4.1.3.3 Setting a Reference Frequency using Input Current (I2)
You can set and modify a frequency reference using input current at the I2 terminal after selecting
current input at SW 2. Set the 07 (Frequency reference source) code in the DRV group to 5 (I2) and
apply 4–20 mA input current to I2.
DRV 07
Frequency reference
source
Freq Ref Src 5 I2 0–12 -
IN
01
Frequency at maximum
analog input
Freq at 100% 60.00
0–
Maximum
Hz
50
I2 input monitor
I2 Monitor 0.00 0.00–24.00 mA
52
I2 input filter time constant
I2 Filter 10 0–10000 ms
53
I2 minimum input current
I2 Curr x1 4.00
0.00–20.00
mA
54
I2 output at minimum
current (%)
I2 Perc y1 0.00
0–100
%
55
I2 maximum input current
I2 Curr x2 20.00
0.00–24.00
mA
56
I2 output at maximum
current (%)
I2 Perc y2 100.00
0.00–100.00
%
61
I2 rotation direction
options
I2 Inverting 0 No 0–1 -
62
I2 Quantizing 0.04 0*, 0.04–10.00 %
* Quantizing is disabled if ‘0’ is selected.
Input Current (I2) Setting Details
IN-01 Freq at 100%
Configures the frequency reference for operation at the maximum current (when
IN-56 is set to 100%).
• If IN-01 is set to 40.00 Hz, and default settings are used for IN-53–56, 20 mA
input current (max) to I2 will produce a frequency reference of 40.00 Hz.
•
If IN-56 is set to 50.00 (%), and default settings are used for IN-01 (60 Hz) and
IN-53–55, 20 mA input current (max) to I2 will produce a frequency reference
of 30.00 Hz (50% of 60 Hz).
Used to monitor input current at I2.
IN-52 I2 Filter
Configures the time for the operation frequency to reach 63% of target frequency
based on the input current at I2.
IN-53 I2 Curr x1–IN-
56 I2 Perc y2
Configures the gradient level and off-set value of the output frequency.