, 5, 6)
It is possible to arbitrarily specify a frequency setting from the analog inputs (voltage value to be input to terminal
[12], [V2], and [C1] (V3 function), or current value to be input to terminal [C1] (C1 function)) by multiplying them with
the gain and adding the bias. The polarity can be selected and the filter time constant and offset can be adjusted.
Table Adjustment constants of Frequency setting 1
[12] + [C1]
(C1 function)
(Set by result of
addition)
Table Adjustment constants of Frequency setting 2
[12] + [C1]
(C1 function)
(Set by result of
addition)
Offsets (C31, C36, C41, C74)
C31, C36, C41 or C74 configures an offset for an analog voltage/current input. The offset also applies to signals
sent from the external equipment.
Filters (C33, C38, C43, C76)
C33, C38, C43 and C76 provide the filter time constants for the voltage and current of the analog input. The larger
the time constant, the slower the response. Specify the proper filter time constant taking into account the response
speed of the machine (load). If the input voltage fluctuates due to line noises, increase the time constant.
Polarity selection for terminal (C35, C45, C78)
C35, C45 and C78 configures the polarity and therefore the input range for analog input voltage.
Terminal [12], [V2], [C1] (V3 function) input specifications
-10 to +10 V (factory default)
0 to +10 V (Negative value of voltage is regarded as 0 V)
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